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TEA19031AT usb-pd controller for smps rev. 2 1 december 2017 product data sheet 1 general description the TEA19031AT is a highly configurable secondary side smps controller that is available in many factory configured versions. section 15 gives an overview of the off- the-shelf available versions of the TEA19031AT . to inquire about the possibilities of customer-specific versions, contact your local sales representative. the TEA19031AT supports the following protocols: ? usb power delivery (usb-pd) 2.0 (certified: 2017-03-22; test id: 100054) ? usb type-c v1.2 together with the tea193x primary controller and the tea199x secondary side synchronous rectifier (sr) controller, a switched mode power supply (smps) can be built. the smps has a small form factor and ultra-high efficiency over the entire load range. this power supply has an extremely low no-load input power (< 30 mw). it meets efficiency requirements like coc tier-2, eup lot 6, and doe v6. the complete smps system can be built at low cost with a minimum number of external components. the TEA19031AT has a high level of digital integration. it incorporates all circuits, including a charge pump to drive an external nmos load switch directly. it also incorporates a usb pd physical interface (phy) and an integrated driver for fast output discharge. the output voltage and output current are continuously measured. they are used to control the smps. the ntc pin can continuously measure the adapter temperature or the temperature in the cable/connector. optionally, the ntc pin can also be used for other features, like otp or synchronous rectification (sr). the die temperature of the TEA19031AT is measured and protected via an internal temperature sensor. the TEA19031AT provides best-in-class charging safety. to ensure the safe operation of the smps, it incorporates all required protections. these protections cover up to 19 different failure use cases (see section 2.3 ). to ensure correct operation under all conditions, all protections are implemented in hardware. so, when the microcontroller stops, the protections are still functional. if an output short circuit occurs, the power dissipation from the mains input in the adapter is less than 50 mw. for output voltage/current regulation, and protection, only a single optocoupler is required in the application. the TEA19031AT operates in constant voltage (cv) mode with better than 2 % voltage accuracy or in constant current (cc) mode with better than 2 % full load current accuracy.
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 2 / 37 2 features and benefits 2.1 general ? best-in-class full safe application for high-power adapters, which gives complete protection against overload conditions in the load (e.g. phone) ? wide output voltage operating range (2.9 v to 20 v) ? ultra-high efficiency together with tea193x qr/dcm controller and tea199x sr controller ? very low no-load power (< 30 mw for the complete system solution) ? high power density ? dedicated sw pin to drive external nmos directly ? constant voltage (cv) and constant current (cc) control ? precise voltage and current control with low minimum step size (voltage 12-bit dac, current 10-bit dac) ? continuous accurate measurement of output voltage and output current ? low-cost so10 package (suitable for reflow soldering and wave soldering) ? low-cost bill of materials (bom; 15 external components) ? embedded mcu (with rom, ram, and mtp memory) ? discharge pin for fast discharge ? built-in series regulator and cable compensation ? non-volatile mtp memory for storage of system configuration parameters 2.2 protocol support ? usb-pd 2.0 (certified: 2017-03-22; test id: 100054) and usb type c v1.2 ? supports unstructured vendor defined messages (vdms). 2.3 protections ? internal overtemperature protection (otp) ? adaptive overvoltage protection (ovp) ? adaptive undervoltage protection (uvp) ? overcurrent protection (ocp) ? undervoltage lockout (uvlo) protection ? output short protection (osp) ? open-supply protection (osup) ? overvoltage protection cc1, and cc2 pins ? soft short protection at the cc1 and cc2 pins ? soft short protection at the output due to dedicated functionality to drive an external load switch, which is available in hardware, the TEA19031AT ensures safe operation under all conditions. 3 applications ? usb-pd 2.0 and usb type-c v1.2 chargers with optional vdm support for smartphones, tablets, and laptops
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 3 / 37 4 ordering information table 1.?ordering information package type number name description version tea19031aet /1 tea19031aft /1 tea19031agt /1 tea19031amt /1 tea19031aot /1 tea19031aqt /1 so10 plastic small outline package; 10 leads; body width: 3.9 mm; body thickness 1.35 mm sot1437-1 5 marking table 2.?marking type number marking code tea19031aet /1 ea19031ae tea19031aft /1 ea19031af tea19031agt /1 ea19031ag tea19031amt /1 ea19031am tea19031aot /1 ea19031ao tea19031aqt /1 ea19031aq
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 4 / 37 6 block diagram cc1 disch vcc s w cc2 aaa-026064 parameter settings charge pump typec condet i2c (m/s) proto bg_det sw_off supply block bg_ok rom osc o r uvlo otp sw_off ram c ana_ctrl d a c digital amp phy c c block gnd ntc isns d a c d a c d a c opt o vsns 4 bits ref uvlo 30 a bg_ok vout_below_vcc vout_below_0p8 vcc_ below_xxx ovp 20 ma 0.8 v ocp a d c figure 1.? TEA19031AT block diagram
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 5 / 37 7 pinning information 7.1 pinning 1 2 3 4 1 0 9 8 7 g n d vcc i c 5 6 s w d i s c h c c 2 opt o ntc isns vsns c c 1 aaa-018957 figure 2.? TEA19031AT pinning diagram (sot1437-1) 7.2 pin description table 3.?pin description symbol pin description vcc 1 supply voltage opto 2 opto driver ntc 3 external temperature measurement isns 4 current sense input vsns 5 voltage sense input cc2 6 type c cc2 line detection and usb-pd communication cc1 7 type c cc1 line detection and usb-pd communication disch 8 fast discharge sink gnd 9 ground sw 10 nmos gate drive output
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 6 / 37 8 functional description the TEA19031AT can be considered as a versatile replacement for the well-known tl431 shunt regulator series, where: ? the vsns pin takes the role of the ref input of the tl431 ? the opto pin the role of the cathode ? the gnd pin the role of the anode in addition to the constant voltage (cv) mode, which is regulated via the vsns pin, the system supports constant current (cc) mode. the current control loop is regulated and the cable compensation is added via the isns pin. alternatively, the isns input can be used for overcurrent protection (ocp). several other protections are available. for guaranteed safety, all protections are implemented in hardware. so, even when the microcontroller stops, the protections are still functional. the output voltage and the output current can be controlled via usb-pd using the cc pins. the output current and the output voltage are continuously measured via an integrated ad-converter. the values can be requested via the usb-pd protocol. the applied time constant of the digital filter is initialized via the firmware. a dedicated signal that indicates a stable output voltage/output current for a reliable measurement is available. it can be used, for example, to determine and monitor the resistance of the cable connected between the charger and the portable device. the external temperature, measured via the ntc pin is continuously monitored. from the ntc voltage and applied current, the controller calculates the corresponding temperature. this temperature is communicated to the portable device. for some variants, an otp function is also added to this external temperature measurement. the available protections, in combination with the nmos load switch, ensure a fully safe operation with only one optocoupler required. when the optocoupler fails, the primary ovp ensures a safe application, as its level can be set at a fixed percentage above the maximum regulated output voltage. all essential protections are implemented in hardware. they are independent from the processor actions. the TEA19031AT fully supports the type-c connector standard. when a type c receptacle is used, the cc1/cc2 pair is used for plug attach/detach detection. after a detection, communication takes place via the same cc pins according to the usb-pd communication standard. the usb-pd specification requires the use of a load switch and certain discharge behavior of the output voltage at the connector v bus . so, to drive the gate of an external nmos switch, the TEA19031AT is equipped with an sw pin. to be able to discharge v bus using an external resistor in series with an internal switch, the TEA19031AT is also equipped with a disch pin.
