MITSUMI Li-ion Battery Charge Control IC Monolithic IC ... Li-ion Battery Charge Control IC MM3658AR Pin Description Recommended Operating Conditions (Except where noted otherwise

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MITSUMI Li-ion Battery Charge Control IC MM3658AR

Li-ion Battery Charge Control ICMonolithic IC MM3658AR

Outline

This IC is a linear charge control IC for 1-cell lithium iron phosphate (LiFePO4) battery.The chip temperature detection function can limit the temperature rise in the IC during high power charging and the battery temperature detection function enables the Charging by temperature to be controlled.The package is a small size SSON-10pin.

Features

1. BAT Regulation Voltage 3.6V±30mV(±0.8%)2. Fast Charge Current 558mA±5%(RICHG=2.32k )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 IC. The external resistor enables the charge timer to be set arbitrarily. 5. The chip temperature detection function can limit the temperature rise in the IC during high power charging. It can be charged at an optimal rate.6. The battery temperature detection function with thermistor input enable Charging by temperature to be controlled.7. LED Driver (1ch)

Package

SSON-10A

Applications

1. Shavers2. Portable Devices



Block Diagram

Pin Assignment

Input/outputdifference detection(VCC-BAT<0.045V)

Battery discharge(10uA, 200uA,

300uA)

1uF

VrefAC Adaptor

(5V)

Reset detection(2.5V)

Adaptor detection(3.3V)

VCC

VCC

VCC

VDD REG

REG

VCC

hys

VDD(1.92V)

Vref

Vref

hys

10k

Thermistor10k

(@25°C)High

temperaturedetection

VDD

TH

Fosc[Hz]=0.912V/(1.425E-10*Rosc)

Rosc100k

REG Reset

Timer short

Chip surface temperature

Temperature control

Vccref

Constant current contorl(0.3,1C)

Constant voltage contorl(3.6V)

Charge currentdetection

Charge completiondetection

(0.1C)

Overvoltagedetection

(3.8V)

Richg2.32k

Li-lon

IBAT[A]=Vccref(1.92V)/Richg x 674

Charge startdetection

(1.1V)

x 1 / N

ChargeON/OFF

Vcvref(REG)

Cha

rge

Cur

rent

1C

0.2C

0Ttreg1(93°C)

Tsd(153°C)

Ttreg2(103°C)

Timer short

ROSC

GND

LED

RICHG

VSENSE

BAT

Timer

Charge Control

OSC(64kHz)

TMRcnt

VCC

Rosc

LED

GND

VDD

BAT

VSENSE

RICHG

TMRcnt

TH

(TOP VIEW)

1

2

10

9

8

7

6

3

4

5



Pin Description

Recommended Operating Conditions (Except where noted otherwise Ta=25°C)

Pin No. Pin name Functions

1 VCC Power supply, charge Tr input pin. Connect to an AC adaptor.

2 Rosc

Oscillation frequency setting resistance connection pin fosc=0.912V/(1.425E-10*Rosc) *Estimation : The fosc value for each Rosc value is referred to following characteristics.(Fosc vs. Rosc external resistor)

3 LED LED connect pin (Nch open drain output) Turn on during charging.

4 GND Ground pin

5 VDD

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.

6 TH Battery temperature detection input pin. Connect to a thermistor.

7 TMRcntTimer (trickle charge timer, fast charge timer) ON/OFF control pin.H : Timer stops, L/open : Timer is valid.

8 RICHG

Charge current setting resistance connection pin ICHG=674*1.92V/RICHG *Estimation : The Charge Current value for each RICHG value is referred to following characteristics. (Charge current vs. RICHG external resistor)

9 VSENSEBattery voltage detection, constant voltage charge control pin. Connect to the positive side of a battery pack.

10 BAT Charge Tr output pin. Connect to the positive side of a battery pack.

Absolute Maximum Ratings (Except where noted otherwise Ta=25°C)

Note1 : When mounted on a 40×40×1.6tmm (epoxy glass ,double-sided, copper layer 90%) PC board.

Item Symbol Ratings UnitsStorage Temperature Tstg −55~+150 °C

Operating Temperature Topr −40~+85 °CPin Voltage Vin −0.3~+6.0 V

BAT Pin Output Current IBAT 1.5 ALED Pin Sink Current ILED 20 mA

Power Dissipation Pd 1.94 (Note1) W

Item Symbol Ratings UnitsOperating Temperature Topr 0~+45 °CVCC Operating Voltage Vop 4.0~6.0 V

BAT Output Current Vbop 1.1~3.65 V



Electrical Characteristics (Except where noted otherwise VCC=5.0V, Ta=0~45°C)

Note2 : The parameter is guaranteed by design.

