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LM5104

ACTIVE

2-A, 100-V half bridge gate driver with 8-V UVLO and adaptive delay

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Data sheet

LM5104

ACTIVE
Data sheet Order now

Product details

Bootstrap supply voltage (max) (V) 100 Power switch MOSFET Input supply voltage (min) (V) 9 Input supply voltage (max) (V) 14 Peak output current (A) 2 Operating temperature range (°C) -40 to 125 Undervoltage lockout (typ) (V) 8 Rating Catalog Propagation delay time (µs) 0.035 Rise time (ns) 10 Fall time (ns) 10 Iq (mA) 0.01 Input threshold TTL Channel input logic TTL Switch node voltage (V) -1 Driver configuration Dual, Single
Bootstrap supply voltage (max) (V) 100 Power switch MOSFET Input supply voltage (min) (V) 9 Input supply voltage (max) (V) 14 Peak output current (A) 2 Operating temperature range (°C) -40 to 125 Undervoltage lockout (typ) (V) 8 Rating Catalog Propagation delay time (µs) 0.035 Rise time (ns) 10 Fall time (ns) 10 Iq (mA) 0.01 Input threshold TTL Channel input logic TTL Switch node voltage (V) -1 Driver configuration Dual, Single
SOIC (D) 8 29.4 mm² 4.9 x 6 WSON (DPR) 10 16 mm² 4 x 4
  • Drives Both a High-Side and Low-Side N-Channel MOSFET
  • Adaptive Rising and Falling Edges With Programmable
    Additional Delay
  • Single Input Control
  • Bootstrap Supply Voltage Range up to 118-V DC
  • Fast Turnoff Propagation Delay (25 ns Typical)
  • Drives 1000-pF Loads With 15-ns Rise and Fall Times
  • Supply Rail Undervoltage Lockout
  • SOIC and WSON-10 4-mm × 4-mm Package
  • Drives Both a High-Side and Low-Side N-Channel MOSFET
  • Adaptive Rising and Falling Edges With Programmable
    Additional Delay
  • Single Input Control
  • Bootstrap Supply Voltage Range up to 118-V DC
  • Fast Turnoff Propagation Delay (25 ns Typical)
  • Drives 1000-pF Loads With 15-ns Rise and Fall Times
  • Supply Rail Undervoltage Lockout
  • SOIC and WSON-10 4-mm × 4-mm Package

The LM5104 High-Voltage Gate Driver is designed to drive both the high-side and the low-side N-channel MOSFETs in a synchronous buck configuration. The floating high-side driver can work with supply voltages up to 100 V. The high-side and low-side gate drivers are controlled from a single input. Each change in state is controlled in an adaptive manner to prevent shoot-through issues. In addition to the adaptive transition timing, an additional delay time can be added, proportional to an external setting resistor. An integrated high-voltage diode is provided to charge high-side gate drive bootstrap capacitor. A robust level shifter operates at high speed while consuming low power and providing clean level transitions from the control logic to the high-side gate driver. Undervoltage lockout is provided on both the low-side and the high-side power rails. This device is available in the standard SOIC and the WSON packages.

The LM5104 High-Voltage Gate Driver is designed to drive both the high-side and the low-side N-channel MOSFETs in a synchronous buck configuration. The floating high-side driver can work with supply voltages up to 100 V. The high-side and low-side gate drivers are controlled from a single input. Each change in state is controlled in an adaptive manner to prevent shoot-through issues. In addition to the adaptive transition timing, an additional delay time can be added, proportional to an external setting resistor. An integrated high-voltage diode is provided to charge high-side gate drive bootstrap capacitor. A robust level shifter operates at high speed while consuming low power and providing clean level transitions from the control logic to the high-side gate driver. Undervoltage lockout is provided on both the low-side and the high-side power rails. This device is available in the standard SOIC and the WSON packages.
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Technical documentation

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Type Title Date
* Data sheet LM5104 High-Voltage Half-Bridge Gate Driver With Adaptive Delay datasheet (Rev. D) PDF | HTML 16 Dec 2014
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
More literature Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) 29 Oct 2018

Design & development

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LM5104 PSpice Transient Model (Rev. A)

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LM5104 TINA-TI Transient Reference Design

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LM5104 TINA-TI Transient Spice Model

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LM5104 Unencrypted PSpice Transient Model

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SNVR521 — LM51xx Schematic Review Template

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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SOIC (D) 8 Ultra Librarian
WSON (DPR) 10 Ultra Librarian
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