ACE4702 datasheet(5/15 Pages) ACE

5 / 15 page

ACE4702

2 Cell Li-ion Battery Charger IC

VER 1.1

Electrical Characteristics VCC=15V,TA=-40~85℃, unless otherwise noted.

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Input Voltage Range

VCC

7.5

Undervoltage lockout Threshold

UVLO

4.2

7.3

Operating Current

IVCC

No switching

1.55

2.1

Regulation Voltage

IREG

Constant voltage mode

8.316

8.4

8.484

Current Sense

VCS

VBAT>5.6V*VCSP- VBAT

190

200

210

VBAT>5.6V*VCSP- VBAT

Current into BAT Pin

IBAT

Termination or Sleep

Mode

Precharge Threshold

VPRE

VFB rising

5.4

5.6

5.8

Precharge Threshold Hysteresis

HPRE

VFB falling

0.2

Recharge Threshold

VRE

VFB falling

Overvoltage Trip Level

Vov

VBAT rising

1.06

1.08

1.1

VREG

Overvoltage Clear Level

Vclr

VBAT falling

0.98

1.02

Temp Pin

Pull up Current

Iup

High Threshold

Vthh

TEMP Voltage Rising

1.57

1.61

1.65

Low Threshold

Vthl

TEMP Voltage Falling

0.145

0.175

0.205

CHRG Pin

CHRG Pin Sink Current

ICHRG

VCHRG=1V, charge mode

CHRG Leakage Current

ILK1

VCHRG=25V, termination

mode

DONE Pin

DONE Sink Current

IDONE

VDONE=1V, termination

mode

DONE Leakage Current

ILK2

VDON=25V, charge mode

Oscillator

Switching Frequency

fosc

240

300

360

kHZ

Maximum Duty Cycle

Dmax

Sleep Mode

Sleep Mode Threshold

(measure VCC-VBAT)

VSLP

VCC falling

VBAT=8V

0.06

0.1

0.14

VBAT=12V

0.1

0.14

0.18

VBAT=18V

0.18

0.23

0.28

Sleep mode Release Threshold

(measure VCC-VBAT)

VSLPR

VCC rising

VBAT=8V

0.26

0.32

0.39

VBAT=12V

0.32

0.42

0.52

VBAT=18V

0.38

0.47

0.58

ACE4702 数据表(PDF) 5 Page - ACE Technology Co., LTD.

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