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TPS61197 Single-String White-LED Driver for LCD TV
SLVSC25B
July 2013 – June 2017
TPS61197
PRODUCTION DATA.
CONTENTS
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TPS61197 Single-String White-LED Driver for LCD TV
1
Features
2
Applications
3
Description
4
Revision History
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
Switching Characteristics
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Supply Voltage
7.3.2
Boost Controller
7.3.3
Switching Frequency
7.3.4
Enable and Undervoltage Lockout
7.3.5
Power-Up Sequencing and Soft Start-up
7.3.6
Current Regulation
7.3.7
PWM Dimming
7.3.8
Indication for Fault Conditions
7.4
Device Functional Modes
7.4.1
Protections
7.4.1.1
Switch Current Limit Protection Using the ISNS Pin
7.4.1.2
LED Open Protection
7.4.1.3
Schottky Diode Open Protection
7.4.1.4
Schottky Diode Short Protection
7.4.1.5
IFB Overvoltage Protection
7.4.1.6
Output Overvoltage Protection Using the OVP Pin
7.4.1.7
IFB Short-to-Ground Protection
7.4.1.8
Thermal Shutdown
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Simple Boost Converter
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
Output Capacitor
8.2.1.2.3
Schottky Diode
8.2.1.2.4
Switch MOSFET and Gate Driver Resistor
8.2.1.2.5
Current Sense and Current Sense Filtering
8.2.1.2.6
Loop Consideration
8.2.1.3
Application Curves
8.2.2
PWM Dimming Controlled by Boost Converter
8.2.3
High Boost Ratio Application
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Receiving Notification of Documentation Updates
11.2
Community Resources
11.3
Trademarks
11.4
Electrostatic Discharge Caution
11.5
Glossary
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
パッケージ・オプション
メカニカル・データ（パッケージ｜ピン）
D|16
MPDS178G
サーマルパッド・メカニカル・データ
発注情報
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