BQ41Z50中文资料2-4 节串联锂离子高度集成式电池电量监测计和保护器数据手册TI规格书

描述 Description

The BQ41Z50 device, incorporating Dynamic Z-Track™ technology, is a fully integrated, single-chip, pack-based solution that provides a rich array of features for gas gauging, protection, and authentication for 2-series, 3-series, and 4-series cell Li-ion, LiPO, and LiFePO4 battery packs.

Using its integrated high-performance analog peripherals and ultra-low power 32-bit RISC processor, the BQ41Z50 device measures and maintains an accurate record of available cell capacity, voltage, current, temperature, and other critical battery parameters and reports them to the system host controller over an SMBus v3.2 compatible interface.

特性 Features

Fully integrated 2-series, 3-series, and 4-series cell Li-ion, LiPO, or LiFePO4 battery pack manager and protection

Ultra-low power 32-bit RISC processor

TI Dynamic Z-Track™ algorithm

Up to 40V tolerant power supply pins

High side N-CH protection FET drive with configurable drive strength

Precision analog front-end with two independent 16-bit ADCs:

Support for simultaneous current and voltage sampling

Support for up to four external thermistor measurements and an internal temperature sensor



Primary and secondary levels of protection

Overvoltage and undervoltage

Overcurrent in charge and discharge

Short circuit in discharge

Overtemperature

Charge timeout

CHG and DSG FET drivers



Sophisticated charge algorithms

JEITA

Adaptive charging based on cycle time, run time, and SOH

Cell balancing



Integrated cell balancing while charging or at rest

Supports TURBO mode

Diagnostic lifetime data monitor and black box recorder

Optional up to three LED display support

Supports SHA-1, SHA-2, and Elliptic Curve Cryptography (ECC) authentication

Up to 1MHz SMBus v3.2 host communication support

Compact package: 32-lead WQFN (RSN)