BQ29400PW 供应商
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BQ29400PW
品牌：TI 封装/批号：原厂原装/22+ -
BQ29400PW
品牌：TI/BB 封装/批号：TSSOP8/4 -
BQ29400PW
品牌：TI/BEnchmarp 封装/批号：TSSOP8/23+ -
BQ29400PW
品牌：TI 封装/批号：SOP/21+ -
BQ29400PWR
品牌：TI 封装/批号：TSSOP8/23+
BQ29400PW 属性参数
- 标准包装：150
- 类别：集成电路 (IC)
- 家庭：PMIC - 电池管理
- 系列：-
- 功能：过压/欠压保护
- 电池化学：锂离子（Li-Ion）
- 电源电压：4 V ~ 25 V
- 工作温度：-25°C ~ 85°C
- 安装类型：表面贴装
- 封装/外壳：8-TSSOP（0.173"，4.40mm 宽）
- 供应商设备封装：8-TSSOP
- 包装：管件
- 配用：296-20821-ND - EVALUATION MODULE FOR BQ20Z80
- 其它名称：296-15331-5
产品特性
- 2-, 3-, or 4-Cell Secondary Protection
- Low Power Consumption ICC < 2 µA [VCELL(ALL) <V(PROTECT)]
- High Accuracy Over Sense Voltage: bq29400: 4.35 V ±25 mV bq29400A: 4.40 V ±25 mV bq29401: 4.45 V ±25 mV bq29405: 4.65 V ±25 mV
- bq29400: 4.35 V ±25 mV
- bq29400A: 4.40 V ±25 mV
- bq29401: 4.45 V ±25 mV
- bq29405: 4.65 V ±25 mV
- Prefixed Protection Threshold Voltage
- Programmable Delay Time
- High Power Supply Ripple Rejection
- Stable During Pulse Charge Operation
- APPLICATIONS 2nd Level Protection in Lion Battery Packs in Notebook PCs Portable Instrumentation Medical and Test Equipment
- 2nd Level Protection in Lion Battery Packs in Notebook PCs Portable Instrumentation Medical and Test Equipment
- Notebook PCs
- Portable Instrumentation
- Medical and Test Equipment
产品概述
The bq29400, bq29400A, bq29401, and bq29405 are BiCMOS secondary protection ICs for 2-, 3-, or 4-cell Lithium-Ion battery packs that incorporate a high-accuracy precision over voltage detection circuit. They include a programmable delay circuit for over voltage detection time.Each cell in a multiple cell pack is compared to an internal reference voltage. If one cell reaches an overvoltage condition, the protection sequence begins. The bq2940x device starts charging an external capacitor through the CD pin. When the CD pin voltage reaches 1.2 V, the OUT pin changes from a low level to a high level.
BQ29400PW