SLUSD78C
February 2019 – January 2023
UCC21750
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and 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
Safety-Related Certifications
6.10
Switching Characteristics
6.11
Insulation Characteristics Curves
6.12
Typical Characteristics
7
Parameter Measurement Information
7.1
Propagation Delay
7.1.1
Regular Turn-OFF
7.2
Input Deglitch Filter
7.3
Active Miller Clamp
7.3.1
Internal On-chip Active Miller Clamp
7.4
Undervoltage Lockout (UVLO)
7.4.1
VCC UVLO
7.4.2
VDD UVLO
7.5
Desaturation (DESAT) Protection
7.5.1
DESAT Protection with Soft Turn-OFF
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Power Supply
8.3.2
Driver Stage
8.3.3
VCC and VDD Undervoltage Lockout (UVLO)
8.3.4
Active Pulldown
8.3.5
Short Circuit Clamping
8.3.6
Internal Active Miller Clamp
8.3.7
Desaturation (DESAT) Protection
8.3.8
Soft Turn-Off
8.3.9
Fault (FLT, Reset, and Enable (RST/EN)
8.3.10
Isolated Analog to PWM Signal Function
8.4
Device Functional Modes
9
Applications 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
Input Filters for IN+, IN–, and RST/EN
9.2.2.2
PWM Interlock of IN+ and IN–
9.2.2.3
FLT, RDY, and RST/EN Pin Circuitry
9.2.2.4
RST/EN Pin Control
9.2.2.5
Turn-On and Turn-Off Gate Resistors
9.2.2.6
Overcurrent and Short Circuit Protection
9.2.2.7
Isolated Analog Signal Sensing
9.2.2.7.1
Isolated Temperature Sensing
9.2.2.7.2
Isolated DC Bus Voltage Sensing
9.2.2.8
Higher Output Current Using an External Current Buffer
9.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Device Support
12.1.1
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
Mechanical, Packaging, and Orderable Information
9.2.2
Detailed Design Procedure