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1. general description the greenchip ii is the second generation of controller ics intended for green ?yback switched mode power supplies (smps). its high level of integration allows the design of a cost effective power supply with a very low number of external components. the TEA1532BT; tea1532ct can also be used in ?xed frequency, continuous conduction mode (ccm) converter designs for low voltage and high current applications. at low power (standby) levels the system operates in cycle skipping mode which minimizes the switching losses during standby. the special built-in green functions allow the ef?ciency to be optimum at all power levels. this holds for quasi-resonant operation at high power levels, as well as ?xed frequency operation with valley switching at medium power levels. at low power (standby) levels, the system operates in cycle skipping mode with valley detection. the proprietary high voltage bcd800 process makes direct start-up possible from the recti?ed universal mains voltage in an effective and energy ef?cient way. a second low voltage, bipolar cmos (bicmos) ic is used for accurate, high speed protection functions and control. the TEA1532BT; tea1532ct enables highly ef?cient and reliable supplies to be designed easily. 2. features 2.1 distinctive features n universal mains supply operation (70 v to 276 v ac) n high level of integration resulting in a very low external component count n fixed frequency continuous conduction mode (ccm) operation capability n quasi-resonant (qr) discontinuous conduction mode (dcm) operation capability 2.2 green features n valley or zero voltage switching for minimum switching losses in qr operation n cycle skipping mode at very low loads; input power < 300 mw at no-load operation for a typical adapter application n on-chip start-up current source 2.3 protection features n safe restart mode for system fault conditions n zero current switch-on in qr mode TEA1532BT; tea1532ct greenchip ii smps control ic rev. 01 18 january 2007 product data sheet www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 2 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic n undervoltage protection (fold back during overload) n ic overtemperature protection (otp) (latched) n low and adjustable overcurrent protection (ocp) trip level n soft (re)start n mains voltage-dependent operation-enabling level n tea1532ct: general purpose input for latched or safe restart protection and timing, e.g. to be used for overvoltage protection (ovp), output short-circuit protection or system otp n TEA1532BT: general purpose input for latched protection and timing, e.g. to be used for ovp, output short-circuit protection or system otp n brown-out protection 3. applications n adapters and open frame ?yback power supplies. the device can also be used in all applications that demand an ef?cient and cost-effective solution up to 250 w. 4. ordering information table 1. ordering information type number package name description version TEA1532BT so8 plastic small outline package; 8 leads; body width 3.9 mm sot96-1 tea1532ct www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 3 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic 5. block diagram (1) switch s3 is not controlled in the TEA1532BT (?xed as drawn). fig 1. block diagram supply management internal supply uvlo start v mains(oper)(en) v cc 1 2 4 gnd s1 ctrl oscillator dcm and ccm detection logic logic brown-out protection soft start s2 over- temperature protection sq r uvlo q maximum on-time protection power-on reset - 1 valley 80 mv clamp driver start-up current source 0.5 v 6 sense 7 driver coa047 5 dem 8 drain ocp leb blank i startup(soft) d i sc / d t 0.63 v sq r v cc < 4.5 v q - 50 mv TEA1532BT tea1532ct osc_rdy duty_max slope compensation 5.6 v control detect i ch 3 protect 5.6 v i dch 300 w protect detect 3 v 2.5 v s3 (1) dcm and ccm www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 4 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic 6. pinning information 6.1 pinning 6.2 pin description 7. functional description the TEA1532BT; tea1532ct is a controller for a compact ?yback converter with the ic situated on the primary side. an auxiliary winding of the transformer provides demagnetization detection and powers the ic after start-up; see figure 3 . fig 2. pin con?guration: TEA1532BT and tea1532ct (sot96-1) TEA1532BT tea1532ct v cc drain gnd driver protect sense ctrl dem 001aaf068 1 2 3 4 6 5 8 7 table 2. pin description symbol pin description v cc 1 supply voltage gnd 2 ground protect 3 protection and timing input ctrl 4 control input dem 5 input from auxiliary winding for demagnetization timing sense 6 programmable current sense input driver 7 mosfet gate driver output drain 8 drain of the external mos switch, input for start-up current and valley sensing www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 