Lithium-Ion Battery Charge Control IC Monolithic IC MM3358

Transcription

1 Lithium-Ion Battery ontrol I Monolithic I MM3358 Outline This I is a linear charge control I for 1-cell Lithium-Ion and lithium-polymer batteries. It incorporates a power MOSFET and a reverse-current block circuit for easy implementation of charge control of Lithium-Ion and Lithium-polymer batteries without an external sense resistor and a reverseblocking diode. The chip temperature detection function can limit the temperature rise in the I during high power charging and the temperature detection function enables the temperature for charge to be controled. This I uses a small PLP-1pin package. Features 1. Regulation Voltage 4.2V±3mV(±.7%) 2. Fast 558mA±5%(RIHG=2.32kΩ) 3. The external resistor enables trickle/fast-charge current/charge completion current to be set (Maximum charge current : 1.5A). 4. A charge timer is embedded in this I. The external resistor enables the charge timer to be set arbitrarily. 5. The chip temperature detection function can limit the temperature rise in the I during high power charging. It can be charged at an optimal rate. 6. The battery temperature detection function with thermistor input enable the temperature for charge to be controled. 7. Driver (1ch) 8. 1pin Small Package; PLP-1( mm max.) Package PLP-1 Applications 1. ellular phones 2. Portable music players 3. PDAs 4. Digital still cameras 5. Portable game devices

2 Block Diagram Input/Output difference detection (-<.45V) Li-Ion 1µF A Adaptor (5V) Reset detection (2.5V) Adaptor detection (3.8V) VREF 1/N Battery discharge (1µA,2µA, 3µA) VREF onstant voltage control (4.2v) current detection RIHG Richg 2.32k VDD VREF VDD (1.92V) VVREF (REG) onstant current control (.1,.3,1) REF / VDD completion detection (.1) REG REG Overvoltage detection (4.35V) Recharge detection (3.97V) I[A]- REF(1.92V)/ Richg 674 1k Thermistor 1k (@25º) TH hys hys Low temperature detection High temperature detection Temperature control current 1.2 Ttreg1 Ttreg2 Tsd (93º) (13º) (153º) hip surface temperature hys hys REG REG Fast-charge start detection (3.V) charge start detection (1.1V) ontrol Timer short Fosc[Hz]=.912V/(1.425E-1*Rosc) Rosc 1k ROS REG OS (64kHz) RESET Timer Timer short TMRcnt GND

3 Pin Assignment 1 1 Rosc RIHG GND 4 7 TMRcnt VDD 5 6 TH PLP-1 (TOP VIEW) 1 6 TH 2 Rosc 7 TMRcnt 3 8 RIHG 4 GND 9 5 VDD 1

4 Pin Description Pin. Symbol Function 1 Power supply, charge Tr input pin. onnect to an A adaptor. Oscillation frequency setting resistance connection pin 2 Rosc fosc=.912v/(1.425e-1 Rosc) Estimation : The fosc value for each Rosc value is specified on Flow hart. 3 connect pin (Pch open drain output) Turn on during charging. 4 GND Ground pin 5 VDD 6 TH 7 TMRcnt 8 RIHG 9 1 Battery temperature detecting reference voltage pin It is not recommended to be used other than as battery temperature detecting reference voltage (resistance connection) since it is also used for internal charge current reference voltage. Battery temperature detection input pin. onnect to a thermistor. Used for both a timer and a Blinking cycle time reduction pin Enter time reduction mode when TH>(-approx.1.V), >3.8V, and when maintaining 32ms 2. Timer (trickle charge timer, fast charge timer) / control pin High: Timer stops, Low/open: Timer is valid. current setting resistance connection pin IHG= V/RIHG Estimation: The IHG value for each RIHG value is specified on Flow hart. Used for both a timer and a blinking cycle time reduction pin Enter time reduction mode when RIHG>(-approx. 1.V), >3.8V, and when maintaining 32ms 2., constant voltage charge control pin onnect to the positive side of a battery pack. Tr output pin onnect to the positive side of a battery pack. Absolute Maximum Ratings Item Symbol Ratings Units Storage temperature TSTG 55~+15 Operating temperature TOPR 4~+85, Rosc, VDD, TH, TMRcnt, RIHG,, pin voltage Vin.3~+6. V pin output current I 1.5 A pin output current I 2 ma Power dissipation Pd 2.25 ( 1) W note : 1 When mounted on a tmm (opper foil area 5%, FR4) P board. Recommended Operating onditions Item Symbol Ratings Units Operating temperature TOPR ~+45 Operating voltage Vop 4.~6. V

