描述 Description

The UCC21225A is an isolated dual-channel gate driver with 4-A source and 6-A sink peak current in a 5-mm x 5-mm LGA-13 package. It is designed to drive power transistors up to 5-MHz with best-in-class propagation delay and pulse-width distortion.

The input side is isolated from the two output drivers by a 2.5-kVRMS isolation barrier, with 100-V/ns minimum common-mode transient immunity (CMTI). Internal functional isolation between the two secondary side drivers allows working voltage up to 700-VDC.

This driver can be configured as two low-side, two high-side, or a half-bridge driver with programmable dead time (DT). A disable pin shuts down both outputs simultaneously when it is set high, and allows normal operation when left open or grounded.

The device accepts VDD supply voltages up to 25-V. A wide input VCCI range from 3-V to 18-V makes the driver suitable for interfacing with both analog and digital controllers. All the supply voltage pins have under voltage lock-out (UVLO) protection.

With all these advanced features, the UCC21225A enables high power density, high efficiency, and robustness in a wide variety of power applications.

特性 Features

? Universal: Dual Low-Side, Dual High-Side or Half-Bridge Driver
? 5 x 5 mm, Space-Saving LGA-13 Package
? Switching Parameters:
? 19-ns Typical Propagation Delay
? 5-ns Maximum Delay Matching
? 6-ns Maximum Pulse-Width Distortion

? CMTI Greater than 100-V/ns
? 4-A Peak Source, 6-A Peak Sink Output
? TTL and CMOS Compatible Inputs
? 3-V to 18-V Input VCCI Range
? Up to 25-V VDD with 5-V UVLO
? Programmable Overlap and Dead Time
? Rejects Input Transients Shorter than 5-ns
? Fast Disable for Power Sequencing
? Safety-Related Certifications:
? 3535-VPK Isolation per DIN V VDE V 0884-11:2017-01
? 2500-VRMS Isolation for 1 Minute per UL 1577
? CQC per GB4943.1-2011 (Planned)