5 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic the TEA1532BT; tea1532ct can operate in multi modes; see figure 4 . in qr mode, the next converter stroke is started only after demagnetization of the transformer current (zero current switching), while the drain voltage has reached the lowest voltage to minimize switching losses (green function). the primary resonant circuit of primary inductance and drain capacitor ensures this quasi-resonant operation. the design can be optimized in such a way that zero voltage switching can extend over most of the universal mains range. fig 3. basic con?guration fig 4. multi mode and ff-ccm operation coa048 1 c vcc c vin v i 2 3 4 8 7 6 5 TEA1532BT tea1532ct cycle skip fixed ff-ccm p (w) coa049 f (khz) 125 qr www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 6 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic to prevent very high frequency operation at lower loads, the quasi-resonant operation changes smoothly in ?xed frequency pulse width modulation (pwm) control. in ?xed frequency continuous conduction mode, which can be activated by grounding pin dem, the internal oscillator determines the start of the next converter stroke. in both operating modes, a cycle skipping mode is activated at very low power (standby) levels. 7.1 start-up, mains enabling operation level and undervoltage lock out refer to figure 9 and figure 10 . initially, the ic is self supplying from the recti?ed mains voltage via pin drain. supply capacitor c vcc (at pin 1) is charged by the internal start-up current source to a level of about 4 v or higher, depending on the drain voltage. once the drain voltage exceeds the v mains(oper)(en) (mains-dependent operation-enabling level), the start-up current source will continue charging capacitor c vcc (switch s1 will be opened); see figure 1 . the ic will activate the power converter as soon as the voltage on pin v cc passes the v startup level. at this moment the ic supply from the high voltage pin is stopped (green function). the ic supply is taken over by the auxiliary winding of the ?yback converter. the moment the voltage on pin v cc drops below v th(uvlo) (undervoltage lock out), the ic stops switching and performs a safe restart from the recti?ed mains voltage. in the safe restart mode the driver output is disabled and pin v cc voltage is recharged via pin drain. 7.2 supply management all (internal) reference voltages are derived from a temperature compensated, on-chip band gap circuit. 7.3 oscillator the ?xed frequency of the oscillator is set by an internal current source and capacitor. 7.4 cycle skipping at very low power levels a cycle skipping mode activates. an internal control voltage (v sense(max) ) lower than 25 mv will inhibit switch-on of the external power mosfet until this voltage increases to a higher value; see figure 5 . 7.5 current control mode current control mode is used for its good line regulation behavior. the primary current is sensed across an external resistor and compared with the internal control voltage. the driver output is latched in the logic, preventing multiple switch-on. the internal control voltage is inversely proportional to the external pin ctrl voltage, with an offset of 1.5 v. this means that a voltage range from 1 v to approximately 1.5 v on pin ctrl will result in an internal control voltage range from 0.5 v to 0 v (a high external control voltage results in a low duty cycle). www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 7 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic 7.6 overcurrent protection (ocp) the primary peak current in the transformer is measured accurately cycle-by-cycle using the external sense resistor r sense . the ocp circuit limits the voltage on pin sense to an internal level equal to 1.5 v - v ctrl (see also section 7.5 ). the ocp detection is suppressed during the leading edge blanking period, t leb , to prevent false triggering caused by the switch-on spikes. 7.7 demagnetization (qr operation) the system will be in discontinuous conduction mode (dcm) (qr operation) when resistor r dem is applied. the oscillator will not start a new primary stroke until the previous secondary stroke has ended. demagnetization features a cycle-by-cycle output short-circuit protection, which immediately reduces the frequency (longer off-time), thereby reducing the power level. demagnetization recognition is suppressed during the ?rst t sup(xfmr_ring) time (typical 1.5 m s). this suppression may be necessary in applications where the transformer has a large leakage inductance and at low output voltages or start-up. 7.8 valley switching refer to figure 6 . a new cycle starts when the power switch is activated. after the on-time (determined by the sense voltage and the internal control voltage), the switch is opened and the secondary stroke starts. after the secondary