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 7 / 37 8.1 start-up and supply the TEA19031AT is supplied via the vcc pin connected to the secondary dc voltage of an ac-to-dc smps converter (see figure 6 ). to control the primary side controller, this vcc voltage is regulated via an integrated voltage/current control loop with external loop compensation and an external optocoupler. this optocoupler is part of the gain loop of the primary side smps controller. at each start-up and after power-on reset, the optocoupler current is initially zero. so, the ac-to-dc converter starts up with full output power, resulting in a rapid increase of the vcc voltage. due to the low v cc(start) level (3 v), the TEA19031AT ensures that it is fully operating before the v cc reaches the default initial regulation levels. these default values of the initial regulation levels are programmed in the non-volatile memory (mtp) are 5 v and 3 a, respectively. at power-on reset, the safe default values, which are read from mtp, are set. when the v cc voltage is below the uvlo level, the external nmos load switch is off. when the output is shorted while the load switch is closed, the uvlo is also triggered. the load switch is then immediately opened and the system restarts after the safe restart timer. when the v cc exceeds the uvlo level, all circuits, the initial dac value, and the resistive divider ratio are initialized. the system regulates the output to 5 v with a limited output current of 3 a. to minimize the output voltage overshoot after start-up, an internal 20 ma current sink is applied to vcc when the vcc voltage exceeds v o(default) 1.05. the sink current remains active until the vcc voltage has dropped to below v o(default) 1.05 again. after the output voltage has stabilized, the load switch is turned on and the system waits for an attach. as long as no load is attached, the vcc supply current is reduced by disabling some internal circuitry. in this way, the no-load input power is minimized. when the voltage on only one of the cc pins drops to below the v ih(rd) level, an attach is detected. if an attach is detected, all internal circuitries are enabled. the voltages can be changed via the usb-pd protocol. 5 v regulation 20 ma discharge v c c initialization 1.05 x v o(default) uvlo aaa-023848 figure 3.?start-up sequence the TEA19031AT can continuously operate on supply voltages up to 21 v. the ovp level is set to default 120 % or 125 % of the programmed output voltage. the uvp level
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 8 / 37 is continuously set to default 60 % of the programmed output voltage. the voltage on the vcc pin is used to detect an ovp and uvp. if the supply voltage drops to below the uvlo level, the system returns to the no-supply state and opens the load switch. 8.2 voltage loop the analog constant voltage (cv) loop regulates vcc such that the voltage on the vsns pin equals the internal reference voltage. for the tea19031aet and tea19031aft (maximum output 20 v), with the external resistor divider from the vcc pin to the vsns pin at 1/8.325, the output is 8.325 times the voltage on the vsns pin. any deviation from this external resistor value results in a different gain value and so a different output voltage. the cv loop is regulated by varying the current drawn into the opto pin, so it is compatible with the optocoupler feedback used in most ac-to- dc converters. an external series rc combination between the opto and vsns pins defines the dynamic behavior of the integrating part. an external resistor in series with the optocoupler defines the dynamic behavior of the proportional part of the regulation loop (see section 13.3 ). for the tea19031agt and tea19031aqt applications up to 13 v, the gain is set to 5.476. so these applications require an external resistor divider of 1/5.476. the resistor divider layout must be close to the TEA19031AT (see section 13.1 for details). the TEA19031AT incorporates several protections. all these protections operate in safe restart mode. the load switch is opened immediately. when the fault condition disappears after a certain delay and v cc is at the default value again, the load switch is closed. for more information on the protections (see section 8.11 ). when a new voltage is requested via the usb-pd communication protocol, the internal reference voltage is updated to this new setting within 20 s. the control loop via the optocoupler generates the requested output voltage following the speed of the smps system. if there is a transition down, a predefined ramp down sequence is followed to prevent that a high undershoot occurs. the ramp down is done via a parabolic slope control. for a transition up, no special measures are required to prevent an overshoot when a protection is triggered. the reason is that the charging current of the loop capacitor lifts the voltage on the vsns pin when the v cc voltage in the application increases. the parabolic discharge curve (see figure 4 ; patent pending) initially causes the voltage loop to saturate, due to the initial rapid ramp down. however, it allows the loop to recover and to resume regulation toward the end of the curve. the total parabolic sequence time is chosen such that no undershoot under the final end value occurs.
