Datasheet > BQ76942_V01

BQ76942_V01

更新时间： 2024-01-25 23:04:20

品牌	Logo	应用领域
德州仪器 - TI		电池
页数	文件大小	规格书
83页	3481K
描述
BQ76942 3-Series to 10-Series High Accuracy Battery Monitor and Protector for Li-Ion, Li- Polymer, and LiFePO4 Battery Packs

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中文翻译

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数据手册

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BQ76942_V01 数据手册

BQ76942

www.ti.com

SLUSE14A – DECEMBER 2020 – REVISED FEBRUARY 2021

BQ76942 3-Series to 10-Series High Accuracy Battery Monitor and Protector for Li-

Ion, Li- Polymer, and LiFePO₄Battery Packs

1 Features

2 Applications

•

Battery monitoring capability for 3-series to 10-

series cells

•

Cordless power tools and garden tools

Vacuum cleaners

E-bike, e-scooter, and LEV

Non-military drones

Other industrial battery pack (3-series–10-series)

Integrated charge pump for high-side NFET

protection with optional autonomous recovery

Extensive protection suite including voltage,

temperature, current, and internal diagnostics

Two independent ADCs

3 Description

– Support for simultaneous current and voltage

sampling

– High-accuracy coulomb counter with input

offset error < 1 µV (typical)

– High-accuracy cell voltage measurement

< 10 mV (typical)

Wide-range current applications (±200-mV

measurement range across sense resistor)

Integrated secondary chemical fuse drive

protection

The Texas Instruments BQ76942 is

highly

integrated, high accuracy battery monitor and

protector for 3-series to 10-series Li-ion, Li-polymer,

and LiFePO₄battery packs. The device includes a

high-accuracy

monitoring

system,

highly

configurable protection subsystem, and support for

autonomous or host controlled cell balancing.

Integration includes high-side charge-pump NFET

drivers, dual programmable LDOs for external system

use, and a host communication peripheral supporting

400-kHz I²C, SPI, and HDQ one-wire standards. The

BQ76942 is available in a 48-pin TQFP package.

•

Autonomous or host-controlled cell balancing

Multiple power modes (typical battery pack

operating range conditions)

Device Information

PART NUMBER⁽¹⁾

PACKAGE

BODY SIZE (NOM)

– NORMAL mode: 286 µA

BQ76942xx

PFB (48-pin)

7 mm × 7 mm

– Multiple SLEEP mode options: 24 µA to 41 µA

– Multiple DEEPSLEEP mode options: 9 µA to

10 µA

(1) See the Device Comparison Table for information on the

device family. For all available devices, see the orderable

addendum at the end of the data sheet.

– SHUTDOWN Mode: 1 µA

•

High-voltage tolerance of 85 V on cell connect and

select additional pins

Tolerant of random cell attach sequence on

production line

Support for temperature sensing using internal

sensor and up to nine external thermistors

Integrated one-time-programmable (OTP) memory

programmable by customers on production line

Communication options include 400-kHz I²C, SPI,

and HDQ one-wire interface

PACK+

CHG

DSG

CAN

TRANSCEIVER

5 V

COMM TO

SYSTEM

COMM

REGIN

VC9

REG1

REG2

VDD

3.3 V

VC8

RST_SHUT

DDSG

VC7

DCHG

DFETOFF

CFETOFF

HDQ

MCU

VC6

Dual programmable LDOs for external system

usage

48-pin TQFP package (PFB)

SDA

VC5

SCL

ALERT

VC4

GND

PACKœ

Simplified Schematic

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

Submit Document Feedback

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

Product Folder Links: BQ76942

DATA.

12 3 4 5 6 7...83

中文翻译

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与BQ76942_V01相关器件

型号	品牌	获取价格	描述	数据表
BQ76942_V02	TI	获取价格	BQ76942 3-Series to 10-Series High Accuracy Battery Monitor and Protector for Li-Ion, Li-
BQ7694201PFBR	TI	获取价格	BQ76942 3-Series to 10-Series High Accuracy Battery Monitor and Protector for Li-Ion, Li-
BQ7694202PFBR	TI	获取价格	BQ76942 3-Series to 10-Series High Accuracy Battery Monitor and Protector for Li-Ion, Li-
BQ7694203PFBR	TI	获取价格	BQ76942 3-Series to 10-Series High Accuracy Battery Monitor and Protector for Li-Ion, Li-
BQ7694204PFBR	TI	获取价格	BQ76942 3-Series to 10-Series High Accuracy Battery Monitor and Protector for Li-Ion, Li-
BQ76942PFBR	TI	获取价格	BQ76942 3-Series to 10-Series High Accuracy Battery Monitor and Protector for Li-Ion, Li-
BQ76942XX	TI	获取价格	BQ76942 3-Series to 10-Series High Accuracy Battery Monitor and Protector for Li-Ion, Li-
BQ76952	TI	获取价格	适用于锂离子、锂聚合物和磷酸铁锂电池的 3 节至 16 节串联高精度电池监控器和保护器
BQ7695201PFBR	TI	获取价格	适用于锂离子、锂聚合物和磷酸铁锂电池的 3 节至 16 节串联高精度电池监控器和保护器 \|
BQ7695202PFBR	TI	获取价格	适用于锂离子、锂聚合物和磷酸铁锂电池的 3 节至 16 节串联高精度电池监控器和保护器 \|

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