stroke, the drain voltage shows an oscillation with a frequency of approximately where l p is the primary self inductance of the transformer and c d is the capacitance on the drain node. as soon as the oscillator voltage is high again and the secondary stroke has ended, the circuit waits for the lowest drain voltage before starting a new primary stroke. this method is called valley detection. figure 6 shows the drain voltage, valley signal, secondary stroke signal and the oscillator signal. fig 5. the v sense(max) voltage as a function of v ctrl v ctrl (v) 1 v (typ) 0.52 v 1.5 v (typ) coa016 v sense(max) (v) cycle skip active 25 mv 1 2 p l p c d ------------------------------------------ www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 8 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic in an optimum design, the re?ected secondary voltage on the primary side will force the drain voltage to zero. thus, zero voltage switching is possible, preventing large capacitive switching losses , and allowing high frequency operation, which results in small and cost-effective magnetics. 7.9 continuous conduction mode (ccm) it is also possible to operate the ic in the so-called fixed frequency continuous conduction mode (ff ccm). this mode is activated by connecting pin dem to ground and connecting pin drain to the recti?ed v i voltage; see figure 12 . 7.10 adjustable slope compensation a slope compensation function has been added at pin ctrl; see figure 7 . the slope compensation function prevents sub-harmonic oscillation in ccm at duty cycles over 50 %. the ctrl voltage is modulated by sourcing a (non-constant) current out of pin ctrl and adding a series resistor r slopecomp . this increases the ctrl voltage proportionally with the on-time, which therefore limits the ocp level. thus, a longer on-time results in a higher ctrl voltage. however, this increase in ctrl voltage will actually decrease the on-time. slope compensation can be adjusted by changing the (1) start of new cycle at lowest drain voltage. (2) start of new cycle in a classical pwm system at high drain voltage. fig 6. signals for valley switching p 1 2 -- - cv 2 f = ? ?? drain secondary stroke mgu235 secondary ringing primary stroke valley (2) (1) secondary stroke oscillator www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 9 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic value of r slopecomp . slope compensation prevents modulation of the on-time (duty cycle) while operating in ff ccm. a possible drawback of sub-harmonic oscillation can be output voltage ripple. 7.11 minimum and maximum on-time the minimum on-time of the smps is determined by the leading edge blinking (leb) time (typically 400 ns). the ic limits the on-time to a maximum time, which is dependent on the mode of operation: qr mode: when the system requires an on-time of more than 25 m s, a fault condition is assumed (e.g. c vcc removed). the ic stops switching and enters the safe restart mode. ccm: the driver duty cycle is limited to 70 %. so the maximum on-time is correlated to the oscillator time, which results in an accurate limit of the minimum input voltage of the ?yback converter. 7.12 soft start-up (pin sense) to prevent transformer rattle at start-up or during hiccup, the transformer peak current is slowly increased by the soft start function. this can be achieved by inserting a resistor and a capacitor between pin sense (pin 6) and sense resistor r sense . an internal current source charges the capacitor to v sense =i startup(soft) r ss (about 0.5 v maximum). the start level and the time constant of the increasing primary current level can be adjusted externally by changing the values of r ss and c ss . fig 7. slope compensation 001aaa830 ctrl - 1 slope compensation current 0.63 v control detect 5.6 v 4 r ctrl r sc i dm v sense max ) ( i startup soft ) ( r ss ) ( C r sense --------------------------------------------------------------------------------------- = t r ss c ss = www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 10 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic the charging current i startup(soft) will ?ow as long as the voltage on pin sense is below approximately 0.5 v. if the voltage on pin sense exceeds 0.5 v, the soft start current source will start limiting current i startup(soft) .atv startup , the i startup(soft) current source is completely switched off; see figure 8 . since the soft start current is supplied from pin drain, the r ss value will not affect v cc current during start-up. 7.13 control pin protection if the pin ctrl becomes open-circuit or is disconnected, a fault condition is assumed and the converter will stop switching immediately. operation recommences when the fault condition is removed. 