ZHCSFQ9B
November 2016 – June 2018
TPS54200
,
TPS54201
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
简化电路原理图
ADIM 中的深度调光性能出色
4
修订历史记录
5
说明 (续)
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements
7.7
Switching Characteristics
7.8
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Fixed-Frequency PWM Control
8.3.2
Error Amplifier
8.3.3
Slope Compensation and Output Current
8.3.4
Input Undervoltage Lockout
8.3.5
Voltage Reference
8.3.6
Setting LED Current
8.3.7
Internal Soft Start
8.3.8
Bootstrap Voltage (BOOT)
8.3.9
Overcurrent Protection
8.3.9.1
High-Side MOSFET Overcurrent Protection
8.3.9.2
Low-Side MOSFET Overcurrent Protection
8.3.9.3
Low-Side MOSFET Reverse Overcurrent Protection
8.3.10
Fault Protection
8.3.10.1
LED-Open Protection
8.3.10.2
LED Short Protection
8.3.10.3
Sense-Resistor Short Protection
8.3.10.4
Sense-Resistor Open Protection
8.3.10.5
Overvoltage Protection
8.3.10.6
Thermal Shutdown
8.4
Device Functional Modes
8.4.1
Enable and Disable Device
8.4.2
Mode Detection
8.4.3
Analog Dimming Mode Operation
8.4.4
PWM Dimming-Mode Operation
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
TPS5420x 12-V Input, 1.5-A, 3-Piece IR LED Driver With Analog Dimming
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.2.1
Inductor Selection
9.2.1.2.2
Input Capacitor Selection
9.2.1.2.3
Output Capacitor Selection
9.2.1.2.4
FB Pin RC Filter Selection
9.2.1.2.5
Sense Resistor Selection
9.2.1.3
Application Curves
9.2.2
TPS5420x 24-V Input, 1-A, 4-Piece WLED Driver With PWM Dimming
9.2.2.1
Design Requirements
9.2.2.2
Detailed Design Procedure
9.2.2.2.1
Inductor Selection
9.2.2.2.2
Input Capacitor Selection
9.2.2.2.3
Output Capacitor Selection
9.2.2.2.4
FB Pin RC Filter Selection
9.2.2.2.5
Sense Resistor Selection
9.2.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
器件和文档支持
12.1
器件支持
12.1.1
第三方产品免责声明
12.2
文档支持
12.2.1
相关链接
12.3
接收文档更新通知
12.4
社区资源
12.5
商标
12.6
静电放电警告
12.7
术语表
13
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
DDC|6
MPDS124G
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsfq9b_oa
zhcsfq9b_pm
11.2
Layout Example
Figure 50.
Layout Example