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TPS61169 38V High Current-Boost WLED Driver With PWM Control
SNVSA40B
October 2014 – June 2024
TPS61169
PRODUCTION DATA
CONTENTS
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TPS61169 38V High Current-Boost WLED Driver With PWM Control
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
Typical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
Soft Start-Up
6.3.2
Open LED Protection
6.3.3
Shutdown
6.3.4
Current Program
6.3.5
LED Brightness Dimming
6.3.6
Undervoltage Lockout
6.3.7
Thermal Foldback and Thermal Shutdown
6.4
Device Functional Modes
6.4.1
Operation With CTRL
7
Application and Implementation
7.1
Application Information
7.2
Typical Application
7.2.1
Design Requirements
7.2.2
Detailed Design Procedure
7.2.2.1
Inductor Selection
7.2.2.2
Schottky Diode Selection
7.2.2.3
Output Capacitor Selection
7.2.2.4
LED Current Set Resistor
7.2.2.5
Thermal Considerations
7.3
Application Curves
7.4
Power Supply Recommendations
7.5
Layout
7.5.1
Layout Guidelines
7.5.2
Layout Example
8
Device and Documentation Support
8.1
Device Support
8.2
Receiving Notification of Documentation Updates
8.3
Support Resources
8.4
Trademarks
8.5
Electrostatic Discharge Caution
8.6
Glossary
9
Revision History
10
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
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TPS61169 38V High Current-Boost WLED Driver
With PWM Control