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Product details

Parameters

Bus voltage (Max) (V) 100 Power switch MOSFET Input VCC (Min) (V) 9 Input VCC (Max) (V) 14 Peak output current (A) 1.8 Rise time (ns) 15 Operating temperature range (C) -40 to 125 Rating Catalog Number of channels (#) 2 Fall time (ns) 15 Prop delay (ns) 25 Iq (uA) 10 Input threshold TTL Channel input logic TTL Negative voltage handling at HS pin (V) -1 Features open-in-new Find other Half-bridge drivers

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 WSON (DPR) 10 16 mm² 4 x 4 open-in-new Find other Half-bridge drivers

Features

  • Renewable Energy Grade
  • 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 118V DC
  • Fast Turn-Off Propagation Delay (25 ns Typical)
  • Drives 1000 pF Loads with 15 ns Rise and Fall
    Times
  • Supply Rail Under-Voltage Lockout

Typical Applications

  • Current Fed Push-Pull Power Converters
  • High Voltage Buck Regulators
  • Active Clamp Forward Power Converters
  • Half and Full Bridge Converters

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Description

The SM74104 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 is capable of working with supply voltages up to 100V. 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 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 the control logic to the high side gate driver. Under-voltage lockout is provided on both the low side and the high side power rails.

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

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Design tools & simulation

SIMULATION MODELS Download
SLUM457.ZIP (47 KB) - PSpice Model
SIMULATION MODELS Download
SNOM575.ZIP (2 KB) - PSpice Model

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
WSON (DPR) 10 View options

Ordering & quality

Support & training

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