Item Symbol Measurement conditions Min. Typ. Max. Units

Supply Current 1 ICC1 During fast charge (Irapchg=500mA setting) 3.0 4.5 mA

Supply Current 2 (Note2) ICC2 During fast charge (Irapchg=1000mA setting) 3.5 5.2 mA

Leak Current 1 Ileak

Inflow current of BAT/VSENSE pin under the following conditions :

1. BAT (=VSENSE) =3.6V, AC adaptor is unconnected2. charging is completed

1 2 μA

Reset Detection Voltage Vpor Reset when VCC<Vpor 2.3 2.5 2.7 V

ADP Detection Voltage Vadp Charging stops when VCC<Vadp 3.1 3.3 3.5 V

VSENSE Pin Discharge Current 1 Idischg1 VSENSE(=BAT)=3.2V, in charge error mode 10.0 20.0 μA

VSENSE Pin Discharge Current 2 Idischg2 VSENSE(=BAT)=3.2V 100 200 300 μA

Charge Start Detection Voltage

VstartUsed for battery connection detection as well Charging stops when VSENSE (=BAT)<Vstart

1.0 1.1 1.2 V

Charge Start Detection Voltage Hysteresis

VstarthysNot applied to battery voltage detection

immediately after reset release.50 100 150 mV

BAT Regulation Voltage Vchg 3.57 3.60 3.63 V

Charge Stop I/O Potential Difference 1

Vdef1Charge stops when VCC-BAT<Vdef1

VCC=H L 5 30 65 mV


Vdef2Charge stops when VCC-BAT<Vdef2

VCC=L H 5 45 65 mV

Battery Overvoltage Detection Voltage Vov VCC =>Vov+100mV 3.7 3.8 3.9 V

Forced Charge Current Istart RICHG=2.32k , 0.3C (1.0C=Irapchg) 116 167 219 mA

Fast-charge Current IrapchgRICHG=2.32k , 1.0C

BAT=3.2V 530 558 586 mA

Fast-charge Current (Note2) Irapchg(*)RICHG=2.32k , 1.0C

BAT=Vstart~Vchg530 558 586 mA

Fast-charge Current2 Irapchg2RICHG=1.30k , 1.0C

BAT=3.2V1000 mA

Charge Completion Current Ifc RICHG=2.32k , BAT>Vstart 40 56 72 mA

Charge Completion Current (Note2) Ifc(*) RICHG=2.32k , BAT>Vstart 40 56 72 mA

Chip Temperature Detection1 (Note2) Ttreg1 Applied to Tj (chip temperature) 83 93 103 °C

Chip Temperature Detection2 (Note2) Ttreg2 Applied to Tj (chip temperature) 103 °C

Chip Temperature Detection Difference (Note2)

TdtregApplied to Tj (chip temperature)

Ttreg2-Ttreg15 10 15 °C

Thermal Shutdown Temperature (Note2) Tsd Applied to Tj (chip temperature) 143 153 163 °C

Temperature Detecting Reference Voltage VDD VDD pin Output Voltage 1.92 V

Temperature Detecting Reference Terminal Current (Note2)

IDD VDD pin Output Current 3 mA



Item Symbol Measurement conditions Min. Typ. Max. Units

Charge Stop Battery Temperature Detection Voltage (High temperature)

VthSHCharge stop threshold when

TH pin falls (76°C)VDD*0.1123

VDD*0.1193

VDD*0.1266

V

Charge Recovery Battery Temperature Detection Voltage (High temperature)

VthRHCharge recovery threshold when

TH pin rises (76°C)VDD*0.1427

V

TMRcnt pin Low-Level Input Voltage Vtmrl 0.5 V

TMRcnt pin High-Level Input Voltage Vtmrh 2 V

TMRcnt pin Low-Level Input Current Itmrl TMRcnt=0V 1 μA

TMRcnt pin High-Level Input Current Itmrh TMRcnt=5.0V 10 μA

LED Output pin Low-Level Voltage VledL Iled=10mA 0.4 V

LED Output pin Leak Current Iledleak LED=5V -1 +1 μA

Series Pass Tr On Resistance Ron Io=200mA 0.38 0.60

Oscillator Frequency (Note2) Fosc Rosc=100k 57.6 64 70.4 kHz

LED Blinking Cycle (Note2) FledApplied to a LED pin when Rosc=100k and

in charge error mode0.92 1.02 1.13 s

LED Blinking Duty (Note2) Dled Applied to a LED pin when Rosc=100k 30 50 70 %

VSENSE Pin Discharge Time (Note2) Tdischg Fosc=64kHz 58 64 70 ms

AC ADP Connection Detection Time (Note2, 3)

TadpFoc=64kHz, Vpor<VCC<Vadp

Applied when VCC=>Vadp detection24 32 ms

Tadp2 Applied when VCC=<Vpor detection 32 64 96 μs

Forced Charge Time (Note2) Tistart Fosc=64kHz 480 512 544 ms

Forced Charge OFF Time (Note2) Toff Fosc=64kHz 115 128 141 ms

Fast Charge Start Voltage Detection Time (Note2, 4) Tqstart Fosc=64kHz 96 128 ms

Battery Voltage Detection Time (Note2, 4) Tcon Fosc=64kHz 96 128 ms

Charge Completion Current Detection Time (Note2, 5) Tifc Fosc=64kHz 192 256 ms

Fast-charge Timer (Note2) Tchg Valid when Fosc=64kHz, TMRcnt=L, or Open 270 300 330 min

Battery Overvoltage Detection (Note2, 4) Tov Fosc=64kHz 96 128 ms

Charge Stop Battery Temperature Detection Time (Note2, 4)

TproFosc=64kHz

Vth1, VTH=L H or Vth4, VTH=H L96 128 ms

Charge Recovery Battery Temperature Detection Time (Note2, 4)

TproRFosc=64kHz

Vth1R, VTH=H L or Vth4R, VTH=L H

Note2 : The parameter is guaranteed by design.Note3 : 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.Note4 : 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.Note5 : 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 64ms.



