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TPS922050/1 65V 1A/2A Buck LED Driver with PWM/Analog Dimming
SLVSHL9
November 2024
TPS922050
,
TPS922051
PRODUCTION DATA
CONTENTS
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TPS922050/1 65V 1A/2A Buck LED Driver with PWM/Analog Dimming
1
1
Features
2
Applications
3
Description
4
Device Comparison Table
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Adaptive Off-Time Current Mode Control
7.3.2
Setting LED Current
7.3.3
Internal Soft Start
7.3.4
Dimming Mode
7.3.4.1
PWM Dimming
7.3.4.2
Analog Dimming
7.3.5
Fault Protection
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
TPS922051D2 24V Input, 2A Output, 4-piece WLED Driver With Analog Dimming
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Inductor Selection
8.2.1.2.2
Input Capacitor Selection
8.2.1.2.3
Output Capacitor Selection
8.2.1.2.4
Sense Resistor Selection
8.2.1.2.5
Other External Components Selection
8.2.1.3
Application Curves
8.2.2
TPS922050D1 48V Input, 1A Output, 12-piece WLED Driver with PWM Dimming
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.2.2.2.1
Inductor Selection
8.2.2.2.2
Input Capacitor Selection
8.2.2.2.3
Output Capacitor Selection
8.2.2.2.4
Sense Resistor Selection
8.2.2.2.5
Other External Components Selection
8.2.2.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Receiving Notification of Documentation Updates
9.2
Support Resources
9.3
Trademarks
9.4
Electrostatic Discharge Caution
9.5
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
11.1
Package Option Addendum
11.2
Tape and Reel Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
DSG|8
MPDS308C
DRL|8
MPCS002F
Thermal pad, mechanical data (Package|Pins)
DSG|8
QFND141I
Orderable Information
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Data Sheet
TPS922050/1
65V 1A/2A
Buck
LED Driver with PWM/Analog Dimming