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SM74101

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

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 x 3
  • Renewable Energy Grade
  • Compound CMOS and Bipolar Outputs Reduce
    Output Current Variation
  • 7A sink/3A Source Current
  • Fast Propagation Times (25 ns Typical)
  • Fast Rise and Fall Times (14 ns/12 ns Rise/Fall
    with 2 nF Load)
  • Inverting and Non-Inverting Inputs Provide Either
    Configuration with a Single Device
  • Supply Rail Under-Voltage Lockout Protection
  • Dedicated Input Ground (IN_REF) for Split Supply
    or Single Supply Operation
  • Power Enhanced 6-Pin WSON Package (3.0mm ×
    3.0mm)
  • Output Swings from VCC to VEE which can be
    Negative Relative to Input Ground
  • Renewable Energy Grade
  • Compound CMOS and Bipolar Outputs Reduce
    Output Current Variation
  • 7A sink/3A Source Current
  • Fast Propagation Times (25 ns Typical)
  • Fast Rise and Fall Times (14 ns/12 ns Rise/Fall
    with 2 nF Load)
  • Inverting and Non-Inverting Inputs Provide Either
    Configuration with a Single Device
  • Supply Rail Under-Voltage Lockout Protection
  • Dedicated Input Ground (IN_REF) for Split Supply
    or Single Supply Operation
  • Power Enhanced 6-Pin WSON Package (3.0mm ×
    3.0mm)
  • Output Swings from VCC to VEE which can be
    Negative Relative to Input Ground

The SM74101 MOSFET gate driver provides high peak gate drive current in the tiny WSON-6 package (SOT23 equivalent footprint), 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 7A peak from capacitive loads. Combining the unique characteristics of MOS and bipolar devices reduces drive current variation with voltage and temperature. Under-voltage lockout protection is provided to prevent damage to the MOSFET due to insufficient gate turn-on voltage. The SM74101 provides both inverting and non-inverting inputs to satisfy requirements for inverting and non-inverting gate drive with a single device type.

The SM74101 MOSFET gate driver provides high peak gate drive current in the tiny WSON-6 package (SOT23 equivalent footprint), 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 7A peak from capacitive loads. Combining the unique characteristics of MOS and bipolar devices reduces drive current variation with voltage and temperature. Under-voltage lockout protection is provided to prevent damage to the MOSFET due to insufficient gate turn-on voltage. The SM74101 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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Type Title Date
* Data sheet SM74101 Tiny 7A MOSFET Gate Driver datasheet (Rev. B) PDF | HTML 25 Mar 2015
Application note Review of Different Power Factor Correction (PFC) Topologies' Gate Driver Needs PDF | HTML 22 Jan 2024
Application note Using a Single-Output Gate-Driver for High-Side or Low-Side Drive (Rev. B) PDF | HTML 08 Sep 2023
Application note Benefits of a Compact, Powerful, and Robust Low-Side Gate Driver PDF | HTML 10 Nov 2021
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
Application brief How to overcome negative voltage transients on low-side gate drivers' inputs 18 Jan 2019
More literature Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) 29 Oct 2018
Application brief Low-Side Gate Drivers With UVLO Versus BJT Totem-Pole 16 Mar 2018

Design & development

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Simulation model

SM74101 PSpice Transient Model

SLUM456.ZIP (71 KB) - PSpice Model
Simulation model

SM74101 Unencrypted PSpice Transient Model

SNOM574.ZIP (1 KB) - PSpice Model
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

PMP9461 — Gate Drive and Bias Power Solution for Solar MicroInverters DC/DC and DC/AC Reference Design

PMP9461 is a reference design with complete power and gate drive requirements for grid tie solar microinverters.  The major goal of the reference design is to acheive significant integration and perfomance enhancement in gate drive as well as the bias supply segment (...)
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Schematic: PDF
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WSON (NGG) 6 Ultra Librarian

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