Overview

The ISL78420EVAL1Z evaluation board is designed for a user to evaluate the ISL78420 100V 2A half-bridge driver with tri-level PWM input for driving the gates of two NMOS FETs in a half-bridge configuration. These NFET MOSFETs are included on the evaluation board to evaluate a half-bridge driven load such as a DC motor or a synchronous switching regulator.

The ISL78420 is offered in a 14 Ld HTSSOP package enhanced with a thermal EPAD. It operates from a supply voltage of 8V to 14V DC with the capability of driving a high-side NMOS FET in a 100V half-bridge configuration. A unique tri-level PWM input allows control of both the high and low-side gate driver with a single input. When the PWM pin is left in a floating high impedance state, both gate drivers are turned off, which is beneficial for multiphase DC/DC switching that requires phase shedding.

ISL78420EVAL1Z Automotive Half-Bridge Driver Eval Board
ISL78420EVAL1Z Automotive Half-Bridge Driver Eval Board
  • 2A source and sink NMOS gate drivers
  • Internal level shifter and bootstrap diode for gate driver on high-side FET
  • Up to 100V high-side gate drive reference
  • 8V to 14V bias supply operation
  • Single PWM input for high-side and low-side gate driver with tri-level for turning off both drivers
  • Single resistor adjustable dead time from 35ns to 220ns

Applications

  • Automotive applications
  • Multiphase boost (ISL78220/225)
  • Half-bridge DC/DC converter
  • Class-D amplifiers

Documentation

= Featured Documentation
Type Title Date
Manual - Development Tools
ISL78420EVAL1Z User Guide
PDF 674 KB
Datasheet
ISL78420 Datasheet
PDF 1.01 MB
2 items

Design & Development

Software Downloads
Type Title Date
PCB Design Files
ISL78420EVAL1Z Design Files
ZIP 668 KB
1 item

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