Product details


Number of channels (#) 1 Power switch MOSFET, GaNFET Peak output current (A) 7 Input VCC (Min) (V) 4.75 Input VCC (Max) (V) 5.25 Features 1.25-ns Pulse Width Operating temperature range (C) -40 to 125 Rise time (ns) 0.65 Fall time (ns) 0.85 Prop delay (ns) 2.9 Input threshold CMOS, TTL Channel input logic TTL Input negative voltage (V) 0 Rating Automotive Undervoltage lockout (Typ) 4.19 open-in-new Find other Low-side drivers

Package | Pins | Size

WSON (DEE) 6 4 mm² 2 x 2 open-in-new Find other Low-side drivers


  • AEC-Q100 grade 1 qualified
  • 1.25-ns typical minimum input pulse width
  • 2.6-ns typical rising propagation delay
  • 2.9-ns typical falling propagation delay
  • 300-ps typical pulse distortion
  • Independent 7-A pull-up and 5-A pull-down current
  • 650-ps typical rise time (220-pF load)
  • 850-ps typical fall time (220-pF load)
  • 2-mm x 2-mm QFN package
  • Inverting and non-inverting inputs
  • UVLO and over-temperature protection
  • Single 5-V supply voltage

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The LMG1025-Q1 is a single channel low-side enhancement-mode GaN FET and logic-level MOSFET driver for high switching frequency automotive applications. Narrow pulse width capability, fast switching specification, and small pulse distortion combine to significantly enhance LiDAR, ToF, and Power Converter performance. 1.25-ns output pulse width enables more powerful, eye-safe diode pulses. This, combined with 300-ns distortion, leads to longer-range, precise LiDAR/ToF systems. 2.9-ns propagation delay significantly improves the control loop response time and thus overall performance of the power converters. Split output allows the drive strength and timing to be independently adjusted through external resistors between OUTH, OUTL, and the FET gate.

The driver features undervoltage lockout (UVLO) and over-temperature protection (OTP) to ensure the device is not damaged in overload or fault conditions. LMG1025-Q1 is available in a compact, leadless, AEC-Q100 automotive qualified package to meet the size and gate loop inductance requirements of high switching frequency automotive applications.

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Technical documentation

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Type Title Date
* Datasheet LMG1025-Q1 Automotive Low Side GaN and MOSFET Driver For High Frequency and Narrow Pulse Applications datasheet (Rev. B) Jan. 16, 2020
More literature LMG1025-Q1EVM EU Declaration of Conformity (DoC) (Rev. A) Sep. 16, 2020
User guide LMG1025-Q1 EVM User's Guide (Rev. B) May 08, 2020
Application note External Gate Resistor Selection Guide (Rev. A) Feb. 28, 2020
Application note Understanding Peak IOH and IOL Currents (Rev. A) Feb. 28, 2020
Technical article How to achieve higher system robustness in DC drives, part 3: minimum input pulse Sep. 19, 2018
Technical article How to achieve higher system robustness in DC drives, part 2: interlock and deadtime May 30, 2018
Technical article Boosting efficiency for your solar inverter designs May 24, 2018
Technical article How to achieve higher system robustness in DC drives, part 1: negative voltage Apr. 17, 2018

Design & development

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Hardware development

document-generic User guide
The LMG1025-Q1EVM is a small, easy-to-use power stage with integrated resistive load (laser not included). It takes a short-pulse input that can either be buffered (and shortened further), or passed directly to the power stage.
  • Demonstrates driver capability of 1-2 ns pulses > 50 A
  • Extremely short propagation delay: 3 ns typical, 4.5 ns max
  • 550 ps typical rise/fall time
  • Schmitt-trigger type CMOS inputs for robustness
  • Advanced layout with < 500 pH of inductace

Design tools & simulation

SNOM618C.ZIP (1575 KB) - PSpice Model
SNOM620A.ZIP (43 KB) - TINA-TI Spice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

Nanosecond Laser Driver Reference Design for LiDAR
TIDA-01573 — This light distancing and ranging (LiDAR) reference design showcases the LMG1020 and LMG1025-Q1 low side gate drivers for narrow pulse applications. These devices are capable of driving a FET to produce <1.5-ns laser optical pulses in excess of 100W.
document-generic Schematic document-generic User guide

CAD/CAE symbols

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WSON (DEE) 6 View options

Ordering & quality

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