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

UCC21520 (ACTIVE)

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

 

Description

The UCC21520 is an 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.

This 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.

The 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 enables 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, 8-V, 12-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 and Regulatory Approvals:
    • 8000-VPK Isolation per DIN V VDE V 0884-10 (VDE V0884-10):2006-12 (Planned)
    • 5700-VRMS 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)

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Parametrics Compare all products in Isolated Gate Driver

 
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)
Prop Delay (Max) (ns)
Operating Temperature Range (C)
Package Group
UCC21520 UCC21520A UCC20225 UCC20520 UCC21225A UCC21521
5700    5700    2500    5700    2500    5700   
8000    8000    3535    8000    3535    8000   
2121    2121    792    2121    792    2121   
2    2    2    2    2    2   
MOSFET    MOSFET    MOSFET    MOSFET    MOSFET    MOSFET   
Disable    DISABLE    DISABLE    DISABLE    DISABLE    Enable   
25    25    25    25    25    25   
9.2    6.5    9.2    9.2    6.5    9.2   
3    3    3    3    3    3   
18    18    18    18    18    18   
6    6    6    6    6    6   
19    19    19    19    19    19   
30    30    30    30    30    30   
-40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
SOIC    SOIC    VLGA    SOIC    VLGA    SOIC