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 9 / 37 aaa-021703 v c c opt o a. circuit aaa-021705 discharge f (parabola factor) loop saturated loop reference parabola depth v c c v opto b. curve figure 4.?parabolic transition down (no-load) 8.3 current loop the voltage drop across a small external series resistor between the output return terminal and the converter ground is supplied to the isns pin and is a measure for the output current. internally, an amplifier boosts up the voltage at the isns pin by a gain factor 50. the boosted voltage is then converted to a current with an internal resistance gain value. for the tea19031aet , the tea19031aft , the tea19031amt , and the tea19031aot to comply with this internal resistance gain, the external resistor must be exactly 10 m (see section 15 ). for the tea19031agt and the tea19031aqt , it must be 5 m (see section 15 ). any deviation from the mtp value, e.g. due to pcb-layout imperfections, causes a current error and must be corrected (see section 13.2 ). the external resistor value and internal multiplication factor must be such that the output of the amplifier is limited to 2.5 v. if, for example, the maximum output current is 5 a, an external resistor of below 10 m (e.g. 5 m) must be used for a multiplication factor of 50. for smps voltage and current stability reasons, an external series rc combination must be connected between the opto pin and the isns pin (see section 13.4 ).
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 10 / 37 8.4 cable compensation the cable compensation is proportional with the r sense and the resistive divider. the maximum cable compensation for a 1 a current can be calculated with the following equation: r sense * 8 / r div . when r sense is 10 m and the resistive divider is 1/8.325, the maximum cable compensation is 666 mv/a. mtp sets the default cable compensation and can be read in section 15 . setting the cable compensation above 200 mv/a is not recommendable. 8.5 load switch the load can be disconnected from the adapter output voltage via an external low-cost nmos transistor (see figure 6 ). the load switch is connected between vcc and v bus . to control the nmos, the TEA19031AT has a dedicated switch drive output (sw pin). this output is supplied with an output voltage of 6 v above v cc via an internal charge pump. as long as v cc is below the uvlo level or if the vcc connection is open, the sw pin is held low, ensuring that the load switch is off. to ensure that the nmos is also kept off when the sw pin is disconnected, an external (high-ohmic) resistor is required between the gate of the nmos and v bus . to overcome the influence of the back-gate diode, it is also possible to apply two nmos switches in series, with their sources connected together. 8.6 discharge function the disch pin, which has an internal low-ohmic switch, provides the means to discharge the output v bus quickly. an external resistor in series limits the maximum current and the ic dissipation. to check if the output voltage has dropped to below 0.8 v, a second comparator is implemented. this voltage drop is a requirement of the usb-pd specification (vsafe0v) if there is a hard reset. when the internal disch switch is activated, the voltage at the disch pin is always low, because of the external current limiting resistor. a mechanism has been implemented to check the real output voltage. during a hard reset discharge sequence, when v cc is below vsafe5v, the switch is opened every millisecond for 20 s to check the output voltage at the end of the 20 s period. the check of the output voltage is done until the voltage remains below 0.7 v and the hard reset discharge sequence is terminated. for this check to work properly, the capacitance on the disch pin and the external current limiting resistor must have a time constant that is short enough.
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 11 / 37 to ensure that the output remains low, a 1 ma sink current is present on the disch pin when both the load switch and discharge switch are off. the period that the disch pin is active in unattached state is typically 100 ms by default. the reason for this limitation is to prevent that excessive power dissipation occurs when an external v bus voltage is applied. 8.7 detach detection if the type c cable is disconnected, the output voltage of the TEA19031AT application returns to its default value (5 v) after 200 s. 8.8 internal temperature measurement the internal die temperature is continuously monitored. the temperature readout is used to make an overtemperature protection (see table 4 ). 8.9 external temperature measurement the TEA19031AT includes a dedicated ntc pin. the ntc pin can be used to, e.g., measure the adapter temperature or the cable connector temperature. the temperature value is continuously available to be sent to the portable device using one of the protocols (e.g. via vdms in the usb-pd protocol). for accurate temperature measurement over the complete temperature range, the external ntc is supplied via an adaptive and trimmed internal current source (see figure 5 ).
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 12 / 37 aaa-023850 digital control firmware usb-pd adc mtp disable otp level cc1 cc2 ntc i 3 = 240 a i 2 = 60 a i 1 = 15 a a. circuit t e m p e r a t u r e -50 0 5 0 i 1 = 15 a i 2 = 60 a i 3 = 240 a 100 150 aaa-022812 1 2 3 v ntc 0 2.5 1.5 0.5 0.4 b. curves figure 5.?external ntc is supplied via adaptive current sources the voltage at the ntc pin is measured via an internal a-to-d converter. if the voltage on the ntc pin drops to below 400 mv, the source current of the pin is increased. if the voltage on this pin exceeds 2.4 v, the source current of the pin is decreased. in this way, the temperatures are measured with a better than 5 c accuracy for a range of 0 c to > 120 c when using a typical external resistor. optionally, an otp function can be added to these pins. the otp level can be initialized via the mtp and handled by the hardware, which ensures a proper otp function that is independent of the firmware. depending on the type, the otp is enabled or disabled (see section 15 ).
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 13 / 37 8.10 communication the TEA19031AT hardware supports using the cc wire in a usb type-c cable. the usb type-c connectors and cables support all protocols. if a type c receptacle is used, v bus is only connected to the converter output via the load switch when an attach is detected on one of the cc pins. 8.10.1 usb type-c the TEA19031AT adheres to the usb type-c 1.2 specification (see ref. 2 ) in the sense that the distinct pull-up current values support attach/detach and current capability advertising. the attach/detach detection is done in the hardware. so, if there is a detach, a return of v bus to vsafe5v is always ensured. the hardware implementation of the return of v bus to vsafe5v eliminates the risk of software implementations where v bus may stay at an unsafe level if the program execution stalls. 8.10.2 usb-pd the TEA19031AT supports the usb-pd 2.0 specification (certified: 2017-03-22; test id: 100054). maximum seven different power data objects (pdo) can be defined in non- volatile memory. by default, limited pdos are supported with different current levels (see section 15 ). all pdo currents are protected with an ocp. 8.10.3 discover identification the TEA19031AT supports the discover identification protocol in usb-pd. it is possible to program different vid, pid, and bcd values in dedicated memory addresses with an nxp tool, using vdms. 8.10.4 mtp configuration the TEA19031AT is configurable via mtp. the different types are defined in section 15 .
