BQ2054 锂离子电池开关模式充电管理 IC

BQ2054 描述

The bq2054 Lithium Ion Fast-Charge IC is designed to optimize charging of lithium ion (Li-Ion) chemistry batteries. A flexible pulse-width modulation regulator allows the bq2054 to control voltage and current during charging. The regulator frequency is set by an external capacitor for design flexibility. The switch-mode design keeps power dissipation to a minimum.

The bq2054 measures battery temperature using an external thermistor for charge qualification. Charging begins when power is applied or on battery insertion.

For safety, the bq2054 inhibits charging until the battery voltage and temperature are within configured limits. If the battery voltage is less than the low-voltage threshold, the bq2054 provides low-current conditioning of the battery

	BQ2054
# Series Cells	Multiple
Charge Current(Max)(A)	>2
Charge Status Outputs	3
Control Topology	Switchmode
Switching Frequency(kHz)	100
Primary Charge Termination Method	Minimum Current
Pin/Package	16PDIP, 16SOIC
Vin(Max)(V)	7

BQ2054 特性

• Safe charge of Lithium Ion battery packs
• Voltage-regulated current-limited charging
• Fast charge terminated by selectable minimum current; safety backup termination on maximum time
• Charging continuously qualified by temperature and voltage limits
• Pulse-width modulation control ideal for high-efficiency switch-mode power conversion
• Direct LED control outputs display charge status and fault conditions

BQ2054 芯片订购指南

器件	状态	温度 (oC)	价格（美元）	封装 | 引脚	封装数量 | 封装载体	丝印标记
BQ2054PN	ACTIVE	-20 to 70	2.90 | 1ku	PDIP (N) | 16	25 | TUBE	2054PN-G
BQ2054PNE4	ACTIVE	-20 to 70	2.90 | 1ku	PDIP (N) | 16	25 | TUBE	2054PN-G
BQ2054SN	ACTIVE	-20 to 70	3.50 | 1ku	SOIC (D) | 16	40 | TUBE	2054 (-G, G)
BQ2054SNG4	ACTIVE	-20 to 70	3.50 | 1ku	SOIC (D) | 16	40 | TUBE	2054 (-G, G)
BQ2054SNTR	ACTIVE		2.90 | 1ku	SOIC (D) | 16	2500 | LARGE T&R	2054 (-G, G)
BQ2054SNTRG4	ACTIVE		2.90 | 1ku	SOIC (D) | 16	2500 | LARGE T&R	2054 (-G, G)

BQ2054 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
BQ2054PN	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	BQ2054PN	BQ2054PN
BQ2054PNE4	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	BQ2054PNE4	BQ2054PNE4
BQ2054SN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	BQ2054SN	BQ2054SN
BQ2054SNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	BQ2054SNG4	BQ2054SNG4
BQ2054SNTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	BQ2054SNTR	BQ2054SNTR
BQ2054SNTRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	BQ2054SNTRG4	BQ2054SNTRG4

BQ2054 应用技术支持与电子电路设计开发资源下载

1. BQ2054 数据资料 dataSheet 下载.PDF
2. TI 德州仪器电池管理产品选型与价格 . xls
3. 照明和显示屏电源选择指南 (PDF 1427 KB)
4. QFN Layout Guidelines (PDF 1279 KB)
5. 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
6. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A) (PDF 2206 KB)
7. PowerPADTM Made Easy (PDF 57 KB)
8. 标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
9. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
10. 所选封装材料的热学和电学性质 (PDF 645 KB)
11. 高速数据转换 (PDF 1967 KB)

BQ2054 相关工具

名称	型号	工具/软件类型
用于锂离子电池、开关模式的 BQ2054 评估模块	DV2054S2	开发电路板/EVM
电池充电器的快速搜索选择工具	BATTERY_CHARGERS_SELECTION_TOOL	免费评估工具