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BQ24751RHDT

更新时间： 2024-11-27 04:34:39
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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 1532K
描述
Host-controlled Multi-chemistry Battery Charger with System Power Selector, AC Over-Power Protection, and Programmable OVP

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BQ24751RHDT 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：QFN包装说明：HVQCCN, LCC28,.2SQ,20
针数：28Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
Factory Lead Time：1 week风险等级：5.79
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
封装等效代码：LCC28,.2SQ,20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
电源：7/24 V认证状态：Not Qualified
座面最大高度：1 mm子类别：Power Management Circuits
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
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 mmBase Number Matches：1

BQ24751RHDT 数据手册

 浏览型号BQ24751RHDT的Datasheet PDF文件第2页浏览型号BQ24751RHDT的Datasheet PDF文件第3页浏览型号BQ24751RHDT的Datasheet PDF文件第4页浏览型号BQ24751RHDT的Datasheet PDF文件第5页浏览型号BQ24751RHDT的Datasheet PDF文件第6页浏览型号BQ24751RHDT的Datasheet PDF文件第7页 
bq24751  
www.ti.com  
SLUS734–DECEMBER 2006  
Host-controlled Multi-chemistry Battery Charger with System Power Selector, AC  
Over-Power Protection, and Programmable OVP  
FEATURES  
•
•
10-µA Off-State Current  
•
•
•
NMOS-NMOS Synchronous Buck Converter  
with 300 kHz Frequency and >95% Efficiency  
28-pin, 5x5-mm QFN package  
APPLICATIONS  
30-ns Minimum Driver Dead-time and 99.5%  
Maximum Effective Duty Cycle  
•
•
•
•
•
•
Notebook and Ultra-Mobile Computers  
Portable Data Capture Terminals  
Portable Printers  
Medical Diagnostics Equipment  
Battery Bay Chargers  
High-Accuracy Voltage and Current  
Regulation  
–
–
–
–
±0.5% Charge Voltage Accuracy  
±3% Charge Current Accuracy  
Battery Back-up Systems  
±3% Adapter Current Accuracy  
±2% Input Current Sense Amp Accuracy  
DESCRIPTION  
•
•
Integration  
The bq24751 is  
a high-efficiency, synchronous  
–
Automatic System Power Selection From  
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 very high regulation  
accuracies, and can be either hardwired with  
AC/DC Adapter or Battery  
Internal Loop Compensation  
Internal Soft Start  
–
–
Safety  
–
–
–
–
Programmable Input Overvoltage  
Protection (OVP)  
resistors  
or  
programmed  
by  
the  
system  
power-management microcontroller using a DAC or  
GPIOs.  
Dynamic Power Management (DPM) with  
Status Indicator  
The bq24751 charges two, three, or four series Li+  
cells, supporting up to 10 A of charge current, and is  
available in a 28-pin, 5x5-mm thin QFN package.  
Programmable Inrush Adapter Power  
(ACOP) and Overcurrent (ACOC) Limits  
Reverse-Conduction Protection Input FET  
•
•
•
Supports Two, Three, or Four Li+ Cells  
5 – 24 V AC/DC-Adapter Operating Range  
Analog Inputs with Ratiometric Programming  
via Resistors or DAC/GPIO Host Control  
27 26 25 24 23 22  
28  
1
2
CHGEN  
ACN  
LEARN  
20 CELLS  
SRP  
19  
21  
–
–
Charge Voltage (4-4.512 V/cell)  
Charge Current (up to 10 A, with 10-mΩ  
bq24751  
28 LD QFN  
TOP VIEW  
ACP  
3
4
5
6
sense resistor)  
ACDRV  
ACDET  
ACSET  
ACOP  
18 SRN  
–
Adapter Current Limit (DPM)  
BAT  
17  
•
Status and Monitoring Outputs  
16 SRSET  
–
AC/DC Adapter Present with  
IADAPT  
15  
7
Programmable Voltage Threshold  
8
9
10 11 12 13 14  
–
Current Drawn from Input Source  
•
•
Battery Learn Cycle Control  
Supports Any Battery Chemistry: Li+, NiCd,  
NiMH, Lead Acid, etc.  
•
Charge Enable  
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 © 2006, Texas Instruments Incorporated  
1234567...39

中文翻译

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BQ24751RHDT 替代型号

型号 品牌 替代类型 描述 数据表
BQ24751RHDR TI

完全替代

 Host-controlled Multi-chemistry Battery Charger with System Power Selector, AC Over-Power
BQ24751RHDRG4 TI

类似代替

 Host-controlled Multi-chemistry Battery Charger

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