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UCC21520-Q1

ACTIVE

Automotive Reinforced, 4A/6A dual-channel isolated gate driver w/ disable, programmable deadtime

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UCC21550-Q1 ACTIVE Automotive Reinforced, 4A/6A dual-channel isolated gate driver w/ disable, programmable deadtime Tighter VCCI range supporting digital controller thresholds. New DT equation. Increased CMTI and wider operating temperature range.

UCC21520-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 2 Isolation rating Reinforced Power switch IGBT, MOSFET, SiCFET Withstand isolation voltage (VISO) (Vrms) 5700 Working isolation voltage (VIOWM) (Vrms) 1500 Transient isolation voltage (VIOTM) (VPK) 8000 Peak output current (A) 6 Peak output current (source) (typ) (A) 4 Peak output current (sink) (typ) (A) 6 Features Disable, Programmable dead time Output VCC/VDD (min) (V) 6.5, 9.2 Output VCC/VDD (max) (V) 25 Input supply voltage (min) (V) 3 Input supply voltage (max) (V) 18 Propagation delay time (µs) 0.019 Input threshold CMOS, TTL Operating temperature range (°C) -40 to 125 Rating Automotive Bootstrap supply voltage (max) (V) 2121 Rise time (ns) 6 Fall time (ns) 8 Undervoltage lockout (typ) (V) 5, 8 TI functional safety category Functional Safety Quality-Managed
Number of channels 2 Isolation rating Reinforced Power switch IGBT, MOSFET, SiCFET Withstand isolation voltage (VISO) (Vrms) 5700 Working isolation voltage (VIOWM) (Vrms) 1500 Transient isolation voltage (VIOTM) (VPK) 8000 Peak output current (A) 6 Peak output current (source) (typ) (A) 4 Peak output current (sink) (typ) (A) 6 Features Disable, Programmable dead time Output VCC/VDD (min) (V) 6.5, 9.2 Output VCC/VDD (max) (V) 25 Input supply voltage (min) (V) 3 Input supply voltage (max) (V) 18 Propagation delay time (µs) 0.019 Input threshold CMOS, TTL Operating temperature range (°C) -40 to 125 Rating Automotive Bootstrap supply voltage (max) (V) 2121 Rise time (ns) 6 Fall time (ns) 8 Undervoltage lockout (typ) (V) 5, 8 TI functional safety category Functional Safety Quality-Managed
SOIC (DW) 16 106.09 mm² (10.3 mm × 10.3 mm)
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1
  • Functional safety quality-managed
  • Junction temperature range –40 to +150°C
  • Switching parameters:
    • 33ns typical propagation delay
    • 20ns minimum pulse width
    • 6ns maximum pulse-width distortion
  • Common-mode transient immunity (CMTI) greater than 125V/ns
  • Surge immunity up to 10kV
  • Isolation barrier life >40 years
  • 4A peak source, 6A peak sink output
  • 3V to 18V input VCCI range to interface with both digital and analog controllers
  • Up to 25V VDD output drive supply
    • 5V and 8V VDD UVLO options
  • Programmable overlap and dead time
  • Fast disable for power sequencing
  • Safety-related certifications:
    • 8000VPK reinforced Isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5.7kVRMS 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 GB4943.1-2022
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1
  • Functional safety quality-managed
  • Junction temperature range –40 to +150°C
  • Switching parameters:
    • 33ns typical propagation delay
    • 20ns minimum pulse width
    • 6ns maximum pulse-width distortion
  • Common-mode transient immunity (CMTI) greater than 125V/ns
  • Surge immunity up to 10kV
  • Isolation barrier life >40 years
  • 4A peak source, 6A peak sink output
  • 3V to 18V input VCCI range to interface with both digital and analog controllers
  • Up to 25V VDD output drive supply
    • 5V and 8V VDD UVLO options
  • Programmable overlap and dead time
  • Fast disable for power sequencing
  • Safety-related certifications:
    • 8000VPK reinforced Isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5.7kVRMS 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 GB4943.1-2022

The UCC21520-Q1 is an isolated dual-channel gate driver with 4A source and 6A sink peak current. It is designed to drive power MOSFETs, IGBTs, and SiC MOSFETs up to 5MHz.