5 Electrical haracteristics (Except where noted otherwise Ta=~45, =5V) Item Symbol Measurement conditions Min. Typ. Max. Units Supply current 1 I1 During fast charge (Irapchg = 5mA setting) ma Supply current 2 ( 1) I2 During fast charge (Irapchg = 1mA setting) ma Leak current 1 Ileak Inflow current of / pin under the following conditions : 1. (=)=4.2V A adaptor is unconnected 2. =4.8V charging is completed 1 2 µa Leak current 1 ( 1) Ileak Inflow current of / pin under the following condition: 1. (=)=1.~4.2V A adaptor unconnected 1 2 µa Reset detection voltage Vpor Reset mode when <VPOR V ADP detection voltage Vadp harging stops when <Vadp V pin discharge current 1 Idischg1 (=)=3.2V in charge error mode 1 2 µa pin discharge current 2 Idischg2 (=)=3.2V µa start detection voltage start detection voltage hysteresis Vstart Vstarthys Used for battery connection detection as well harging stops when (=)<Vstart t applied to battery voltage detection immediately after reset release V mv Fast-charge start detection voltage Vqchgon V Fast-charge start detection voltage hysteresis Vqchgonhys Applied to detection voltage from fast charge to trickle charge mv Recharge detection voltage Vrechg harging restarts when (=)<Vrechg V regulation voltage Vchg V stop I/O potential difference 1 stop I/O potential difference 2 Vdef1 Vdef2 stops when Vdef1 =High Low stops when Vdef2 =Low High mv mv Battery overvoltage detection voltage Vov = Vov+1mV V note : 1 The parameter is guaranteed by design.

6 Item Symbol Measurement conditions Min. Typ. Max. Units Forced charge current Istart RIHG=2.32kΩ.3 (1.=Irapchg) ma Trickle-charge current Iprechg RIHG=2.32kΩ.1 (1.=Irapchg) =2.6V ma Trickle-charge current ( 1) Iprechg( ) RIHG=2.32kΩ.1 (1.=Irapchg) =Vstart~Vqchgon ma Fast-charge current Irapchg RIHG=2.32kΩ 1. =3.6V ma Fast-charge current ( 1) Irapchg( ) RIHG=2.32kΩ 1. =Vqchgon~Vchg ma Fast-charge current2 Irapchg2 RIHG=1.3kΩ 1. =3.6V 1 ma completion current Ifc RIHG=2.32kΩ =Vqchgon ma completion current ( 1) Ifc( ) RIHG=2.32kΩ >Vqchgon ma hip temperature detection1( 1) Ttreg1 Applied to Tj (chip temperature) hip temperature detection2( 1) Ttreg2 Applied to Tj (chip temperature) 13 hip temperature detection difference ( 1) Tdtreg Applied to Tj (chip temperature) Ttreg2 Ttreg Thermal shutdown temperature ( 1) Tsd Applied to Tj (chip temperature) Temperature detecting reference voltage Temperature detecting reference terminal current ( 1) VDD VDD pin Output Voltage 1.92 V IDD VDD pin Output 3 ma stop temperature detection voltage (Low temperature) VthSL stop threshold when TH pin rises (2 ) VDD VDD VDD V stop temperature detection voltage (High temperature) VthSH stop threshold when TH pin falls (43 ) VDD VDD VDD V recovery temperature detection voltage (Low temperature) VthRL recovery threshold when TH pin falls (4 ) VDD VDD VDD V recovery temperature detection voltage (High temperature) VthRH recovery threshold when TH pin rises (38 ) VDD VDD VDD V note : 1 The parameter is guaranteed by design.