Test Circuit

VCC1

2

3

4

5

10

9

8

7

6

1uF 1uF

VF1

I1

I3 V3

V5

V1 V10 I10

V9

V8

I9

I7

SW31

IF3

IF10

VF10

1.1V(Vstart)以上

VF9

VF8

VF6

VF7

IF5

VF3VCC

SW32

SW8

SW6

SW92

SW10

SW91

SW5

R2(100kΩ)

R8(1.93kΩ)

100kΩ

10kΩ

10kΩ

Rosc

LED

GND

VDD

BAT

VSENSE

RICHG

TMRcnt

TH

TEST CIRCUIT SW31 SW32 SW5 SW6 SW8 SW91 SW92 SW10

A

B ×C

D

E

F

G

H ×

• SW setting condition



Parameter Symbol Test Circuit Test Conditions

Supply Current 1 ICC1 AMeasure the current of I1-I10 when R8=(Irapchg=500mA setting) and IF10=500mA.

Supply Current 2 (Note6)

ICC2 AMeasure the current of I1-I10 when R8=(Irapchg=1000mA setting) and IF10=1000mA.

Leak Current 1 Ileak A1. Measure the current of I10 when VF1=0V and VF10=3.6V. (charge completion mode).2. Measure the current of I10 when VF10=3.65V

Leak Current 1 (Note6) Ileak A 1. Measure the current of I10 when VF1=0V and VF10=1.0~3.6V.

Reset Detection Voltage

Vpor BWhen gradually increasing VF1 from 2.3V to 2.7V under the condition of VF9 = 3.2V and VF10 = 3.2V, the VF1 when I9 exceeds 100μA should be Vpor.

ADP Detection Voltage Vadp CWhen gradually increasing VF1 from 2.3V to 3.5V under the condition of VF10 = 3.2V, the VF1 when V3 changes from H L should be Vadp.

VSENSE Pin Discharge Current 1

Idischg1 BMeasure the current of I9 when VF 9 = 4.0V 3.2V after being kept under the condition of VF10 = 3.2V and VF 9 = 4.0V and entering into error mode.

VSENSE Pin Discharge Current 2

Idischg2 BMeasure the current of I9 immediate after increasing VF1 from 2.3V to 5.0V when VF9 = 3.2V and VF10 = 3.2V.

Charge Start Detection Voltage

Vstart CWhen gradually increasing VF10 from 1.0V to 1.2V under the condition of VF10 = 0.5V, the VF10 when the charging starts (|I10| > 1mA) and V3 = H L should be Vstart.

Charge Start Detection Voltage Hysteresis

Vstarthys CVstarthys=Vstart-Vstart2 When gradually decreasing VF10 from 1.2V to 0.8V under the condition of VF10 = 1.5V, the VF10 when the charging stops (|I10| < 1mA) and V3 = L H should be Vstart2. Vstarthys = Vstart-Vstart2

Regulation Voltage BAT

Vchg AMeasure the voltage of V9 in fast charge mode and when IF10 = -72mA (|IF10| > Ifc).


Vdef1 HWhen VF1=3.6V and VF9 = VF10 = 3.5V,fast charge mode, applied to VF8 = 2.5V and gradually decreased to VF1 = 3.6V 3.5V, and V1-V10 when changing to I9<100uA should be Vdef1.


Vdef2 HAfter Vdref1, when VF1 = 3.6V and VF9 = VF10=3.5V,fast charge mode, gradually increased to VF1 = 3.6V 3.5V, and V1-V10 when changing to I9>100μA should be Vdef2. (VF8 = 2.5V is maintained.)

Battery Overvoltage Detection Voltage

Vov CWhen gradually increasing VF10 from 3.67V to 3.9V under the condition of VF10 = 3.65V, the VF10 when V3 becomes blinking (repeating H L, charge error mode) should be Vov.

Forced Charge Current Istart AMeasure the current of I10 immediately after increasing VF1 from 2.3V to 5.0V when VF10 = 3.2V and R8 = 2.32k .

Fast-charge Current Irapchg A Measure the current of I10 when VF10 = 3.2V and R8 = 2.32k .

Fast-charge Current (Note6)

Irapchg (*) AMeasure the current of I10 when VF10 = Vstart~Vchg, R8 = 2.32k .

Fast-charge Current2 Irapchg2 A Measure the current of I10 when VF10 = 3.2V and R8 = 1.30k .

Test Condition (Except where noted otherwise VCC=5.0V, Ta=0~45°C)





Charge Completion Current

Ifc BWhen gradually increasing VF9 from 3.5V to 3.6V under the condition of VF9 = 3.2V and VF10 = Vstart, the |I10| immediately before V3 = L H and the charging stops (|I10| > 1mA) should be Ifc.

Charge Completion Current (Note6)

Ifc(*) BWhen gradually increasing VF9 from 3.5V to 3.6V under the condition of VF9 = 3.2V and VF10 > Vstart, the |I10| immediately before V3 = L H and the charging stops (|I10| < 1mA) should be Ifc.

Chip Temperature Detection 1 (Note6)

Ttreg1 AWhen gradually increasing chip temperature from 83°C to 103°C under the condition of fast charge mode, VF1 = 5V, and VF10 = 3.2V, the chip temperature when I10 drops to the value that is 1C (I10 when chip temperature is 25°C) × 95% should be Ttreg1.

