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UCC27531-Q1

ACTIVE

Automotive 2.5-A/5-A single-channel gate driver with 8-V UVLO, 35-V VDD, and split outputs

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Data sheet

A newer version of this product is available

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Same functionality with different pin-out to the compared device.
UCC57108-Q1 ACTIVE Automotive single-channel 30V VDD, 3A/3A low-side driver with DESAT protection and 8V UVLO More recent driver which shares split-output feature, but adds DESAT protection

UCC27531-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Power switch IGBT, MOSFET, SiCFET Peak output current (A) 5 Input supply voltage (min) (V) 10 Input supply voltage (max) (V) 32 Features Split Output Operating temperature range (°C) -40 to 125 Rise time (ns) 15 Fall time (ns) 7 Propagation delay time (µs) 0.017 Input threshold CMOS, TTL Channel input logic Non-Inverting, Single Input negative voltage (V) -5 Rating Automotive Undervoltage lockout (typ) (V) 8 Driver configuration Non-Inverting, Single
Number of channels 1 Power switch IGBT, MOSFET, SiCFET Peak output current (A) 5 Input supply voltage (min) (V) 10 Input supply voltage (max) (V) 32 Features Split Output Operating temperature range (°C) -40 to 125 Rise time (ns) 15 Fall time (ns) 7 Propagation delay time (µs) 0.017 Input threshold CMOS, TTL Channel input logic Non-Inverting, Single Input negative voltage (V) -5 Rating Automotive Undervoltage lockout (typ) (V) 8 Driver configuration Non-Inverting, Single
SOT-23 (DBV) 6 8.12 mm² (2.9 mm × 2.8 mm)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade 1
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Low Cost Gate Driver (Offering Optimal Solution
    for Driving Fet And Igbts)
  • Superior Replacement to Discrete Transistor Pair
    Drive (Providing Easy Interface With Controller)
  • TTL and CMOS Compatible Input Logic
    Threshold, (Independent of Supply Voltage)
  • Split Output Options Allow for Tuning of Turn-On
    and Turn-Off Currents
  • Enable with Fixed TTL Compatible Threshold
  • High 2.5-A Source and 5-A Sink Peak Drive
    Currents at 18-V VDD
  • Wide VDD Range From 10 V up to 35 V
  • Input and Enable Pins Capable of Withstanding up
    to –5-V DC Below Ground
  • Output Held Low When Inputs are Floating or
    During VDD UVLO
  • Fast Propagation Delays (17-ns Typical)
  • Fast Rise and Fall Times
    (15-ns and 7-ns Typical With 1800-pF Load)
  • Undervoltage Lockout (UVLO)
  • Used as a High-Side or Low-Side Driver (if
    Designed With Proper Bias and Signal Isolation)
  • Low-Cost, Space-Saving 6-Pin DBV (SOT-23)
    Package Options
  • Operating Temperature Range of –40°C to 140°C
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade 1
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Low Cost Gate Driver (Offering Optimal Solution
    for Driving Fet And Igbts)
  • Superior Replacement to Discrete Transistor Pair
    Drive (Providing Easy Interface With Controller)
  • TTL and CMOS Compatible Input Logic
    Threshold, (Independent of Supply Voltage)
  • Split Output Options Allow for Tuning of Turn-On
    and Turn-Off Currents
  • Enable with Fixed TTL Compatible Threshold
  • High 2.5-A Source and 5-A Sink Peak Drive
    Currents at 18-V VDD
  • Wide VDD Range From 10 V up to 35 V
  • Input and Enable Pins Capable of Withstanding up
    to –5-V DC Below Ground
  • Output Held Low When Inputs are Floating or
    During VDD UVLO
  • Fast Propagation Delays (17-ns Typical)
  • Fast Rise and Fall Times
    (15-ns and 7-ns Typical With 1800-pF Load)
  • Undervoltage Lockout (UVLO)
  • Used as a High-Side or Low-Side Driver (if
    Designed With Proper Bias and Signal Isolation)
  • Low-Cost, Space-Saving 6-Pin DBV (SOT-23)
    Package Options
  • Operating Temperature Range of –40°C to 140°C

The UCC27531-Q1 is a single-channel, high-speed, gate driver capable of effectively driving MOSFET and IGBT power switches by using up to 2.5-A source and 5-A sink (asymmetrical drive) peak current. Strong sink capability in asymmetrical drive boosts immunity against parasitic Miller turn-on effect. The UCC27531-Q1 device can also feature a split-output configuration where the gate-drive current is sourced through the OUTH pin and sunk through the OUTL pin. This pin arrangement allows the user to apply independent turn-on and turn-off resistors to the OUTH and OUTL pins respectively and easily control the switching slew rates.

The driver has rail-to-rail drive capability and an extremely small propagation delay of typically 17 ns.

