SC8261G datasheet(4/9 Pages) SILAN

4 / 9 page

SC8261G

HANGZHOU MICROELECTRONICS CO.,LTD

REV:1.3

2008.09.01

Http:// www.silan.com.cn

Page 4 of 10

Release of Power-down mode

A charger is connected while the battery remains in Power-down mode. If VCH<VCSI<VOI2 and VDD<VODR

occur, M1 is still off but it releases Power-down mode. If VDD>VODR occurs, M1 is to be turned on and back to

normal status.

Charger Detection

If a charger is connected to the battery remained in Power-down mode, the voltages will become VCSI<VCH

and VDD>VODL. M1 is to be turned on and back to normal status.

Abnormal Charging Status

If a charger is connected to the battery in normal status, VCSI<VCH occurs over a delay time longer than TOC,

M2 is to be turned off.

Over Current/Short Current Detection

When the discharging current is too large during discharging under normal status and the voltage detected

from CSI is larger than VOIX (VIO1 or VIO2) for over a certain delay time TOIX (TIO1 or TIO2), it means the over

current/short current status occurred. M1 is turned off. CSI is pulled to VSS by way of an internal resistor RCSIS.

Release of Over Current/Short Current Status

While the protection IC remains in Over Current/Short Current status and load is removed or the impedance

between VBAT+ and VBAT- is larger than 500K

Ω and VCSI<VOI1, M1 is to be turned on and back to normal status.

Note: when a battery is connected to a protection IC for the first time, the IC may not enter the normal status (not

dischargeable status). If this occurs, set the CSI pin voltage equal to the VSS voltage (short the CSI and

VSS pins or connect a charger) to enter the normal status.

SC8261G Datasheet(PDF) 4 Page - Silan Microelectronics Joint-stock