ZHCSKA3D September 2019 – November 2023 UCC21750-Q1
PRODUCTION DATA
- 1
- 1 特性
- 2 应用
- 3 说明
- 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
-
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
- 9.2.2.8 Higher Output Current Using an External Current Buffer
- 9.2.3 Application Curves
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
9.2 Typical Application
Figure 9-1 shows the typical application of a half bridge using two UCC21750-Q1 isolated gate drivers. The half bridge is a basic element in various power electronics applications such as traction inverter in HEV/EV to convert the DC current of the electric vehicle’s battery to the AC current to drive the electric motor in the propulsion system. The topology can also be used in motor drive applications to control the operating speed and torque of the AC motors.
Figure 9-1 Typical
Application Schematic