BQ29728集成電路（IC）的電池管理規(guī)格書PDF中文資料

BQ29728屬于集成電路（IC）的電池管理。由德州儀器制造生產(chǎn)的BQ29728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

? Input voltage range pack+: VSS – 0.3V to 12V

? FET drive:

– CHG and DSG FET drive output

? Voltage sensing across external FETs for

overcurrent protection (OCP) is within ±5mV

(typical)

? Fault detection

– Overcharge detection (OVP)

– Over-discharge detection (UVP)

– Charge overcurrent detection (OCC)

– Discharge overcurrent detection (OCD)

– Load short-circuit detection (SCP)

? Zero voltage charging for depleted battery

? Factory programmed fault protection thresholds

– Fault detection voltage thresholds

– Fault trigger timers

– Fault recovery timers

? Modes of operation without battery charger

enabled

– NORMAL mode ICC = 4μA

– Shutdown Iq = 100nA

? Operating temperature range TA = –40°C to +85°C

? Package:

– 6-pin DSE (1.50mm × 1.50mm × 0.75mm)

2 Applications

? Tablet PCs

? Mobile handsets

? Handheld data terminals

3 Description

The BQ2970 battery cell protection device provides

an accurate monitor and trigger threshold for

overcurrent protection during high discharge/charge

current operation or battery overcharge conditions.

The BQ2970 device provides the protection functions

for Li-ion/Li-polymer cells, and monitors across the

external power FETs for protection due to high

charge or discharge currents. In addition, there is

overcharge and depleted battery monitoring and

protection. These features are implemented with low

current consumption in NORMAL mode operation.