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this is information on a product in full production. august 2014 docid024660 rev 6 1/37 stcc5011, stcc5021 usb charging controller with inte grated power switch and attach detector datasheet - production data features ? compliant with usb char ging specifications bc1.2, usb 2.0 and usb 3.0 standards ? compliant with chinese telecommunications industry standard yd/t 1591-2009 ? compatible with proprietary charging mode (apple ? 1 a / 2 a, blackberry ? , korean tablets) ? wide bandwidth, low-loss usb 2.0 data switch ? integrated v bus power switch with low r on of 65 m ? constant current mode overcurrent protection ? soft-start to limit inrush current ? adjustable current limit up to 2.8 a ? short-circuit, thermal and undervoltage protection ? reverse voltage and reverse current protection ? deglitched fault reporting output ? supports remote wakeup in s3 ? charging indication output in dcp and cdp modes ? 3-hour safety counter for charging in s5 ? device attachment detection in g3 state ? available in vfqfpn 16l 3 x 3 x 0.8 mm package with exposed pad ? temperature range: -40 up to 85 c ? ul and cb recognized components (ul file number: e354278) applications ? usb ports/hubs ? personal computers, all-in-one pcs ? monitors ? notebooks, ultrabooks ? tablet pcs ? universal wall charging adapters description the stcc5011/stcc5021 device integrates, in one package, a usb charger controller, a wide bandwidth data switch and a high current power switch. the device emulates several profiles compatible with the usb battery charging standard bc1.2, chinese telecommunications standard yd/t 1591-2009 and proprietary charger modes. the device can detect peripheral device attachment when the host is in s4/s5 deep sleep/off states or in g3 shutdown state. it asserts the charging / attach output after the attach event, allowing the host to turn on the high power dc-dc converter and start charging. this device also asserts the charging / attach output in dcp modes if the charging current is above the threshold. in cdp mode, it asserts the charging / attach output after the cdp negotiation if the chargi ng current is above the threshold. after the current drops below the threshold, the output is deasserted. this allows the host to turn off the high power dc-dc converter and reduce overall consumption in s4/s5 or in g3 states which is critical when t he host is battery-supplied. these two features permit the host system to reduce consumption while no device is attached or when there is no charging. vfqfpn 16l - 3 x 3 x 0.8 mm www.st.com
contents stcc5011, stcc5021 2/37 docid024660 rev 6 contents 1 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 absolute maximum ratings and operating c onditions . . . . . . . . . . . . . 6 4 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5.1 supported modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.2 remote wakeup in s3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5.3 v bus discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5.4 state machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.5 attach detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5.6 charging detection and safety timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5.7 power switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 5.8 en functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 5.9 input and output capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 6 typical operating characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 7 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 8 ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 9 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 docid024660 rev 6 3/37 stcc5011, stcc5021 functional description 37 1 functional description the stcc5011 and stcc5021 devices integrate, in one package, a complete solution to charge portable devices through usb ports. functions include: ? charger emulator compatible with usb ba ttery charging bc1.2 standard, chinese telecommunications standard yd/t 1591-2009 and proprietary chargers such as apple ? divider mode, blackberry ? and korean tablet charging mode. ? the apple divider mode comes in 2 profiles: ? 