7 Item Symbol Measurement conditions Min. Typ. Max. Units TMRcnt pin Low-level input voltage Vtmrl.5 V TMRcnt pin High-level input voltage Vtmrh 2 V TMRcnt pin Low-level input current Itmrl TMRcnt=V 1 µa TMRcnt pin High-level input current Itmrh TMRcnt=5.V 1 µa Output pin High-level voltage Vledh Iled= 1mA.6 V Output pin leak current Iledleak =V 1 1 µa Series Pass Tr On Resistance Ron Io=2mA.38.6 Ω Oscillator frequency ( 1) Foc Rosc=1kΩ khz Applied to a pin when Rosc=1k and Blinking ycle ( 1) Fled s in charge error mode Blinking Duty ( 1) Dled Applied to a pin when Rosc=1k % V pin discharge time ( 1) Tdischg Foc=64kHz ms A Adaptor connection detection time ( 1, 2) Tadp Foc=64kHz Vpor<<Vadp Applied when =>Vadp detection ms Tadp2 Applied when =<Vpor detection µs Forced charge time ( 1) Tistart Foc=64kHz ms Forced charge time ( 1) Toff Foc=64kHz ms time ( 1, 3) Tcon Foc=64kHz ms Fast charge start voltage detection time ( 1, 3) completion current detection time ( 1, 4) Recharge start voltage detection time ( 1, 4) Tqstart Foc=64kHz ms Tifc Foc=64kHz ms Trechg Foc=64kHz ms Trickle-charge timer ( 1) Tdchg Valid when Foc=64kHz TMRcnt=Low or Open min Fast-charge timer ( 1) Tchg Valid when Foc=64kHz TMRcnt=Low or Open min Battery overvoltage detection time ( 1,3) Tov Foc=64kHz ms stop temperature detection time ( 1,3) recovery temperature detection time ( 1,3) Tpro Foc=64kHz ms note : 1 The parameter is guaranteed by design. note : 2 The detection time varies depending on the timing of detection for approximately one clock due to the mode transition system operated when matched 4 times in 8ms. note : 3 The detection time varies depending on the timing of detection for approximately one clock due to the mode transition system operated when matched 4 times in 32ms. note : 4 The detection time varies depending on the timing of detection for approximately one clock due to the mode transition system operated when matched 4 times in.

8 Measuring ircuit SW1 I1 V µ 1µ V1 SW92 IF1 I1 VF1 2 Rosc 9 SW91 VF1 SW31 3 RIHG 8 R8 (2.32k) V9 I9 VF9 1.1V(Vstart) or more I3 SW32 V3 V8 VF3 IF3 1k 4 GND TMRcnt 7 I7 VF8 VF7 IF5 V5 SW5 1k 5 VDD TH 6 SW6 VF6 1k SW setting condition Measuring ircuit SW31 SW32 SW5 SW6 SW8 SW91 SW92 SW1 A B D E F

9 Measurement onditions (Except where noted otherwise Ta=~45, =5V) Item Symbol Measurement circuit Measuring conditions Supply current 1 I1 A Supply current 2 ( 1) I2 A Leak current 1 Ileak A Measure the current of I1-I1 when R8=(Irapchg=5mA setting) and IF1=5mA. Measure the current of I1-I1 when R8=(Irapchg=1mA setting) and IF1=1mA. 1. Measure the current of I1 when VF1=V and VF1=4.2V. 2. Measure the current of I1 when VF1=4.8V and VF1=4.25V (charge completion mode). Leak current 1 ( 1) Ileak A 1. Measure the current of I1 when VF1=V and VF1=1.~4.2V. Reset detection voltage Adaptor detection voltage pin discharge current 1 pin discharge current 2 start detection voltage Vpor Vadp Idischg1 Idischg2 Vstart B B B When gradually increasing VF1 from 2.3V to 2.7V under the condition of VF9=3.2V and VF1=3.2V, the VF1 when I9 exceeds 1µA should be Vpor. When gradually increasing VF1 from 2.3V to 4.V under the condition of VF1=3.2V, the VF1 when V3 changes from Low to High should be Vadp. Measure the current of I9 when VF 9=4.5V to 3.2V after being kept under the condition of VF1=3.2V and VF9=4.5V and entering into error mode. Measure the current of I9 immediate after increasing VF1 from 2.3V to 5.V when VF9=3.2V and VF1=3.2V. When gradually increasing VF1 from 1.V to 1.2V under the condition of VF1=.5V, the VF1 when the charging starts ( I1 >1mA) and V3=Low to High should be Vstart. start detection voltage hysteresis Vstarthys When gradually decreasing VF1 from 1.2V to.8v under the condition of VF1=1.5V, the VF1 when the charging stops ( I1 <1mA) and V3=High to Low should be Vstart2. Vstarthys=Vstart-Vstart2 Fast-charge start detection voltage Vqchgon A When gradually increasing VF1 from 2.9V to 3.1V under the condition of VF1=2.5V, the VF1 when I1 exceeds 53mA should be Vqchgon. Fast-charge start detection voltage hysteresis Vqchgonhys A When gradually decreasing VF1 from 3.1V to 2.7V under the condition of VF1=3.5V, the VF1 when I1 falls below 53mA should be Vqchgon2. Vqchgonhys=Vqchgon-Vqchgon2 Recharge detection voltage Vrechg When gradually decreasing VF1 from 4.7V to 3.87V after being kept in the condition of VF1=4.25V and entering into charge completion mode, the VF1 when the charging restarts ( I1 >1mA) and V3=Low to High should be Vrechg. regulation voltage Vchg A stop I/O potential difference 1 Vdef1 A Measure the voltage of V9 in fast charge mode and when IF1= -72mA ( IF1 >Ifc). When gradually decreasing VF1 from 4.1V to 4.V under the condition of fast charge mode, VF1=4.1V, and VF1=4.V, the V1-V1 when the charging stops ( I1 <1mA) should be Vdef1. stop I/O potential difference 2 Vdef2 A When gradually increasing VF1 from 4.V to 4.1V under the condition of fast charge mode, VF1=4.V, and VF1=4.V, the V1-V1 when the charging restarts ( I1 >1mA) should be Vdef2. Battery overvoltage detection voltage Vov When gradually increasing VF1 from 4.27V to 4.43V under the condition of VF1=4.25V, the VF1 when V3 becomes blinking (repeating High Low, charge error mode) should be Vov. note : 1 The parameter is guaranteed by design.