7.14 protect and timing input the protect input (pin 3) is a multi-purpose (high-impedance) input, which can be used to switch off the ic and create a relatively long timing function. as soon as the voltage on this pin rises above 2.5 v, switching stops immediately. for the timing function, a current of typically 50 m a ?ows out of pin protect and charges an external capacitor until the activation level of 2.5 v is reached. this current source is only activated when the converter is not in regulation, which is detected by the voltage on pin ctrl (v ctrl < 0.63 v). a (small) discharge current is also implemented to ensure that the capacitor is not charged, for example, by spikes. a mosfet switch is added to discharge the external capacitor and ensure a de?ned start situation. for the tea1532ct, the voltage on pin ctrl determines whether the ic enters latched protection mode, or safe restart protection mode: ? when the voltage on pin ctrl is below 0.63 v, the ic is assumed to be out of regulation (e.g. the control loop is open). in this case activating pin protect (v protect > 2.5 v) will cause the converter to stop switching. once v cc drops below v th(uvlo) , capacitor c vcc will be recharged and the supply will restart. this cycle will be repeated until the fault condition is removed (safe restart mode). ? when the voltage on pin ctrl is above 0.63 v, the output is assumed to be in regulation. in this case activating pin protect (v protect > 2.5 v), by external means, will activate the latch protection of the ic: the voltage on pin v cc will cycle between v startup and v th(uvlo) , but the ic will not start switching again until the latch fig 8. soft start-up c ss r ss sense r sense i ss v ocp start-up mgu237 6 0.5 v www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 11 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic protection is reset. the latch is reset as soon as v cc drops below 4.5 v (typical value) (this only occurs when the mains has been disconnected). the internal overtemperature protection will also trigger this latch; see also figure 1 . for the TEA1532BT the ic always enters the latched mode protection independent of the voltage on pin ctrl. a voltage higher than 3 v on pin protect will always latch the ic. this is independent of the state or the version of the ic. 7.15 overtemperature protection (otp) the ic provides accurate otp. the ic will stop switching when the junction temperature exceeds the thermal shutdown temperature. when v cc drops to v th(uvlo) , capacitor c vcc will be recharged to the v startup level, however switching will not restart. subsequently, v cc will drop again to v th(uvlo) , etc. operation only recommences when v cc drops below a level of about 4.5 v (typically, when v mains is disconnected for a short period). 7.16 brown-out protection during the so called brown-out test, the input voltage is slowly decreased. since the on-time depends on v i , long on-times at low v i can damage the (external) power device. this is prevented by stopping the converter when the input voltage drops too low. when the voltage on pin dem drops below - 50 mv during the on-time (qr mode), the maximum on-time is set to 25 m s. the maximum on-time will be reached while v i is low. subsequently, the ic stops switching and v cc drops below v th(uvlo) . capacitor c vcc will only be recharged and the supply will restart only when voltage v i is high enough (v mains(oper)(en) , also see section 7.1 ). in addition to this, a v i level at which the converter has to enter a safe restart can be set with a demagnetization resistor. during the primary stroke, the recti?ed mains input voltage is measured by sensing the current drawn from pin dem. this current depends on the mains voltage, according to the following equation: where: (ratio of the number of auxiliary to the number of primary windings) the latter function requires an on-time of at least 2 m s. this on-time ensures that a reliable demagnetization current can be measured. when pin dem is grounded (ccm), the brown-out protection is disabled. in this case the duty cycle is limited to 0.7, so at low mains voltage the on-time is limited and therefore the dissipation in the fet is limited. 7.17 driver the driver circuit to the gate of the power mosfet has a current sourcing capability of typically 170 ma and a current sink capability of typically 700 ma. this permits fast turn-on and turn-off of the power mosfet for ef?cient operation. i dem v aux r dem -------------- - nv mains r dem --------------------------- - ?? n n aux n p ----------- - = www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 12 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic a low driver source current has been chosen to limit the d v/ d t at switch-on. this reduces electromagnetic interference (emi) and also limits the current spikes across r sense . 8. limiting values [1] equivalent to discharging a 100 pf capacitor through a 1.5 k w series resistor. [2] equivalent to discharging a 200 pf capacitor through a 0.75 m h coil and a 10 w resistor. 