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[FAQ] UCC21220A: Isolated Gate Driver in narrow-body SOIC for basic and functional isolation applications enhances system efficiency, solution size, and reliability

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Part Number: UCC21220A

Power supply designers are often challenged to make their systems solutions more efficient, more reliable, and smaller in size, while still maintaining competitive pricing.

Texas Instruments UCC21220A family of dual channel isolated gate drivers in narrow body SOIC-16 package accommodates and addresses the following requirements from power supply design engineers:

UCC21220A Key Features

Problems Solved

Fast switching, accurate & predictable timing
  • 4A Peak Source, 6A Peak Sink Output
  • Switching Parameters:
    • 28-ns Typical Propagation Delay
    • 10-ns Minimum Pulse Width
    • 5-ns Maximum Delay Matching
    • 5.5-ns Maximum Pulse-Width Distortion

Higher system efficiency & higher power density

Providing best in class propagation delays to improve efficiency and increase operating frequencies to reduce solutions sizes

Robustness against switching noise and ground bouncing
  • Common-Mode Transient Immunity (CMTI) Greater than 100V/ns
  • Outputs withstand –2V for 200 ns
  • 5V (UCC21220A) and 8V (UCC21220)
    VDD UVLO Options for switch protection
  • Rejects Input Pulses and Noise Transients Shorter than 5-ns

Higher Reliability & Robustness to extend product lifetime

Ability to handle harsh conditions on the applications

Protection: Functional and basic isolation
  • Input to output 3.0kVRMS isolation barrier
  • 1.5-kV Channel-to-Channel Functional Isolation
  • Isolation Barrier Life >40 Years
  • Surge Immunity up to 7800-VPK

Ease of implementation through simplified safety approval

Device level (DIN V VDE V 0884-11, DIN EN 61010-1 and UL 1577)
End Equipment Standards (IEC 60950-1, IEC 62368-1 and IEC 61010-1)
CQC Certification per GB4943.1-2011

The UCC21220A family is designed with the following applications in mind:

  • Telecom and Merchant Power Supplies
  • AC-to-DC and DC-to-DC Power Supplies
  • Solar Inverters and Solar Power Optimizers
  • Remote Radio Units and Brick Modules
  • Motor Drives and Industrial Transport

Do you have any questions on how to implement UCC21220A in your design? Please post to E2E so our experts can help address your needs.

For additional information or if you would like to order samples please follow the respective links:

Derek Payne

Texas Instruments