UCC21225A - 4-A, 6-A, 2.5-kVRMS Isolated Dual-Channel Gate Driver in LGA

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

The input side is isolated from the two output drivers by a2.5-kV_RMS isolation barrier, with 100-V/ns minimum common-mode transientimmunity (CMTI). Internal functional isolation between the two secondary side drivers allowsworking voltage up to 700-V_DC.

This driver can be configured as two low-side, two high-side, or a half-bridge driverwith programmable dead time (DT). A disable pin shuts down both outputs simultaneously when it isset 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 to18-V makes the driver suitable for interfacing with both analog and digital controllers. All thesupply voltage pins have under voltage lock-out (UVLO) protection.

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

• 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-V_PK Isolation per DIN V VDE V 0884-11:2017-01
  • 2500-V_RMS Isolation for 1 Minute per UL 1577
  • CQC per GB4943.1-2011 (Planned)

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