Home Power management Gate drivers Isolated gate drivers

UCC21520

ACTIVE

5.7kVrms, 4A/6A dual-channel isolated gate driver w/ dual input, disable pin, 8V UVLO in DW package

Product details

Number of channels 2 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5700 Working isolation voltage (VIOWM) (Vrms) 2121 Transient isolation voltage (VIOTM) (VPK) 8000 Power switch IGBT, MOSFET, SiCFET Peak output current (A) 6 Features Disable, Programmable dead time Output VCC/VDD (max) (V) 25 Output VCC/VDD (min) (V) 6.5, 9.2 Input VCC (min) (V) 3 Input VCC (max) (V) 18 Propagation delay time (µs) 0.019 Input threshold CMOS, TTL Operating temperature range (°C) -40 to 125 Rating Catalog Bus voltage (max) (V) 2121 Rise time (ns) 6 Fall time (ns) 7 Undervoltage lockout (typ) (V) 5, 8
Number of channels 2 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5700 Working isolation voltage (VIOWM) (Vrms) 2121 Transient isolation voltage (VIOTM) (VPK) 8000 Power switch IGBT, MOSFET, SiCFET Peak output current (A) 6 Features Disable, Programmable dead time Output VCC/VDD (max) (V) 25 Output VCC/VDD (min) (V) 6.5, 9.2 Input VCC (min) (V) 3 Input VCC (max) (V) 18 Propagation delay time (µs) 0.019 Input threshold CMOS, TTL Operating temperature range (°C) -40 to 125 Rating Catalog Bus voltage (max) (V) 2121 Rise time (ns) 6 Fall time (ns) 7 Undervoltage lockout (typ) (V) 5, 8
SOIC (DW) 16 106.09 mm² 10.3 x 10.3
  • 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
    • 6-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
  • 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
    • 6-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

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.

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.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 25
Type Title Date
* Data sheet UCC21520 4-A, 6-A, 5.7-kVRMS Isolated Dual-Channel Gate Driver datasheet (Rev. E) PDF | HTML 17 Dec 2021
White paper Understanding failure modes in isolators (Rev. B) PDF | HTML 29 Jan 2024
Application note Impact of Narrow Pulse Widths in Gate Driver Circuits (Rev. A) PDF | HTML 25 Jan 2024
Technical article For efficiencies’ sake – how to integrate bidirectional power flow into your UPS design (part 1) PDF | HTML 11 Jan 2024
Certificate UCC215xx CQC Certificate of Product Certification 17 Aug 2023
Certificate UCC21520 CQC Certificate of Product Certification (Rev. A) 16 Aug 2023
Certificate UL Certification E181974 Vol 4. Sec 7 (Rev. C) 02 Dec 2022
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. R) 12 Jul 2022
Application brief The Use and Benefits of Ferrite Beads in Gate Drive Circuits PDF | HTML 16 Dec 2021
EVM User's guide Using the UCC21520EVM-286, UCC21521CEVM-286, and UCC21530EVM286 User's Guide (Rev. C) PDF | HTML 21 Oct 2021
E-book Ein Techniker-Leitfaden für Industrieroboter-Designs 25 Mar 2020
Application brief External Gate Resistor Selection Guide (Rev. A) 28 Feb 2020
Application brief Understanding Peak IOH and IOL Currents (Rev. A) 28 Feb 2020
E-book E-book: An engineer’s guide to industrial robot designs 12 Feb 2020
Certificate CSA Product Certificate (Rev. A) 15 Aug 2019
White paper Impact of an isolated gate driver (Rev. A) 20 Feb 2019
White paper Driving the future of HEV/EV with high-voltage solutions (Rev. B) 16 May 2018
Technical article For efficiencies’ sake – how to integrate bidirectional power flow (part 2) PDF | HTML 19 Sep 2017
Technical article Making a solar inverter more reliable than the sun PDF | HTML 01 Aug 2017
White paper Cities grow smarter through innovative semiconductor technologies 07 Jul 2017
Technical article Pile on to a charger – my EV needs power PDF | HTML 20 Dec 2016
Technical article Staying cool, efficiently PDF | HTML 22 Aug 2016
Technical article How to reduce system cost in a three-phase IGBT-based inverter design PDF | HTML 08 Aug 2016
Technical article Why is the cloud isolated? PDF | HTML 18 Jul 2016
Application note UCC21520, a Universal Isolated Gate Driver with Fast Dynamic Response (Rev. A) PDF | HTML 05 Jul 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TIEVM-VIENNARECT — Vienna rectifier-based three-phase power factor correction evaluation module using C2000™ MCUs

