SNVAA94
November 2023
LM5113-Q1
,
LMG1205
,
LMG1210
1
Abstract
Trademarks
1
Introduction
2
Bootstrap Overcharge
3
Modeling Bootstrap Overcharge
4
Changing Bootstrap Components
5
Zener Diode Method
6
Schottky Diode Method
7
Overvoltage Clamp Method
8
Active Switch Method
9
Synchronous GaN Bootstrap Method
10
Other Methods of Preventing Bootstrap Overcharge
10.1
Reducing Dead Time
10.2
Opting for a Bias Supply
10.3
Adjusting for Gate Voltage
11
Summary
12
References
12
References
Texas Instruments,
Does GaN Have a Body Diode?—Understanding the Third Quadrant Operation of GaN
Texas Instruments,
Bootstrap Circuitry Selection for Half-Bridge Configurations
, application note
Texas Instruments,
LM5113-Q1 Automotive 90-V, 1.2-A, 5-A, Half Bridge GaN Driver
, data sheet
Texas Instruments,
LMG1205 100-V, 1.2-A to 5-A, Half Bridge GaN Driver With Integrated Bootstrap Diode
, data sheet
Texas Instruments,
LMG1210 200-V, 1.5-A, 3-A Half-Bridge MOSFET and GaN FET Driver With Adjustable Dead Time for Applications Up to 50 MHz
, data sheet
Texas Instruments,
UCC12041-Q1 High-Efficiency, Low-EMI, 3-kVRMS Basic Isolation DC/DC Converter
, data sheet