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UCC27517A-Q1

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Automotive 4-A/4-A single-channel gate driver with 5-V UVLO and dual-input structure

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Data sheet

UCC27517A-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Power switch GaNFET, IGBT, MOSFET Peak output current (A) 4 Input supply voltage (min) (V) 4.5 Input supply voltage (max) (V) 18 Features Hysteretic Logic Operating temperature range (°C) -40 to 125 Rise time (ns) 9 Fall time (ns) 7 Propagation delay time (µs) 0.013 Input threshold CMOS, TTL Channel input logic Inverting, Non-Inverting Input negative voltage (V) -5 Rating Automotive Undervoltage lockout (typ) (V) 4 Driver configuration Inverting, Non-Inverting
Number of channels 1 Power switch GaNFET, IGBT, MOSFET Peak output current (A) 4 Input supply voltage (min) (V) 4.5 Input supply voltage (max) (V) 18 Features Hysteretic Logic Operating temperature range (°C) -40 to 125 Rise time (ns) 9 Fall time (ns) 7 Propagation delay time (µs) 0.013 Input threshold CMOS, TTL Channel input logic Inverting, Non-Inverting Input negative voltage (V) -5 Rating Automotive Undervoltage lockout (typ) (V) 4 Driver configuration Inverting, Non-Inverting
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Automotive Qualified Grade 1: –40°C
      to 125°C Ambient Operating Temperature
      Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • Low-Cost Gate-Driver Device Offering Superior
    Replacement of NPN and PNP Discrete Solutions
  • 4-A Peak-Source and Sink Symmetrical Drive
  • Ability to Handle Negative Voltages (–5 V) at
    Inputs
  • Fast Propagation Delays (13-ns typical)
  • Fast Rise and Fall Times (9-ns and 7-ns typical)
  • 4.5 to 18-V Single-Supply Range
  • Outputs Held Low During VDD UVLO (ensures
    glitch-free operation at power up and power down)
  • TTL and CMOS Compatible Input-Logic Threshold
    (independent of supply voltage)
  • Hysteretic-Logic Thresholds for High-Noise
    Immunity
  • Dual Input Design (choice of an inverting (IN– pin)
    or non-inverting (IN+ pin) driver configuration)
    • Unused Input Pin can be Used for Enable or
      Disable Function
  • Output Held Low when Input Pins are Floating
  • Input Pin Absolute Maximum Voltage Levels Not
    Restricted by VDD Pin Bias Supply Voltage
  • Operating Temperature Range of –40°C to 140°C
  • 5-Pin DBV (SOT-23) Package Option
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Automotive Qualified Grade 1: –40°C
      to 125°C Ambient Operating Temperature
      Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • Low-Cost Gate-Driver Device Offering Superior
    Replacement of NPN and PNP Discrete Solutions
  • 4-A Peak-Source and Sink Symmetrical Drive
  • Ability to Handle Negative Voltages (–5 V) at
    Inputs
  • Fast Propagation Delays (13-ns typical)
  • Fast Rise and Fall Times (9-ns and 7-ns typical)
  • 4.5 to 18-V Single-Supply Range
  • Outputs Held Low During VDD UVLO (ensures
    glitch-free operation at power up and power down)
  • TTL and CMOS Compatible Input-Logic Threshold
    (independent of supply voltage)
  • Hysteretic-Logic Thresholds for High-Noise
    Immunity
  • Dual Input Design (choice of an inverting (IN– pin)
    or non-inverting (IN+ pin) driver configuration)
    • Unused Input Pin can be Used for Enable or
      Disable Function
  • Output Held Low when Input Pins are Floating
  • Input Pin Absolute Maximum Voltage Levels Not
    Restricted by VDD Pin Bias Supply Voltage
  • Operating Temperature Range of –40°C to 140°C
  • 5-Pin DBV (SOT-23) Package Option

The UCC27517A-Q1 single-channel high-speed low-side gate-driver device effectively drives MOSFET and IGBT power switches. With a design that inherently minimizes shoot-through current, the UCC27517A-Q1 sources and sinks high peak-current pulses into capacitive loads offering rail-to-rail drive capability and extremely small propagation delay typically 13 ns.

The UCC27517A-Q1 device handles –5 V at input.

The UCC27517A-Q1 provides 4-A source and 4-A sink (symmetrical drive) peak-drive current capability at VDD = 12 V.

