UCC21520 4-A/6-A, 5.7-kVRMS dual-channel isolated gate driver with 8-V UVLO, dual input, disable pin | TI.com

UCC21520
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
4-A/6-A, 5.7-kVRMS dual-channel isolated gate driver with 8-V UVLO, dual input, disable pin

 

Recommended alternative parts

  • UCC21540  -  This device is optimized for digital controllers and Si MOSFET applications.

Description

The UCC21520 and the UCC21520A are isolated dual-channel gate drivers with 4-A source and 6-A sink peak current. It is designed to drive power MOSFETs, IGBTs, and SiC MOSFETs 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 5.7-kVRMS reinforced isolation barrier, with a minimum of 100-V/ns common-mode transient immunity (CMTI). Internal functional isolation between the two secondary-side drivers allows a working voltage of up to 1500 VDC.

Every driver can be configured as two low-side drivers, two high-side drivers, 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. As a fail-safe measure, primary-side logic failures force both outputs low.

Each 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 UCC21520 and the UCC21520A enable high efficiency, high power density, and robustness in a wide variety of power applications.

Features

  • Universal: dual low-side, dual high-side or half-bridge driver
  • Operating temperature range –40 to +125°C
  • Switching parameters:
    • 19-ns typical propagation delay
    • 10-ns minimum pulse width
    • 5-ns maximum delay matching
    • 5-ns maximum pulse-width distortion
  • Common-mode transient immunity (CMTI) greater than 100 V/ns
  • Surge Immunity up to 12.8 kV
  • Isolation barrier life >40 Years
  • 4-A peak source, 6-A peak sink output
  • TTL and CMOS compatible inputs
  • 3-V to 18-V input VCCI range to interface with both digital and analog controllers
  • Up to 25-V VDD output drive supply
    • 5-V and 8-V VDD UVLO options
  • Programmable overlap and dead time
  • Rejects input pulses and noise transients shorter than 5 ns
  • Fast disable for power sequencing
  • Industry standard wide body SOIC-16 (DW) package
  • Safety-related certifications:
    • 8000-VPK Reinforced Isolation per DIN V VDE V 0884-11:2017-01
    • 5.7-kVRMS Isolation for 1 minute per UL 1577
    • CSA Certification per IEC 60950-1, IEC 62368-1, IEC 61010-1 and IEC 60601-1 End Equipment Standards
    • CQC certification per GB4943.1-2011

All trademarks are the property of their respective owners.

Parametrics

Compare all products in Isolated gate drivers Email Download to Excel
Part number Order Isolation rating (Vrms) DIN V VDE V 0884-10 transient overvoltage rating (Vpk) DIN V VDE V 0884-10 working voltage (Vpk) Number of channels (#) Power switch Enable/disable function Output VCC/VDD (Max) (V) Output VCC/VDD (Min) (V) Input VCC (Min) (V) Input VCC (Max) (V) Peak output current (A) Prop delay (ns) Operating temperature range (C) Package Group
UCC21520 Order now 5700     8000     2121     2     IGBT
MOSFET
GaNFET    
Disable     25     9.2
6.5    
3     18     6     19     -40 to 125     SOIC | 16    
UCC21530 Order now 5700     8000     2121     2     IGBT
SiCFET    
Enable     25     14.7     3     18     6     19     -40 to 125     SOIC | 14    
UCC21540 Order now 5700     8000     1414     2     MOSFET
IGBT
GaNFET    
Disable     18     9.2     3     5.5     6     28     -40 to 125     SOIC | 14
SOIC | 16    
UCC21540A Order now 5700     8000     1414     2     MOSFET
GaNFET    
Disable     18     6.0     3     5.5     6     28     -40 to 125     SOIC | 14    
UCC21541 Order now 5000     7070     1414     2     MOSFET
IGBT
GaNFET    
Disable     18     9.2     3     5.5     2.5     28     -40 to 125     SOIC | 16