Chip Temperature Detection 2 (Note6)

Ttreg2 AWhen gradually increasing chip temperature from 85°C to 120°Cunder the condition of fast charge mode, VF1 = 5V, and VF10 = 3.2V, the chip temperature when I10 drops to the value that is 0.2C (I10 when chip temperature is 125°C) × 105% should be Ttreg2.

Chip Temperature Detection Difference (Note6)

Tdtreg A Tdtreg = Ttreg2-Ttreg1

Thermal Shutdown Temperature (Note6)

Tsd CWhen gradually increasing chip temperature from 143°C to 163°C under the condition of fast charge mode, VF1 = 5V, and VF10 = 3.2V, the chip temperature when V3 becomes blinking (repeating H L, charge error mode) and the charging stops (|I10| < 1mA)should be Tsd.

Reference Voltage VDD D Measure the voltage of 5V when VF6 = 1.0V and VF10 = 3.2V.

Temperature Detecting Reference Terminal Current (Note6)

IDD DWhen gradually decreasing IF5 under the condition of VF6 = 1.0V and VF10 = 3.2V, the |IF5| when V5 = VDD × 90% should be IDD.

Charge Stop Battery Temperature Detection

Voltage (High temperature)VthSH D

When gradually decreasing VF6 from 1.0V to 0V under the condition of fast charge mode, VF6 = 1.0V, and VF10 = 3.2V, the VF6 when V3 = L H and the charging stops (|I10| < 1mA) should be Vth5.

Charge Recovery Battery Temperature Detection

Voltage (High temperature)VthRH D

When gradually increasing VF6 from 0V to 1.0V under the condition of charge stop temperature detection mode, VF6 = 0V, and VF10 = 3.2V, the VF6 when V3 = H L and the charging restarts (|I10| > 1mA) should be Vth5R.

TMRcnt Pin Low-Level Input Voltage

VtmrlC

When gradually decreasing from 5.0V to 0V under the condition of fast charge mode, time reduction mode (See PIN DESCRIPTION on page 4), VF7 = 5.0V, and VF10 = 3.2V, the voltage below VF7 should be Vtmrl andthe voltage exceeding VF7 should be VtmrH when V3 becomes blinking (repeating H L, charge error mode) and the charging stops (|I10| < 1mA).

TMRcnt Pin High-Level Input Voltage

Vtmrh

TMRcnt Pin Low-Level Input Current

Itmrl AMeasure the current of I7 under the condition of fast charge mode, VF7 = 0V, and VF10 = 3.2V.

TMRcnt Pin High-Level Input Current

Itmrh AMeasure the current of I7 under the condition of fast charge mode, VF7 = 5V, and VF10 = 3.2V.





Output Pin Low-Level Voltage VledL A Measure the voltage of V3 under the condition of fast charge

mode, IF3 = 10mA, and VF10 = 3.2V.LED Output Pin Leak

Current Iledleak E Measure the current of I3 when VF3 = 5V and VF10 = 3.65V (charge completion mode).

Series Pass Tr On Resistance Ron A

Measure the voltage of V1-V10 under the condition of fast charge mode, VF1 = 4.0V, and IF10 = -200mA. Ron = (V1-V10) /200mA

LED Blinking Cycle (Note6) Fled C Measure the blinking cycle (repeating H L) of V3 after being kept

under the condition of VF10 = 4.0V and entering charge error mode.LED Blinking Duty

(Note6) Dled C Measure the duty ratio of blinking cycle (repeating H L) Fled of V3 after being kept in the condition of VF10 = 4.0V and entering charge error mode.

VSENSE Pin Discharge Time (Note6) Tdischg B

When increasing VF1 from 2.3V to 5.0V under the condition of VF9 = 3.2V and VF10 = 3.2V, measure the time from when VF1 > 2.5V (Vpor) to when the current of I9 drops below 100μA.

AC ADP Connection Detection Time

(Note6)

Tadp C

1. After being kept for 128ms and more (more than Tpro) under the condition of VF10 = 3.0V and VF1 = 2.3V 3.1V, measure the time from when VF1 > 3.4V (Vadp) to when V3 = H L when increasing VF1 from 3.1V to 5.0V.

2. When decreasing VF10 from 5.0V to 3.1V under the condition of fast charge mode and VF10 = 3.0V, measure the time from when VF1 < 3.4V (Vadp) to when the fast charge stops (|I10 |< 1mA).

Tadp2 CWhen decreasing VF1 from 5.0V to 2.0V in fast charge mode and when VF10 = 3.0V, measure the time from when VF1 < 2.5V (Vpor) to when V3 = L H.

Forced Charge Time (Note6) Tistart C

When increasing VF1 from 2.3V to 5.0V under the condition of VF10 = 3.2V, measure the time from forced charge start (|I10| > 1mA) to forced charge stop(|I10| < 1mA).

Forced Charge OFF Time (Note6) Toff C

After increasing VF1 from 2.3V to 5.0V under the condition of VF10 = 3.2V, the half time from forced charge stop (|I10| < 1mA) to fast charge start(|I10| > 1mA) should be Toff.

Fast Charge Start Voltage Detection Time (Note6) Tqstart C

When R8 = 2.32k , after increasing VF1 from 2.3V to 5.0V under the condition of VF10 = 3.2V, the half time from forced charge stop (|I10| < 1mA) to fast charge start(|I10| > 1mA) should be Tqstart.

