 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| innovative power tm - 1 - www.active-semi.com copyright ? 2016 active-semi, inc. features ?? dedicated single-chip integrated dual cell battery management ?? dual cell battery charge r with cell balancing management ?? auto detection support usb bc1.2, chinese yd/t 1591-2009, apple, and samsung devices ?? meet en55022 class b radiated emi standard ?? pass mfi test ?? 4.5v-5.5v input voltage and 2.75a input current limit ?? 2.4a output current with cc regulation ?? 5.07v+/-1% output with prioritized power path from input to output ?? 4.20v/4.35v +/- 0.5% battery charge voltage accuracy of each cell ?? output plug-in detection wakeup and no load detection sleep mode ?? optimized power path and battery charge control ?? <10ua low battery drainage current ?? i2c port for optimal system performance and status reporting ?? configurable charge, discharge and hz modes ?? >92% charge and discharge efficiency at 2.4a output for full battery range ?? 4 modes of led operation ?? capability to charge wearable devices ?? weak input sources accommodation ?? safety: ?? input over-voltage protection ?? nearly zero power short circuit protection ?? output over-voltage protection ?? battery over-charge and over-discharge protections ?? charge/discharge thermal regulation ?? tqfn5x5-40 package applications ?? backup battery pack ?? power bank ?? dual cell boost battery charger ?? bluetooth speaker ?? standalone battery charger with usb output general description act2803 is a space-saving and dedicated single- chip solution for dual-cell battery charge and discharge. it takes 5v usb input source to charge a dual cell battery with boost configuration in three phases: preconditioning, constant current, and constant voltage. charge is terminated when the current reaches 10% of the fast charge rate. the battery charger is thermally regulated at 110 ? c with charge current foldback. if input 5v is not present, act2803 discharge a dual cell battery with buck configuration to provide 5.07v+/-1% to output ports. there is a power path from input to output. the cycle-by-cycle peak current mode control, constant current regulation, short circuit protection and over voltage protection maximize safe operation. act2803 provides 4 led drive pins for battery capacity level and charge status indication to indicate 25%, 50%, 75%, and 75% above battery level with battery impedance compensation. the led indication patterns are programmable . act2803 is available in a thermally enhanced 5mmx5mm qfn55-40 package with exposed pad. 5v/2.4a dual cell battery power manager rev 1, may-12-2016 act2803 buck output cc/cv buck output voltage (v) 6.0 5.0 4.0 3.0 2.0 1.0 0 output current (ma) 0 500 1000 1500 2000 2500 3000 v bat = 8.2v v bat = 6.0v
rev 1, may-12-2016 innovative power tm - 2 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 ordering information part number junction temperature package pins ACT2803QJ-T -40 ? c to 150 ? c qfn55-40 40 ACT2803QJ-T0435 -40 ? c to 150 ? c qfn55-40 40 battery cell voltage 4.20v 4.35v pin configuration top view rev 1, may-12-2016 innovative power tm - 3 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 pin descriptions pin name description 1 csn output current sense negative input. 2,3 csp output current sense positive input. 4, 5 vout power output pin. 6, 7 vin usb or ac adapter input. 8 ovgate output to drive optional exter nal nmos protect ic from over voltage. 9 ovsens usb or ac adapter input sense. 10 scl i2c clock input. 11 sda i2c data input. 12 pgnd power ground. directly connect this pin to ic thermal pad and connect 22uf high quality capacitors from bat to pgnd on the same layer with ic. 13 hsb high side bias pin. connect a 47nf ceramic capacitor from hsb to sw. 14,15 sw internal switch connected to a terminal of the output inductor. 