SLUSDE1D
November 2018 – February 2021
UCC21540
,
UCC21540A
,
UCC21541
,
UCC21542
PRODMIX
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
UCC21540, UCC21541 Pin Functions
UCC21542 Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Power Ratings
7.6
Insulation Specifications
7.7
Safety-Related Certifications
7.8
Safety-Limiting Values
7.9
Electrical Characteristics
7.10
Switching Characteristics
7.11
Insulation Characteristics Curves
7.12
Typical Characteristics
8
Parameter Measurement Information
8.1
Minimum Pulses
8.2
Propagation Delay and Pulse Width Distortion
8.3
Rising and Falling Time
8.4
Input and Disable Response Time
8.5
Programmable Dead Time
8.6
Power-up UVLO Delay to OUTPUT
8.7
CMTI Testing
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
VDD, VCCI, and Under Voltage Lock Out (UVLO)
9.3.2
Input and Output Logic Table
9.3.3
Input Stage
9.3.4
Output Stage
9.3.5
Diode Structure in the UCC2154x
9.4
Device Functional Modes
9.4.1
Disable Pin
9.4.2
Programmable Dead Time (DT) Pin
9.4.2.1
DT Pin Tied to VCCI
9.4.2.2
Connecting a Programming Resistor between DT and GND Pins
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.2.1
Designing INA/INB Input Filter
10.2.2.2
Select Dead Time Resistor and Capacitor
10.2.2.3
Select External Bootstrap Diode and its Series Resistor
10.2.2.4
Gate Driver Output Resistor
10.2.2.5
Gate to Source Resistor Selection
10.2.2.6
Estimating Gate Driver Power Loss
10.2.2.7
Estimating Junction Temperature
10.2.2.8
Selecting VCCI, VDDA/B Capacitor
10.2.2.8.1
Selecting a VCCI Capacitor
10.2.2.8.2
Selecting a VDDA (Bootstrap) Capacitor
10.2.2.8.3
Select a VDDB Capacitor
10.2.2.9
Application Circuits with Output Stage Negative Bias
10.2.3
Application Curves
11
Power Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.1.1
Component Placement Considerations
12.1.2
Grounding Considerations
12.1.3
High-Voltage Considerations
12.1.4
Thermal Considerations
12.2
Layout Example
13
Device and Documentation Support
13.1
Documentation Support
13.1.1
Related Documentation
13.2
Receiving Notification of Documentation Updates
13.3
Support Resources
13.4
Trademarks
13.5
Electrostatic Discharge Caution
13.6
Glossary
14
Mechanical, Packaging, and Orderable Information
13.1
Documentation Support