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 14 / 37 8.11 protections all protections, except uvp and the external otp, are implemented completely in the hardware. table 4 gives an overview of the available protections. 8.11.1 protections overview table 4.?overview of protections protection description implementation default value filter uvlo undervoltage lockout hardware 2.8 v (fixed) - ovp overvoltage protection hardware 120 % or 125 % pdo 30 s ocp overcurrent protection hardware 120 % pdo 25 ms otp (internal) overtemperature protection hardware 115 c - otp external overtemperature protection software 90 c [1] - uvp undervoltage protection software 60 % pdo - osup open-supply (vcc) protection hardware - - ov_cc1_cc2 overvoltage protection cc1 and cc2 pins hardware - 10 s analog [1] the ntc readout and otp levels are defined with an ntc of 47 k? and a b-constant of 4108. it means that the otp triggers with an impedance of about 4 k?. adding an extra resistor of 1.8 k? in series with this ntc increases the otp by 20 c to 110 c. the temperature readout is not accurate anymore. also, an ntc of 100 k? gives the same 20 c offset. it also results in an otp level of approximately 110 c. 8.11.2 secondary side safe restart protection when a safe restart protection is triggered, the load switch is immediately turned off. the voltage loop is regulated to the initial value (5 v typical). as the load switch is immediately turned off before the regulation reduces the output power, the vcc voltage may increase. to ensure that the vcc voltage has dropped to a safe value, before the load switch is turned on again, v cc is discharged via an internal current source of 20 ma if it exceeds the level of v o(default) 1.05. when the protection is triggered, the safe restart timer is started. after 1 s, a restart sequence is performed, which reinitializes all circuits. 8.11.3 undervoltage lockout (uvlo) the level at which the uvlo protection is triggered is fixed. when v cc drops to below the uvlo level, the load switch is immediately turned off. all settings are reset to their initial values. internal circuitries are disabled.
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 15 / 37 8.11.4 overvoltage protection (ovp) when the level is higher than the default voltage (normally 5 v, but can be adjusted via mtp), the ovp level is set as a percentage (120 % or 125 %) of the requested output voltage level. when v cc continuously exceeds this level for longer than the minimum ovp time (default 30 s), the ovp protection is triggered. 8.11.5 overcurrent protection (ocp) the default TEA19031AT setting is cc mode where the current loop defines maximum current. however, for higher output power types (e.g. for computer applications), the ocp mode is set. if the output current is continuously higher than the chosen current level for more than the ocp blanking time, ocp is triggered. 8.11.6 internal otp when the internally measured temperature exceeds the otp setting, otp is triggered. the value is 115 c. 8.11.7 external otp when the externally measured temperature exceeds the programmed otp settings, otp is triggered. section 15 gives the programmed temperatures for the different types. 8.11.8 ntc pin the ntc function can be used to measure external temperature. the temperature can be read via vdms. the ntc readout is only valid with a 47 k? ntc resistor and a b- constant of 4108 or a similar ntc. 8.11.9 open-supply protection (osup) when the supply is not available anymore, the voltage on the opto pin is used to turn off the external nmos load switch actively. the supply ensures the functioning of the TEA19031AT . because of this protection, the load can never be damaged if the supply is not available anymore. 8.11.10 undervoltage protection (uvp) the uvp level is set as a percentage requested output voltage level (60 %). the reaction to a triggering of uvp is programmed in the firmware. the protection is a safe restart protection. the level can never be lower than the uvlo level.
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 16 / 37 8.11.11 output short protection (osp) at a shorted output, the vcc voltage drops to below the uvlo level. the load switch is turned off. after the programmed safe restart time, the output is enabled again. when the vcc voltage exceeds the uvlo level, the primary controller initially limits the maximum output power. because the safe restart time is set to 1 s, the dissipation is limited to < 50 mw. this limitation prevents that the application heats up when the output is shorted. 8.11.12 ovp cc1 and cc2 pins (ov_cc1_cc2) when the cc1 or cc2 pin is shorted to v bus , ovc_cc is triggered. ovc_cc is a safe restart protection. when output voltage is present, this protection is active. when the voltage at the pin exceeds 4.5 v, the protection is triggered. this ovp_cc has some detection filtering. it only switches on after 150 s (typical). 8.11.13 soft-short protection cc pins the cc pins are also protected with a soft-short protection. the impedance levels on the cc lines are checked. if they are not in alignment with the usb-pb protocol, the output is protected.
