REV 1.1

4

Pin Description

Pin No.

Name

Function Description

1

TEMP

Temperature Sense

Input.

Connecting TEMP pin to NTC thermistor’s

output in Lithium ion battery pack. If TEMP pin’s voltage is below 46% of

temperature is too high or too low, charging is suspended. If TEMP’s voltage

level is above 46% of input supply voltage for more than 0.15S, battery fault

state is released, and charging will resume.

The temperature sense function can be disabled by grounding the TEMP pin.

2

ISET

Constant Charge Current Setting and Charge Current Monitor Pin.

The

When in precharge mode, the ISET pin’s voltage is regulated to 0.2V. When in

constant charge current mode, the ISET pin’s voltage is regulated to 2V. In all

modes during charging, the voltage on ISET pin can be used to measure the

charge current as follows:

3

GND

Ground Terminal.

4

VIN

Positive Input Supply Voltage.

power sleep mode, dropping BAT pin’s current to less than 3uA.

5

BAT

Battery Connection Pin.

Connect the positive terminal of the battery to BAT

pin. BAT pin draws less than 3uA current in chip disable mode or in sleep

mode. BAT pin provides charge current to the battery and provides regulation

voltage of 4.2V.

6

Open-Drain Charge termination Status Output.

In charge termination

status,

is pulled low by an internal switch; Otherwise

pin is in

high impedance state.

7

Open Drain Charge Status Output.

When the battery is being charged, the

pin is pulled low by an internal switch, otherwise

pin is in high

impedance state.

8

FB

Battery Voltage Kevin Sense Input.

This Pin can Kelvin sense the battery

voltage; Also the regulation voltage in constant voltage mode can be adjusted

by connecting an external resistor between FB pin and BAT pin.

Absolute Maximum Ratings

All Terminal Voltage……………－0.3V to 6.5V

M aximum Junction Temperature…...150℃

BAT Short-Circuit Duration………...Continuous

Operating Temperature…...－40℃ to 85℃

Storage Temperature….............－65℃ to 150℃

Thermal Resistance (SOP8)………….TBD

Lead Temperature(Soldering)…….............300℃

Stresses beyond those listed under ‘Absolute Maximum Ratings’ may cause permanent damage to the device. These are stress

ratings only and functional operation of the device at these or any other conditions above those indicated in the operational

sections of the specifications is not implied. Exposure to Absolute Maximum Rating Conditions for extended periods may affect

device reliability.