16,17 bat bat connection. connect it to battery current sense positive terminal. bypass to pgnd with high quality ceramic capacitors placed as close to the ic as possible. 18 bats battery charge current sense input. connect to charge sense resistor positive terminal with kevin sense. 19 batp connect to charge sense resistor negative terminal and battery positive terminal. 20 batc battery central point connection. connect to dual battery cell common terminal. 21 cbd cell balancing discharge. connect to a discharge resistor from this pin to battery common terminal. 22 batn battery ne gative terminal. 23 icst fast charge current setting pin. connect a resistor from this pin to agnd to set the charging current. the current setting ranges from 0.5a-1.8a. the voltage at this pin reflects the charge current and discharge current in charge mode and discharge mode, respectively. 24 th temperature sensing input. connect to a battery thermistor terminal. 25 vreg + 5v bias output. connect a 1.0uf to this pin. this pin supplies up to 50ma output current. the bias turns on in charge mode and discharge mode. internal register bit can shut down the bias. bias turns off in hz mode. 26 agnd logic ground output. connect this pin to the exposed pgnd pad on same layer with ic. 27 pb push button input. when this pin is pushed for more than 40ms, led1-4 indicators are enabled for 5 seconds. 28 led1 battery level indicator. rev 1, may-12-2016 innovative power tm - 4 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 pin descriptions pin name description 29 led2 battery level indicator. 30 led3 battery level indicator. 31 led4 battery level indicator. 32 ledls1 led1 threshold level shift. conn ect a resistor from the pin to agnd to shift led1 threshold. 33 ledls2 led2 threshold level shift. conn ect a resistor from the pin to agnd to shift led2 threshold. 34 ledls3 led3 threshold level shift. conn ect a resistor from the pin to agnd to shift led3 threshold. 35 ledls4 led4 threshold level shift. conn ect a resistor from the pin to agnd to shift led4 threshold. 36 pt led indication mode input. the 5 modes of led indication patterns are set by a voltage at this pin. connect a resistor at the pin to se t the voltage and an led indication pattern . 37 rimc rimc battery impedance compensation input. connect a resistor to this pin to offset the led thresholds in charge mode and discharge mode. 38 hyst the hysteresis window setting input. connect a resi stor at the pin to set the hysteresis windows for led1, 2, 3, 4. in charge mode, led th resholds moves up and in discharge mode, led thresholds moves down. 39 dm output port auto detection input. connected to portable device d-. 40 dp output port auto detection input. connected to portable device d+. 41 pgnd exposed pad. must be soldered to ground plane layer(s) on the pcb for best electrical and thermal conductivity. rev 1, may-12-2016 innovative power tm - 5 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 absolute maximum ratings ? do not exceed these limits to prevent damage to the device. exposure to absolu te maximum rating conditions for long periods may affect device reliability. parameter value unit ledls1, ledls2, ledls3, ledls4, rimc, hyst and pt to gnd -0.3 to +6 v led1, led2, led3 and led4 to gnd -0.3 to +6 v pb, dm, dp, th, scl, sda and icst to gnd -0.3 to +6 v ovsens to gnd -0.3 to +16 v ovgate to gnd -0.3 to +12 v vin, vout and vreg to gnd -0.3 to +6 v csp to csn, csp to vo ut -0.3 to +0.3 v bat to bats, bats to ba tp -0.3 to +0.3 v batc to batn -0.3 to +6 v bat to batc -0.3 to +6 v batn to gnd -0.3 to +0.3 v cbd to bat -6 to +0.3 v batn to cbd -6 to +0.3 v sw to pgnd -0.3 to +12 v hsb to sw -0.3 to +6 v junction to ambient thermal resistance ( ja ) 40 /w operating junction temperature (t j ) -40 to 150 operating temperature range (t a ) -40 to 85 store temperature -55 to 150 lead temperature (soldering, 10 sec) 300 rev 1, may-12-2016 innovative power tm - 6 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 parameter test conditions min typ max unit input current limit, over voltage protection, output under voltage protection input voltage range 4.5 5.5 v input over voltage protection vin rising, v in _ovp 5.5 5.7 6.0 v input over voltage hysteresis vin falling, vin_ovp_hyst 290 mv input under voltage lock-out vin rising, v in _uvlo 4.2 v input under voltage lock-out hysteresis vin falling, vin_uvlo_hyst 200 mv input current limit setting range -10% 2.75 +10% a output under voltage protecti on (uvp) vout falling, vout_uvp 3.65 v output under voltage protection hysteresis vout rising, vout_uvp_hyst 200 mv q1 wait time in hiccup mode 3 s boost mode/charge mode switching frequency -15% 400 +15% khz precondition voltage threshold of each cell vbat1,2 rising 2.8 v preconditioning current percentage of fast charge current 15 % boost charger uvlo vout rising, bst_uvlo 4.2 v battery end-of-c harge voltage vbat_eoc (ACT2803QJ-T) -0.5% 4.2 +0.5% v vbat_eoc (ACT2803QJ-T0435) -0.5% 4.35 +0.5% v fast charge current setting ricst=8k -10% 1.0 +10% a end of charge detection current percentage of fast charge current 10 % shielding cable detection threshold at pb pb falling in charge mode 3.5 v charge current foldback threshold with vin, without shielding cable connected start point 4.7 v end point 4.6 v charge current foldback threshold with vin, with shielding cable connected start point 4.92 v end point 4.82 v continuous charging time after eoc teoc 45 min charger thermal regulation temperature 100 110 120 electrical characteristics (v in = 5v, t a = 25c, unless otherwise specified.) rev 1, may-12-2016 innovative power tm - 7 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 parameter test conditions min typ max unit buck mode/discharge buck under voltage lock-out vabt falling, vbat1,2 2.9 v vout output regulation voltage reg3[1:0]=00 , default 5.07 v reg3[1:0]=01 5.12 v reg3[1:0]=10 5.17 v reg3[1:0]=11 5.22 v vout current limit rcs=25m , icc 2.45 2.65 2.85 a buck converter under voltage protection threshold vout falling goes into hiccup 3.65 v buck converter over voltage protection threshold vout rising, bck_ovp 5.7 v buck convert hiccup time 3.4 s buck converter light-load cut-off current 5 10 15 ma buck converter light-load cut-off deglitch time 12.5 s high side switch peak current limit all condition 4.5 a over temperature protection otp 160 over temperature protection hysteresis otp_hyst 20 battery protection battery over charge current 2.6 3 a battery over voltage percentage of eoc voltage 101.5 102.5 103.5 % battery under voltage and short circuit protection 1.6 v preconditioning timer if timer expi res, goes to latch-off 1 hr th pull-up current charge mode 140 ua discharge mode 100 ua th high threshold charge mode 2.5 v discharge mode 2.5 v electrical characteristics (v in = 5v, t a = 25c, unless otherwise specified.) rev 1, may-12-2016 innovative power tm - 8 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 parameter test conditions min typ max unit th low threshold charge mode 1 v discharge mode 0.57 v system management vreg output current 50 ma pb rising threshold pb rising, discharge mode 0.95 v pb falling threshold pb falling, discharge mode 0.75 v pb internal pull up resistance pull up to internal supply 1.2 m fault condition alarm frequency 0.5s on and 0.5s off 1.0 hz fault condition alarm timer 10 s led indication led1-4 indication level setting 5.5 8.8 v led sink current 3 ma led1-4 scan interval for each led pattern before lighting leds 0.5 s electrical characteristics (v in = 5v, t a = 25c, unless otherwise specified.) rev 1, may-12-2016 innovative power tm - 9 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 electrical characteristics (v in = 5v, t a = 25c, unless otherwise specified.) notes: 1. comply to i2c timing s for 1mhiz operation - ?fast mode plus? 2. no internal timeout for i2c operations 3. this is a i2c system specification only. rise and fall time of scl & sda not controlled by the device. 4. device address is 7?h5a - read address is 8?hb4 and write is 8?hb5 sda scl t st t su t hd t sp t scl start condition stop condition parameter test conditions min typ max unit scl, sda input low v cc = 5v 0.4 v scl, sda input high v cc = 5v 1.25 v sda leakage current sda=5v 1 a sda output low i ol = 5ma 0.35 v scl clock frequency, f scl 0 1000 khz scl low period, t low 0.5 s scl high period, t high 0.26 s sda data setup time, t su 50 ns sda data hold time, t hd see note: 1 0 ns start setup time, t st for start condition 260 ns stop setup time, t sp for stop condition 260 ns capacitance on scl or sda pin 10 pf sda fall time sda, t of device requirement 120 ns rise time of both sda and scl, t r see note: 3 120 ns fall time of both sda and scl, t f see note: 3 120 ns pulse width of spikes must be sup- pressed on scl and sda 0 50 ns rev 1, may-12-2016 innovative power tm - 10 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 i 2 c description programmable parameter list items step/status default comment input current limit and q1 input current limit 0.6a,1 .25a, 2.75a, 3.4a 2.75a +/ -10% vin uvlo 4.2v, 4.5v 4.2v +/ -3.0% buck converter/discharge mode discharge cut-off voltage 2.7v, 2.8v, 2.9v, 3.0v 2.9v +/ -2% vout current limit 1.25a/2.65a 2.65a vout voltage 5.07v, 5. 12v, 5.17v, 5.22v 5.07v boost converter/charge mode battery eoc voltage 4.35v, 4.20v, 4.15v, 4.1v 4.20v ( ACT2803QJ-T) 4.35v ( ACT2803QJ-T0435) pre-charge voltage threshold 2.8v, 3.0v 2.8v pre-charge current 10%, 15%, 20%, 25% 15% eoc current 6%, 10%, 14%, 18% 10% fast charge current 60%, 80%, 100%, 120% 100% vcc on/off in hz mode on, off off system rev 1, may-12-2016 innovative power tm - 11 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 customer register map add- ress name type reset value 7 6 5 4 3 2 1 0 1 master r/w 8'h00 spare spare force standby 0: no force 1: force disable light load 0: enable 1: disable disable battery cell balance 0: enable 1: disable mask faults 0: no mask 1: mask clear faults 0: no clear 1: clear faults soft reset 0: no re- set 1: reset 2 config system r/w 8'h00 spare spare spare led indication lock-out 0: 0s 1: 30s led current 0: 3ma 1: 5ma led scan disable 0: enable 1: disable led always display dur- ing discharge 0: disable 1: enable led breathing pwm pe- riod 0: 2s 1: 3s 3 config discharge r/w 8'h88 spare vin uvlo level 0: 4.2v 1: 4.5v spare battery discharge cut-off voltage 00: 2.7v 01: 2.8v 10: 2.9v 11: 3.0v spare 4 config charge r/w 8'h99 charge time after eoc 0: 0s 1: 45mins battery pre- condition voltage level 0: 2.8v 1: 3.0v battery pre-condition current level 00: 10% 01: 15% 10: 20% 11: 25% spare battery eoc current level 00: 6% 01: 10% 10: 14% 11: 18% 5 config charge & system r/w 8'h92 battery fast charge current level 00: 60% 01: 80% 10: 100% 11: 120% vreg on/ off in hz mode 0: off 1: on hz latch-off 0: no latch-off 1: latch-off spare cell bal- ance hys- teresis 0: 120mv 1: 60mv thermistor thresholds 0: single 1: dual spare 6 system status r 8'h00 dc-dc operation mode 00: disabled 01: charge 10: discharge 11: not used battery charging status 00: trickle 01: pre-condition 10: fast charge 11: top off usb device status 0: not con- nected 1: con- nected spare spare spare 7 system fault r 8'h00 vin uv/ov 0: no fault 1: fault vout uv/ ov 0: no fault 1: fault over- temperature 0: no fault 1: fault discharging thermal fold- back 0: no fault 1: fault flash light over-current 0: no fault 1: fault spare spare spare 8 battery fault r 8'h00 battery over - tempera- ture 0: no fault 1: fault battery un- der- temperature 0: no fault 1: fault battery over- voltage 0: no fault 1: fault battery cut-off 0: no fault 1: fault battery short & pin fault 0: no fault 1: fault battery over cur- rent 0: no fault 1: fault battery trickle/pre- condition timer expire 0: no fault 1: fault battery low 0: no fault 1: fault spare spare spare rev 1, may-12-2016 innovative power tm - 12 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 act2803 is a complete battery charging and discharging power management solution for applications of dull-cell lithium-based backup battery pack or power bank. with the advanced bidirectional architecture, a synchronous boost/buck converter is connected from vout to switching node (sw). the converter could be configured as either boost to charge battery or buck to discharge battery. modes of operation act2803 has 3 operation modes: charge mode, discharge mode, and high-impedance (hz) mode. high impedance (hz) mode hz mode is the default mode. in hz mode, all the switches are turned off , only pb circuit alive and the ic draws less than 1 0ua current from vbat. discharge mode in discharge mode, buck converter operates in cv/ cc regulation. vout current limit is set at 2.65a. charge mode act2803 is configured in charge mode (boost mode) when vin is valid. in this mode, a battery is charged with trickle, preconditioning, fast charge, top-off and end of charge (eoc). the typical charge management is shown in figure 1. precondition charge when operating in precondition state, the cell is charged at a reduced current at 15% of the programmed maximum fast charge constant current. once v bat reaches the precondition threshold voltage the state machine jumps to the fast charge state. fast charge if battery voltage is above preconditioning threshold, boost converter charges battery with constant current. in fast charge state, the act2803 charges at the current set by the external resistor connected at the icst pin. during a normal charge cycle fast charge continues in cc mode until v bat reaches the charge termination voltage, at which point the act2803 charges in top off state. top off device transitions from fast charge (cc) to top off (cv), and moves to eoc (end of charge) state when charging curr ent is less than i eoc . end of charge in top off mode, when charges current decreases to 10% of set fast charge current, the boost converter goes into end of charge mode and keep monitoring the battery voltage. recharge in eoc, device would re-charge batteries when both battery voltage levels drops 5% below v eoc . battery removal if the battery is removed, boost converter regulates at the programmed regulation voltage. cell balance cell balance is activated in both fast charge and top off modes. each battery is connected with a parallel bleeding switch. push button pb is always watched in hz mode and discharge mode. if the push but on pb is pressed for >40ms in hz mode, the led (s) will turn on for 5 seconds. in the mean time, discharge mode is enabled. functional description a: precondition state b: fast-charge state c: top-off state d: end-of-charge state figure 1. typical li+ charge profile and act2803 charge states rev 1, may-12-2016 innovative power tm - 13 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 applications information fast charge current control the block diagram in figure 2 shows how battery current is sensed for charge current control. figure 2: battery current monitoring a small percentage of charge current is sensed and sinked into a resistor connected at pin icst. in charge mode, this would a llow user to set fast charge current based on the following equation. for example, i c =1a with r cs =25m and r icst =8k . recommended ricst is shown in following table: during discharge mode, inputs of battery current sense amp are flipped to sense discharge current, and voltage level at pin icst can be used (by the system) to monitor the magnitude of discharge current based on the following equation. for example: v icst =0.4v with i_discharge=1a, and r icst =8k . led threshold setting led1, led2, led3 and led4 thresholds are adjustable with external resistors r ls1 , r ls2 , r ls3 , and r ls4 connected from ledls1, ledls2, ledls3, ledls4 to apng respectively, as shows in figure3. figure 3: led threshold setting the following equation shows how the external resistor shifts the led thresholds. the range of led1 \ led4 indicator threshold shift from 5.5v \ 8.8v. vled example is given by the below table: led hysteresis window setting the adjustable led voltage thresholds are set for hz mode. in charge mode, the measured battery voltage is higher than in hz mode, while in discharge mode, the measured battery voltage is lower. to have relatively better ?fuel gauge? for battery, a programmable hysteresis window will help. when the battery voltage goes up (in charge mode), the thresholds become higher, when the battery voltage goes down, lower thresholds are applied. act2803 provide hyst pin to set hysteresis window for each indication level as shows in figure 3 . rlsx (k ) vledx (v) 40 8.2 43.2 8 47 7.798 49.1 7.7 57 7.395 60 7.3 67.5 7.1 rlsx (k ) vledx (v) 72 7 90 6.7 108 6.5 120 6.4 135 6.3 180 6.1 270 5.9 ) 1 ( ) ( * ) ( 5 1000 ) ( ? ? ? k r m r * a ic icst cs i c (a) r icst units r cs =25m ? r cs =50m ? 0.8 10 5 k ? 0.9 8.89 4.44 k ? 1.0 8 4 k ? 1.1 7.27 3.64 k ? 1.2 6.67 3.33 k ? 1.3 6.15 3.08 k ? 1.4 5.71 2.86 k ? 1.5 5.33 2.67 k ? ) 2 ( 20 ? ? ? k r i v icst discharge icst act2803 rimc hyst r hy st ledls1 ledls2 ledls3 ledls4 r imc r ls1 r ls2 r ls3 r ls4 ) 3 ( ) ( 108 5 . 5 ) ( ? ? ? ? k r k v v lsx v ledx rev 1, may-12-2016 innovative power tm - 14 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 applications information hyst pin is regulated at 1v. its input current will determine hysteresis adjustment equally to all level. connect hyst to apgn via a resistor to set hysteresis window. beside the hysteresis window, to avoid comparison oscillation, fixed 100mv of hysteresis is added to each level comparator. hysteresis window is given by below equation: rhyst example is given by the below table: battery impedance compensation to avoid the number of leds changes between charge and discharge modes. internal impedance compensation circuit is built in. an external resistor is used to set the impedance from 100m to 800m . rimc is corresponding to battery impedance. the led1-4 thresholds shifted up and down based on the produc t of charge/discharge current and set impedance. rimc value is given by below equation. in case not using compensation, float rimc then there is no compensation affects to trig-points. rimc example is given by the below table: battery temperature monitering the act2803 monitors the battery pack temperature by measuring th voltage at the th pin as shows in figure 4. t he th pin is connected to the thermistor resistor net which includes a negative temperature coefficient thermistor. an internal current source provides a bias current to generate th voltage. the act2803 compares the voltage at the th pin with the internal v thh and v thl thresholds to determine if charging or discharging is allowed. when v th rev 1, may-12-2016 innovative power tm - 15 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 applications information in charge mode, the battery charger provides bias current to balance battery charge. the balance resistor is either connected to upper battery or lower battery depending on which battery voltage is higher. the balance resistor is connected in parallel with one battery that is higher than the other battery. for extremely unbalanced 2s batteries, the charger takes a few cycles to make two battery voltage balanced. for some applications, like removable dual cell batteries, a charger is required to balance dual cells in one charge cycle. in this case, the circuit shown in figure 5 is recommended. the balance current through the 22 ohm resistor needs to be higher than eoc current threshold. figure 5: cell balance led indication ? act2803 is designed 5 levels of pt pin voltage into 5 application patterns. a resistor is connected from pt pin to ground and the voltage at pt pin programs the led indication patterns shown in figure 6 . figure 6: led indication in discharge mode, when battery voltage goes below led1 threshold, led1 starts flashing until buck (discharge mode) turns off due to either light load or buck uvlo. the flash frequencies for all the leds are 0.5hz with 1s on and 1s off. in hz mode, when pb is pressed for 40ms, buck turns on. if vbat rev 1, may-12-2016 innovative power tm - 17 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 figure 7. act2803 typical application circuit (input current limit 2.75a, fast c harge current limit 1.0a, discharge output constant current 2.4a) charge: cold: 0c, hot: 45c. discharge: cold: -20c, hot: 60c. rev 1, may-12-2016 innovative power tm - 18 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 table 5: bom list item reference description qty manufacturer 1 l1 swpa8040s4r7nt 4.7uh 5.9a(8*8*4mm) 1 sunlord 2 d1 mbr1020vl, 20v/1a schottky, sma, optional 1 panjit 3 c1 ceramic capacitor, 10uf/16v, x7r, 1206 1 murata/tdk 4 c2 ceramic capacitor, 4.7uf/10v, x7r, 0805 1 murata/tdk 5 c3,c10,c11,c12 ceramic capacitor, 22uf/10v, x7r, 1206 4 murata/tdk 6 c5,c7,c8 ceramic capacitor, 22uf/16v, x7r, 1206 3 murata/tdk 7 c4 ceramic capacitor, 47nf/16v, x7r, 0603 1 murata/tdk 8 c6,c13 ceramic capacitor, 0.1uf/16v, x7r, 0603 2 murata/tdk 9 c14 ceramic capacitor, 2.2nf/10v, x7r, 0603 1 murata/tdk 10 c15 ceramic capacitor, 1uf/10v, x7r, 0603 1 murata/tdk 11 c16 ceramic capacitor, 2.2uf/10v, x7r, 0603 1 murata/tdk 12 c19 ceramic capacitor, 3.3uf/10v, x7r, 0603 1 murata/tdk 13 c20 ceramic capacitor, 100nf/10v, x7r, 0603 1 murata/tdk 14 r1 chip resistor, 2.7 , 1/8w, 5%, 0805 1 murata/tdk 15 r2,r3 chip resistor, 25m , 1/2w, 1%, 1206 2 sart 16 r5 chip resistor, 8k , 1/10w, 1%, 0603 1 murata/tdk 17 r6 chip resistor, 83k , 1/10w, 1%, 0603 1 murata/tdk 18 r7 chip resistor, 63.5k , 1/10w, 1%, 0603 1 murata/tdk 19 r8 chip resistor, 51.4k , 1/10w, 1%, 0603 1 murata/tdk 20 r9 chip resistor, 41.5k , 1/10w, 1%, 0603 1 murata/tdk 21 r10,r11 chip resistor, 540k , 1/10w, 1%, 0603 2 murata/tdk 22 r12 chip resistor, 0.47 , 1/8w, 1%, 0805 1 murata/tdk 23 r14,r26 chip resistor, 715k , 1/10w, 5%, 0603 2 murata/tdk 24 r15 chip resistor, 12k , 1/10w, 1%, 0603 1 murata/tdk 25 r17 chip resistor, 10 , 1/10w, 5%, 0603 1 murata/tdk 26 r24 chip resistor, 47 , 1/2w, 1%, 1206 1 murata/tdk 27 r27 chip resistor, 100 , 1/10w, 1%, 0603 1 murata/tdk 28 r30,r31 chip resistor, 510 , 1/10w, 5%, 0603 2 murata/tdk 29 r32 chip resistor, 3k , 1/10w, 1%, 0603 1 murata/tdk 32 led1,led2, led3,led4 led, 0603, blue 4 led manu 33 pb push button switch 1 34 output usb 10.2*14.6*7mm,4p 1 35 micro-usb micro usb 5p/f smt b 1 36 u1 ic, act2803 qfn 5x5-40 1 act 30 r33 chip resistor, 32k , 1/10w, 1%, 0603 1 murata/tdk 31 r ntc 103at ntc thermistor, nxrt15xh103v 1 murata rev 1, may-12-2016 innovative power tm - 19 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 typical performance ch aracteristics cont?d (schematic as show in figure 7, ta = 25c, unless otherwise specified) act2803-001 input current (ma) 3000 2500 2000 1500 1000 500 0 test point 0 4 8 12 16 28 20 24 act2803-002 charge current (ma) 1200 1000 600 400 200 0 800 vbat (v) 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 act2803-003 charge efficiency efficiency(%) 96.0 95.0 94.0 