ZHCSC40E
February 2014 – May 2018
TPS92630-Q1
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
典型应用原理图
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
Typical Characteristics
8
Parameter Measurement Information
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Constant LED-Current Setting
9.3.2
PWM Control
9.3.3
FAULT Diagnostics
9.3.4
Short-Circuit Detection
9.3.5
Open-Load Detection
9.3.6
Thermal Foldback
9.4
Device Functional Modes
9.4.1
Thermal Information
9.4.2
Operation With V(VIN) < 5 V (Minimum V(VIN))
9.4.3
Operation With 5 V < V(VIN) < 9 V (Lower-Than-Normal Automotive Battery Voltage)
10
Applications and Implementation
10.1
Application Information
10.2
Typical Applications
10.2.1
Stoplight and Taillight Application With PWM Generator
10.2.1.1
Design Requirements
10.2.1.2
Detailed Design Procedure
10.2.1.2.1
Step-by-Step Design Procedure
10.2.1.2.1.1
R(REF)
10.2.1.2.1.2
Duty Cycle
10.2.1.2.1.3
Input and Output Capacitors
10.2.1.3
PWM Dimming Application Curve
10.2.2
Simple Stop-Light and Taillight Application
10.2.2.1
Design Requirements
10.2.2.2
Detailed Design Procedure
10.2.2.2.1
Step-by-Step Design Procedure
10.2.2.2.1.1
R(REF)
10.2.2.2.1.2
R(Stop)
10.2.2.2.1.3
Input and Output Capacitors
10.2.3
Parallel Connection
10.2.3.1
Design Requirements
10.2.3.2
Detailed Design Procedure
10.2.3.2.1
Step-by-Step Design Procedure
10.2.3.2.1.1
R(REF)
10.2.3.2.1.2
Input and Output Capacitors
10.2.4
Alternate Parallel Connection
10.2.4.1
Design Requirements
10.2.4.2
Detailed Design Procedure
10.2.4.2.1
Step-by-Step Design Procedure
10.2.4.2.1.1
R(REF)
10.2.4.2.1.2
Input and Output Capacitors
10.2.5
High-Side PWM Dimming
10.2.5.1
Design Requirements
10.2.5.2
Detailed Design Procedure
10.2.5.2.1
Step-by-Step Design Procedure
10.2.5.2.1.1
Ratio of Resistors, R1 / R2
10.2.5.2.1.2
R1 and R2 Selection
10.2.5.2.1.3
Input and Output Capacitors
11
Power Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
器件和文档支持
13.1
文档支持
13.1.1
相关文档
13.2
接收文档更新通知
13.3
社区资源
13.4
商标
13.5
静电放电警告
13.6
术语表
14
机械、封装和可订购信息
10.2.1.2.1.2
Duty Cycle
Equation 8.
Duty cycle = I
(tail)
/ I
(stop)
= 75 / 150 = 50%
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