EmbeddedRelated.com
UCC21520DWR

TIUCC21520DWR

Texas Instruments
Gate Driver Capacitive Coupling 5700Vrms 2 Channel 16-SOIC
NRND17,786 in stock

Overview

The UCC21520DWR is a dual-channel isolated gate driver designed to drive MOSFET, IGBT, and SiC MOSFET power switches. It features a 5700Vrms reinforced isolation rating with a peak source current of 4A and a peak sink current of 6A. The device supports a wide output supply voltage range of 6.5V to 25V, making it suitable for high-frequency power conversion systems.

Why Choose This Part

The component offers extremely low propagation delay and fast rise/fall times of 6ns and 7ns respectively, enabling high switching frequencies. Its capacitive coupling technology provides high common-mode transient immunity (CMTI) while maintaining 5700Vrms isolation. The wide input voltage range of 3V to 18V allows for direct interfacing with both low-voltage MCUs and traditional analog controllers.

Applications

Isolated Switch-Mode Power Supplies (SMPS)
Used in AC-to-DC and DC-to-DC converters where high efficiency and safety isolation are required.
HEV/EV On-Board Chargers
Drives power transistors in high-voltage automotive charging systems with robust CMTI performance.
Solar Inverters
Provides reliable gate drive signals for bridge topologies in renewable energy power conversion.
Motor Drives
Controls high-side and low-side switches in variable frequency drives and industrial motor controllers.

Key Specifications

Technology Capacitive Coupling
Mounting Type Surface Mount
Package / Case 16-SOIC (0.295", 7.50mm Width)
Approval Agency CQC, CSA, UR, VDE
Number of Channels 2
Voltage - Isolation 5700Vrms
Operating Temperature -40degC ~ 125degC
Rise / Fall Time (Typ) 6ns, 7ns
Supplier Device Package 16-SOIC
Voltage - Output Supply 6.5V ~ 25V
Current - Output High, Low 4A, 6A
Pulse Width Distortion (Max) 6ns
Propagation Delay tpLH / tpHL (Max) 30ns, 30ns
Common Mode Transient Immunity (Min) 100V/ns

Getting Started

To evaluate this driver, engineers typically use the UCC21520EVM-286 evaluation module which provides a hardware platform for testing switching performance. Ensure that decoupling capacitors are placed as close as possible to the VDD and VCCI pins to minimize noise. Follow PCB layout guidelines for high-voltage creepage and clearance as specified for the 16-SOIC package.

UCC21520 Family

Part NumberDifferenceStock
UCC21520ADWR ADWR 2,159