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PIN FUNCTION DISCREPTION

STDBY (PIN 1):

The completion of battery charging instructions side.

When the battery charge is complete, STDBY pulled low by internal switches, indicating the completion of

charging. In addition, STDBY pin will be in a high-impedance state.

CHRG (PIN 2):

Open-Drain Charge Status Output.

When the battery is charging, the CHRG pin is pulled low by an internal N-channel MOSFET. When the charge

cycle is completed, CHRG pin will be in a high-impedance state.

VPB(PIN3):

Power supply of battery protection

100ohm Resistor & 0.1uF capacitor should be placed as close as possible to VPB pin & BAT-.

Trickle charge Threshold

Voltage

Vtrikl

2.8

2.9

3.0

V

Trickle voltage hysteresis

voltage

Vtrhys

60

80

110

mV

Recharge Battery threshold

Voltage

ΔVrecg V

150

300

mV

CHRG pin Output low

voltage

Vchrg

Ichrg=5mA

0.35

0.6

V

STBY pin Output low voltage

Vstby

Istby=5mA

0.35

0.6

V

Overcharge Detection Voltage

4.25

4.30

4.35

V

Overcharge Release Voltage

4.05

4.10

4.15

V

Overdischarge Detection

Voltage

2.3

2.4

2.5

V

Overdischarge Release Voltage

2.9

3.0

3.1

V

Charger Detection Voltage

-0.06

V

Overdischarge Current1

Detection

3

A

Load Short-Circuiting

Detection

20

A

Equivalent FET on Resistance

40

45

55

mΩ

Overcharge Voltage Detection

Delay Time

130

mS

Overdischarge Voltage

Detection Delay Time

40

mS

Overdischarge

Current

Detection Delay Time

10

mS

Load Short-Circuiting

Detection Delay Time

75

uS