Battery Voltage Detection Time (Note6) Tcon C

When decreasing VF10 from 3.65V to 3.2V after charge complete mode under the condition of VF10 = 3.65V, the half time from when the current of I9 exceeds 100μA to when V3 = L H and the charging restarts (|I10| > 1mA) should be Tcon.

Charge Completion Current Detection Time

(Note6)Tifc F

When decreasing IF10 from -80mA to -30mA under the condition of fast charge mode and R8 = 2.32k , measure the time from when IF10 > -56mA(Ifc) to when the charging stops (I10 > -1mA).

Fast-charge Timer(Note6) Tchg C

When decreasing VF7 from 5.0V to 0V under the condition of fast charge mode, VF7=5.0V, VF10=3.2V, and time reduction mode (See PIN DESCRIPTION), measure Tchg that is the time from when VF10 < 0.5V (Vtmr) to when V3 starts blinking (V3=H L, charge error mode) and the charging stops (|I10| < 1mA).

Battery Overvoltage Detection Time

(Note6)Tov C

When increasing VF10 from 3.2V to 4.0V under the condition of fast charge mode and VF10 = 3.2V, measure the time from when VF10 > 3.8V (Vov) to when V3 starts blinking (V3 = H L, charge error mode).

Charge Stop Battery Temperature Detection

Time (Note6)Tpro C

When decreasing VF6 from 1.0V to 0V under the condition of fast charge mode, VF6 = 1.0V, and VF10 = 3.2V, measure the time from when VF6 <VthSH to when V3 = L H and the charging stops (|I10| < 1mA).

Charge Recovery Battery Temperature Detection

Time (Note6)Tpro C

When increasing VF6 from 0V to 1.0V under the condition of charge stop detection mode, VF6 = 0V, and VF10 = 3.2V, measure the time from when VF6>VthSL) to when V3 = H L and the charging restarts (|I10| > 1mA).




Timing Chart * All typ numeric value.

5V3.8V2.5V

0V

3.6V

1.0V

1.0C

0.3C

300uA

200uA(Idischg2)

1uA(Ileak)

0

Adaptor detection VCC>Vadp(3.8V)Reset detection VCC>Vpor(2.5V)

charge start

AdapterVoltage

VCC

BatteryVoltage

BAT

ChargeCurrent

VSENSEDischarge

Current

Fast chargetimer

(300min)

Fprced charge CC charge(fast-charge)

Chip temperature detection(Tjmax<93~103℃)

CV charge charge completion

Tistart512ms

Tifc256ms

Toff128ms

Toff128ms

Tcon128ms

Tqstar128ms

Tpro128ms

Tadp32ms

Tdischg64ms

Tdischg64ms

Tdischg64ms

Vo=3.60V

charge completion

ONON

OFF

ON

OFF

OFFLED

Normal charge



VSENSEDischargeCurrent

VCC

LED

3.6V

0V

0A

0uA

1.0C

0.3C

2.5V

3.3V

300uA200uA

(Idischg2)1uA

(Ileak)

ON

ONOFF

OFF

64ms(Tdischg)

64ms(Tdischg)

128ms(Tpro)

512ms(Tistart)

128ms(Tqstart)

128ms(Toff)

32ms(Tadp)

0.3C

128ms(Toff)

VCC

BAT

VSENSEDischarge

Current

LED

Charge

300uA

1uA(Ileak)0uA

ON

0A

1.0C

2.5V

0V

5.0V

0.1C

ON

64ms(Tdischg)

64ms(Tdischg)

128ms(Tpro)

32ms(Tadp) 512ms

(Tistard)128ms

(Tqstart)

[Trickle charge][Forced charge]

OFFOFF

200uA(Idischg2)

Current

ChargeCurrent

VCC

BAT

TMRcnt

LED

VSENSEDischarge

Current

5V

0V

1.0C

0A

0uA

0.1C

BAT<3.6VBAT>1.1V

ONON

[Input]

Blinking 1.024s(Fled)

Timer StartTimer StartTimer Reset

[Fast charge]

Max.300min(Tchg)

300min(Tchg)

[charge stop]charge error mode

OFF

300uA

2.0V0.5V0V

10uA(Idischg1)1uA(Ileak)

VCC


LEDON

ON

OFFOFF

2.5V

3.3V

3.6V

0V

0A

1.0C

300uA

1uA(Ileak)

0uA

32ms(Tadp)

64us(Tadp2)

ChargeCurrent

VCC

BAT

LED

VSENSEDischarge

Current

5.0V

0.5V

0V

1.0C

0A

0uA

0.3C

ON

ONOFF

OFF OFF

300uA200uA

(Idischg2)1uA

(Ileak)

[Forced charge] [charge stop]Battery

unconnectionmode

32ms(Tadp)

128ms(Tpro)

128ms(Toff)

128ms(Tqstart)

512ms(Tistart)

64ms(Tdischg)

64ms(Tdischg)

ChargeCurrent

VCC

BAT

LED

VSENSEDischarge

Current

5.0V

0V

3.6V1.0C

0.1C0A

0uA

0.3C

ON

ONOFF

OFF OFF

300uA200uA

(Idischg2)1uA

(Ileak)

128ms(Tpro)

128ms(Toff)

128ms(Toff)

64ms(Tdischg)

64ms(Tdischg)

64ms(Tdischg)