1 a max. current drawn: for apple ipod ? , iphone ? (stcc5011) ? 2 a max. current drawn: for apple ipad ? , supporting also apple ipod and iphone (stcc5021) ? 3 control pins, ctl1, ctl2, ctl3 allowing th e host to select the emulation profile. these pins may be controlled directly from the host usb controller or from the embedded controller. ? usb data switch with wide bandwidth up to 1100 mhz compliant with usb 2.0 standard. this wide bandwidth switch features low capacitance and low r on resistance, allowing signals to pass with minimum edge and phase distortion. ? n-channel power switch with low r on resistance of 65 m typ., high current limiter accuracy and high current out put capability, 2.5 a typ. the current limit threshold can be adjusted with a good accuracy by an exte rnal resistor in the range 500 ma to 2.8 a. constant current mode protection is used to protect the device and the host system against overcurrent or short-circuit. othe r protection includes reverse current and reverse voltage protection, undervoltage lockout and thermal shutdown. ? a deglitched output (fault ) reporting the failure events of overcurrent, thermal shutdown and reverse current (backdrive) to v in . ? charging current sensing circuit. the output charging /attach is asserted if charging current is above 20 ma in cdp and dcp modes. in cdp mode the charging flag is assert ed only if the cdp handshaking between the portable device and the host is performed before the current is above the threshold. moreover, in s4/s5 power states and battery supplied, there is an additional safety timer to stop the charging process when the ?e nd of charge? timeout is reached. this timer is started only after a device attachm ent event and can be disabled by toggling the pin attach_en to low if the timer is not wanted. if the timeout or current is belo w the threshold, the signal charging /attach is deasserted: in both cases, the host system can disable the high power dc-dc converter and therefore reduce power consum ption. this is crucial when the host is battery supplied. ? attach detector circuit to monitor device attachment. this circuit is enabled by driving the atta ch_en pin high and en low. when a device attachment is detected, the output charging /attach is asserted for a t attach period (25 s typ.). the attach de tection block is supplied by the v dd power supply pin. ? an enable input (en) to enable/disable the device, except the attach detection switch which is also managed by the attach_en input. the device is offered in a small, rohs-com pliant vfqfpn 16l (3 x 3 x 0.8 mm) package with an exposed pad for effective cooling. functional description stcc5011, stcc5021 4/37 docid024660 rev 6 figure 1. block diagram figure 2. pinout docid024660 rev 6 5/37 stcc5011, stcc5021 pin description 37 2 pin description table 1. pin description pin no. name type description 1 in pwr device and usb port power supply input 2, 3 dm_out, dp_out i/o usb 2.0 data connection to system usb transmitter (dm = d-, dp = d+) 4 attach_en i logic level control input to turn on/off the attach detector (see ta ble 6 ). it can also disable (logic low) the 3-hour timer if started. 5en i logic level control input. when en is low, power switch, data switch and emulator are off. 6, 7, 8 ctl1, ctl2, ctl3 i logic level control inputs to select charger mode (see table 5 ). 9 charging /attach o active low open drain output, asserted when device attachment or charging current is detected. 10, 11 dp_in, dm_in i/o usb 2.0 data connection to system usb connector (dm = d-, dp = d+) 12 out pwr usb port power supply output (v bus ) 13 fault o active low open drain output, asserted when overcurrent, overtemperature or reverse voltage are detected. 