The input side is isolated from the two output drivers by a 5.7kVRMS reinforced isolation barrier, with a minimum of 125V/ns common-mode transient immunity (CMTI). Internal functional isolation between the two secondary-side drivers allows a working voltage of up to 1500VDC.

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 , 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 25V. A wide input VCCI range from 3V to 18V makes the driver suitable for interfacing with both analog and digital controllers. All supply voltage pins have under voltage lock-out (UVLO) protection.

With all these advanced features, the UCC21520-Q1 enables high efficiency, high power density, and robustness.

The UCC21520-Q1 is an isolated dual-channel gate driver with 4A source and 6A sink peak current. It is designed to drive power MOSFETs, IGBTs, and SiC MOSFETs up to 5MHz.

The input side is isolated from the two output drivers by a 5.7kVRMS reinforced isolation barrier, with a minimum of 125V/ns common-mode transient immunity (CMTI). Internal functional isolation between the two secondary-side drivers allows a working voltage of up to 1500VDC.

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 , 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 25V. A wide input VCCI range from 3V to 18V makes the driver suitable for interfacing with both analog and digital controllers. All supply voltage pins have under voltage lock-out (UVLO) protection.

With all these advanced features, the UCC21520-Q1 enables high efficiency, high power density, and robustness.
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UCC21540-Q1 ACTIVE Automotive Reinforced, 4A/6A dual-channel isolated gate driver w/ disable, programmable deadtime Increased output channel-to-channel spacing; lower VDD range

Technical documentation

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Top documentation Type Title Format options Date
* Data sheet UCC21520-Q1 4A, 6A, 5.7kVRMS Isolated Dual-Channel Gate Driver for Automotive datasheet (Rev. E) PDF | HTML Jun 17, 2024
* User guide Gate Drive Voltage vs. Efficiency Apr 25, 2019
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) Jul 15, 2026
Certificate UL Certification E181974 Vol 4. Sec 7 (Rev. D) Sep 8, 2025
Application note Impact of Narrow Pulse Widths in Gate Driver Circuits (Rev. A) PDF | HTML Jan 25, 2024
Certificate UCC215xx CQC Certificate of Product Certification PDF | HTML Aug 17, 2023
Certificate UCC21520 CQC Certificate of Product Certification (Rev. A) PDF | HTML Aug 16, 2023
Application brief The Use and Benefits of Ferrite Beads in Gate Drive Circuits PDF | HTML Dec 16, 2021
More literature Protecting Power Devices in Electric Vehicle Applications Mar 23, 2021
Application brief External Gate Resistor Selection Guide (Rev. A) Feb 28, 2020
Application brief Understanding Peak IOH and IOL Currents (Rev. A) Feb 28, 2020
Certificate CSA Product Certificate (Rev. A) Aug 15, 2019
White paper Driving the future of HEV/EV with high-voltage solutions (Rev. B) May 16, 2018
Application brief Reducing Switching Losses in On-Board Chargers for Electric Vehicles Mar 27, 2018
White paper Cities grow smarter through innovative semiconductor technologies Jul 7, 2017
White paper Charging stations: Toward an EV support infrastructure May 9, 2017
Application note UCC21520, a Universal Isolated Gate Driver with Fast Dynamic Response (Rev. A) PDF | HTML Jul 5, 2016

Design & development

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

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
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Simulation model

UCC21520 PSpice Transient Model

SLUM544.ZIP (59 KB) - PSpice model
Supported products & hardware
Simulation model

UCC21520 TINA-TI Reference Design

SLUM552.TSC (168 KB) - TINA-TI reference design
Supported products & hardware
Simulation model

UCC21520 TINA-TI Transient Spice Model

SLUM551.ZIP (23 KB) - TINA-TI Spice model
Supported products & hardware
Simulation model

UCC21520 Unencrypted PSpice Transient Model

SLUM543.ZIP (3 KB) - PSpice model
Supported products & hardware
Reference design

TIDA-01604 — 98.6% Efficiency, 6.6-kW Totem-Pole PFC Reference Design for HEV/EV Onboard Charger

This reference design functions from a base of silicon carbide (SiC) MOSFETs that are driven by a C2000 microcontroller (MCU) with SiC-isolated gate drivers. The design implements three-phase interleaving and operates in continuous conduction mode (CCM) to achieve a 98.46% efficiency at a 240-V (...)
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SOIC (DW) 16 Ultra Librarian
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