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LM5112

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3-A/7-A single channel gate driver with 4-V UVLO and input ground for split-supply operation

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Data sheet

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UCC27614 ACTIVE 30V VDD, 10A/10A single-channel low-side driver with 4V UVLO and low propagation delay More recent driver with wide VDD and smaller package options

LM5112

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Power switch MOSFET Peak output current (A) 7 Input supply voltage (min) (V) 3.5 Input supply voltage (max) (V) 14 Features Negative Output Voltage Capability Operating temperature range (°C) -40 to 125 Rise time (ns) 14 Fall time (ns) 12 Propagation delay time (µs) 0.025 Input threshold TTL Channel input logic Inverting, Non-Inverting Input negative voltage (V) 0 Rating Catalog Undervoltage lockout (typ) (V) 3 Driver configuration Single
Number of channels 1 Power switch MOSFET Peak output current (A) 7 Input supply voltage (min) (V) 3.5 Input supply voltage (max) (V) 14 Features Negative Output Voltage Capability Operating temperature range (°C) -40 to 125 Rise time (ns) 14 Fall time (ns) 12 Propagation delay time (µs) 0.025 Input threshold TTL Channel input logic Inverting, Non-Inverting Input negative voltage (V) 0 Rating Catalog Undervoltage lockout (typ) (V) 3 Driver configuration Single
WSON (NGG) 6 9 mm² (3 mm × 3 mm) HVSSOP (DGN) 8 14.7 mm² (3 mm × 4.9 mm)
  • LM5112-Q1 is Qualified for Automotive Applications
  • AEC-Q100 Grade 1 Qualified
  • Manufactured on an Automotive Grade Flow
  • Compound CMOS and Bipolar Outputs Reduce Output Current Variation
  • 7-A Sink and 3-A Source Current
  • Fast Propagation Times: 25 ns (Typical)
  • Fast Rise and Fall Times: 14 ns or 12 ns
    Rise or Fall With 2-nF Load
  • Inverting and Non-Inverting Inputs Provide Either Configuration With a Single Device
  • Supply Rail Undervoltage Lockout Protection
  • Dedicated Input Ground (IN_REF) for
    Split Supply or Single Supply Operation
  • Power Enhanced 6-Pin WSON Package
    (3 mm × 3 mm) or Thermally Enhanced
    MSOP-PowerPAD Package
  • Output Swings From VCC to VEE Which Are Negative Relative to Input Ground
  • LM5112-Q1 is Qualified for Automotive Applications
  • AEC-Q100 Grade 1 Qualified
  • Manufactured on an Automotive Grade Flow
  • Compound CMOS and Bipolar Outputs Reduce Output Current Variation
  • 7-A Sink and 3-A Source Current
  • Fast Propagation Times: 25 ns (Typical)
  • Fast Rise and Fall Times: 14 ns or 12 ns
    Rise or Fall With 2-nF Load
  • Inverting and Non-Inverting Inputs Provide Either Configuration With a Single Device
  • Supply Rail Undervoltage Lockout Protection
  • Dedicated Input Ground (IN_REF) for
    Split Supply or Single Supply Operation
  • Power Enhanced 6-Pin WSON Package
    (3 mm × 3 mm) or Thermally Enhanced
    MSOP-PowerPAD Package
  • Output Swings From VCC to VEE Which Are Negative Relative to Input Ground

The LM5112 device MOSFET gate driver provides high peak gate drive current in the tiny 6-pin WSON package (SOT-23 equivalent footprint) or an 8-pin exposed-pad MSOP package with improved power dissipation required for high frequency operation. The compound output driver stage includes MOS and bipolar transistors operating in parallel that together sink more than 7 A peak from capacitive loads. Combining the unique characteristics of MOS and bipolar devices reduces drive current variation with voltage and temperature. Undervoltage lockout protection is provided to prevent damage to the MOSFET due to insufficient gate turnon voltage. The LM5112 device provides both inverting and non-inverting inputs to satisfy requirements for inverting and non-inverting gate drive with a single device type.

The LM5112 device MOSFET gate driver provides high peak gate drive current in the tiny 6-pin WSON package (SOT-23 equivalent footprint) or an 8-pin exposed-pad MSOP package with improved power dissipation required for high frequency operation. The compound output driver stage includes MOS and bipolar transistors operating in parallel that together sink more than 7 A peak from capacitive loads. Combining the unique characteristics of MOS and bipolar devices reduces drive current variation with voltage and temperature. Undervoltage lockout protection is provided to prevent damage to the MOSFET due to insufficient gate turnon voltage. The LM5112 device provides both inverting and non-inverting inputs to satisfy requirements for inverting and non-inverting gate drive with a single device type.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet LM5112, LM5112-Q1 Tiny 7-A MOSFET Gate Driver datasheet (Rev. C) PDF | HTML Oct 22, 2015
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
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
Selection guide Power Management Guide 2018 (Rev. R) Jun 25, 2018
Application brief Low-Side Gate Drivers With UVLO Versus BJT Totem-Pole Mar 16, 2018
Application note An Alternative Approach to Higher-Power Boost Converters Nov 30, 2009

Design & development

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

Evaluation board

UCC27423-4-5-Q1EVM — UCC2742xQ1 Dual 4-A High-Speed Low-Side MOSFET Drivers With Enable Evaluation Module (EVM)

The UCC2742xQ1 EVM is a high-speed dual MOSFET evaluation module that provides a test platform for a quick and easy startup of the UCC2742xQ1 driver. Powered by a single 4V to 15V external supply, and featuring a comprehensive set of test points and jumpers. All of the devices have separate input (...)
User guide: PDF
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Simulation model

LM5112 PSpice Transient Model

SNVM300.ZIP (73 KB) - PSpice model
Supported products & hardware
Simulation model

LM5112 TINA-TI Transient Reference Design

SNVM391.TSC (579 KB) - TINA-TI reference design
Supported products & hardware
Simulation model

LM5112 TINA-TI Transient Spice Model

SNVM390.ZIP (8 KB) - TINA-TI Spice model
Supported products & hardware
Simulation model

LM5112 Unencrypted PSpice Transient Model

SNVMAD6.ZIP (1 KB) - PSpice model
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
WSON (NGG) 6 Ultra Librarian
HVSSOP (DGN) 8 Ultra Librarian
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