14 gnd - ground 15 v dd pwr attach detector power supply. v dd must always be supplied before v in . 16 i lim i current limit threshold programming resistor terminal absolute maximum ratings and oper ating conditions stcc5011, stcc5021 6/37 docid024660 rev 6 3 absolute maximum ratings and operating conditions stressing the device beyond the rating listed in table 2: absolute maximum ratings (amr) may cause permanent damage to the device. these are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated in table 3: operating conditions is not implied. exposure to abso lute maximum rating conditions for extended periods may affe ct device reliability. table 2. absolute maximum ratings (amr) symbol parameter value unit v in , v dd , v out supply voltage -0.3 to 6.5 v v en , v attach_en , v ctlx logical input voltage v fault , v charging /attach pull-up resistor voltage (fault , charging /attach ) v dp_out , v dm_out , v dp_in , v dm_in data switch pin voltage to ground -0.3 to v in +0.3 v i dp_out , i dm_out , i dp_in , i dm_in data switch current , switch on 50 ma i o(out) maximum power switch output current, power switch on internally limited a i o(fault ) , i o(charging /attach ) logical output sink current 25 ma t stg storage temperature (v in off, v dd off) -55 to +150 c t sld lead solder temperature fo r 10 second temperature (v in off, v dd off) (1) 260 r thja thermal resistance junction-to-ambient vfqfpn 16l (2) 60 c/w t j maximum junction temperature ran ge (internally limited) -40 to t stop c v esd(out, dp_in, dm_in) iec61000-4-2 contact discharge (out, dp_in, dm_in pins) (3) 8 kv v esd jedec human body model (all pins) 2 jedec machine model (all pins) 200 v 1. reflow at temperatures of 255 c to 260 c for time < 30 seconds (total thermal budget not to exceed 180 c for a period from 90 to 150 seconds). 2. r th are typical values, given when mounted on a 4-layer pcb with vias. 3. measured in a recommended application circuit with a 1 f ceramic capacitor + 150 f low esr electrolytic capacitor connected between out and gnd pins (see figure 4 ). table 3. operating conditions symbol parameter value unit v in supply voltage 4.5 to 5.5 v v dd supply voltage 1.7 to 5.5 t a ambient operating temperature -40 to +85 c t j junction operating temperature -40 to +125 docid024660 rev 6 7/37 stcc5011, stcc5021 electrical characteristics 37 4 electrical characteristics table 4. electrical characteristics v in = 4.5 v to 5.5 v, v dd = 1.7 v to 5.5 v, -40 c < t j < 125 c (unless otherwise specified) symbol parameter conditions min. typ. max. unit current consumption (v in domain) i in(active) supply current in active state (en = 1) mode cdp (111) 110 160 a mode sdp (110 - 010) 100 150 mode dcp auto-detect (001) ? divider mode ?bc1.2 260 110 290 180 mode dcp bc1.2 (100) 110 180 mode dcp divider (101) 210 290 i in(disabled) supply current in disable state (en = 0) ctlx <> 000, out floating 0.1 5 a ctlx = 000 or out grounded, t j = 25 c 0.2 5 t j = 125 c 60 power switch - dc parameters r on static on-resistance t j = 25 c 65 m -40 c < t j < 125 c 95 i reverse reverse leakage current in disabled state (absolute value) v out = 5.5 v, v in = 0, t j = 25 c, v en = 0, measured at in 15 a t j = 125 c, other conditions the same as above 70 v reverse reverse voltage protection threshold (v out - v in ) v uvlo < v in < v out , en = 1, power switch on -> off 60 mv i os current limiter threshold r ilim = 96 k 340 500 625 ma r ilim = 33 k 1290 1450 1595 r ilim = 19.6 k 2255 2450 2645 r ilim = 17.2 k 2800 t stop emergency off temperature 140 150 160 c t hyst thermal shutdown hysteresis 20 r en en input pull-down resistor 250 k v en enable input turn-on, turn-off threshold voltage 0.4 1.6 v v hyst(en) enable input turn-on, turn-off voltage hysteresis 500 mv v ol(fault ) fault output low voltage