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BQ25017RHLT

更新时间： 2024-02-24 03:26:16
品牌 Logo 应用领域
德州仪器 - TI 转换器便携式
页数 文件大小 规格书
28页 783K
描述
SINGLE-CHIP CHARGER AND DC/DC CONVERTER IC FOR PORTABLE APPLICATIONS

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BQ25017RHLT 数据手册

 浏览型号BQ25017RHLT的Datasheet PDF文件第2页浏览型号BQ25017RHLT的Datasheet PDF文件第3页浏览型号BQ25017RHLT的Datasheet PDF文件第4页浏览型号BQ25017RHLT的Datasheet PDF文件第5页浏览型号BQ25017RHLT的Datasheet PDF文件第6页浏览型号BQ25017RHLT的Datasheet PDF文件第7页 
bq25015  
bq25017  
www.ti.com  
SLUS721A–DECEMBER 2006–REVISED MARCH 2007  
SINGLE-CHIP CHARGER AND DC/DC CONVERTER IC FOR PORTABLE APPLICATIONS  
FEATURES  
DESCRIPTION  
•
Li-Ion Or Li-Pol Charge Management and  
Synchronous DC-DC Power Conversion In a  
Single Chip  
The bq25015/7 are highly integrated charge and  
power  
management  
devices  
targeted  
at  
space-limited bluetooth applications. The bq25015/7  
devices offer integrated power FET and current  
sensor for charge control, reverse blocking  
protection, high accuracy current and voltage  
regulation, charge status, charge termination, and a  
highly efficient and low-power dc-dc converter in a  
small package.  
•
Charges and Powers the System from Either  
the AC Adapter or USB with Autonomous  
Power Source Selection  
•
•
Integrated USB Charge Control with  
Selectable 100 mA and 500 mA Charge Rates  
Integrated Power FET and Current Sensor for  
Up to 500 mA Charge Applications AND  
300 mA DC-DC Controller with Integrated  
FETs  
The bq25015/7 devices charge the battery in three  
phases: conditioning, constant current and constant  
voltage. Charge is terminated based on minimum  
current. An internal charge timer provides a backup  
safety feature for charge termination. The bq25015/7  
automatically re-starts the charge if the battery  
voltage falls below an internal threshold. The  
bq25015/7 automatically enters sleep mode when  
VCC supply is removed.  
•
•
Reverse Leakage Protection Prevents Battery  
Drainage  
Automatic Power Save Mode For High  
Efficiency at Low Current, or Forced PWM for  
Frequency Sensitive Applications  
The integrated low-power high-efficiency dc-dc  
converter is designed to operate directly from a  
single-cell Li-ion or Li-Pol battery pack. The output  
voltage is either adjustable from 0.7 V to VBAT, or  
fixed at 1.8 V (bq25017) and is capable of delivering  
up to 300-mA of load current. The dc-dc converter  
APPLICATIONS  
•
•
•
MP3 Players  
PDAs, Smartphones  
Digital Cameras  
operates at  
a synchronized 1 MHz switching  
frequency allowing for the use of small inductors.  
TYPICAL APPLICATION  
bq25017RHL  
AC Adapter  
VDC  
PG 14  
SW 19  
10 μH  
1.8 V  
5
3
9
AC  
10 μF  
GND  
10 μF  
VSS  
VSS  
FB  
2
CE 15  
BAT/OUT 17  
BAT/OUT 16  
ISET1 12  
SYSTEM  
Battery  
Pack  
D+  
18 VSS  
D −  
PACK+  
6
7
8
4
USB  
VBUS  
+
10 μF  
1 μF  
PACK−  
STAT1  
STAT2  
EN  
R
ISET2 13  
SET  
GND  
FPWM 20  
USB Port  
sim_app2a_lus721  
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 © 2006–2007, Texas Instruments Incorporated  
1234567...28

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BQ25017RHLT 替代型号

型号 品牌 替代类型 描述 数据表
BQ25017RHLR TI

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