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BQ24750RHDT

更新时间： 2024-11-29 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
38页 1511K
描述
Host-controlled Multi-chemistry Battery Charger with Integrated System Power Selector and AC Over-Power Protection

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BQ24750RHDT 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：5.16Is Samacsys：N
可调阈值：YES模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT 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)：5 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

BQ24750RHDT 数据手册

 浏览型号BQ24750RHDT的Datasheet PDF文件第2页浏览型号BQ24750RHDT的Datasheet PDF文件第3页浏览型号BQ24750RHDT的Datasheet PDF文件第4页浏览型号BQ24750RHDT的Datasheet PDF文件第5页浏览型号BQ24750RHDT的Datasheet PDF文件第6页浏览型号BQ24750RHDT的Datasheet PDF文件第7页 
bq24750  
www.ti.com  
SLUS735–DECEMBER 2006  
Host-controlled Multi-chemistry Battery Charger with Integrated System Power Selector  
and AC Over-Power Protection  
FEATURES  
•
•
•
Charge Enable  
•
•
•
NMOS-NMOS Synchronous Buck Converter  
with 300 kHz Frequency and >95% Efficiency  
10-µA Off-State Current  
28-pin, 5x5-mm QFN package  
30-ns Minimum Driver Dead-time and 99.5%  
Maximum Effective Duty Cycle  
APPLICATIONS  
•
•
•
•
•
•
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  
±3% Adapter Current Accuracy  
±2% Input Current Sense Amp Accuracy  
Battery Back-up Systems  
•
•
Integration  
DESCRIPTION  
–
Automatic System Power Selection From  
The bq24750 is  
a high-efficiency, synchronous  
AC/DC Adapter or Battery  
Internal Loop Compensation  
Internal Soft Start  
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  
–
–
Safety  
–
–
Input Overvoltage Protection (OVP)  
Dynamic Power Management (DPM) with  
Status Indicator  
resistors  
or  
programmed  
by  
the  
system  
power-management microcontroller using a DAC or  
GPIOs.  
–
Programmable Inrush Adapter Power  
(ACOP) and Overcurrent (ACOC) Limits  
–
–
Reverse-Conduction Protection Input FET  
Battery Thermistor Sense Input (TS) for  
Charge Qualification  
28 27 26 25 24 23 22  
•
•
•
Supports Two, Three, or Four Li+ Cells  
5–24 V AC/DC-Adapter Operating Range  
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  
bq24750  
28 LD QFN  
TOP VIEW  
ACP  
ACDRV  
ACDET  
ACSET  
ACOP  
18 SRN  
–
–
Charge Voltage (4–4.512 V/cell)  
BAT  
17  
Charge Current (up to 10 A, with 10-mΩ  
SRSET  
IADAPT  
16  
15  
sense resistor)  
–
Adapter Current Limit (DPM)  
8
9
10 11 12 13 14  
•
•
Status and Monitoring Outputs  
–
AC/DC Adapter Present with  
Programmable Voltage Threshold  
–
–
DPM Loop Active  
Current Drawn from Input Source  
Supports Any Battery Chemistry: Li+, NiCd,  
NiMH, Lead Acid, etc.  
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  
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BQ24750RHDT 替代型号

型号 品牌 替代类型 描述 数据表
BQ24750RHDTG4 TI

完全替代

 Multi-Cell Synchronous Switch-mode Charger with System Power Selector 28-VQFN -40 to 125
BQ24750RHDRG4 TI

完全替代

 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQCC28, 5 X 5 MM, GREEN, PLASTIC, QFN-28
BQ24750RHDR TI

完全替代

 Host-controlled Multi-chemistry Battery Charger with Integrated System Power Selector and

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 		Host-controlled Multi-Chemistry Battery Charger With System Power Selector, AC Over-Power
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 		1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC28, 5 X 5 MM, GREEN, PLASTIC, QFN-28
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