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参数资料
型号： TPS65735RSNR
厂商： TEXAS INSTRUMENTS INC
元件分类： 模拟信号调理
英文描述： SPECIALTY ANALOG CIRCUIT, PQCC32
封装： GREEN, PLASTIC, QFN-32
文件页数： 12/32页
文件大小： 1324K
代理商： TPS65735RSNR
TPS65735
SLVSAI6
– JUNE 2011
www.ti.com
Contents
1
INTRODUCTION
.................................................................................................................. 5
1.1
Features
...................................................................................................................... 5
1.2
Description
................................................................................................................... 5
1.3
Pin Descriptions
............................................................................................................. 6
1.4
Package Pin Assignments
................................................................................................. 7
2
POWER MANAGEMENT CORE
.............................................................................................. 8
2.1
Recommended Operating Conditions
.................................................................................... 8
2.2
Absolute Maximum Ratings
................................................................................................ 8
2.3
Thermal Information
........................................................................................................ 9
2.4
Quiescent Current
........................................................................................................... 9
2.5
Electrical Characteristics
................................................................................................... 9
2.6
System Operation
......................................................................................................... 13
2.6.1
System Power Up
.............................................................................................. 13
2.6.2
System Operation Using Push Button Switch
.............................................................. 14
2.6.3
System Operation Using Slider Switch
...................................................................... 15
2.7
Linear Charger Operation
................................................................................................ 16
2.7.1
Battery and TS Detection
...................................................................................... 16
2.7.2
Battery Charging
................................................................................................ 16
2.7.2.1
Pre-charge
.......................................................................................... 17
2.7.2.2
Charge Termination
................................................................................ 17
2.7.2.3
Recharge
............................................................................................ 17
2.7.2.4
Charge Timers
...................................................................................... 17
2.7.3
Charger Status (nCHG_STAT Pin)
........................................................................... 18
2.8
LDO Operation
............................................................................................................. 18
2.8.1
LDO Internal Current Limit
.................................................................................... 18
2.9
Boost Converter Operation
............................................................................................... 19
2.9.1
Boost Thermal Shutdown
...................................................................................... 19
2.9.2
Boost Load Disconnect
........................................................................................ 20
2.10
Full H-Bridge Analog Switches
.......................................................................................... 20
2.10.1
H-Bridge Switch Control
....................................................................................... 20
2.11
Power Management Core Control
....................................................................................... 22
2.11.1
SLEEP / Power Control Pin Function
........................................................................ 22
2.11.2
COMP Pin Functionality
....................................................................................... 22
2.11.3
SW_SEL Pin Functionality
.................................................................................... 23
2.11.4
SWITCH Pin
..................................................................................................... 23
2.11.5
Slider Switch Behavior
......................................................................................... 23
2.11.6
Push-Button Switch Behavior
................................................................................. 24
3
APPLICATION INFORMATION
............................................................................................. 26
3.1
Applications Schematic
................................................................................................... 26
3.2
Reducing System Quiescent Current (IQ) .............................................................................. 26
3.3
Boost Converter Application Information
............................................................................... 27
3.3.1
Setting Boost Output Voltage
................................................................................. 27
3.3.2
Boost Inductor Selection
....................................................................................... 28
3.3.3
Boost Capacitor Selection
..................................................................................... 28
3.4
Bypassing Default Push-Button SWITCH Functionality
.............................................................. 28
2
Contents
Copyright
2011, Texas Instruments Incorporated
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