SLVSGH1A
April 2023 – September 2023
TPS923652
,
TPS923653
,
TPS923654
,
TPS923655
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison Table
6
Pin Configuration and 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
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Adaptive Off-Time Current Mode Control
8.3.1.1
Switching Frequency Settings
8.3.1.2
Spread Spectrum
8.3.2
Setting LED Current
8.3.3
Undervoltage Lockout
8.3.4
Internal Soft Start
8.3.5
Dimming Mode
8.3.5.1
PWM Dimming
8.3.5.2
Analog Dimming
8.3.5.3
Hybrid Dimming
8.3.5.4
Flexible Dimming
8.3.6
CC/CV Charging Mode
8.3.7
Fault Protection
8.3.8
Thermal Foldback
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
TPS923654 Boost, 12-V Input, 1-A Output, 12-piece WLED 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
Sense Resistor Selection
9.2.1.2.5
Other External Components Selection
9.2.1.3
Application Curves
9.2.2
TPS923654 Buck-Boost, 24-V Input, 2-A Output, 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
Sense Resistor Selection
9.2.2.2.5
Other External Components Selection
9.2.2.3
Application Curves
9.3
Power Supply Recommendations
9.4
Layout
9.4.1
Layout Guidelines
9.4.2
Layout Example
10
Device and Documentation Support
10.1
Receiving Notification of Documentation Updates
10.2
Support Resources
10.3
Trademarks
10.4
Electrostatic Discharge Caution
10.5
Glossary
11
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DMT|14
MPSS087B
DRR|12
MPSS085A
Thermal pad, mechanical data (Package|Pins)
DMT|14
QFND767
DRR|12
PPTD337
Orderable Information
slvsgh1a_oa
9.4.2
Layout Example
Figure 9-23
14-Pin VSON
Top View Layout Example
Figure 9-24
12-Pin WSON
Top View Layout Example
Figure 9-25
14-Pin SOT-23-TH
Top View Layout Example