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 17 / 37 9 limiting values table 5.?limiting values in accordance with the absolute maximum rating system (iec 60134). symbol parameter conditions min max unit voltages v vcc voltage on pin vcc ?0.5 +26 v v opto voltage on pin opto ?0.5 +26 v v cc1 voltage on pin cc1 ?0.5 +26 v v cc2 voltage on pin cc2 ?0.5 +26 v v sw voltage on pin sw ?0.5 v cc + 9 v v disch voltage on pin disch ?0.5 +26 v v vsns voltage on pin vsns ?0.5 +3.6 v v isns voltage on pin isns ?0.5 +3.6 v v ntc voltage on ntc pin ?0.5 +3.6 v general t stg storage temperature ?65 +150 c t j junction temperature ?40 +150 c electrostatic discharge (esd) human body model (hbm) ?2000 +2000 v charged device model (cdm) ?500 +500 v v esd electrostatic discharge voltage machine model (mm) ?200 +200 v
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 18 / 37 10 recommended operating conditions table 6.?recommended operating conditions symbol parameter conditions min max unit voltages v vcc voltage on pin vcc 0 21 v v opto voltage on pin opto 0 21 v v cc1 voltage on pin cc1 0 5 v v cc2 voltage on pin cc2 0 5 v v sw voltage on pin sw 0 v cc + 6 v v disch voltage on pin disch 0 21 v v vsns voltage on pin vsns 0 3.3 v v isns voltage on pin isns 0 3.3 v v ntc voltage on pin ntc 0 3.3 v general t j junction temperature ?25 +125 c 11 thermal characteristics table 7.?thermal characteristics symbol parameter conditions typ unit r th(j-a) thermal resistance from junction to ambient jedec test board 115 k/w r th(j-c) thermal resistance from junction to case jedec test board 44 k/w
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 19 / 37 12 characteristics table 8.?characteristics t amb = 25 c; v cc = 5.0 v; all voltages are measured with respect to gnd; currents are positive when flowing into the ic; unless otherwise specified. symbol parameter conditions min typ max unit supply (vcc pin) v th(uvlo) undervoltage lockout threshold falling - - 2.9 v unattached; v cc = 5 v - 1.8 - ma i cc current on vcc pin nominal; v cc = 5 v - 4.25 - ma discharge current of vcc during safe restart protection; depends on load conditions - 20 - ma i cc(dch) discharge supply current extra discharge current; v cc = v o(default) - 20 - ma v os overshoot voltage - 1.05 v o(default) - v cc1/cc2 section (cc1 and cc2 pins) type c current source for dfp pull-up indication default current ?64 ?80 ?96 a 1.5 a mode ?166 ?180 ?194 a i pu pull-up current 3 a mode ?304 ?330 ?356 a with standard 5.1 k pull-down resistance default current 1.5 1.6 1.7 v 1.5 a mode 1.5 1.6 1.7 v v ih high-level input voltage 3 a mode 2.45 2.60 2.75 v with standard 5.1 k pull-down resistance default current 0.15 0.2 0.25 v 1.5 a mode 0.35 0.40 0.45 v v il low-level input voltage 3 a mode 0.75 0.80 0.85 v v ovp overvoltage protection voltage cc1 and cc2 pins - 4.5 - v usb-pd normative specification f bit bit rate bmc bit rate 270 300 330 kbps usb-pd transmitter normative specification t fall fall time 10 % and 90 % amplitude points; minimum is underloaded condition 300 - 650 ns
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 20 / 37 symbol parameter conditions min typ max unit t rise rise time 10 % and 90 % amplitude points; minimum is underloaded condition 300 - 650 ns v o output voltage signal voltage swing 1.05 1.125 1.2 v z o output impedance transmitter [1] - 45 - usb-pd receiver normative specification c in input capacitance receiver - 250 - pf t fltr(lim) time constant limiting filter receiver bandwidth 100 - - ns z i input impedance receiver 10 - - m receiver comparator low level - 0.55 - v high level - 0.8 - v v i input voltage hysteresis - 250 - mv voltage control (vsns pin) v ref reference voltage input voltage range on the vsns pin to control the voltage loop 0.3 - 2.4 v voltage loop; v snsref = 2 v ?2 - +2 % v acc voltage accuracy measurement voltage accuracy ?2 - +2 % g m transconductance vcc in; opto out 4 - - ma/mv g (max) maximum gain cable compensation at maximum - 8 - mv/mv current control (isns pin) i ref reference current parameter is programmed in mtp 10 bits 6 - 40 mv current loop accuracy; r sense = 5 m 0.5 a < i out < 5 a [2] ?100 - +100 ma i out = 5 a ?2 - +2 % measurement current accuracy; r sense = 5 m i out < 5 a ?100 - +100 ma i out output current i out > 5 a ?3 - +3 % g m transconductance gain current; amplifier = 50 200 - ma/mv
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 21 / 37 symbol parameter conditions min typ max unit ntc pin i o(ntc) output current on pin ntc high temperatures [3] ?228 ?240 ?252 a t acc temperature accuracy ntc temperature ?5 - +5 c t res temperature resolution temperature measurement ?1 - +1 c protections v ovp overvoltage protection voltage overvoltage is programmed in mtp. 3 - 25 v v ovp(acc) overvoltage protection voltage accuracy v ovp = 6 v ?3 - +3 % v ocp(acc) overcurrent protection voltage accuracy voltage at isense input pin ?3 - +3 % v uvp(acc) undervoltage protection voltage accuracy ?3 - +3 % i cc(dch) discharge supply current during safe restart protection - 20 - ma sw driver switch-on - 80 - k r o output resistance switch-off - 600 - disch part (disch pin) v det(rst) reset detection voltage hard reset 0.65 0.70 0.75 v r dch discharge resistance - 3 - t act active time maximum on-time during attach state - 100 - ms opto pin i o(min) minimum output current - 30 - a i o(max) maximum output current 3.75 5 6.25 ma internal oscillator f osc(int) internal oscillator frequency - 10 - mhz internal temperature protection t otp overtemperature protection trip switch-on 105 115 125 c [1] in the application, an additional resistor can be added to fulfill the usp-pd specification [2] the current sense pin can be used accurately from 6 mv up to 40 mv. the result is a current range that depends on the r sense resistor. (e.g. with 10 m, the range is between 600 ma and 4 a). if the input voltage is below 3 mv, the readout current reports a fixed current of 50 ma. [3] see figure 5 .
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 22 / 37 13 application information a a a - 0 1 8 9 7 5 t e a 1 9 3 x hvsrc d r i v e r s 1 isense aux vcch vccl ctrl gnd prot ect hvga t e tea 1 9 0 3 1 t g n d r 1 r 5 r 2 r 3 r 4 c 1 r 6 r 7 c 2 vcc vsns o p t o isns s w disch cc1 cc2 ntc opt ional tea 1 9 9 x drain cap x v g n d s o u r c e g a t e figure 6.?typical application diagram, including tea193x tea199x (low-side sr), and TEA19031AT 13.1 resistor divider the resistor divider (r3 / (r2 + r3) connected from the vcc pin to the vsns pin must reduce the output voltage to < 2.5 v for the maximum output voltage. for 20 v applications, a divider ratio of 1/8.325 is chosen. for applications with a maximum output voltage that does not exceed 12 v, a ratio of 1/5.476 gives the best performance. the reference of the ground of this resistor divider must be connected as close as possible to the gnd pin of the TEA19031AT . high-load currents in this ground connection must be prevented. 13.2 sense resistor the accuracy of the sense resistor r1 is very important. any deviation from the value in mtp gives an offset in the current measurement. because the sense resistor is very low- ohmic, the layout of the connections in the pcb can give major deviations from its initial value.
