Overview

The ISL8104EVAL1Z evaluation board highlights the operations of the ISL8104 controller in a DC/DC application. The ISL8104 is a simple single-phase pulse width modulator (PWM) controller for a synchronous buck converter with integrated MOSFET driver that operates from +8V to +14.4V bias supply voltage. The ISL8104 employs voltage-mode control with dual-edge modulation to achieve fast transient response. The controller features the ability to safely start-up into pre-biased output loads and provides protection against overcurrent fault events. Overcurrent protection is implemented using top-side MOSFET rDS(ON) sensing, eliminating the need for a current sensing resistor.

ISL8104EVAL1Z PWM Controller Eval Board
ISL8104EVAL1Z PWM Controller Eval Board
  • +8V ±5% to +14V ±10% bias voltage range
    • 1.5V to 15.4V input voltage range
  • 0.597V internal reference voltage
    • ±1.0% over the commercial temperature range
    • ±1.5% over the industrial temperature range
  • Voltage-mode PWM control with dual-edge modulation
  • 14V high-speed N-channel MOSFET gate drivers
    • 2.0A source/3A sink at 14V bottom-side gate drive
    • 1.25A source/2A sink at 14V top-side gate drive
  • Fast transient response
    • 15MHz (typ.) gain-bandwidth error amplifier with 6V/µs slew rate
    • Full 0% to 100% duty cycle support
  • Programmable operating frequency from 50kHz to 1.5MHz
  • Lossless programmable overcurrent protection
    • Top-side MOSFET's rDS(ON) sensing
    • ~120ns blanking time
  • Sourcing and sinking current capability
  • Support for start-up into pre-biased loads

Applications

  • Test and measurement instruments
  • Distributed DC/DC power architecture
  • Industrial applications
  • Telecom/Datacom applications

Documentation

= Featured Documentation
Type Title Date
Manual - Development Tools
ISL8104EVAL1Z User Guide
PDF 1.29 MB
Datasheet
ISL8104 Datasheet
PDF 775 KB
2 items

Design & Development

Software Downloads
Type Title Date
PCB Design Files
ISL8104EVAL1Z Design Files
ZIP 209 KB
1 item

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