UCC21520 4A/6A, 5.7 kVrms Isolated Dual Channel Gate Driver | TI.com

UCC21520
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4A/6A, 5.7 kVrms Isolated Dual Channel Gate Driver

 

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 driver 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

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Parametrics

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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