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BQ24753ARHDT PDF预览

BQ24753ARHDT

更新时间： 2024-11-29 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
38页 1883K
描述
Host-Controlled Li-Ion and Li-Polymer Battery Charger with Low Iq and System Power Selector

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BQ24753ARHDT 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：8542.39.00.01Factory Lead Time：1 week
风险等级：0.8Is Samacsys：N
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-N28JESD-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：85 °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)：8 V
标称供电电压 (Vsup)：20 V表面贴装：YES
温度等级：INDUSTRIAL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 mmBase Number Matches：1

BQ24753ARHDT 数据手册

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bq24753A  
www.ti.com ....................................................................................................................................................................................................... SLUS920–JULY 2009  
Host-Controlled Li-Ion and Li-Polymer Battery Charger  
with Low Iq and System Power Selector  
1
FEATURES  
APPLICATIONS  
•
Notebook, Netbook and Ultra-Mobile  
Computers  
2
•
NMOS-NMOS Synchronous Buck Converter  
with 300 kHz Frequency and >95% Efficiency  
•
•
•
•
•
Portable Data Capture Terminals  
Portable Printers  
Medical Diagnostics Equipment  
Battery Bay Chargers  
•
•
30-ns Minimum Driver Dead-time and 99.5%  
Maximum Effective Duty Cycle  
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  
The bq24753A is a high-efficiency, synchronous  
battery charger with integrated compensation and  
system power selector logic, offering low component  
count for space-constrained Li-Ion and Li-Polymer  
battery charging applications. Ratiometric charge  
current and voltage programming allows for high  
regulation accuracies, and can be either hardwired  
with resistors or programmed by the system  
power-management microcontroller using a DAC or  
GPIOs.  
•
•
Integration  
–
Automatic System Power Selection From  
AC/DC Adapter or Battery  
Internal Loop Compensation  
Internal Soft Start  
–
–
Safety  
–
Programmable Input Overvoltage  
Protection (OVP)  
The bq24753A 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.  
–
–
Fast Dynamic Power Management (DPM)  
Programmable Inrush Adapter Power  
(ACOP) and Overcurrent (ACOC) Limits  
–
Reverse-Conduction Protection Input FET  
•
•
•
Supports Two, Three, or Four Li+ Cells  
8 – 24 V AC/DC-Adapter Operating Range  
27 26 25 24 23 22  
28  
Analog Inputs with Ratiometric Programming  
via Resistors or DAC/GPIO Host Control  
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)  
Adapter Current Limit (DPM)  
bq24753A  
28 LD QFN  
TOP VIEW  
ACP  
3
4
5
6
ACDRV  
ACDET  
ACSET  
ACOP  
18 SRN  
•
Status and Monitoring Outputs  
BAT  
17  
–
Adapter Present with Programmable  
Voltage Threshold  
16 SRSET  
IADAPT  
15  
7
–
Current Drawn from Input Source  
8
9
10 11 12 13 14  
•
•
•
•
Battery Learn Cycle Control  
Charge Enable  
28-pin, 5x5-mm QFN package  
Energy Star Low Iq  
–
–
< 10 µA Off-State Battery Discharge Current  
< 1.5 mA Off-State Input Quiescent Current  
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
All trademarks are the property of their respective owners.  
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 © 2009, Texas Instruments Incorporated  
1234567...38

中文翻译

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BQ24753ARHDT 替代型号

型号 品牌 替代类型 描述 数据表
BQ24753RHDR TI

类似代替

 Host-Controlled Multi-Chemistry Battery Charger with Low Iq and System Power Selector
BQ24753ARHDR TI

类似代替

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 ADVANCED MULTI-CHEMISTRY AND MULTI-CELL SYNCHRONOUS SWITCH-MODE CHARGER AND SYSTEM POWER S

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