9. thermal characteristics table 3. limiting values in accordance with the absolute maximum rating system (iec 60134). symbol parameter conditions min max unit voltages v cc supply voltage continuous - 0.4 +20 v v protect voltage on pin protect continuous - 0.4 +5 v v ctrl voltage on pin ctrl - 0.4 +5 v v dem voltage on pin dem current limited - - v v sense voltage on pin sense current limited - 0.4 - v v drain voltage on pin drain - 0.4 +650 v currents i ctrl current on pin ctrl d < 10 % - 50 ma i dem current on pin dem - 1000 +250 m a i sense current on pin sense - 1 +10 ma i driver current on pin driver d < 10 % - 0.8 +2 a i drain current on pin drain - 5 ma general p tot total power dissipation t amb <70 c - 0.5 w t stg storage temperature - 55 +150 c t j junction temperature - 20 +145 c esd v esd electrostatic discharge voltage class 1 human body model pins 1 to 7 [1] - 2000 v pin 8 (drain) [1] - 1500 v machine model [2] - 200 v table 4. thermal characteristics symbol parameter conditions typ unit r th(j-a) thermal resistance from junction to ambient in free air 150 k/w www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 13 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic 10. characteristics table 5. characteristics symbol parameter conditions min typ max unit start-up current source (pin drain) i drain current on pin drain v drain > 100 v v cc = 0 v 1.0 1.2 1.4 ma with auxiliary supply - 100 300 m a v br breakdown voltage 650 - - v v mains(oper)(en) mains-dependent operation-enabling voltage 60 - 100 v supply voltage management (pin v cc ) v startup start-up voltage 10.3 11 11.7 v v th(uvlo) undervoltage lockout threshold voltage 8.1 8.7 9.3 v v hys hysteresis voltage v startup - v th(uvlo) 2.0 2.3 2.6 v i ch(high) high charging current v drain > 100 v; v cc <3v - 1.2 - 1 - 0.8 ma i ch(low) low charging current v drain > 100 v; 3v 100 v; v th(uvlo) TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 14 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic duty cycle control (pin ctrl) v min( d max) minimum voltage (maximum duty cycle) - 1.0 - v v max( d min) maximum voltage (minimum duty cycle) - 1.5 - v d i sc / d t slope compensation current - 1.2 - 1 - 0.8 m a/ m s v ctrl(detect) detection voltage on pin ctrl 0.56 0.63 0.70 v protection and timing input (pin protect) v trip trip voltage [1] 2.37 2.5 2.63 v v trip(latch) latch trip voltage 2.85 3 3.15 v v vcc(latch)(reset) latch reset voltage on pin vcc v protect < 2.3 v - 4.5 - v i ch charge current v ctrl < 0.63 v - 57 - 50 - 43 m a i dch discharge current - 100 - na valley switch (pin drain) ( d v/ d t) vrec valley recognition voltage change with time - 43 - +43 v/ m s t d(vrec-swon) valley recognition to switch-on delay time [2] - 150 - ns overcurrent and winding short-circuit protection (pin sense) v sense(max) maximum sense voltage d v/ d t = 0.1 v/ m s 0.48 0.52 0.56 v t pd propagation delay d v/ d t = 0.5 v/ m s - 140 185 ns t leb leading edge blanking time 330 400 470 ns i startup(soft) soft startup current v sense <0.5v 456075 m a brown-out protection (pin dem) i prot(bo) brownout protection current a constant i prot(bo) is drawn from pin dem. [3] - 68 - 60 - 52 m a t en(prot)bo brownout protection enable time 1.5 2 2.5 m s table 5. characteristics continued symbol parameter conditions min typ max unit www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 15 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic [1] tea1532ct: safe restart; TEA1532BT: latch. [2] guaranteed by design. [3] v i detection level. set by the demagnetization resistor r dem ; see section 7.16 . 11. application information a converter with the TEA1532BT; tea1532ct consists of an input ?lter, a transformer with a third winding (auxiliary), and an output stage with a feedback circuit. capacitor c vcc buffers the ic supply voltage, which is powered via the internal current source, that is connected to the recti?ed mains during start-up and, via the auxiliary winding, during operation. a sense resistor r sense converts the primary current into a voltage at pin sense. the value of r sense de?nes the maximum primary peak current. figure 9 shows a ?yback con?guration using the discontinuous conduction mode. pin protect is used in this example for external overvoltage protection and open loop or output short-circuit protection. if this pin is not used, it must be tied to ground. figure 12 shows a ?yback con?guration using the continuous conduction mode. the pin protect is used in this example for external overtemperature protection and open loop or output short-circuit protection. driver (pin driver) i source source current v cc = 9.5 v; v driver =2v - - 170 - 88 ma i sink sink current v cc = 9.5 v v driver = 2 v - 300 - ma v driver = 9.5 v 400 700 - ma v o(max) maximum output voltage v cc > 12 v - 11.5 12 v temperature protection t