The input threshold of UCC27531-Q1 is based on TTL and CMOS compatible low-voltage logic, which is fixed and independent of VDD supply voltage. The 1-V typical hysteresis offers excellent noise immunity.

The driver has the EN pin with fixed TTL compatible threshold. The EN pin is internally pulled up; pulling the EN pin low disables driver, while leaving it open provides normal operation. The EN pin can be used as an additional input with the same performance as the IN pin.

Leaving the input pin of driver open holds the output low. The logic behavior of the driver is shown in the application diagram, timing diagram and input and output logic truth table.

Internal circuitry on the VDD pin provides an UVLO function that holds output low until VDD supply voltage is within operating range.

The UCC27531-Q1 driver is offered in a 6-pin standard SOT-23 (DBV) package. The device operates over wide temperature range of –40°C to 140°C.

The UCC27531-Q1 is a single-channel, high-speed, gate driver capable of effectively driving MOSFET and IGBT power switches by using up to 2.5-A source and 5-A sink (asymmetrical drive) peak current. Strong sink capability in asymmetrical drive boosts immunity against parasitic Miller turn-on effect. The UCC27531-Q1 device can also feature a split-output configuration where the gate-drive current is sourced through the OUTH pin and sunk through the OUTL pin. This pin arrangement allows the user to apply independent turn-on and turn-off resistors to the OUTH and OUTL pins respectively and easily control the switching slew rates.

The driver has rail-to-rail drive capability and an extremely small propagation delay of typically 17 ns.

The input threshold of UCC27531-Q1 is based on TTL and CMOS compatible low-voltage logic, which is fixed and independent of VDD supply voltage. The 1-V typical hysteresis offers excellent noise immunity.

The driver has the EN pin with fixed TTL compatible threshold. The EN pin is internally pulled up; pulling the EN pin low disables driver, while leaving it open provides normal operation. The EN pin can be used as an additional input with the same performance as the IN pin.

Leaving the input pin of driver open holds the output low. The logic behavior of the driver is shown in the application diagram, timing diagram and input and output logic truth table.

Internal circuitry on the VDD pin provides an UVLO function that holds output low until VDD supply voltage is within operating range.

The UCC27531-Q1 driver is offered in a 6-pin standard SOT-23 (DBV) package. The device operates over wide temperature range of –40°C to 140°C.
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UCC27532-Q1 ACTIVE Automotive 2.5-A/5-A single-channel gate driver with 8-V UVLO, 35-V VDD, and CMOS inputs This device is pin-to-pin with CMOS input structure

Technical documentation

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Top documentation Type Title Format options Date
* Data sheet UCC27531-Q1 2.5-A and 5-A, 35-VMAX VDD FET and IGBT Single-Gate Driver datasheet (Rev. B) PDF | HTML Oct 8, 2015
Functional safety information UCC27531-Q1 Functional Safety FIT Rate, FMD, and Pin FMA (Rev. A) PDF | HTML Jun 9, 2025
Application note Review of Different Power Factor Correction (PFC) Topologies' Gate Driver Needs PDF | HTML Jan 22, 2024
Application note How to Choose a Gate Driver for DC Motor Drives PDF | HTML Oct 5, 2023
Application note Using a Single-Output Gate-Driver for High-Side or Low-Side Drive (Rev. B) PDF | HTML Sep 8, 2023
Application brief Designing a Robust Traction Inverter Redundant Power Supply From 800 V Battery (Rev. C) PDF | HTML Feb 16, 2023
Application note Benefits of a Compact, Powerful, and Robust Low-Side Gate Driver PDF | HTML Nov 10, 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 Implementing a Bipolar Gate Drive for Low-Side IGBTs and SiC FETs in Motor Drive Oct 10, 2019
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 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

UCC27531EVM-184 — UCC27531 Evaluation Module

The UCC27531EVM-184 is a fully isolated Gate Driver Daughter Card that provides a test platform for a quick and easy evaluation of the UCC27531DBV driver. Powered by a single +12V external supply, and featuring a comprehensive set of test points and jumpers, this EVM can be used for the evaluation (...)
User guide: PDF
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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

UCC27531 TINA-TI Transient Reference Design (Rev. A)

SLUM396A.TSC (766 KB) - TINA-TI reference design
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Simulation model

UCC27531 TINA-TI Transient Spice Model (Rev. A)

SLUM397A.ZIP (9 KB) - TINA-TI Spice model
Supported products & hardware
Simulation model

UCC27531 Unencrypted PSPICE TRANSIENT MODEL (Rev. A)

SLUM481A.ZIP (40 KB) - PSpice model
Supported products & hardware
Calculation tool

SLURB21 — UCC2753X Schematic Review Template

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
SOT-23 (DBV) 6 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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