SLUAAV9
March 2024
LM76003
,
UCC27282
,
UCC27288
1
Abstract
Trademarks
1
Introduction
2
Design and Potential Risk in Certain Application Scenario
3
Analysis of Potential Problem
3.1
High Duty Cycle Causes High Current Stress in Bootstrap Diode
3.1.1
Mode 1
3.1.2
Mode 2
3.1.3
Mode 3
3.1.4
Mode 4
3.2
Influence by the Extra Voltage Source
4
Design Recommendation
5
Summary
6
References
6
References
Texas Instruments,
Challenges and Solutions for Half-Bridge Gate Drivers in Bidirectional DC-DC Converters
, application note.
Texas Instruments,
Bootstrap Circuitry Selection for Half Bridge Configurations
, application note.
Texas Instruments,
UCC27282 3-A 120-V Half-Bridge Driver with Cross Conduction Protection and Low Switching Losses
, data sheet.
Texas Instruments,
LM76002/LM76003 3.5-V to 60-V, 2.5-A/3.5-A Synchronous Step-Down Voltage Regulator
, data sheet.