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BQ24750ARHDR PDF预览

BQ24750ARHDR

更新时间: 2024-09-25 06:44:11
品牌 Logo 应用领域
德州仪器 - TI 电源电路电池电源管理电路
页数 文件大小 规格书
39页 1744K
描述
Host-Controlled Multi-Chemistry Battery Charger with Low Iq and Integrated System Power Selector

BQ24750ARHDR 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:QFN
包装说明:HVQCCN,针数:28
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.14
Is Samacsys:N可调阈值:YES
模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUITJESD-30 代码:S-PQCC-N28
JESD-609代码:e4长度:5 mm
湿度敏感等级:2信道数量:1
功能数量:1端子数量:28
最高工作温度:125 °C最低工作温度:-40 °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
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1 mm最大供电电压 (Vsup):24 V
最小供电电压 (Vsup):5 V标称供电电压 (Vsup):7 V
表面贴装:YES温度等级:AUTOMOTIVE
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
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:5 mm
Base Number Matches:1

BQ24750ARHDR 数据手册

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bq24750A  
www.ti.com ....................................................................................................................................................................................................... SLUS834JULY 2008  
Host-Controlled Multi-Chemistry Battery Charger with Low Iq and Integrated System  
Power Selector  
1
FEATURES  
28-pin, 5x5-mm QFN package  
Energy Star Low Iq  
NMOS-NMOS Synchronous Buck Converter  
with 300 kHz Frequency and >95% Efficiency  
< 10 µA Off-State Battery Discharge Current  
30-ns Minimum Driver Dead-time and 99.5%  
Maximum Effective Duty Cycle  
< 1.5 mA Off-State Input Qiescent Current  
High-Accuracy Voltage and Current Regulation  
APPLICATIONS  
Notebook and Ultra-Mobile Computers  
Portable Data-Capture Terminals  
Portable Printers  
Medical Diagnostics Equipment  
Battery Bay Chargers  
±0.5% Charge Voltage Accuracy  
±3% Charge Current Accuracy  
±3% Adapter Current Accuracy  
±2% Input Current Sense Amp Accuracy  
Integration  
Battery Back-up Systems  
Automatic System Power Selection From  
AC/DC Adapter or Battery  
Internal Loop Compensation  
Internal Soft Start  
DESCRIPTION  
The bq24750A is a high-efficiency, synchronous  
battery charger with integrated compensation and  
system power selector logic, offering low component  
count for space-constrained multi-chemistry battery  
charging applications. Ratiometric charge current and  
voltage programming allows high regulation  
accuracies, and can be either hardwired with resistors  
or programmed by the system power-management  
microcontroller using a DAC or GPIOs.  
Safety  
Input Overvoltage Protection (OVP)  
Dynamic Power Management (DPM) with  
Status Indicator  
Programmable Inrush Adapter Power  
(ACOP) and Overcurrent (ACOC) Limits  
Reverse-Conduction Protection Input FET  
Battery Thermistor Sense Input (TS) for  
Charge Qualification  
Supports Two, Three, or Four Li+ Cells  
5–24 V AC/DC-Adapter Operating Range  
28 27 26 25 24 23 22  
CHGEN  
ACN  
1
2
3
4
5
6
7
21  
20  
19  
DPMDET  
CELLS  
SRP  
Analog Inputs with Ratiometric Programming  
via Resistors or DAC/GPIO Host Control  
bq24750A  
28 LD QFN  
TOP VIEW  
ACP  
Charge Voltage (4–4.512 V/cell)  
ACDRV  
ACDET  
ACSET  
ACOP  
18 SRN  
Charge Current (up to 10 A, with 10 m  
BAT  
17  
sense resistor)  
SRSET  
IADAPT  
16  
15  
Adapter Current Limit (DPM)  
Status and Monitoring Outputs  
AC/DC Adapter Present with Programmable  
Voltage Threshold  
8
9
10 11 12 13 14  
DPM Loop Active  
Current Drawn from Input Source  
Supports Any Battery Chemistry: Li+, NiCd,  
NiMH, Lead Acid, etc.  
Charge Enable  
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.  
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  

BQ24750ARHDR 替代型号

型号 品牌 替代类型 描述 数据表
BQ24750ARHDT TI

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