10 Item Symbol Measurement circuit Forced charge current Istart A Measuring circuit Measure the current of I1 immediately after increasing VF1 from 2.3V to 5.V when VF1=3.6V and R8=2.32kΩ. Trickle-charge current Iprechg A Measure the current of I1 when VF1=2.6V and R8=2.32kΩ. Trickle-charge current ( 1) Iprechg( ) A Measure the current of I1 when VF1=Vstart~Vqchgon and R8 = 2.32kΩ. Fast-charge current Irapchg A Measure the current of I1 when VF1=3.6V and R8=2.32kΩ. Fast-charge current ( 1) Irapchg( ) A Measure the current of I1 when VF1=Vqchgon~Vchg, R8=2.32kΩ. Fast-charge current2 Irapchg2 A Measure the current of I1 when VF1=3.6V and R8=1.3kΩ. completion current completion current ( 1) hip temperature detection 1 ( 1) hip temperature detection 2 ( 1) hip temperature detection difference ( 1) Thermal shutdown temperature ( 1) Temperature detecting reference voltage Temperature detecting reference terminal current ( 1) stop temperature detection voltage (Low temperature) stop temperature detection voltage (High temperature) recovery temperature detection voltage (Low temperature) Ifc Ifc( ) Ttreg1 Ttreg2 B B A A When gradually increasing VF9 from 4.1V to 4.2V under the condition of VF9=3.6V and VF1=Vqchgon, the I1 immediately before V3=High to Low and the charging stops ( I1 >1mA) should be Ifc. When gradually increasing VF9 from 4.1V to 4.2V under the condition of VF9=3.6V and VF1>Vqchgon, the I1 immediately before V3=High to Low and the charging stops ( I1 <1mA) should be Ifc. When gradually increasing chip temperature from 83 to 13 under the condition of fast charge mode, VF1=5V, and VF1=4V, the chip temperature when I1 drops to the value that is 1 (I1 when chip temperature is 25 ) 95% should be Ttreg1. When gradually increasing chip temperature from 85 to 12 under the condition of fast charge mode, VF1=5V, and VF1=4V, the chip temperature when I1 drops to the value that is.2(i1 when chip temperature is 125 ) 15% should be Ttreg2. Tdtreg A Tdtreg=Ttreg2 -Ttreg1 Tsd When gradually increasing chip temperature from 143 to 163 under the condition of fast charge mode, VF1=5V, and VF1=4V, the chip temperature when V3 becomes blinking (repeating High Low, charge error mode) and the charging stops ( I1 < 1mA) should be Tsd. VDD D Measure the voltage of V5 when VF6=1.V and VF1=3.6V. IDD VthSL VthSH VthRL note : 1 The parameter is guaranteed by design. D D D D When gradually decreasing IF5 under the condition of VF6=1.V and VF1=3.6V, the IF5 when V5=VDD 9% should be IDD. When gradually increasing VF6 from 1.V to 2.V under the condition of fast charge mode, VF6=1.V, and VF1=3.6V, the VF6 when V3= High to Low and the charging stops ( I1 <1mA) should be VthSL. When gradually decreasing VF6 from 1.V to V under the condition of fast charge mode, VF6=1.V, and VF1=3.6V, the VF6 when V3=High to Low and the charging stops ( I1 <1mA) should be VthSH. When gradually decreasing VF6 from 2.V to 1.V under the condition of charge stop temperature detection mode, VF6=2.V, and VF1=3.6V, the VF6 when V3=Low to High and the charging restarts ( I1 >1mA) should be VthRL.

11 Item recovery temperature detection voltage (high temperature) TMRcnt pin Low-level input voltage TMRcnt pin High-level input voltage TMRcnt pin Low-level input current TMRcnt pin High-level input current output pin Highlevel voltage output pin leak current Series pass Tr On resistance Symbol VthRH Vtmrl Vtmrh Itmrl Itmrh Vledh Iledleak Ron Measurement circuit Blinking ycle ( 1) Fled Blinking Duty ( 1) Dled pin discharge time ( 1) Tdischg D A A A E A B Measuring circuit When gradually increasing VF6 from V to 1.V under the condition of charge stop temperature detection mode, VF6=V, and VF1=3.6V, the VF6 when V3=Low to High and the charging restarts( I1 >1mA) should be VthRH. When gradually decreasing from 5.V to V under the condition of fast charge mode, time reduction mode(see Pin description), VF7=5.V, and VF1=3.6V, the voltage below V3 should be Vtmrl and the voltage exceeding V3 should be VtmrH when V3 becomes blinking(repeating High Low, charge error mode) and the charging stops ( I1 <1mA). Measure the current of I7 under the condition of fast charge mode, VF7=V, and VF1=3.6V. Measure the current of I7 under the condition of fast charge mode, VF7=5V, and VF1=3.6V. Measure the voltage of V3 under the condition of fast charge mode, IF3=-1mA, and VF1=3.6V. Measure the current of I3 when VF3=V and VF1=4.25V (charge completion mode). Measure the voltage of V1-V1 under the condition of fast charge mode, VF1=4.V, and IF1= -2mA. Ron=(V1-V1)/2mA Measure the blinking cycle(repeating High Low) of V3 after being kept under the condition of VF1=4.5V and entering charge error mode. Measure the duty ratio of blinking cycle(repeating High Low) Fled of V3 after being kept in the condition of VF1=4.5V and entering charge error mode. When increasing VF1 from 2.3V to 5.V under the condition of VF9=3.6V and VF1=3.6V, measure the time from when VF1>2.5V(Vpor) to when the current of I9 drops below 1µA. A Adaptor connection detection time ( 1) Tadp 1. After being kept for and more(more than Tpro) under the condition of VF1=3.6V and VF1=2.3V to 3.6V, measure the time from when VF1>3.8V(Vadp) to when V3=Low to High when increasing VF1 from 3.6V to 5.V. 2. When decreasing VF1 from 5.V to 3.6V under the condition of fast charge mode and VF1=3.2V, measure the time from when VF1<3.8V(Vadp) to when the fast charge stops( I1 <1mA). Tadp2 When decreasing VF1 from 5.V to 2.V in fast charge mode and when VF1=3.6V, measure the time from when VF1<2.5V(Vpor) to when V3=High to Low. note : 1 The parameter is guaranteed by design.

12 Item Forced charge time (*1) Forced charge time (*1) Battery voltage detection time (*1) Fast charge start voltage detection time (*1) completion current detection time (*1) Recharge start voltage detection time (*1) Symbol Tistart Toff Tcon Tqstart Tifc Trechg Measurement circuit Trickle-charge timer (*1) Tdchg Fast-charge timer (*1) Tchg F Measuring circuit When increasing VF1 from 2.3V to 5.V under the condition of VF1=3.6V, measure the time from forced charge start( I1 >1mA) to forced charge stop( I1 <1mA). After increasing VF1 from 2.3V to 5.V under the condition of VF1=3.6V, the half time from forced charge stop( I1 <1mA) to fast charge start( I1 >1mA) should be Toff. When decreasing VF1 from 4.25V to 3.8V after charge complete mode under the condition of VF1=4.25V, the half time from when the current of I9 exceeds 1µA to when V3=Low to High and the charging restarts( I1 >1mA) should be Tcon. When increasing VF1 from 2.6V to 3.6V under the condition of trickle charge mode, VF1=2.6V, and R8=2.32kΩ, measure the time from when VF1>3.V(Vqchgon) to when fast charge starts( I1 >53mA). When decreasing IF1 from 8mA to 3mA under the condition of fast charge mode and R8=2.32kΩ, measure the time from when IF1>-56mA(Ifc) to when the charging stops (I1>-1mA). When decreasing VF1 from 4.25V to 3.8V after charge completion mode under the condition of VF1=4.25V, measure the time from when VF1<3.97V(Vrechg) to when the current of I9 exceeds 1µA. When decreasing VF7 from 5.V to V under the condition of trickle charge mode, VF7=5.V, VF1=2.6V, and time reduction mode(see Pin description), measure the time from when VF1<.5V (Vtmr) to when V3 starts blinking(v3=high to Low, charge error mode) and the charging stops( I1 <1mA). Tdchg=Tdchg2 2.34E + 8/19 in time reduction mode due to a TH pin. When decreasing VF7 from 5.V to V under the condition of fast charge mode, VF7=5.V, VF1=3.6V, and time reduction mode(see Pin description), measure Tchg2 that is the time from when VF1<.5V(Vtmr) to when V3 starts blinking(v3=high to Low, charge error mode) and the charging stops ( I1 <1mA). Tchg=Tchg E + 9/137 in time reduction mode due to a TH pin. Battery overvoltage detection time (*1) Tov When increasing VF1 from 3.6V to 4.5V under the condition of fast charge mode and VF1=3.6V, measure the time from when VF1>4.35V(Vov) to when V3 starts blinking (V3=High to Low, charge error mode). stop temperature detection time (*1) Tpro When increasing(decreasing) VF6 from 1.V to 2.V(V) under the condition of fast charge mode, VF6=1.V, and VF1=3.6V, measure the time from when VF6>VthSL(VF6<VthSH) to when V3=High to Low and the charging stops( I1 <1mA). recovery temperature detection time (*1) Tpro When decreasing (increasing) VF6 from 2.V(V) to 1.V under the condition of charge stop detection mode, VF6=2.V(V), and VF1=3.6V, measure the time from when VF6<VthRL(VF6>VthRH) to when V3=Low to High and the charging restarts ( I1 >1mA). note : 1 The parameter is guaranteed by design.

13 Timing hart ( All typ. numeric value) rmal charge Adaptor Voltage Vcc 5V 3.8V 2.5V V Adaptor detection >Vadp(3.8V) Reset detection >Vpor (2.5V) charge start charge completion recharge charge stop(reset) 4.2V 3.97V Battery Voltage 3.V 1.V Forced charge Tistart 512ms charge1 (pre-charge) charge2(fast-charge) V charge charge completion Vo=4.2V charge2 (recharge) charge stop 1..3 Tdischg Tadp 32ms Tpro Toff Tqstart Tdischg Tqstart hip temperature detection (Tjmax<93~13 ) Tifc 256ms Toff Tcon Tdischg Trechg 256ms Tdischg Toff Tcon.1 3µA 2µA (Idischg2) 1µA (Ileak) Pre charge timer (6min) Fast charge timer (3min)

14 Input Adaptor Release Adaptor 3.8V 3.8V 2.5V 2.5V V V 3.6V 3.6V A µA 2µA (Idischg2) 1µA (Ileak) µa (Tpro) 32ms (Tadp) 512ms (Tistart) (Toff) (Tqstart) µa 1. A 3µA 1µA (Ileak) 32ms (Tadp) 64s (Tadp2) 1.1V<<3.V, start (trickle charge) Trickle charge timeup 3.8V 5V 2.5V 2.5V V A 3µA 2µA (Idischg2) 1µA (Ileak) µa 32ms (Tadp) [Forced charge] (Tpro) 512ms (Tistart) (Toff) (Tqstart) [Trickle charge] V <3.V >1.1V µa 1..1 A 3µA 1µA (Idischg1) 1µA(Ileak) [Trickle charge] 6min(Tdchg) [charge stop] charge error mode Blinking1.24s(Fled) 3.V<<4.2V, start (fast charge) Fast charge timeup 3.6V 3.8V 2.5V V 1..3 A 3µA 2µA (Idischg2) 1µA (Ileak) µa 32ms (Tadp) (Tpro) [Forced charge] 512ms (Tistart) (Toff) (Tqstart) [Fast charge] TMRcnt 5V V <4.2V >3.V Timer Reset Timer Start Timer Start [Fast charge] 1. Max.3min 3min(Tchg).1 (Tchg) A 3µA 1µA (Idischg1) 1µA(Ileak) µa 2.V.5V V [External input] [charge stop] charge error mode Blinking1.24s(Fled)

15 <1.1V, start (Battery unconnection) >4.35V, start (battery overvoltage) 3.8V 3.8V 2.5V 2.5V.5V A V µA 2µA (Idischg2) 1µA (Ileak) µa 32ms (Tadp) (Tpro) [Forced charge] 512ms (Tistart) (Toff) [charge stop] Battery unconnection (Tqstart) mode 4.4V V 1..1 A 3µA 2µA (Idischg2) 1µA (Idischg1) 1µA(Ileak) µa 32ms (Tadp) (Tpro) (Tov) [charge stop] error mode Blinking 1.24s(Fled) =4.2V, start (charge completion) 3.8V 2.5V 4.2V V A 3µA 2µA (Idischg2) 1µA (Ileak) µa 32ms (Tadp) (Tpro) [Forced charge] 512ms (Tistart) (Tqstart) (Toff) 256ms (Tifc) (Toff) [charge stop] completion (Tqstart) mode Full charge detection Recharge detection 5.V 5.V V V 4.2V 3.97V A.1 3µA 2µA (Idischg2) 1µA (Ileak) µa [Fast charge] 256ms (Tifc) (Toff) (Tqstart) [charge completion] [ termination] ms (Trechg) A 3µA 2µA (Idischg2) 1µA (Ileak) µa (Toff) (Tcon) [Fast charge]

16 Fast-charge start voltage detection hip temperature detection 5.V V 3.V [Trickle charge] 1..1 A 3µA 2µA (Idischg2) 1µA (Ileak) µa (Tqstart) [Fast charge] hip Temperature V >3.V 1..1 A 3µA 1µA (Idischg1) 1µA(Ileak) µa 13º 93º [Fast charge] hip temperature detection (charge current is controlled to become Tjmax.=93~13 ) Thermal shutdown 5V V >3.V 1..2 A [Fast charge] 3µA 1µA (Idischg1) 1µA(Ileak) µa hip Temperature 153º 13º 93º Blinking 1.24s(Fled) Battery temperature detection 5V V 3.V<<4.2V [Fast charge] [Fast charge] [Fast charge] 1. (Tpro) (Tpro) (Tpro) (Tpro) A 3µA 1µA (Idischg1) 1µA(Ileak) µa Battery Temperature (TH pin) 43º (VDD*.3448) 38º (VDD*.3447) 4º (VDD*.6966) 2º (VDD*.7142)

17 Flow hart A adaptor connection RESET="H" Reset release Vpor(2.5V) RESET="L" Always operation after first charge stop temperature detection Reset detection Vpor(2.5V) stop temperature detection VTH>VthSL(2º) or VTH<VthSH(43º) A adaptor connection detection time ontinue for Tadp(64µs) RESET="H" RESET="L" stop temperature detection time ontinue for Tpro() RESET : hip temperature detection Tj Tsd(153º) Battery overvoltage detection Vov(4.35V) Vov(4.35V) continue for Tov() Vov="H" stop temperature detection charge stop : timer interruption Stop pin discharge error charge stop :Blinking Error detection reset Timer reset pin discharge; Idischg1(1µA) pin discharge; Idischg2(2µA) Tdischg() Adaptor connection detection and stop temperature detection VthSH(43º) VTH VthSL(2º) recovery temperature detection VthRH(38º)<VTH<VthRL(4º) recovery temperature detection time ontinue for Tpro() A adaptor connection detection time ontinue for Tadp(32ms) and stop temperature detection time ontinue for Tpro() : time continue for Tqstart () Forced charge /V charge for Tistart(512ms) Istart (.3)/Vchg(4.2V) Fast charge /V charge Irapchg(1.)/Vchg(4.2V) Forced charge charge stop for Tofft() pin discharge; Idischg2(2µA),Tdischg() Fast charge timer;tdchg(3min) reset start <Vstart (1.1V) Vstart (1.1V) Vqchgon(3.V) Vqchgon(3.V) Vstart-hys(1.V) Vstart-hys (1.V) time continue for Tqstart () time ontinue for Tqstart () completion current Icg Ifc(.1) Battery unconnected stop : Error detection reset Timer reset time continue for Tqstart () Vstart(1.1V) <Vstart-hys(1.V) time continue for Tqstart () Trickle charge /V charge Iprechg(.1)/Vchg(4.2V) Trickle charge timer;tdchg(6min) reset start Vqchgon(3.V) Vstart-hys(1.V) Vqchgon(3.V) time continue for Tqstart () Trickle charge timer ;Tdchg(6min) Reset timer timeout Tchg(3min) Vstart-hys(1.V) time continue for Tqstart () completion current detection time ontinue for Tifc() stop for Toff() pin discharge; Idischg2(2µA),Tdischg() time continue for qstart () Vstart-hys (1.V) timer timeout Tdchg(6min) completion : time continue for Tqstart () Fast charge timer ;Tchg(3min) reset Vstart-hys(1.V) Vrechg (3.97V) time continue for Tqstart () Recharge detection voltage detection time ontinue for Tqstart(256ms) charege stop Toff() pin discharge; Idischg2(2µA),Tdischg() Vstart-hys(1.V) *1 *2 *3 All typ. numeric value. charge current and charge completion current, teach detection time for RIHG=2.32k, ROS=1k. Dotted line is a sequence that always operates after releasing reset. time continue for Tqstart () time continue for Tqstart () Vstart-hys (1.V) completion flag clear :

18 (Except where noted otherwise =5.V, RIHG=2.32kΩ, ROS=1kΩ, Ta=25 ) current - voltage RIHG voltage - current.6 2 current(a) RIHG voltage(v) voltage (V) current (A) Supply current - (=4.V, ) current - (=4.V, ) Supply current(ma) current (µa) (V) (V) current - RIHG external resistor Foc - ROS external resistor 1 12 current(ma) Foc(kHz) RIHG external resistor(k ) ROS external resistor(k ) te : These are typical characteristics.

19 Line Regulation Load Regulation Reguration voltage(v) Ichg=558mA Ichg=1A Ichg=1.5A Regulation voltage (V) (V) current (A) Battery characteristics Battery characteristics Voltage (V) Battery:3.7V/85mAh =5V current (A) Battery:3.7V/85mAh =5V time (min.) time (min.) hip Temperature ontrol Thermal Shutdown Series Pass Tr On Resistance - current current () 1.2 RIHG=43k Series Pass Tr On Resistance ( ) Environmental temperature(º) current(a) note : These are typical characteristics.

20 Temperature Dependency Supply current 1 Supply current Supply current 1 (ma) Supply current 2 (ma) Leak current 1-1 Leak current Leak current 1-1 (µa) 1 1 Leak current 1-2 (µa) Reset detection voltage Adaptor detection voltage Reset detection voltage (V) Adaptor detection voltage (V) te : These are typical characteristics.

21 pin current 1 pin current 2 VSEVSE pin current 1 (µa) VSEVSE pin current 2 (µa) Start detection voltage Start detection voltage hysteresis Start detection voltage (V) Start detection voltage hysteresis (mv) Fast-charge Start detection voltage Fast-charge Start detection voltage hysteresis Fast-charge Start detection voltage (V) Fast-charge Start detection voltage hysteresis (mv) te : These are typical characteristics.

22 Recharge detection voltage Regulation voltage Recharge detection voltage (V) Regulation voltage (V) Stop I/O Potential Difference 1 Stop I/O Potential Difference 2 Stop I/O Potential Difference 1 (mv) Stop I/O Potential Difference 2 (mv) Battery Overvoltage detection voltage Forced Battery Overvoltage detection voltage (V) Forced (ma) te : These are typical characteristics.

23 Trickle-charge current Fast-charge current Trickle-charge current (ma) Fast-charge (ma) ompletion current Temperature Detecting Reference Voltage ompletion current (ma) Temperature Detecting Reference Voltage (V) Stop Temperature Detection Voltage (low temp.) Stop Temperature Detection Voltage (high temp.) Stop Temperature Detection Voltage(VDD*VthSL) (V) Stop Temperature Detection Voltage(VDD*VthSH) (V) te : These are typical characteristics.

24 Recovery Temperature Detection Voltage (Low temp.) Recovery Temperature Detection Voltage (High temp.) Recovery Temperature Detectioin Voltage(VDD*VthRL) (V) Recovery Temperature Detectioin Voltage(VDD*VthRH) (V) TMRcnt pin Low-level input current TMRcnt pin High-level input current 2 12 TMRNT pin Low-level input current (µa) 1-1 TMRNT pin High-level input current (µa) Output pin High-level voltage Output pin Leak current Output pin High-level voltage (V) Output pin Leak current (µa) te : These are typical characteristics.

25 Series Pass Tr On Resistance Blinking cycle Series Pass Tr On Resistance ( ) Blinking cycle (s) Pin Time Forced Time Pin Time (ms) Forced Time (ms) Forced Time Trickle-charge Timer Forced Time (ms) Trickle-charge Timer (ms) te : These are typical characteristics.

26 Fast-charge Timer 34 Fast-charge Timer (ms) te : These are typical characteristics.

27 Application ircuit A adaptor VD GND 6V or lower 47 Input Overvoltage Protection Load Switch in 1µ Rosc 1k [1] Rosc[2] [3] [1] [9] RIHG[8] VDD[5] TMRcnt [7] GND[4] TH[6] RIHG 2.32k 1k OUT 1µ B+ B TH Battery pack 1k (@25º) B value ;338K Lithium-Ion Battery Thermistor SYSTEM INTERFAE SYSTEM SYSTEM INTERFAE We shall not be liable for any trouble or damage caused by using this circuit. In the event a problem which may affect industrial property or any other rights of us or a third party is encountered during the use of information described in these circuit, Mitsumi Electric o., Ltd. shall not be liable for any such problem, nor grant.