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LM5107

ACTIVE

1.4-A, 100-V half bridge gate driver with 8-V UVLO

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Data sheet

LM5107

ACTIVE
Data sheet Order now

Product details

Bootstrap supply voltage (max) (V) 100 Power switch MOSFET Input supply voltage (min) (V) 8 Input supply voltage (max) (V) 14 Peak output current (A) 1.4 Operating temperature range (°C) -40 to 125 Undervoltage lockout (typ) (V) 8 Rating Catalog Propagation delay time (µs) 0.025 Rise time (ns) 15 Fall time (ns) 15 Iq (mA) 0.01 Input threshold TTL Channel input logic TTL Switch node voltage (V) -1 Driver configuration Dual, Independent
Bootstrap supply voltage (max) (V) 100 Power switch MOSFET Input supply voltage (min) (V) 8 Input supply voltage (max) (V) 14 Peak output current (A) 1.4 Operating temperature range (°C) -40 to 125 Undervoltage lockout (typ) (V) 8 Rating Catalog Propagation delay time (µs) 0.025 Rise time (ns) 15 Fall time (ns) 15 Iq (mA) 0.01 Input threshold TTL Channel input logic TTL Switch node voltage (V) -1 Driver configuration Dual, Independent
SOIC (D) 8 29.4 mm² 4.9 x 6 WSON (NGT) 8 16 mm² 4 x 4
  • Drives Both a High Side and Low Side N-Channel MOSFET
  • High Peak Output Current (1.4-A Sink / 1.3-A Source)
  • Independent TTL Compatible Inputs
  • Integrated Bootstrap Diode
  • Bootstrap Supply Voltage to 118 V DC
  • Fast Propagation Times (27-ns Typical)
  • Drives 1000 pF Load With 15-ns Rise and Fall Times
  • Excellent Propagation Delay Matching (2-ns Typical)
  • Supply Rail Undervoltage Lockout
  • Low Power Consumption
  • Pin Compatible With ISL6700
  • Packages:
    • SOIC
    • WSON (4 mm × 4 mm)
  • Drives Both a High Side and Low Side N-Channel MOSFET
  • High Peak Output Current (1.4-A Sink / 1.3-A Source)
  • Independent TTL Compatible Inputs
  • Integrated Bootstrap Diode
  • Bootstrap Supply Voltage to 118 V DC
  • Fast Propagation Times (27-ns Typical)
  • Drives 1000 pF Load With 15-ns Rise and Fall Times
  • Excellent Propagation Delay Matching (2-ns Typical)
  • Supply Rail Undervoltage Lockout
  • Low Power Consumption
  • Pin Compatible With ISL6700
  • Packages:
    • SOIC
    • WSON (4 mm × 4 mm)

The LM5107 is a low cost high voltage gate driver, designed to drive both the high side and the low side N-Channel MOSFETs in a synchronous buck or a half bridge configuration. The floating high-side driver is capable of working with rail voltages up to 100-V. The outputs are independently controlled with TTL compatible input thresholds. An integrated on chip high voltage diode is provided to charge the high side gate drive bootstrap capacitor. A robust level shifter technology operates at high speed while consuming low power and providing clean level transitions from the control input logic to the high side gate driver. Undervoltage lockout is provided on both the low side and the high side power rails. The device is available in the SOIC and the thermally enhanced WSON packages.

The LM5107 is a low cost high voltage gate driver, designed to drive both the high side and the low side N-Channel MOSFETs in a synchronous buck or a half bridge configuration. The floating high-side driver is capable of working with rail voltages up to 100-V. The outputs are independently controlled with TTL compatible input thresholds. An integrated on chip high voltage diode is provided to charge the high side gate drive bootstrap capacitor. A robust level shifter technology operates at high speed while consuming low power and providing clean level transitions from the control input logic to the high side gate driver. Undervoltage lockout is provided on both the low side and the high side power rails. The device is available in the SOIC and the thermally enhanced WSON packages.
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Technical documentation

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Type Title Date
* Data sheet LM5107 100V / 1.4-A Peak Half Bridge Gate Driver datasheet (Rev. F) PDF | HTML 22 Sep 2016
Application note Using Half-Bridge Gate Driver to Achieve 100% Duty Cycle for High Side FET PDF | HTML 25 Mar 2024
Application note Challenges and Solutions for Half-Bridge Gate Drivers in Bidirectional DC-DC Converters PDF | HTML 24 Jan 2024
Application note Bootstrap Circuitry Selection for Half Bridge Configurations (Rev. A) PDF | HTML 08 Sep 2023
Application note Comparative Analysis of Two Different Methods for Gate-Drive Current Boosting (Rev. A) PDF | HTML 17 Feb 2022
Application note Voltage Fed Full Bridge DC-DC & DC-AC Converter High-Freq Inverter Using C2000 (Rev. D) 07 Apr 2021
Application note Implementing High-Side Switches Using Half-Bridge Gate Drivers for 48-V Battery. 12 May 2020
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 Small Price Competitive 100-V Driver for 48-V BLDC Motor Drives 22 Oct 2019
Application note Maximizing DC/DC converter designs with UCC27282 18 Jan 2019
Application note UCC27282 Improving motor drive system robustness 11 Jan 2019
More literature Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) 29 Oct 2018

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Supported products & hardware

Supported products & hardware

Products
Half-bridge drivers
  • LM25101 — 3-A, 2-A or 1-A half bridge gate driver with 8-V UVLO and TTL inputs
  • LM5100A — 3-A, 100-V half bridge gate driver with 8-V UVLO and CMOS inputs
  • LM5100B — 2-A, 100-V half bridge gate driver with 8-V UVLO and CMOS inputs
  • LM5100C — 1-A, 100-V half bridge gate driver with 8-V UVLO and CMOS Imputs
  • LM5101 — High voltage high side and low side gate driver
  • LM5101A — 3-A, 100-V half bridge gate driver with 8-V UVLO and TTL inputs
  • LM5101B — 2-A, 100-V half bridge gate driver with 8-V UVLO and TTL inputs
  • LM5101C — 1-A, 100-V half bridge gate driver with 8-V UVLO and TTL Imputs
  • LM5102 — 2-A, 100-V half bridge gate driver with 8-V UVLO and programmable delay
  • LM5104 — 2-A, 100-V half bridge gate driver with 8-V UVLO and adaptive delay
  • LM5106 — 1.2-A, 1.8-A 100-V half bridge gate driver with 8V-UVLO and programmable dead-time
  • LM5107 — 1.4-A, 100-V half bridge gate driver with 8-V UVLO
  • LM5108 — 2.6-A, 110-V half bridge gate driver with enable and interlock
  • LM5109A — 1-A, 100-V half bridge gate driver with 8-V UVLO
  • LM5109B — 1-A, 100-V half bridge gate driver with 8-V UVLO and high noise immunity
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Reference designs

TIDA-01227 — High Voltage Stepper Driver Reference Design

The TIDA-01227 reference design is a 15 V to 70 V stepper motor controller for bipolar applications. The design uses Texas Instrument’s DRV8711 Bipolar Stepper Motor Controller gate driver, CSD19538Q3A 100V, N-Channel NexFET Power MOSFET s, CSD17483F4 30V, N-Channel FemtoFET™ (...)
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WSON (NGT) 8 Ultra Librarian
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