SLUSDE1E
September 2018 – November 2024
UCC21540
,
UCC21540A
,
UCC21541
,
UCC21542
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Device Comparison Table
5
Pin Configuration and Functions
5.1
Pin Configuration and Functions
5.2
UCC21542 Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Power Ratings
6.6
Insulation Specifications
6.7
Safety-Limiting Values
6.8
Electrical Characteristics
6.9
Switching Characteristics
6.10
Insulation Characteristics Curves
6.11
Typical Characteristics
7
Parameter Measurement Information
7.1
Minimum Pulses
7.2
Propagation Delay and Pulse Width Distortion
7.3
Rising and Falling Time
7.4
Input and Disable Response Time
7.5
Programmable Dead Time
7.6
Power-Up UVLO Delay to OUTPUT
7.7
CMTI Testing
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
VDD, VCCI, and Under Voltage Lock Out (UVLO)
8.3.2
Input and Output Logic Table
8.3.3
Input Stage
8.3.4
Output Stage
8.3.5
Diode Structure in the UCC2154x
8.4
Device Functional Modes
8.4.1
Disable Pin
8.4.2
Programmable Dead Time (DT) Pin
8.4.2.1
DT Pin Tied to VCCI
8.4.2.2
Connecting a Programming Resistor between DT and GND Pins
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Designing INA/INB Input Filter
9.2.2.2
Select Dead Time Resistor and Capacitor
9.2.2.3
Select External Bootstrap Diode and Its Series Resistor
9.2.2.4
Gate Driver Output Resistor
9.2.2.5
Gate to Source Resistor Selection
9.2.2.6
Estimating Gate Driver Power Loss
9.2.2.7
Estimating Junction Temperature
9.2.2.8
Selecting VCCI, VDDA/B Capacitor
9.2.2.8.1
Selecting a VCCI Capacitor
9.2.2.8.2
Selecting a VDDA (Bootstrap) Capacitor
9.2.2.8.3
Select a VDDB Capacitor
9.2.2.9
Application Circuits with Output Stage Negative Bias
9.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.1.1
Component Placement Considerations
11.1.2
Grounding Considerations
11.1.3
High-Voltage Considerations
11.1.4
Thermal Considerations
11.2
Layout Example
12
Device and Documentation Support
12.1
Third-Party Products Disclaimer
12.2
Documentation Support
12.2.1
Related Documentation
12.3
Receiving Notification of Documentation Updates
12.4
Support Resources
12.5
Trademarks
12.6
Electrostatic Discharge Caution
12.7
Glossary
13
Revision History
14
Mechanical, Packaging, and Orderable Information
6
Specifications