BQ7721609集成電路（IC）的電池管理規(guī)格書PDF中文資料

BQ7721609屬于集成電路（IC）的電池管理。由德州儀器制造生產(chǎn)的BQ7721609電池管理電池管理 PMIC（電源管理集成電路）系列產(chǎn)品可用于電池相關的監(jiān)測和控制功能，包括身份驗證、電池平衡、狀態(tài)監(jiān)測、電量計量、電源選擇、短路保護、過壓和欠壓保護等等。請注意，雖然該系列中的某些產(chǎn)品可能包括電池充電功能，但將充電功能作為主要功能的產(chǎn)品是單獨分類的。

1 Features

? 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 V

? Undervoltage protection with options from 1.0 V to

3.5 V

? Open-wire connection detection

? Overtemperature protection

? Random cell connection

? 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

? Low power consumption ICC ≈ 1 μA

(VCELL(ALL) < VOV)

? Low leakage current per cell input < 100 nA with

open wire detection disabled

? Package footprint options:

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

2 Applications

? Protection for Li-ion battery packs used in:

– Handheld garden tools

– Handheld power tools

– Cordless vacuum cleaners

– UPS battery backup

– Light electric vehicles (eBike, eScooter, pedal

assist bicycles)

3 Description

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 Liion

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).