[Forced charge] [charge stop]Charge

completionmode

32ms(Tadp) 128ms

(Tqstart)128ms

(Tqstart)256ms(Tifc)

512ms(Tistart)

Input Adaptor

1.1V<BAT<3.6V, Charge Start (Fast Charge)

BAT<1.1V, Charge Start (Battery Unconnection) BAT=3.6V, Charge Start (Charge Completion)

fast Charge Timeup

Release Adaptor



ChargeCurrent

VCC

BAT

LED

0uA

ON

0A

1.0C

3.8V

0V

5.0V

0.1C

OFFOFF

1.024(Fled)Blinking


300uA


200uA(Idischg2)

[charge stop]Charge error mode

128ms(Tpro)

32ms(Tadp)

64ms(Tdischg)

128ms(Tov)

ChargeCurrent

VCC

BAT

LED

VSENSEDischarge

Current

5.0V

0V

3.6V

0.1C

0A

0uA

ON

ON

OFF

OFF

300uA200uA

(Idischg2)

1uA(Ileak)

[Fast charge] [charge completion]

128ms(Tqstart)

256ms(Tifc)

128ms(Toff)

64ms(Tdischg)

ChargeCurrent

VCC

BAT

LED

ChipTemperature

VSENSEDischarge

Current

5.0V

BAT>0.3V

0V

1.0C

0A

0uA

0.1C

ONON

OFF

300uA

103°C93°C


[Fast charge]

Chip temperature detection(charge current is contorlledto become Tjmax<93~103℃)

LED

BAT

VCC

300uA

0uA

75℃（VDD＊0.1228）

1.1V＜BAT＜3.6V

70℃（VDD＊0.1427）

10uA（Idischg1）

1uA(Ileak)

ON

0A

1.0C

0V5V

ONON

OFF

BatteyTemperature（TH pin）

VSENSEDischarge

Current

ChargeCurrent

[Fast charge] [Fast charge]

128ms(Tpro)

128ms(Tpro)

ChargeCurrent

VCC

CVVoltage

LED

BatteryTemperature

(TH pin)

VSENSEDischarge

Current

5V

0.1C<Io<1.0C

0V3.60V

1.0C

0A

ONON ON

OFF

300uA

0uA

75°C(VDD*0.1228)70°C(VDD*0.1427)


128ms(Tpro)

128ms(Tpro)

ChargeCurrent

VCC

BAT

LED

ChipTemperature

VSENSEDischarge

Current

5V

BAT>0.3V

0V

1.0C

0A0.2C

ONON

OFF

300uA

0uA

103°C

153°C

93°C


Blinking 1.024s(Fled)

[Fast charge]

BAT>3.8V, Charge Start (Battery Overvoltage)

Chip Temperature Detection

Battery Temperature Detection (Constant Current Mode) Battery Temperature Detection (Constant Voltage Mode)

Thermal Shutdown

Full Charge Detection



Flow Chart

AC adaotor

ResetLED:OFF

Reset releaseVcc>Vpor(2.5V)Adaptor

Detection timeTadp2(64us)

Vsense pin dischargeIdischg2(200uA)T dischg(64ms)

Adaptor connection detectionVCC≧Vadp(3.8V)

Detection time:Tadp(32ms)

ACharge StartLED:Lighting

Forced charge ONIstart(0.3C)/V chg(4.2V)

/Tistart(512ms)

Forced charge ONT off(128ms)

VSENSE pin dischargeIdischg2(200uA)/T dischg(64ms)

Battery voltage detectionVBAT≧Vstart(1.1V)

T qstart(128ms)

Battery unconnectedCharge stop

LED:OFFTimer Reset

Error detection reset

Battery unconnectedor over discharge

Charge stopLED:OFF

Battery voltage checkVBAT≧Vstart-hys(1.0V)

Detection time:T qstart(128ms)

Tchg(300min)Time out

Fast-Charge modeIrapchg(1.0C)/Vchg(4.2V)

T chg(300min)Start

Charge OFFT off(128ms)

VSENSE pin dischargeIdischg2(200uA)/T dischg(64ms)

Charge current detectionIchg≧Ifc(0.1C)Detection time:

Tifc(128ms)

Battery voltagecheck VBAT≧Vstart(1.1V)

Detection time:T qstart(128ms)

Timer ResetError detection reset

Charge completionLED:OFF

T chg(300min)Timer Reset

Battery voltage detectionVBAT≧Vstart(1.1V)

T qstart(128ms) Charge Error Charge OFFLED:Blinking

VSENSDE pin dischargeIdischg1(10uA)

Timer resetError reset

AC adaptorPull out

connection

Yes

Yes

Yes

No

No

No

No

No

No

Yes

Yes

Yes

No

No

※1　　All typ. numeric value.※2　　Charge current, charge completion current and　　　　 each detection time for RICHG=2.32kΩ, ROSC=100kΩ.



