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TPS54200, TPS54201 4.5-V to 28-V Input Voltage, 1.5-A Output Current, Synchronous Buck Mono-Color or IR LED Driver
SLUSCO8B
November 2016 – June 2018
TPS54200
,
TPS54201
PRODUCTION DATA.
CONTENTS
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TPS54200, TPS54201 4.5-V to 28-V Input Voltage, 1.5-A Output Current, Synchronous Buck Mono-Color or IR LED Driver
1
Features
2
Applications
3
Description
Device Images
Simplified Schematic
Excellent Deep Dimming in ADIM
4
Revision History
5
Description (continued)
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
Device and Documentation Support
12.1
Device Support
12.1.1
Third-Party Products Disclaimer
12.2
Documentation Support
12.2.1
Related Links
12.3
Receiving Notification of Documentation Updates
12.4
Community Resources
12.5
Trademarks
12.6
Electrostatic Discharge Caution
12.7
Glossary
13
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
DDC|6
MPDS124I
Thermal pad, mechanical data (Package|Pins)
Orderable Information
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slusco8b_pm
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