i fault = 1 ma 180 electrical characterist ics stcc5011, stcc5021 8/37 docid024660 rev 6 i ol(fault ) fault output leakage current v in = 5.5 v, v dd = 5.5 v, v fault = 5 v 1a t fault fault output deglitch delay fault assertion / deassertion delay in overcurrent condition 7912ms v uvlo undervoltage lockout v in rising 3.9 4.1 4.3 v v hyst(uvlo) undervoltage lockout hysteresis t j = 25 c 100 mv power switch - ac parameters (1) t on turn-on, en to out delay c load = 1 f, r load = 100 0.8 ms t off turn-off, en to out delay 0.3 t r out (v bus ) rise time c load = 1 f, r load = 100 0.4 t f out (v bus ) fall time c load = 1 f, r load = 100 0.2 t ios current limiter response time to short-circuit v in = 5.5 v 3.5 s output discharge r discharge discharge resistor attach_en = en = 0 140 200 300 attach detector v dd supply voltage 1.7 5.5 v i dd(active) supply current in active state v dd = 1.7 v to 5.5 v, v en = 0, v attach_en = v dd , t j = 25 c 15 30 a i dd(disabled) supply current in disabled state v dd = 1.7 to 5.5 v, v en = 0, v attach_en = 0 0.1 3 i att_reverse detector switch reverse current (v out to v dd ) (absolute value) v dd = 0, v out = 5.5 v, in floating, measured at v dd 0.1 3 r on_att static on-resistance v dd to v out t j = 25 c 100 v attach_en enable input turn-on, turn-off threshold voltage 0.4 1.6 v v hyst(attach_en) enable input threshold hysteresis 500 mv i attach_en attach_en input leakage current v dd = 5.5 v, v in = 5.5 v, v attach_en = 0 v or 5 v -1 1 a v ol(charging /attach ) charging /attach output low voltage device attachment detected, i charging /attach = 1 ma 180 mv i ol(charging /attach ) charging /attach output leakage current v in = 5.5 v, v dd = 5.5 v, v charging/attach = 5 v 1a table 4. electrical characteristics v in = 4.5 v to 5.5 v, v dd = 1.7 v to 5.5 v, -40 c < t j < 125 c (unless otherwise specified) (continued) symbol parameter condi tions min. typ. max. unit docid024660 rev 6 9/37 stcc5011, stcc5021 electrical characteristics 37 t attach charging /attach assertion time after attach detected 25 s high-speed data switch - dc parameters r on data switch on-resistance switch closed, v in = 5 v, i s = 8 ma, test voltage on dp_out, dm_out = 0.4 v 2.5 4 r on data switch on-resistance switch closed, v in = 5 v, i s = 8 ma, test voltage on dp_out, dm_out = 3 v 2.7 4 i off off state leakage current v en = 0 v, vdp/dm_in = 3.6 v, vdp/dm_out = 0 v, measure idp/dm_out 1.5 a high-speed data switch - ac parameters (1) x talk dp, dm crosstalk r term = 50 , c load = 5 pf, v s = 1 v rms, signal = 0 dbm, f = 250 mhz 47 db o irr off state isolation r term = 50 , c load = 5 pf, v s = 1 v rms, signal = 0 dbm, f = 250 mhz 17 b w bandwidth -3 db r term = 50 , c load = 5 pf, signal = 0 dbm 1100 mhz charger emulator - bc1.2 dcp mode r dcp_res dp_in to dm_in short resistance ctlx configured for dcp bc1.2 100 170 charger emulator - divider mode v dm_1a dm_in output voltage stcc5011, device set to dcp auto-detect mode or divider mode, v in = 5.0 v 2.65 2.7 2.75 v v dp_1a dp_in output voltage 1.96 2 2.04 r dm_1a dm_in output resistance stcc5011, device set to dcp auto-detect mode or divider mode, v in = 5.0 v 27 k r dp_1a dp_in output resistance 27 v dm_2a dm_in output voltage stcc5021, device set to dcp auto-detect mode or divider mode, v in = 5.0 v 1.96 2 2.04 v v dp_2a dp_in output voltage 2.65 2.7 2.75 table 4. electrical characteristics v in = 4.5 v to 5.5 v, v dd = 1.7 v to 5.5 v, -40 c < t j < 125 c (unless otherwise specified) (continued) symbol parameter conditions min. typ. max. unit electrical characterist ics stcc5011, stcc5021 10/37 docid024660 rev 6 r dm_2a dm_in output resistance stcc5021, device set to dcp auto-detect mode or divider mode, v in = 5.0 v 27 k r dp_2a dp_in output resistance 27 charger emulator - bc1.2 cdp mode v dm_src voltage source on dm_in for cdp detection v dp_in = 0.6 v, device in cdp bc1.2 mode 0.5 0.6 0.7 v v dat_ref dp_in rising voltage