The UCC27517A-Q1 operates over a wide VDD range of 4.5 V to 18 V and wide temperature range of –40°C to 140°C. Internal Undervoltage Lockout (UVLO) circuitry on VDD pin holds the output low outside VDD operating range. The ability to operate at low voltage levels such as below 5 V, along with best-in-class switching characteristics, is especially suited for driving emerging wide band-gap power-switching devices such as GaN power-semiconductor devices.

The UCC27517A-Q1 single-channel high-speed low-side gate-driver device effectively drives MOSFET and IGBT power switches. With a design that inherently minimizes shoot-through current, the UCC27517A-Q1 sources and sinks high peak-current pulses into capacitive loads offering rail-to-rail drive capability and extremely small propagation delay typically 13 ns.

The UCC27517A-Q1 device handles –5 V at input.

The UCC27517A-Q1 provides 4-A source and 4-A sink (symmetrical drive) peak-drive current capability at VDD = 12 V.

The UCC27517A-Q1 operates over a wide VDD range of 4.5 V to 18 V and wide temperature range of –40°C to 140°C. Internal Undervoltage Lockout (UVLO) circuitry on VDD pin holds the output low outside VDD operating range. The ability to operate at low voltage levels such as below 5 V, along with best-in-class switching characteristics, is especially suited for driving emerging wide band-gap power-switching devices such as GaN power-semiconductor devices.
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Technical documentation

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* Data sheet UCC27517A-Q1 Single-Channel High-Speed Low-Side Gate Driver with Negative Input Voltage Capability (with 4-A Peak Source and Sink) datasheet (Rev. B) PDF | HTML Aug 28, 2015
Application note Riding the Wave of Non-Isolated Gate Drivers in LEVs PDF | HTML Nov 14, 2025
Application brief Why Low-Side Gate Drivers are Better Than Discrete Designs PDF | HTML Nov 13, 2025
Application note Selecting Gate Drivers for HVAC Systems (Rev. A) PDF | HTML Nov 7, 2025
Application note Review of Different Power Factor Correction (PFC) Topologies' Gate Driver Needs PDF | HTML Jan 22, 2024
Application note Using a Single-Output Gate-Driver for High-Side or Low-Side Drive (Rev. B) PDF | HTML Sep 8, 2023
Application note Benefits of a Compact, Powerful, and Robust Low-Side Gate Driver PDF | HTML Nov 10, 2021
Functional safety information UCC27517A-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML Jun 16, 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
Application brief How to overcome negative voltage transients on low-side gate drivers' inputs Jan 18, 2019
More literature Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) Oct 29, 2018
Application brief Enable Function with Unused Differential Input Jul 11, 2018
Application brief Low-Side Gate Drivers With UVLO Versus BJT Totem-Pole Mar 16, 2018

Design & development

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

Evaluation board

UCC57142EVM — UCC57142 evaluation module

The UCC57142EVM is designed to primarily evaluate the UCC57142 functionality. The performance of the driver can be evaluated for capacitive loads or power devices with TO-220 footprints. The UCC57142EVM evaluation board allows for connection to various test points, such as IN, EN/FLT, OCP, and (...)
User guide: PDF | HTML
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Simulation model

UCC27517 PSpice Transient Model (Rev. B)

SLUM286B.ZIP (51 KB) - PSpice model
Supported products & hardware
Simulation model

UCC27517 TINA-TI Transient Reference Design

SLUM317.TSC (67 KB) - TINA-TI reference design
Supported products & hardware
Simulation model

UCC27517 TINA-TI Transient Spice Model

SLUM318.ZIP (8 KB) - TINA-TI Spice model
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Simulation model

UCC27517 Unencrypted PSpice Transient Model

SLUM491.ZIP (2 KB) - PSpice model
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Calculation tool

SLURB28 — UCC27516 and UCC27517 Schematic Review Template

This can be used to help the design engineer effectively select components and perform the layout to optimize their system for the gate driver.
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Reference design

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This reference design introduces an innovative circuit topology to precharge large DC link capacitors for hybrid electric vehicles (HEV) and electric vehicles (EV). The reference design features a system which does not require a microcontroller and can be operated with a 5-V supply. The reference (...)

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Reference design

TIDA-080004 — Electronics and LED Driver Reference Design for Augmented Reality Head-Up Displays

This reference design provides an electronics subsystem designed to drive an automotive augmented reality (AR) head-up display (HUD). DLP® technology enables bright, crisp, highly saturated head-up displays that project critical driving information onto the windshield of the car, reducing (...)
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