1 Features

• 2-series, 3-series, and 4-series cell overvoltage

protection (OVP)

• Fixed delay timer to trigger FET drive output

(3-s, 4-s, 5.5-s, or 6.5-s options)

• Factory programmed OVP threshold (threshold

range 3.85 V to 4.6 V)

• Output options: active high

• High-accuracy overvoltage protection:

±10 mV

• Regulated supply output with self-disable and/or

external enable/disable control

– Options: 3.3 V, 2.5 V, and 1.8 V (BQ2961)

– Options: 3.3 V, 3.15 V, 3.0 V (BQ2962)

• Low power consumption ICC ~ 4 μA

(VCELL(ALL) < VPROTECT)

• Extra low power consumption with reg output

disabled, ICC ~ 1.2 μA

• Low leakage current per cell input < 100 nA

• Small package footprint

– 8-Pin WSON (2 mm × 2 mm)

2 Applications

• Notebook PC

• Ultrabooks

• Medical

• UPS battery backup

3 Description

The BQ296xxx family is a high-accuracy, low-power

overvoltage protector with a 2-mA regulated output

supply for Li-ion battery pack applications.

Each cell in a 2-series to 4-series cell stack is

individually monitored for an overvoltage condition. An

internally fixed-delay timer is initiated upon detection

of an overvoltage condition on any cell. Upon

expiration of the delay timer, an output pin is triggered

into an active state to indicate that an overvoltage

condition has occurred.

The regulated output supply delivers up to 2-mA

(max) output current to drive always-on circuits, such

as a real-time clock (RTC) oscillator. The BQ296xxx

family has a self-disable function to turn off the

regulated output if any cell voltage falls below a

certain threshold, thereby preventing drain on the

battery, and provides an external control to enable or

disable the regulated output.

BQ296111DSGT属于集成电路（IC） > 电池管理。美国德州仪器公司制造生产的BQ296111DSGT电池管理电池管理 PMIC（电源管理集成电路）系列产品可用于电池相关的监测和控制功能，包括身份验证、电池平衡、状态监测、电量计量、电源选择、短路保护、过压和欠压保护等等。请注意，虽然该系列中的某些产品可能包括电池充电功能，但将充电功能作为主要功能的产品是单独分类的。