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 23 / 37 to overcome this, several options are available: ? change the mtp-resistor value so that it is in line with the typical resistor value of the sense resistor including the pcb tracks. ? change the sense resistor value so that the complete value is matching the typical mtp value (10 m?). ? choose the sense resistor value slightly higher (e.g. +15 % than the default mtp value. trim the value with a resistor divider so that the (r7 / (r5 + r7)) (r1 + r pcb ) matches the mtp default value. r pcb is the resistance of copper wires and the resistance change of the sense resistor due to its soldering profile. to prevent temperature changes in the current sense measurements, the sense resistor must have a zero temperature coefficient. also, to ensure accuracy and temperature stability, keep the pcb resistance as low as possible. to prevent magnetic coupling to these parts, which results in pollution in output currents, the length and the area of the connection must be kept as small as possible. 13.3 voltage loop an integrator network is connected between the vsns pin and the optocoupler in the application diagram. the recommended values of these components are: ? r2 = 160 k? to 180 k? ? r4 = 1 k? ? c1 = 10 nf; for the integral part to prevent magnetic coupling to these parts, which results in pollution in output voltage, the length and the area of the connection must be kept as small as possible. 13.4 current loop for applications that use the cc loop, an integrator network is connected between the isns pin and the optocoupler in an application. the recommended values of these components are: ? r5 = 330 ? when r sense = 10 m?; r5 = 160 ? when r sense = 5 m? ? r6 = 5 k? ? c2 = 100 nf; for the integral part to prevent magnetic coupling to these parts, which results in pollution in output currents, the length and the area of the connection must be kept as small as possible. for applications that only use the ocp mode, these three components can be omitted.
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 24 / 37 14 package outline references outline version european projection issue date iec jedec jeita sot1437-1 sot1437-1_po 15-02-09 15-03-06 dimensions note 1. plastic or metal protrusions of 0.25 mm maximum per side are not included. so10: plastic small outline package; 10 leads; body width 3.9 mm; body thickness 1.35 mm sot1437-1 unit m m max nom min 1.75 0.25 0.49 0.25 6.3 1.27 6.00 0.70 0.70 a a 1 a 2 1.45 a 3 b p c d (1) 8 e (1) 3.9 e h e l 1.05 l p q 6.20 1.00 4.0 v w 0.18 0.25 0.43 0.22 6.2 0.1 0.56 1.35 0.25 0.25 y z 0.10 0.36 0.19 6.1 0.30 1.25 5.80 0.65 0.70 0.60 0.40 3.8 0 4 pin 1 index z 6 5 1 0 b p (10x) (8x) w e d e a x 0 scale 5 mm y h e v a a a 3 q detail x a 1 a 2 l p l 1 c figure 7.?package outline sot108-1 (so10)
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 25 / 37 15 appendix: internal parameters setting per type in this section, the internal parameter settings per type are given. 15.1 tea19031aet table 9 gives an overview of the function settings in the tea19031aet . table 9.?internal parameter settings function tea19031aet power rating 45 w default output voltage 5 v default maximum output current 3 a ntc function [1] ntc ovp level 120 % ntc-ovp protection level [1] - external sense resistor 10 m? external resistor divider vcc/vsns 8.325 cable compensation 67 mv/a pdo1 voltage 5 v current 3 a pdo2 voltage 9 v current 3 a pdo3 voltage 12 v current 3 a pdo4 voltage 15 v current 3 a pdo5 voltage 20 v current 2.26 a pdo6 voltage off current off
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 26 / 37 function tea19031aet pdo7 voltage off current off cc mode or ocp mode ocp mode [1] the ntc readout and otp levels are defined with an ntc of 47 k? and a b-constant of 4050. it means that the otp triggers with an impedance of about 4 k?. adding an extra resistor of 1.8 k? in series with this ntc increases the otp by 20 c to 110 c. note that the temperature readout is not accurate anymore. also, an ntc of 100 k? gives the same 20 c offset. it also results in an otp level of approximately 110 c. 15.2 tea19031aft table 10 gives an overview of the function settings in the tea19031aft . table 10.?internal parameter settings function tea19031aft power rating 60 w default output voltage 5 v default maximum output current 3 a ntc function [1] ntc ovp level 120 % ntc-ovp protection level [1] - external sense resistor 10 m? external resistor divider vcc/vsns 8.325 cable compensation 67 mv/a pdo1 voltage 5 v current 3 a pdo2 voltage 9 v current 3 a pdo3 voltage 12 v current 3 a pdo4 voltage 15 v current 3 a pdo5 voltage 20 v current 3 a
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 27 / 37 function tea19031aft pdo6 voltage off current off pdo7 voltage off current off cc mode or ocp mode ocp mode [1] the ntc readout and otp levels are defined with an ntc of 47 k? and a b-constant of 4050. it means that the otp triggers with an impedance of about 4 k?. adding an extra resistor of 1.8 k? in series with this ntc increases the otp by 20 c to 110 c. note that the temperature readout is not accurate anymore. also, an ntc of 100 k? gives the same 20 c offset. it also results in an otp level of approximately 110 c. 15.3 tea19031agt table 11 gives an overview of the function settings in the tea19031agt . table 11.?internal parameter settings function tea19031agt power rating 18 w default output voltage 5 v default maximum output current 3 a ntc function [1] ntc with otp ovp level 120 % ntc-ovp protection level [1] 90 c external sense resistor 5 m? external resistor divider vcc/vsns 5.476 [2] cable compensation 117 mv/a pdo1 voltage 5 v current 3 a pdo2 voltage 6 v current 2.9 a pdo3 voltage 7 v current 2.5 a pdo4 voltage 8 v current 2.2 a
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 28 / 37 function tea19031agt pdo5 voltage 9 v current 2 a pdo6 voltage off current off pdo7 voltage off current off cc mode or ocp mode cc mode [1] the ntc readout and otp levels are defined with an ntc of 47 k? and a b-constant of 4050. it means that the otp triggers with an impedance of about 4 k?. adding an extra resistor of 1.8 k? in series with this ntc increases the otp by 20 c to 110 c. note that the temperature readout is not accurate anymore. also, an ntc of 100 k? gives the same 20 c offset. it also results in an otp level of approximately 110 c. [2] maximum output voltage for 5.476 is 13 v. 15.4 tea19031amt table 12 gives an overview of the function settings in the tea19031amt . table 12.?internal parameter settings function tea19031amt power rating 30 w default output voltage 5 v default maximum output current 3 a ntc pin function [1] disabled ovp level 125 % ntc-ovp protection level [1] - external sense resistor 10 m? external resistor divider vcc/vsns 8.325 cable compensation 67 mv/a pdo1 voltage 5 v current 3 a pdo2 voltage 9 v current 3 a pdo3 voltage 12 v current 2.49 a
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 29 / 37 function tea19031amt pdo4 voltage 15 v current 2 a pdo5 voltage off current off pdo6 voltage off current off pdo7 voltage off current off cc mode or ocp mode cc mode [1] the ntc readout and otp levels are defined with an ntc of 47 k? and a b-constant of 4050. it means that the otp triggers with an impedance of about 4 k?. adding an extra resistor of 1.8 k? in series with this ntc increases the otp by 20 c to 110 c. note that the temperature readout is not accurate anymore. also, an ntc of 100 k? gives the same 20 c offset. it also results in an otp level of approximately 110 c. 15.5 tea19031aot table 13 gives an overview of the function settings in the tea19031aot . table 13.?internal parameter settings function tea19031aot power rating 65 w default output voltage 5 v default maximum output current 3 a ntc pin function [1] disabled ovp level 120 % ntc-ovp protection level [1] - external sense resistor 10 m? external resistor divider vcc/vsns 8.325 cable compensation 67 mv/a pdo1 voltage 5 v current 3 a pdo2 voltage 9 v current 3 a