After reset releaseAlways works

Reset detectionVCC≦V por(2.5V)

Detection time:Tadp2(64us)

Over charge detectionVBAT≧Vov(4.35V)

Detection time:Tov(128us)

Chip temperature detectionTj>Tsd(153℃）

Charge ErrorCharge OFFLED:Blinking

VSENSE pin dischargeIdischg1(10uA)

After charge startAlways works

After adaptor connectionAlways works

Charge stopBattery temperature detection

&TH pin open checkVthSH(76℃)<VTHor TH pin=OpenDetection time:Tpro(128ms)

Charge stop temperature detection

Charge stipLED:OFF

Charge recovery battery temperature detection

&TH pin open checkVthSH(76℃)>VTHor TH pin ≠OpenDetection time:Tpro(128ms)

Timer interruptionStop VSENSE pin discharge

Battery voltage detectionVBAT<Vstart-hys(1.0V)

Detection time:Tqstart(128ms)

Battery unconnectedor over discharge

Charge stopLED:OFF

Reset LED:OFF

Yes Yes Yes

Yes

No No No

No

Yes

Yes

No

No

≦

※1 All typ. numeric value.※2 Charge current, charge completion current and　　　　 each detection time for RICHG=2.32kΩ, ROSC=100kΩ.



Characteristics (Except where noted otherwise VCC=5.0V, RICHG=2.32k , ROSC=100k , Ta=25°C)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

■ Charge current vs.BAT voltage

Cha

rge

curre

nt [A

]

　BAT voltage [V]

1 0 3 4 5

Charge current may be reduced by thermalregulationdependingon heat dissipationcondition of products.

■ RICHG voltage vs. Charge current

RIC

HG

vol

tage

[V]

Charge current[A]

　0.0　0.0

　0.4

　0.8

　1.2

　1.6

　2

　0.1　0.2 　0.3 　0.4　0.5　0.6　0.7 　0.8

■ Supply current vs. VCC

Supp

ly c

urre

nt[m

A]

VCC[V]

500

0.4

0.8

1.2

1.6

2

1 2 3 4

■ Charge current vs. RICHG external resistor

　RICHG external resistor[kΩ]

　1　0

　200

　400

　600

　800

　1000

　2 　3 　4 　5 　6 　7

Cha

rge

curre

nt [m

A]

■ VSENSE current vs. VCC

VCC[V]

-0.2

0.0

1 2 3 4 50

0.2

0.4

0.6

0.8

1.0

1.2

1.4

VSEN

SE c

urre

nt [u

A]

■ Fosc vs. Rosc external resistor

Fosc

[kH

Z]

ROSC external resistor[kΩ]

100

20

40

60

80

100

100 1000



■ Line Regulation

VCC[V]

　3.0　3.1

　3.2

　3.3

　3.4

　3.5

　3.6

　3.7

　3.8

　3.5 　4.0 　4.5 　5.0 　5.5 　6.0

BAT

Reg

ulat

ion

volta

ge[V

]

Ichg=558mAIchg=1AIchg=1.5A

■ Load Regulation

Charge current[A]

3.570.2 0.4 0.6 0.8 1.21 1.4

3.58

3.59

3.60

3.61

3.62

3.63

BAT

Reg

ulat

ion

volta

ge[V

]

■ Chip Temperature Control ･ Thermal Shutdown

Cha

rge

Cur

rent

[C]

Environmental Temperature [℃]

16014012010080604020

0.2

0

0.4

0.6

0.8

1

1.2

■ Series Pass Tr On Resistance vs. Charge current

Charge current[A]

00.0

0.1

0.2

0.3

0.4

0.5

0.6

0.2 0.4 0.6 0.8 1

Serie

s Pas

s Tr O

n Re

sista

nce

[Ω]



■ Supply current 1

Supp

ly c

urre

nt 1

[mA]

Temperature[℃]

0.0

1.0

2.0

3.0

4.0

5.0

-20-40 0 20 40 60 80

■ Supply current 2

Supp

ly c

urre

nt 2

[mA]

Temperature[℃]

-400.0

1.0

2.0

3.0

4.0

5.0

-20 0 20 40 60 80

■ Leak current 1-1

Temperature[℃]

-40-2

-1

0

1

2

-20 0 20 40 60 80

Leak

cur

rent

[uA]

■ Reset detection voltage

Temperature[℃]

-402.2

2.3

2.4

2.5

2.6

2.7

2.8

-20 0 20 40 60 80

Res

et d

etec

tion

volta

ge[V

]

■ Leak current 1-2Le

ak c

urre

nt 1

-2[u

A]

Temperature[℃]

-400.0

0.5

1.0

1.5

2.0

-20 0 20 40 60 80

■ Adaptor detection voltage

Temperature[℃]

3.0

3.1

3.2

3.3

3.4

3.5

3.6

-20-40 0 20 40 60 80

Adap

tor d

etec

tion

volta

ge[V

]

Temperature Dependency



VSEN

SE p

in D

isch

arge

cur

rent

1[u

A]

Temperature[℃]

-40 -20 00

5

10

15

20

25

20 40 60 80

■ VSENSE pin Discharge current 1 ■ VSENSE pin Discharge current 2

VSEN

SE p

in D

isch

arge

cur

rent

2[u

A]

Temperature[℃]

-4050

100

150

200

250

300

350

-20 0 20 40 60 80

■ Charge Start detection voltage

Cha

rge

Star

t det

ectio

n vo

ltage

[V]

Temperature[℃]

0.9

1.3

1.2

1.1

1.0

-20-40 0 20 40 60 80

70

60

50

40

30

20

10

0-40 -20

■ Charge Stop I/O Potential Difference 1

Cha

rge

Stop

I/O

Pot

entia

l D

iffer

ence

1[m

V]

0 20

Temperature [℃]

40 60 80

■ Charge Start detection voltage hysteresis

Char

ge S

tart d

etecti

on vo

ltage

hyste

resis

[mV]