pl(max) maximum protection level temperature 130 140 150 c t pl(hys) protection level hysteresis temperature v cc >2v - 8 - c table 5. characteristics continued symbol parameter conditions min typ max unit www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 16 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic fig 9. flyback con?guration using the discontinuous conduction mode 1 2 3 4 v cc v mains v i r ctrl r dem r sense gnd protect ctrl drain power mosfet sense dem 8 7 6 5 driver r ss c ss coa050 TEA1532BT tea1532ct www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 17 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic (1) in ccm, the brown-out protection is implemented by the maximum duty cycle in combination with pin protect. fig 10. typical waveforms 1 001aaf069 v driver v protect start-up sequence normal operation ovp tea1532ct normal operation output short-circuit tea1532ct brown-out (1) v cc v startup v o drain of power mosfet v i v i v th(uvlo) 2.5 v www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 18 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic (1) when v protect is forced above 3 v, the protection is always latched. so the ic is not started at v startup unless the v cc voltage drops below the v vcc(latch)(reset) level. this is the same action used for external otp compensation described in section 7.15 . (2) external otp for TEA1532BT and tea1532ct; ovp and output short circuit for TEA1532BT. fig 11. typical waveforms 2 001aaa841 v driver v protect (1) start-up sequence normal operation v cc v startup v o v drain v i v i v th(uvlo) 2.5 v protection active (2) www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 19 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic 12. test information 12.1 quality information the general quality speci?cation for integrated circuits, snw-fq-611 is applicable. (1) the pin protect is used in this example for external otp and open loop or output short-circuit protection. slope compensation is determined by the value of r slopecomp . fig 12. flyback con?guration using the continuous conduction mode TEA1532BT tea1532ct 1 2 3 4 v cc v mains v i r ctrl r sense gnd protect (1) ctrl drain power mosfet sense dem 8 7 6 5 driver r ss c ss coa051 r slopecomp www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 20 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic 13. package outline fig 13. package outline sot96-1 (so8) unit a max. a 1 a 2 a 3 b p cd (1) e (2) (1) eh e ll p qz y w v q references outline version european projection issue date iec jedec jeita mm inches 1.75 0.25 0.10 1.45 1.25 0.25 0.49 0.36 0.25 0.19 5.0 4.8 4.0 3.8 1.27 6.2 5.8 1.05 0.7 0.6 0.7 0.3 8 0 o o 0.25 0.1 0.25 dimensions (inch dimensions are derived from the original mm dimensions) notes 1. plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. 2. plastic or metal protrusions of 0.25 mm (0.01 inch) maximum per side are not included. 1.0 0.4 sot96-1 x w m q a a 1 a 2 b p d h e l p q detail x e z e c l v m a (a ) 3 a 4 5 pin 1 index 1 8 y 076e03 ms-012 0.069 0.010 0.004 0.057 0.049 0.01 0.019 0.014 0.0100 0.0075 0.20 0.19 0.16 0.15 0.05 0.244 0.228 0.028 0.024 0.028 0.012 0.01 0.01 0.041 0.004 0.039 0.016 0 2.5 5 mm scale so8: plastic small outline package; 8 leads; body width 3.9 mm sot96-1 99-12-27 03-02-18 www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 21 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic 14. revision history table 6. revision history document id release date data sheet status change notice supersedes TEA1532BT_tea1532ct_1 20070118 product data sheet - - www.datasheet.co.kr datasheet pdf - http://www..net/
TEA1532BT_tea1532ct_1 ? nxp b.v. 2007. all rights reserved. product data sheet rev. 01 18 january 2007 22 of 23 nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic 15. legal information 15.1 data sheet status [1] please consult the most recently issued document before initiating or completing a design. [2] the term short data sheet is explained in section de?nitions. [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 dev ices. the latest product status information is available on the internet at url http://www .nxp .com . 15.2 de?nitions draft the document is a draft version only. the content is still under internal review and subject to formal approval, which may result in modi?cations 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 of?ce. in case of any inconsistency or con?ict with the short data sheet, the full data sheet shall prevail. 