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 30 / 37 function tea19031aot pdo3 voltage 15 v current 3 a pdo4 voltage 20 v current 3.25 a pdo5 voltage off current off pdo6 voltage off current off pdo7 voltage off current off cc mode or ocp mode ocp mode [1] the ntc readout and otp levels are defined with an ntc of 47 k? and a b-constant of 4050. it means that the otp triggers with an impedance of about 4 k?. adding an extra resistor of 1.8 k? in series with this ntc increases the otp by 20 c to 110 c. note that the temperature readout is not accurate anymore. also, an ntc of 100 k? gives the same 20 c offset. it also results in an otp level of approximately 110 c. 15.6 tea19031aqt table 14 gives an overview of the function settings in the tea19031aqt . table 14.?internal parameter settings function tea19031aqt power rating 27 w default output voltage 5 v default maximum output current 3 a ntc function [1] ntc with otp ovp level 120 % ntc-ovp protection level [1] 90 c external sense resistor 5 m? external resistor divider vcc/vsns 5.476 [2] cable compensation 117 mv/a pdo1 voltage 5 v current 3 a
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 31 / 37 function tea19031aqt pdo2 voltage 6 v current 3 a pdo3 voltage 7 v current 3 a pdo4 voltage 9 v current 3 a pdo5 voltage off current off pdo6 voltage off current off pdo7 voltage off current off cc mode or ocp mode cc mode [1] the ntc readout and otp levels are defined with an ntc of 47 k? and a b-constant of 4050. it means that the otp triggers with an impedance of about 4 k?. adding an extra resistor of 1.8 k? in series with this ntc increases the otp by 20 c to 110 c. note that the temperature readout is not accurate anymore. also, an ntc of 100 k? gives the same 20 c offset. it also results in an otp level of approximately 110 c. [2] maximum output voltage for 5.476 is 13 v.
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 32 / 37 16 abbreviations table 15.?abbreviations acronym description ac alternating current bmc bi-phase manchester coding bom bill of materials cc constant current cv constant voltage dac digital-to-analog converter dc direct current dcm discontinuous conduction mode dfp downstream facing port mtp multi-time programmable nmos negative channel metal-oxide semiconductor ntc negative temperature coefficient ocp overcurrent protection ogp open-ground protection osp output short protection osup open-supply protection otp overtemperature protection ovp overvoltage protection pdo power data object qr quasi-resonant ram random-access memory rom read-only memory scl serial clock line sda serial data line smps switched-mode power supply usb universal serial bus usb-pd usb power delivery uvlo undervoltage lockout uvp undervoltage protection vdm vendor defined message
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 33 / 37 17 glossary table 16.?glossary term description i 2 c inter-ic communication vsafe0v safe operating voltage at "zero volts" (0 v vsafe0v 0.8 v) vsafe5v safe operating voltage at 5 v (4.75 v vsafe5v 5.5 v) 18 references 1 usb power delivery specification rev. 2.0 version 1.3 january 12, 2017 2 usb type-c cable and connector specification revision 1.2 march 25, 2016 and ecns
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 34 / 37 19 revision history table 17.?revision history document id release date data sheet status change notice supersedes TEA19031AT v.2 20171201 product data sheet - TEA19031AT v.1 modifications: ? variants tea19031aqt and tea19031aot have been added. TEA19031AT v.1 20170922 product data sheet - -
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 35 / 37 20 legal information 20.1 data sheet status document status [1] [2] product status [3] definition objective [short] data sheet development this document contains data from the objective specification for product development. preliminary [short] data sheet qualification this document contains data from the preliminary specification. product [short] data sheet production this document contains the product specification. [1] please consult the most recently issued document before initiating or completing a design. [2] the term 'short data sheet' is explained in section "definitions". [3] the product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. the latest product status information is available on the internet at url http://www.nxp.com . 20.2 definitions draft the document is a draft version only. the content is still under internal review and subject to formal approval, which may result in modifications or additions. nxp semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. short data sheet a short data sheet is an extract from a full data sheet with the same product type number(s) and title. a short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. for detailed and full information see the relevant full data sheet, which is available on request via the local nxp semiconductors sales office. in case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. product specification the information and data provided in a product data sheet shall define the specification of the product as agreed between nxp semiconductors and its customer, unless nxp semiconductors and customer have explicitly agreed otherwise in writing. in no event however, shall an agreement be valid in which the nxp semiconductors product is deemed to offer functions and qualities beyond those described in the product data sheet. 20.3 disclaimers limited warranty and liability information in this document is believed to be accurate and reliable. however, nxp semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. nxp semiconductors takes no responsibility for the content in this document if provided by an information source outside of nxp semiconductors. in no event shall nxp semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. notwithstanding any damages that customer might incur for any reason whatsoever, nxp semiconductors aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the terms and conditions of commercial sale of nxp semiconductors. right to make changes nxp semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. this document supersedes and replaces all information supplied prior to the publication hereof. suitability for use nxp semiconductors products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an nxp semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. nxp semiconductors and its suppliers accept no liability for inclusion and/or use of nxp semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customers own risk. applications applications that are described herein for any of these products are for illustrative purposes only. nxp semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. customers are responsible for the design and operation of their applications and products using nxp semiconductors products, and nxp semiconductors accepts no liability for any assistance with applications or customer product design. it is customers sole responsibility to determine whether the nxp semiconductors product is suitable and fit for the customers applications and products planned, as well as for the planned application and use of customers third party customer(s). customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. nxp semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customers applications or products, or the application or use by customers third party customer(s). customer is responsible for doing all necessary testing for the customers applications and products using nxp semiconductors products in order to avoid a default of the applications and the products or of the application or use by customers third party customer(s). nxp does not accept any liability in this respect. limiting values stress above one or more limiting values (as defined in the absolute maximum ratings system of iec 60134) will cause permanent damage to the device. limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the recommended operating conditions section (if present) or the characteristics sections of this document is not warranted. constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. terms and conditions of commercial sale nxp semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, unless otherwise agreed in a valid written individual agreement. in case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. nxp semiconductors hereby expressly objects to applying the customers general terms and conditions with regard to the purchase of nxp semiconductors products by customer. no offer to sell or license nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights.
nxp semiconductors TEA19031AT usb-pd controller for smps TEA19031AT all information provided in this document is subject to legal disclaimers. ? nxp b.v. 2017. all rights reserved. product data sheet rev. 2 1 december 2017 36 / 37 export control this document as well as the item(s) described herein may be subject to export control regulations. export might require a prior authorization from competent authorities. non-automotive qualified products unless this data sheet expressly states that this specific nxp semiconductors product is automotive qualified, the product is not suitable for automotive use. it is neither qualified nor tested in accordance with automotive testing or application requirements. nxp semiconductors accepts no liability for inclusion and/or use of non- automotive qualified products in automotive equipment or applications. in the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without nxp semiconductors warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond nxp semiconductors specifications such use shall be solely at customers own risk, and (c) customer fully indemnifies nxp semiconductors for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond nxp semiconductors standard warranty and nxp semiconductors product specifications. translations a non-english (translated) version of a document is for reference only. the english version shall prevail in case of any discrepancy between the translated and english versions. 20.4 trademarks notice: all referenced brands, product names, service names and trademarks are the property of their respective owners. greenchip is a trademark of nxp b.v.
nxp semiconductors TEA19031AT usb-pd controller for smps please be aware that important notices concerning this document and the product(s) described herein, have been included in section 'legal information'. ? nxp b.v. 2017. all rights reserved. for more information, please visit: http://www.nxp.com for sales office addresses, please send an email to: salesaddresses@nxp.com date of release: 1 december 2017 document identifier: TEA19031AT contents 1 general description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 features and benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.1 general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.2 protocol support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.3 protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3 applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5 marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 7 pinning information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.1 pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 8 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 8.1 start-up and supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 8.2 voltage loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 8.3 current loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 8.4 cable compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 8.5 load switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 8.6 discharge function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 8.7 detach detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8.8 internal temperature measurement . . . . . . . . . . . . . . . . . . 11 8.9 external temperature measurement . . . . . . . . . . . . . . . . 11 8.10 communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8.10.1 usb type-c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8.10.2 usb-pd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8.10.3 discover identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8.10.4 mtp configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8.11 protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 8.11.1 protections overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 8.11.2 secondary side safe restart protection . . . . . . . . . . . . 14 8.11.3 undervoltage lockout (uvlo) . . . . . . . . . . . . . . . . . . . . . . . 14 8.11.4 overvoltage protection (ovp) . . . . . . . . . . . . . . . . . . . . . . . . . 15 8.11.5 overcurrent protection (ocp) . . . . . . . . . . . . . . . . . . . . . . . . . 15 8.11.6 internal otp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 8.11.7 external otp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 8.11.8 ntc pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 8.11.9 open-supply protection (osup) . . . . . . . . . . . . . . . . . . . . 15 8.11.10 undervoltage protection (uvp) . . . . . . . . . . . . . . . . . . . . . . . 15 8.11.11 output short protection (osp) . . . . . . . . . . . . . . . . . . . . . . . . 16 8.11.12 ovp cc1 and cc2 pins (ov_cc1_cc2) . . . . . . . 16 8.11.13 soft-short protection cc pins . . . . . . . . . . . . . . . . . . . . . . . . . . 16 9 limiting values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 10 recommended operating conditions . . . . . . . . . . . . . . 18 11 thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 12 characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 13 application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 13.1 resistor divider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 13.2 sense resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 13.3 voltage loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 13.4 current loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 14 package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 15 appendix: internal parameters setting per type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 15.1 tea19031aet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 15.2 tea19031aft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 15.3 tea19031agt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 15.4 tea19031amt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 15.5 tea19031aot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 15.6 tea19031aqt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 16 abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 17 glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 18 references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 19 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 20 legal information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

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