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LM5102

ACTIVE

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

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Data sheet

LM5102

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) 1.8 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, Independent
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) 1.8 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, Independent
WSON (DPR) 10 16 mm² (4 mm × 4 mm) VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm)
  • Drives Both a High-Side and Low-Side N-Channel MOSFET
  • Independently Programmable High and Low Side Rising Edge Delay
  • Bootstrap Supply Voltage Range up to 118 V dc
  • Fast Turn-Off Propagation Delay (25 ns Typical)
  • Drives 1000-pF Loads with 15-ns Rise and Fall Times
  • Supply Rail Undervoltage Lockout
  • Low Power Consumption
  • Timer Can Be Terminated Midway Through Sequence
  • Drives Both a High-Side and Low-Side N-Channel MOSFET
  • Independently Programmable High and Low Side Rising Edge Delay
  • Bootstrap Supply Voltage Range up to 118 V dc
  • Fast Turn-Off Propagation Delay (25 ns Typical)
  • Drives 1000-pF Loads with 15-ns Rise and Fall Times
  • Supply Rail Undervoltage Lockout
  • Low Power Consumption
  • Timer Can Be Terminated Midway Through Sequence

The LM5102 high-voltage gate driver is 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 supply voltages up to 100 V. The outputs are independently controlled. The rising edge of each output can be independently delayed with a programming resistor. An integrated high voltage diode is provided to charge the high side gate drive bootstrap capacitor. A robust level shifter operates at high speed while consuming low power and providing clean level transitions from 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 VSSOP 10 pin and the WSON 10 pin packages.

For all available packages, see the orderable addendum at the end of the data sheet.

The LM5102 high-voltage gate driver is 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 supply voltages up to 100 V. The outputs are independently controlled. The rising edge of each output can be independently delayed with a programming resistor. An integrated high voltage diode is provided to charge the high side gate drive bootstrap capacitor. A robust level shifter operates at high speed while consuming low power and providing clean level transitions from 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 VSSOP 10 pin and the WSON 10 pin packages.

For all available packages, see the orderable addendum at the end of the data sheet.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet LM5102 High-Voltage Half-Bridge Gate Driver With Programmable Delay datasheet (Rev. B) PDF | HTML Dec 15, 2014
Application note Using Half-Bridge Gate Driver to Achieve 100% Duty Cycle for High Side FET PDF | HTML Mar 25, 2024
Application note Challenges and Solutions for Half-Bridge Gate Drivers in Bidirectional DC-DC Converters PDF | HTML Jan 24, 2024
Application note Bootstrap Circuitry Selection for Half Bridge Configurations (Rev. A) PDF | HTML Sep 8, 2023
Application note Comparative Analysis of Two Different Methods for Gate-Drive Current Boosting (Rev. A) PDF | HTML Feb 17, 2022
Application note Voltage Fed Full Bridge DC-DC & DC-AC Converter High-Freq Inverter Using C2000 (Rev. D) Apr 7, 2021
Application note Implementing High-Side Switches Using Half-Bridge Gate Drivers for 48-V Battery. May 12, 2020
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 Small Price Competitive 100-V Driver for 48-V BLDC Motor Drives Oct 22, 2019
Application note Maximizing DC/DC converter designs with UCC27282 Jan 18, 2019
Application note UCC27282 Improving motor drive system robustness Jan 11, 2019
More literature Fundamentals of MOSFET and IGBT Gate Driver Circuits (Replaces SLUP169) (Rev. A) Oct 29, 2018

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WSON (DPR) 10 Ultra Librarian
VSSOP (DGS) 10 Ultra Librarian
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