SLUSCQ2E
October 2017 – June 2024
UCC21520-Q1
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings (Automotive)
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Power Ratings
5.6
Insulation Specifications
5.7
Safety Limiting Values
5.8
Electrical Characteristics
5.9
Timing Requirements
5.10
Switching Characteristics
5.11
Insulation Characteristics Curves
5.12
Typical Characteristics
6
Parameter Measurement Information
6.1
Propagation Delay and Pulse Width Distortion
6.2
Rising and Falling Time
6.3
Input and Disable Response Time
6.4
Programable Dead Time
6.5
Power-up UVLO Delay to OUTPUT
6.6
CMTI Testing
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
VDD, VCCI, and Undervoltage Lock Out (UVLO)
7.3.2
Input and Output Logic Table
7.3.3
Input Stage
7.3.4
Output Stage
7.3.5
Diode Structure in the UCC21520-Q1
7.4
Device Functional Modes
7.4.1
Disable Pin
7.4.2
Programmable Dead-Time (DT) Pin
7.4.2.1
Tying the DT Pin to VCC
7.4.2.2
DT Pin Connected to a Programming Resistor Between DT and GND Pins
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Designing INA/INB Input Filter
8.2.2.2
Select External Bootstrap Diode and its Series Resistor
8.2.2.3
Gate Driver Output Resistor
8.2.2.4
Gate to Source Resistor Selection
8.2.2.5
Estimate Gate Driver Power Loss
8.2.2.6
Estimating Junction Temperature
8.2.2.7
Selecting VCCI, VDDA/B Capacitor
8.2.2.7.1
Selecting a VCCI Capacitor
8.2.2.7.2
Selecting a VDDA (Bootstrap) Capacitor
8.2.2.7.3
Select a VDDB Capacitor
8.2.2.8
Dead Time Setting Guidelines
8.2.2.9
Application Circuits with Output Stage Negative Bias
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Third-Party Products Disclaimer
11.2
Documentation Support
11.2.1
Related Documentation
11.3
Certifications
11.4
Receiving Notification of Documentation Updates
11.5
Support Resources
11.6
Trademarks
11.7
Electrostatic Discharge Caution
11.8
Glossary
12
Revision History
13
Mechanical, Packaging, and Orderable Information
Data Sheet
UCC21520-Q1
4A, 6A, 5.7kV
RMS
Isolated Dual-Channel Gate Driver
for Automotive