93.0 92.0 91.0 90.0 vbat (v) 5.5 6.0 6.5 7.0 7.5 8.0 8.5 act2803-005 battery charge current vs. junction temperature battery charge current (ma) 1000 800 600 400 200 0 1200 1400 temperature (c) -20 0 20 40 60 80 100 120 140 act2803-004 discharge efficiency efficiency(%) 100.0 90.0 80.0 70.0 60.0 50.0 output current (ma) 0 400 800 1200 1600 2000 2400 2800 charge current act2803-006 battery leakage (a) 25.0 20.0 15.0 10.0 5.0 0 temperature (c) -20 0 20 40 60 80 120 100 battery leakage vs. junction temperature (hz mode) v bat = 8.2v v bat = 7.0v v in = 5.0v i chrg =1.0a v in = 5.0v i chrg = 1.0a v in = 5.0v i chrg = 1.0a v in = 5.0v v bat = 7.0v battery charge v/i profile charge current vs. output current v bat = 7.0v v bat = 8.4v v bat = 6.0v input current output current rev 1, may-12-2016 innovative power tm - 20 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 typical performance ch aracteristics cont?d (schematic as show in figure 7, ta = 25c, unless otherwise specified) act2803-007 buck output constant current limit vs. temperature buck output constant current (ma) 2700 2650 2600 2550 2500 2450 2750 temperature (c) -30 0 30 60 90 120 150 v bat = 8.4v cv= 4.0v rcs=25m (1%) act2803-009 buck output constant current limit vs. v bat buck output constant current (ma) 2720 2680 2660 2640 2620 2600 2700 vbat (v) 5.8 6.2 6.6 7.0 7.4 8.2 8.6 7.8 act2803-010 buck output cc/cv buck output voltage (v) 6.0 5.0 4.0 3.0 2.0 1.0 0 output1 current (ma) 0 500 1000 1500 2000 2500 3000 v bat = 8.2v v bat = 6.0v act2803-011 buck standby current vs. battery voltage standby current (ma) 1.2 1.1 1.0 0.9 0.8 0.7 0.6 act2803-012 battery leakage (a) 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0 battery voltage(v) 0 2.0 4.0 6.0 12.0 14.0 8.0 10.0 battery leakage vs. battery voltage (hz mode) battery voltage (v) 5.8 6.2 6.6 7.0 7.4 8.2 8.6 7.8 buck output voltage vs. output current act2803-008 buck output voltage (v) 5.25 5.20 5.15 5.10 5.00 4.95 5.05 buck output current (ma) 0 500 1000 1500 2000 2500 3000 v bat =8.4v v bat =6.0v rev 1, may-12-2016 innovative power tm - 21 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 typical performance ch aracteristics cont?d (schematic as show in figure 7, ta = 25c, unless otherwise specified) buck load transient (iout: 80ma-1a-80ma, ) ch1 ch2 v bat = 8.2v v out = 5.0v buck load transient (iout:1a-2.4a-1a) act2803-014 ch1 ch2 act2803-013 ch1: v out , 200mv/div ch2: i out , 500ma/div time: 1ms/div v bat = 8.2v v out = 5.0v ch1: v out , 200mv/div ch2: i out , 1a/div time: 1ms/div rev 1, may-12-2016 innovative power tm - 22 - www.active-semi.com copyright ? 2016 active-semi, inc. act2803 qfn55-40 package outlin e and dimensions active-semi, inc. reserves the right to modify the circuitry or specifications without notice. user s should evaluate each product to make sure that it is suitable for their applicat ions. active-semi products are not intended or authorized for use as critical components in life-support dev ices or systems. active-semi, inc. does not assume any liability arising out of the use of any product or circuit described in this datasheet, nor does it convey any patent license. active-semi and its logo are trademarks of active-semi, inc. for more information on this and other products, contact sales@active-semi.com or visit http://www.active-semi.com . is a registered trademark of active-semi. symbol dimension in millimeters dimension in inches min max min max a 0.700 0.800 0.028 0.031 a1 0.000 0.050 0.000 0.002 a3 0.203 ref 0.008 ref b 0.150 0.250 0.006 0.010 d 4.924 5.076 0.194 0.200 e 4.924 5.076 0.194 0.200 d1 3.300 3.500 0.130 0.138 e1 3.300 3.500 0.130 0.138 e 0.400 typ 0.016 typ l 0.324 0.476 0.013 0.019 k 0.200 min 0.008 min package outline |
Price & Availability of ACT2803QJ-T
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |