BQ4050 bq40z50 1 节、2 节、3 节和 4 节串联锂离子电池组管理器

描述

德州仪器（TI）的bq4050器件采用补偿放电终止电压（CEDV）技术，是一款高度集成的高精度1-4节电池电量

bq4050器件提供一个基于电池组的完全集成式解决方案，该解决方案具备闪存可编程的定制精简指令集CPU（RISC），安全保护以及身份验证，适用于锂离子和锂聚合物电池组。

bq4050电量测量仪表通过一个与SMBus兼容的接口进行通信，并将超低功耗的高速TI bqBMP处理器，高精度模拟测量功能，集成式闪存存储器，一组外设和通信端口，N通道FET驱动以及SHA-1身份验证变换响应器，融合为一个完整的高性能电池管理解决方案方案。


Number of Series Cells
Cell Chemistry
Battery Capacity (Max) (mAh)
Communication Interface
Battery Capacity (Min) (mAh)
External Capacity Indication
Implementation
Gas Gauge Algorithm
Cell Balancing
Features
Operating Temperature Range (C)
Pin/Package

BQ4050	BQ27542-G1	BQ27750	BQ28Z610	BQ40Z50-R1	BQ40Z50-R2	BQ78Z100
2-4 Cells Single Cell	Single Cell	Single Cell	1-2 Cells	2-4 Cells Single Cell	2-4 Cells Single Cell	1-2 Cells
Li-Ion/Li-Polymer LiFePO4	Li-Ion/Li-Polymer	Li-Ion/Li-Polymer LiFePO4	Li-Ion/Li-Polymer	Li-Ion/Li-Polymer LiFePO4	Li-Ion/Li-Polymer LiFePO4	Li-Ion/Li-Polymer
29000	32000	14000	14000	29000	29000	14000
SMBus	HDQ I2C	I2C	I2C	SMBus	SMBus	HDQ
500	100	100	100	100	500	100
LED	None	None	None	LED	LED	None
Pack	Pack	Pack	Pack	Pack	Pack	Pack
CEDV	Impedance Track	Impedance Track	Impedance Track	Impedance Track	Impedance Track	Impedance Track
External Internal	N/A	N/A	External Internal	External Internal	External Internal	External Internal
Cell Balancing Integrated Protector SHA-1 Authentication	SHA-1 Authentication	Accumulated Coulomb Count Battery Management Unit Integrated Protector SHA-1 Authentication	Battery Management Unit Cell Balancing Integrated Protector SHA-1 Authentication	Cell Balancing Integrated Protector SHA-1 Authentication Turbo Mode	Integrated Protector SHA-1 Authentication Turbo Mode	Cell Balancing Integrated Protector SHA-1 Authentication
-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
32VQFN	12SON	12SON	12SON	32VQFN	32VQFN	12SON

数据手册（1）

元器件购买 BQ4050 相关库存