ZHCSCU1
September 2014
TPS53632
PRODUCTION DATA.
1
特性
2
应用
3
说明
4
修订历史记录
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
Handling Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Timing Requirements
6.7
Switching Characteristics
6.8
Typical Characteristics (2-Phase Operation)
6.9
Typical Characteristics (3-Phase Operation)
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Current Sensing
7.3.2
Load Transients
7.3.3
AutoBalance Current Sharing
7.3.4
PWM and SKIP Signals
7.3.5
5-V, 3.3-V and 1.8-V Undervoltage Lockout (UVLO)
7.3.6
Output Undervoltage Protection (UVP)
7.3.7
Overcurrent Protection (OCP)
7.3.8
Overvoltage Protection
7.3.9
Analog Current Monitor, IMON and Corresponding Digital Output Current
7.3.10
Addressing
7.3.11
I2C Interface Operation
7.3.11.1
Key for Protocol Examples
7.3.11.2
Protocol Examples
7.3.12
Start-Up Sequence
7.3.13
Phase Add and Drop Operation
7.3.14
Power Good Operation
7.3.15
Input Voltage Limits
7.3.16
Fault Behavior
7.4
Device Functional Modes
7.4.1
PWM Operation
7.5
Configuration and Programming
7.5.1
Operating Frequency
7.5.2
Overcurrent Protection (OCP) Level
7.5.3
IMON Gain
7.5.4
Slew Rate
7.5.5
Base Address
7.5.6
Ramp Selection
7.5.7
Active Phases
7.6
Register Maps
7.6.1
Voltage Select Register (VSR) (00h)
7.6.2
IMON Register (03h)
7.6.3
VMAX Register (04h)
7.6.4
Power State Register (06h)
7.6.5
SLEW Register (07h)
7.6.6
Lot Code Registers (10-13h)
7.6.7
Fault Register (14h)
8
Applications and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
3-Phase D-CAP+™, Step-Down Application
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Step 1: Select Switching Frequency
8.2.1.2.2
Step 2: Set The Slew Rate
8.2.1.2.3
Step 3: Determine Inductor Value And Choose Inductor
8.2.1.2.4
Step 4: Determine Current Sensing Method
8.2.1.2.5
Step 5: DCR Current Sensing
8.2.1.2.6
Step 6: Select OCP Level
8.2.1.2.7
Step 7: Set the Load-Line Slope
8.2.1.2.8
Step 8: Current Monitor (IMON) Setting
8.2.1.3
Application Performance Plots
8.2.1.4
Loop Compensation for Zero Load-Line
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.1.1
PCB Layout
10.1.2
Current Sensing Lines
10.1.3
Feedback Voltage Sensing Lines
10.1.4
PWM And SKIP Lines
10.1.4.1
Minimize High Current Loops
10.1.5
Power Chain Symmetry
10.1.6
Component Location
10.1.7
Grounding Recommendations
10.1.8
Decoupling Recommendations
10.1.9
Conductor Widths
10.2
Layout Example
11
器件和文档支持
11.1
商标
11.2
静电放电警告
11.3
术语表
12
机械封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
RSM|32
MPQF195B
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcscu1_oa
4 修订历史记录
日期
修订版本
注释
2014 年 9 月
*
最初发布。