Datasheet > BQ77216_V01

BQ77216_V01

更新时间： 2022-06-24 15:39:40

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
23页	978K
描述
BQ77216 Voltage and Temperature Protection for 3-Series to 16-Series Cell Li-Ion Batteries with Internal Delay Timer

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BQ77216_V01 数据手册

BQ77216

www.ti.com

SLUSE36 – AUGUST 2020

BQ77216 Voltage and Temperature Protection for 3-Series to 16-Series Cell Li-Ion

Batteries with Internal Delay Timer

1 Features

3 Description

•

3-series cell to 16-series cell protection

High-accuracy over voltage protection

– ± 10 mV at 25°C

– ± 20 mV from 0°C to 60°C

Overvoltage protection options from 3.55 V to 5.1

Undervoltage protection with options from 1.0 V to

3.5 V

Open-wire connection detection

Overtemperature protection

Random cell connection

The BQ77216 family of products provides a range of

voltage and temperature monitoring including

overvoltage (OVP), undervoltage (UVP), open wire

(OW), and overtemperature (OT) protection for li-ion

battery pack systems. Each cell is monitored

independently for overvoltage, undervoltage, and

open-wire conditions. With the addition of an external

NTC thermistor, the device can detect

•

overtemperature conditions.

•

In the BQ77216 device, an internal delay timer is

initiated upon detection of an overvoltage,

undervoltage, open-wire, or overtemperature

condition. Upon expiration of the delay timer, the

respective output is triggered into its active state

(either high or low, depending on the configuration).

Functional safety-capable

Fixed internal delay timers

Fixed detections thresholds

Fixed output drive type for each of COUT and

DOUT

– Active high or active low

– Active high drive to 6 V

– Open drain with ability to be pulled up

externally to VDD

The overvoltage triggers the COUT pin if a fault is

detected, and undervoltage triggers the DOUT pin if a

fault is detected. If an overtemperature or open-wire

fault is detected, then both the DOUT and COUT will

be triggered. For quicker production-line testing, the

BQ77216 device provides a Customer Test Mode

(CTM) with greatly reduced delay time.

•

Low power consumption I_CC≈ 1 µA

(V_CELL(ALL)< V_OV

)

Device Information Table

Low leakage current per cell input < 100 nA with

open wire detection disabled

Package footprint options:

PART NUMBER

PACKAGE

BODY SIZE (NOM)

4.40 mm x 7.80 mm

(6.40 mm x 7.80 mm,

including leads)

BQ7721600⁽¹⁾

TSSOP (24)

– Leaded 24-pin TSSOP with 0.65-mm lead pitch

2 Applications

(1) Contact TI for more information.

PACK+

Fuse or

Back-to-Back FETs

•

Protection for li-ion battery packs used in:

– Handheld garden tools

C_VD

– Handheld power tools

VDD

– Cordless vacuum cleaners

– UPS battery backup

R_IN

V16

C_IN

DOUT

– Light electric vehicles (eBike, eScooter, pedal

assist bicycles)

R_IN

C_IN

VSS

R_DOUT

GND

COUT

R_COUT

R_NTC

PACK-

GND

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. ADVANCE INFORMATION for preproduction products; subject to change

Submit Document Feedback

without notice.

Product Folder Links: BQ77216

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与BQ77216_V01相关器件

型号	品牌	描述	获取价格	数据表
BQ77216_V02	TI	BQ77216 Voltage and Temperature Protection for 3-Series to 16-Series Cell Li-Ion Batteries	获取价格
BQ77216_V03	TI	BQ77216 Voltage and Temperature Protection for 3-Series to 16-Series Cell Li-Ion Batteries	获取价格
BQ77216_V04	TI	BQ77216 Voltage and Temperature Protection for 3-Series to 16-Series Cell Li-Ion Batteries	获取价格
BQ7721600	TI	BQ77216 Voltage and Temperature Protection for 3-Series to 16-Series Cell Li-Ion Batteries	获取价格
BQ7721600PWR	TI	BQ77216 Voltage and Temperature Protection for 3-Series to 16-Series Cell Li-Ion Batteries	获取价格
BQ7721602	TI	BQ77216 Voltage and Temperature Protection for 3-Series to 16-Series Cell Li-Ion Batteries	获取价格

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