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BQ24232HARGTT PDF预览

BQ24232HARGTT

更新时间: 2024-11-10 11:08:07
品牌 Logo 应用领域
德州仪器 - TI 电池电源管理电路电源电路
页数 文件大小 规格书
33页 1987K
描述
具有电源路径和 10.5V 过压保护的 USB 友好型 0.5A 锂离子电池充电器 | RGT | 16 | -5 to 125

BQ24232HARGTT 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active包装说明:HVQCCN,
Reach Compliance Code:compliantFactory Lead Time:1 week
风险等级:2.21其他特性:RECHARGE DETECTION IS 4.21V
可调阈值:YES模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码:S-PQCC-N16JESD-609代码:e4
长度:3 mm湿度敏感等级:2
信道数量:1功能数量:1
端子数量:16最高工作温度:125 °C
最低工作温度:-5 °C封装主体材料:PLASTIC/EPOXY
封装代码:HVQCCN封装形状:SQUARE
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE座面最大高度:0.9 mm
最大供电电流 (Isup):1.5 mA最大供电电压 (Vsup):26 V
最小供电电压 (Vsup):4.35 V标称供电电压 (Vsup):5 V
表面贴装:YES温度等级:OTHER
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
阈值电压标称:+3.3V宽度:3 mm
Base Number Matches:1

BQ24232HARGTT 数据手册

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bq24230  
bq24232  
www.ti.com .......................................................................................................................................... SLUS821AOCTOBER 2008REVISED DECEMBER 2008  
USB-FRIENDLY LITHIUM-ION BATTERY CHARGER AND POWER-PATH MANAGEMENT IC  
1
FEATURES  
2
Fully Compliant USB Charger  
Proprietary Start-Up Sequence Limits Inrush  
Current  
Selectable 100-mA and 500-mA Maximum  
Input Current  
Status Indication – Charging/Done, Power  
Good  
100-mA Maximum Current Limit Ensures  
Compliance to USB-IF Standard  
Small 3 mm × 3 mm 16-Lead QFN Package  
Input-based Dynamic Power Management  
(VIN-DPM) for Protection Against Poor USB  
Sources  
APPLICATIONS  
Bluetooth™ Devices  
Low-Power Handheld Devices  
28-V Input Rating With Overvoltage Protection  
Integrated Dynamic Power-Path Management  
(DPPM) Function Simultaneously and  
Independently Powers the System and  
Charges the Battery  
TYPICAL APPLICATION CIRCUIT  
1 kΩ  
1
kΩ  
Supports up to 500-mA Charge Current With  
Current Monitoring Output (ISET)  
SYSTEM  
Programmable Input Current Limit up to  
500 mA for Wall Adapters  
Adaptor  
DC  
IN  
OUT 10  
11  
13  
1mF  
GND  
4.7mF  
Programmable Termination Current (bq24232)  
bq24230  
5
8
EN2  
VSS  
Programmable Precharge and Fast-Charge  
Safety Timers  
BAT  
2
3
4.7mF  
15  
TD  
Reverse Current, Short-Circuit, and Thermal  
Protection  
PACK+  
TEMP  
1
TS  
NTC Thermistor Input  
PACK-  
2.94 kΩ 4.32 kΩ  
DESCRIPTION  
The bq2423x series of devices are highly integrated Li-ion linear chargers and system power-path management  
devices targeted at space-limited portable applications. The devices operate from either a USB port or ac  
adapter and support charge currents between 25 mA and 500 mA. The high-input-voltage range with input  
overvoltage protection supports low-cost, unregulated adapters. The USB input current limit accuracy and  
start-up sequence allow the bq2423x to meet USB-IF inrush current specification. Additionally, the input dynamic  
power management (VIN-DPM) prevents the charger from crashing poorly designed or incorrectly configured USB  
sources.  
The bq2423x features dynamic power-path management (DPPM) that powers the system while simultaneously  
and independently charging the battery. The DPPM circuit reduces the charge current when the input current  
limit causes the system output to fall to the DPPM threshold, thus supplying the system load at all times while  
monitoring the charge current separately. This feature reduces the number of charge and discharge cycles on  
the battery, allows for proper charge termination, and enables the system to run with a defective or absent  
battery pack. Additionally, this enables instant system turn-on even with a totally discharged battery. The  
power-path management architecture also permits the battery to supplement the system current requirements  
when the adapter cannot deliver the peak system currents, enabling the use of a smaller adapter.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
Bluetooth is a trademark of Bluetooth SIG, Inc..  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2008, Texas Instruments Incorporated  

BQ24232HARGTT 替代型号

型号 品牌 替代类型 描述 数据表
BQ24232HARGTR TI

完全替代

USB Friendly 0.5A Li-ion charger with power-Path, 10.5V OVP 16-VQFN -5 to 125

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