Temperature[℃]

-40 -20 00

50

100

150

200

20 40 60 80

70

60

50

40

30

20

10

0-40 -20

■ Charge Stop I/O Potential Difference 2

Cha

rge

Stop

I/O

Pot

entia

l D

iffer

ence

2 [m

V]

0 20

Temperature [℃]

40 60 80



3.66

3.64

3.62

3.60

3.58

3.56

3.54-40 -20

■ BAT Regulation voltageBA

T R

egul

atio

n vo

ltage

[V]

0 20

Temperature [℃]

40 60 80 -40 -20 0 20

Temperature [℃]

40 60 80

■ Battery Overvoltage detection voltage

Batte

ry O

verv

olta

ge

dete

ctio

n vo

ltage

[V]

3.90

3.85

3.80

3.75

3.70

250

200

150

100

50-40 -20

■ Forced Charge Current

Forc

ed C

harg

e C

urre

nt[m

A]

0 20

Temperature [℃]

40 60 80

80

70

60

50

40

30-40 -20

■ Charge Completion current

Cha

rge

Com

plet

ion

curre

nt[m

A]

0 20

Temperature [℃]

40 60 80

600

580

560

540

520-40 -20

■ Fast-charge current

Fast

-cha

rge

curre

nt[m

A]

0 20

Temperature [℃]

40 60 80

2.00

1.95

1.90

1.85

1.80-40 -20

■ Temperature Detection Reference voltage

Tem

pera

ture

Det

ectio

nR

efer

ence

vol

tage

[V]

0 20

Temperature [℃]

40 60 80



0.15

0.14

0.13

0.12

0.11

0.10-40 -20

■ Charge Recovery Batt TemperatureDetection VoltageCh

arge

Rec

over

y Batt

Tem

pera

ture D

etecti

on

Volta

ge V

DD＊

VthS

H[V]

0 20

Temperature [℃]

40 60 80

0.17

0.16

0.15

0.14

0.13

0.12-40 -20

■ Charge Recovery Batt Temperature Detection Voltage

Char

ge R

ecov

ery B

att T

empe

ratur

e Dete

ction

Volt

age V

DD＊

VthR

H[V]

0 20

Temperature [℃]

40 60 80

2.0

1.0

0.0

-1.0

-2.0-40 -20

■ TMRcnt pin Low-level input current

TMR

cnt p

in L

ow-le

vel

inpu

t cur

rent

[uA]

0 20

Temperature [℃]

40 60 80

0.7

0.6

0.5

0.4

0.3

0.2-40 -20

■ LED Output pin Low-level voltage

LED

Out

put p

in L

ow-le

vel v

olta

ge[V

]

0 20

Temperature [℃]

40 60 80

-40 -20 0 20

Temperature [℃]

40 60 80

■ TMRcnt pin High-level input current

12.0

10.0

8.0

6.0

4.0

2.0

0.0

TMR

cnt p

in H

igh-

leve

l in

put c

urre

nt [u

A]

2.0

1.0

0.0

-1.0

-2.0-40 -20 0 20

Temperature [℃]

40 60 80

■ LED Output pin Leak current

LED

Out

put p

in L

eak

curre

nt [u

A]



0.6

0.5

0.4

0.3

0.2

0.1-40 -20

■ Series Pass Tr On ResistanceSe

ries

Pass

Tr O

n R

esis

tanc

e[Ω

]

0 20

Temperature [℃]

40 60 80

1.3

1.2

1.1

1.0

0.9

0.8-40 -20

■ LED Blinking cycle

LED

Blin

king

cyc

le[s

]

0 20

Temperature [℃]

40 60 80

80

75

70

65

60

55

50-40 -20

■ VSENSE Pin Discharge Time

VSEN

SE P

in D

isch

arge

Tim

e[m

s]

0 20

Temperature [℃]

40 60 80

160

150

140

130

120

110

100-40 -20

■ Forced Charge OFF Time

Forc

ed C

harg

e O

FF T

ime[

ms]

0 20

Temperature [℃]

40 60 80

620

580

540

500

460

420-40 -20

■ Forced Charge Time

Forc

ed C

harg

e Ti

me[

ms]

0 20

Temperature [℃]

40 60 80

340

320

300

280

260

240-40 -20

■ Fast-charge Timer

Fast

-cha

rge

Tim

er[m

s]

0 20

Temperature [℃]

40 60 80



AC

VDC

GND

6V以下470k

Cin1uF

Rosc100k

VCC[1]Rosc[2]

MM3658LED[3]

GND[4]

VDD[5]

BAT[10]VSENSE[9]

RICHG[8]

TH[6]TMRcnt

[7]

Input Overvoltage ProtectionLoad Switch

ADAPTOR

Cout1uF

System-path at adaptorconnection

System-path at adaptornonconnection

Battery packB+

B-

TH

RICHG2.32k

10k

Li-ionBattery

IN SYSTEMINTERFACE

SYSTEM

Thermistor

10k(@25℃)B 定数；3380K

GNDSYSTEM

INTERFACE

· 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, we shall not be liable for any such problem, nor grant a license therefore.

Application Circuit

Documents

MITSUMI Li-ion Battery Charge Control IC Monolithic IC ... Li-ion Battery Charge Control IC MM3658AR Pin Description Recommended Operating Conditions (Except where noted otherwise