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Texas Instruments UCC21520/UCC21520-Q1 Dual-Channel Gate Driver

Texas Instruments UCC21520/UCC21520-Q1 Dual-Channel Gate Driver is an isolated dual-channel gate driver with a 4A source and 6A sink peak current. This device is designed to drive power MOSFETs, IGBTs, and SiC MOSFETs up to 5MHz with best-in-class propagation delay and pulse-width distortion. The input side is isolated from the two output drivers by a 5.7kVRMS reinforced isolation barrier, with a minimum of 100V/ns common-mode transient immunity (CMTI). Internal functional isolation between the two secondary-side drivers allows a working voltage of up to 1500VDC. This driver can be configured as two low-side, high-side, or half-bridge with programmable dead time (DT). A disable pin shuts down both outputs simultaneously when set high and allows normal operation when left open or grounded. As a fail-safe measure, primary-side logic failures force both outputs low. The Texas Instruments UCC21520-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • Universal (dual low-side, dual high-side, or half-bridge driver)
  • –40 to +125°C operating temperature range 
  • Switching parameters
    • 19ns typical propagation delay
    • 10ns minimum pulse width
    • 5ns maximum delay matching
    • 5ns maximum pulse-width distortion
  • Common-Mode Transient Immunity (CMTI) greater than 100V/ns
  • Surge immunity up to 12.8kV
  • Isolation barrier life > 40 years
  • 4A peak source, 6A peak sink output
  • TTL and CMOS compatible inputs
  • 3V to 18V input VCCI range to interface with both digital and analog controllers
  • Up to 25V VDD output drive supply
    • 5V, 8V, 12V VDD UVLO options
  • Programmable overlap and dead time
  • Rejects input pulses and noise transients shorter than 5ns
  • Fast disable for power sequencing
  • Industry-standard wide-body SOIC-16 (DW) package
  • Safety-related and regulatory approvals
    • 8000VPK isolation per DIN V VDE V 0884-10 (VDE V0884-10):2006-12 (planned)
    • 5700VRMS isolation for 1 minute per UL 1577
    • CSA component acceptance notice 5A, IEC 60950-1 and IEC 60601-1 end equipment standards (planned)
    • CQC certification per GB4943.1-2011 (planned)

Applications

  • Isolated converters in offline AC-to-DC power supplies
  • Server, telecom, IT, and industrial infrastructures
  • Motor drive and DC-to-AC solar inverters
  • LED lighting
  • Inductive heating
  • Uninterruptible Power Supply (UPS)
  • HEV and BEV battery chargers

Datasheets

Functional Block Diagram

Block Diagram - Texas Instruments UCC21520/UCC21520-Q1 Dual-Channel Gate Driver

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Publicado: 2016-07-26 | Actualizado: 2025-06-06