threshold to turn on v dm_src i dm_in = -250 a, device in cdp bc1.2 mode 0.25 0.32 0.4 v dat_ref_hyst v dat_ref hysteresis 40 mv v lgc_src dp_in rising voltage threshold to turn off v dm_src 0.8 1 v v lgc_src_hyst v lgc_src hysteresis 40 mv i dp_sink dp_in sink current 0.4 < v dp_in < 0.8 v, device in cdp bc1.2 mode 50 75 150 a charger emulator - timings t chg_dgl_on charging indication on deglitch delay from i out > i out _th to charging /attach asserted 0.5 s t chg_dgl_off charging indication off deglitch delay from i out < i out_th to charging deasserted 5 t vdm_src_on dm_in voltage source turn- on time from v dp_in 0 v -> 0.6 v to v dm_in = v dm_src , ctlx configured for cdp bc1.2 8 ms t vdm_src_off dm_in voltage source turn- off time from v dp_in 0.6 v -> 0 v to v dm_in = 0 v, ctlx configured for cdp bc1.2 1.3 t vbus_reapp out discharge pulse width from v out falling to 0.7 v during discharge to v out returning to 90%. 300 350 400 charger emulator - control pins ctlx v ctlx ctlx pins threshold voltage 0.4 1.6 v v hyst(ctlx) hysteresis voltage on ctlx pins 500 mv i ctlx leakage current v dd = 5.5 v, v in = 5.5 v, v ctlx = 0 v or 5 v -1 1 a table 4. electrical characteristics v in = 4.5 v to 5.5 v, v dd = 1.7 v to 5.5 v, -40 c < t j < 125 c (unless otherwise specified) (continued) symbol parameter condi tions min. typ. max. unit docid024660 rev 6 11/37 stcc5011, stcc5021 electrical characteristics 37 figure 3. ti ming waveforms charger emulator - charging indication i out_th output current threshold for charging detection dcp mode, cdp mode 20 ma v ol(charging /attach ) charging /attach output low voltage charging detected (i out > i out_th ) and charging time in s5 < t eoch (end of charge safety timer), i charging /attach = 1 ma 180 mv i ol(charging /attach ) charging /attach output leakage current v dd = 5.5 v, v in = 5.5 v, v charging /attach = 5 v 1a charger emulator - safety timer (1) t eoch charging timeout after attach detection from i out > i out_th after attach detection to charging /attach deasserted 3 hours 1. guaranteed by design. not tested in production. table 4. electrical characteristics v in = 4.5 v to 5.5 v, v dd = 1.7 v to 5.5 v, -40 c < t j < 125 c (unless otherwise specified) (continued) symbol parameter conditions min. typ. max. unit $ 0 9 9 ( 1 [ 9 2 8 7 [ w r q w r i i 9 2 8 7 w u w u , 2 8 7 , 2 6 w , 2 6 application information stcc5011, stcc5021 12/37 docid024660 rev 6 5 application information the stcc5011 and stcc5021 devices are designed to be implemented into the pc on a usb port in order to emulate the wall charger adapter when the pc is in standby mode or off, and to allow higher charge current when the usb interface is used for data communication. in order to handle these func tionalities, the stcc 5011/stcc5021 devices rely on usb bc1.2 specificat ions, chinese telecommunicati ons industry standard yd/t 1591-2009 and proprietary implementations ? bc1.2 charging profiles are: ? cdp: charging downstream port providing data communication plus charging (active usb data communications with 1.5 a support) ? sdp: standard downstream port providing data communication with no charging (active usb 3.0 data communications with 900 ma support or usb 2.0 data communications with 500 ma support) ? dcp: dedicated charging port (wall char ger emulation with no data communication and 500 ma to 1.5 a support) ? chinese telecommunications standard ? d+ and d- shorted to allow charging ? apple divider mode comes in 2 profiles ? 1 a max. current drawn by apple ipod, iphone (stcc5011) ? 2 a max. current drawn by apple ipad, supporting also apple ipod and iphone (stcc5021) ? blackberry emulator mode ? legacy mode (allowing 500 ma charging current) ? korean tablet charging mode (d+ and d- shorted and pulled up to a certain voltage) figure 4. typical application diagram 1. c vbus required by the usb specification. 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