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BQ24753RHDT

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 2003K
描述
Host-Controlled Multi-Chemistry Battery Charger with Low Iq and System Power Selector

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BQ24753RHDT 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：QFN-28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：5.32Is 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：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)：8 V
标称供电电压 (Vsup)：20 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 mmBase Number Matches：1

BQ24753RHDT 数据手册

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bq24753  
www.ti.com........................................................................................................................................ SLUS885A–DECEMBER 2008–REVISED DECEMBER 2008  
Host-Controlled Multi-Chemistry Battery Charger with Low Iq and System Power Selector  
1
FEATURES  
APPLICATIONS  
•
•
•
•
•
•
Notebook and Ultra-Mobile Computers  
Portable Data Capture Terminals  
Portable Printers  
Medical Diagnostics Equipment  
Battery Bay Chargers  
2
•
NMOS-NMOS Synchronous Buck Converter  
with 300 kHz Frequency and >95% Efficiency  
•
•
30-ns Minimum Driver Dead-time and 99.5%  
Maximum Effective Duty Cycle  
High-Accuracy Voltage and Current Regulation  
Battery Back-up Systems  
–
–
–
–
±0.5% Charge Voltage Accuracy  
±3% Charge Current Accuracy  
DESCRIPTION  
±3% Adapter Current Accuracy  
±2% Input Current Sense Amp Accuracy  
The bq24753 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 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 bq24753 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.  
–
–
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  
5 – 24 V AC/DC-Adapter Operating Range  
27 26 25 24 23 22  
28  
1
2
CHGEN  
ACN  
LEARN  
20 CELLS  
SRP  
19  
21  
Analog Inputs with Ratiometric Programming  
via Resistors or DAC/GPIO Host Control  
bq24753  
28 LD QFN  
TOP VIEW  
ACP  
3
4
5
6
–
–
Charge Voltage (4-4.512 V/cell)  
ACDRV  
ACDET  
ACSET  
ACOP  
18 SRN  
Charge Current (up to 10 A, with 10-mΩ  
BAT  
17  
Sense Resistor)  
16 SRSET  
–
Adapter Current Limit (DPM)  
IADAPT  
15  
7
•
Status and Monitoring Outputs  
8
9
10 11 12 13 14  
–
AC/DC Adapter Present with Programmable  
Voltage Threshold  
–
Current Drawn from Input Source  
•
•
Battery Learn Cycle Control  
Supports Any Battery Chemistry: Li+, NiCd,  
NiMH, Lead Acid, etc.  
•
•
•
Charge Enable  
28-pin, 5x5-mm QFN package  
Energy Star Low Iq  
–
–
< 10 µA Off-State Battery Discharge Current  
1
< 1.5 mA Off-State Input Quiescent Current  
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 © 2008, Texas Instruments Incorporated  
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中文翻译

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BQ24753RHDT 替代型号

型号 品牌 替代类型 描述 数据表
BQ24753RHDR TI

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

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