15.3 disclaimers general 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. right to make changes nxp semiconductors reserves the right to make changes to information published in this document, including without limitation speci?cations 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 medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of a nxp semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. nxp semiconductors accepts 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 speci?ed use without further testing or modi?cation. limiting values stress above one or more limiting values (as de?ned in the absolute maximum ratings system of iec 60134) may cause permanent damage to the device. limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the characteristics sections of this document is not implied. exposure to limiting values for extended periods may affect device reliability. terms and conditions of sale nxp semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www .nxp .com/pro? le/ter ms , including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by nxp semiconductors. in case of any inconsistency or con?ict between information in this document and such terms and conditions, the latter will prevail. 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. 15.4 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. 16. contact information for additional information, please visit: http://www .nxp.com for sales of?ce addresses, send an email to: salesad dresses@nxp.com document status [1] [2] product status [3] de?nition objective [short] data sheet development this document contains data from the objective speci?cation for product development. preliminary [short] data sheet quali?cation this document contains data from the preliminary speci?cation. product [short] data sheet production this document contains the product speci?cation. www.datasheet.co.kr datasheet pdf - http://www..net/
nxp semiconductors TEA1532BT; tea1532ct greenchip ii smps control ic ? nxp b.v. 2007. 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: 18 january 2007 document identifier: TEA1532BT_tea1532ct_1 please be aware that important notices concerning this document and the product(s) described herein, have been included in section legal information. 17. contents 1 general description . . . . . . . . . . . . . . . . . . . . . . 1 2 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.1 distinctive features . . . . . . . . . . . . . . . . . . . . . . 1 2.2 green features . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.3 protection features . . . . . . . . . . . . . . . . . . . . . . 1 3 applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 ordering information . . . . . . . . . . . . . . . . . . . . . 2 5 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6 pinning information . . . . . . . . . . . . . . . . . . . . . . 4 6.1 pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 6.2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 7 functional description . . . . . . . . . . . . . . . . . . . 4 7.1 start-up, mains enabling operation level and undervoltage lock out . . . . . . . . . . . . . . . . . . . . 6 7.2 supply management. . . . . . . . . . . . . . . . . . . . . 6 7.3 oscillator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 7.4 cycle skipping. . . . . . . . . . . . . . . . . . . . . . . . . . 6 7.5 current control mode . . . . . . . . . . . . . . . . . . . . 6 7.6 overcurrent protection (ocp) . . . . . . . . . . . . . 7 7.7 demagnetization (qr operation) . . . . . . . . . . . 7 7.8 valley switching. . . . . . . . . . . . . . . . . . . . . . . . . 7 7.9 continuous conduction mode (ccm). . . . . . . . 8 7.10 adjustable slope compensation . . . . . . . . . . . . 8 7.11 minimum and maximum on-time. . . . . . . . . . . . 9 7.12 soft start-up (pin sense). . . . . . . . . . . . . . . . . 9 7.13 control pin protection . . . . . . . . . . . . . . . . . . . 10 7.14 protect and timing input . . . . . . . . . . . . . . 10 7.15 overtemperature protection (otp) . . . . . . . . 11 7.16 brown-out protection. . . . . . . . . . . . . . . . . . . . 11 7.17 driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8 limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 12 9 thermal characteristics. . . . . . . . . . . . . . . . . . 12 10 characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 13 11 application information. . . . . . . . . . . . . . . . . . 15 12 test information . . . . . . . . . . . . . . . . . . . . . . . . 19 12.1 quality information . . . . . . . . . . . . . . . . . . . . . 19 13 package outline . . . . . . . . . . . . . . . . . . . . . . . . 20 14 revision history . . . . . . . . . . . . . . . . . . . . . . . . 21 15 legal information. . . . . . . . . . . . . . . . . . . . . . . 22 15.1 data sheet status . . . . . . . . . . . . . . . . . . . . . . 22 15.2 de?nitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 15.3 disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 15.4 trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 16 contact information. . . . . . . . . . . . . . . . . . . . . 22 17 contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 www.datasheet.co.kr datasheet pdf - http://www..net/

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