Datasheet > BQ296233DSGR

BQ296233DSGR

更新时间： 2024-11-24 02:44:39

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
31页	2647K
描述
BQ296xxx Overvoltage Protection for 2-Series, 3-Series, and 4-Series Cell Li-Ion Batteries with Regulated Output Supply

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BQ296233DSGR 数据手册

BQ2961, BQ2962

SLUSBU5P – NOVEMBER 2013 – REVISED AUGUST 2021

BQ296xxx Overvoltage Protection for 2-Series, 3-Series, and 4-Series Cell

Li-Ion Batteries with Regulated Output Supply

1 Features

3 Description

•

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

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.

•

Regulated supply output with self-disable and/or

external enable/disable control

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.

– 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 I_CC~ 4 µA

•

(V_CELL(ALL)< V_PROTECT

)

Extra low power consumption with reg output

disabled, I_CC~ 1.2 µA

Low leakage current per cell input < 100 nA

Small package footprint

•

– 8-Pin WSON (2 mm × 2 mm)

Device Information

PART NUMBER⁽¹⁾

BQ2961

PACKAGE

BODY SIZE (NOM)

2 Applications

•

Notebook PC

Ultrabooks

Medical

WSON (8)

2.00 mm × 2.00 mm

BQ2962

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

UPS battery backup

Pack +

Protector

FETs

100 Ω

OUT

REG

VDD

External

Circuit

e.g., RTC

1 kΩ

5 ꢀ (*)

0.1µF

VCELL4

VCELL3

1 kΩ

VSS

* can be removed if Vss will be

connected first during cell

connection

PWPD

VCELL2

VCELL1

1 kΩ

0.1µF

0.47 µF

0.1µF

Pack œ

Simplified Schematic

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION

DATA.

12 3 4 5 6 7...31

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与BQ296233DSGR相关器件

型号	品牌	获取价格	描述	数据表
BQ296234DSGR	TI	获取价格	适用于 2 节、3 节和 4 节串联锂离子电池的过压保护 \| DSG \| 8 \| -40
BQ2970	TI	获取价格	锂离子/锂聚合物高级单节电池保护器 IC 系列
BQ2970_V01	TI	获取价格	BQ297xx Cost-Effective Voltage and Current Protection Integrated Circuit for Single-Cell L
BQ2970_V02	TI	获取价格	BQ297xx Cost-Effective Voltage and Current Protection Integrated Circuit for Single-Cell L
BQ29700	TI	获取价格	BQ297xx Cost-Effective Voltage and Current Protection Integrated Circuit for Single-Cell L
BQ29700DSER	TI	获取价格	锂离子/锂聚合物高级单节电池保护器 IC 系列 \| DSE \| 6 \| -40 to 85
BQ29700DSET	TI	获取价格	锂离子/锂聚合物高级单节电池保护器 IC 系列 \| DSE \| 6 \| -40 to 85
BQ29701	TI	获取价格	BQ297xx Cost-Effective Voltage and Current Protection Integrated Circuit for Single-Cell L
BQ29701DSER	TI	获取价格	锂离子/锂聚合物高级单节电池保护器 IC 系列 \| DSE \| 6 \| -40 to 85
BQ29701DSET	TI	获取价格	锂离子/锂聚合物高级单节电池保护器 IC 系列 \| DSE \| 6 \| -40 to 85

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