The Vienna rectifier power topology is used in high power three phase power factor (AC-DC) applications such as off-board electric vehicle (EV) chargers and telecom rectifiers. This design illustrates how to control the power stage using C2000™ MCUs. This design uses an HSEC180 controlCARD (...)
Not available on TI.com
Evaluation board

UCC21520EVM-286 — UCC21520 4A/6A isolated dual-channel gate driver evaluation module

UCC21520EVM-286 is designed for evaluating UCC21520DW, which is an isolated dual-channel gate driver with 4-A source and 6-A sink peak current capability. This EVM could be served as a reference design for driving power MOSFETS, IGBTS, and SiC MOSFETS with UCC21520 pin function identification, (...)

User guide: PDF | HTML
Not available on TI.com
Simulation model

UCC21520 PSpice Transient Model

SLUM544.ZIP (59 KB) - PSpice Model
Simulation model

UCC21520 TINA-TI Reference Design

SLUM552.TSC (168 KB) - TINA-TI Reference Design
Simulation model

UCC21520 TINA-TI Transient Spice Model

SLUM551.ZIP (23 KB) - TINA-TI Spice Model
Simulation model

UCC21520 Unencrypted PSpice Transient Model

SLUM543.ZIP (3 KB) - PSpice Model
Calculation tool

SLURAZ5 UCC21520 Bootstrap Calculator 1.0

Supported products & hardware

Supported products & hardware

Products
Isolated gate drivers
UCC21220 3.0kVrms, 4A/6A dual-channel isolated gate driver with disable pin & 8V UVLO for MOSFETs & GaNFETs UCC21222 3.0kVrms 4A/6A dual-channel isolated gate driver with disable pin, programmable deadtime & 8V UVLO UCC21520 5.7kVrms, 4A/6A dual-channel isolated gate driver w/ dual input, disable pin, 8V UVLO in DW package UCC21521 5.7kVrms, 4A/6A dual-channel isolated gate driver with dual input, enable, 8V UVLO & LGA pack
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Reference designs

TIDM-1000 — Vienna Rectifier-Based Three Phase Power Factor Correction Reference Design Using C2000 MCU

Vienna rectifier power topology is used in high power three phase power factor (AC-DC) applications such as off board EV chargers and telecom rectifiers. Control design of the rectifier can be complex. This design illustrates a method to control the power stage using C2000™ microcontrollers (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01540 — Three-Phase Inverter Reference Design Using Gate Driver With Built-in Dead Time Insertion

The TIDA-01540 reference design reduces system cost and enables a compact design for a reinforced isolated 10kW three phase inverter. A lower system cost and compact form factor is achieved by using a dual gate driver in a single package and bootstrap configuration to generate floating voltages (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01541 — High-Bandwidth Phase Current and DC-Link Voltage Sensing Reference Design for Three-Phase Inverters

The TIDA-01541 reference design reduces system cost and enables a compact design for isolated phase current and DC link voltage measurement in three-phase inverters, while achieving high bandwidth and sensing accuracy. The output of the isolated amplifiers is interfaced to the internal ADC of the (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-01159 — Compact, Half-Bridge, Reinforced Isolated Gate Drive Reference Design

This reference design is a half-bridge isolated gated driver used in driving power stages of UPS, inverters, server and telecom applications. This reference design is based on the UCC21520 reinforced insulated gate driver and is capable of driving MOSFETs and SiC-FETs. The design (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
SOIC (DW) 16 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos