MAX17598

PRODUCTION

Low-IQ Wide-Input-Range Active-Clamp Current-Mode PWM Controllers

Peak Current Mode Controllers with Active Clamp Reset Enables Efficiency Increase by Reducing Switching Losses

Data Sheet (Rev. 2) Product Selection Table
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Overview

  • Active Clamp, Peak Current-Mode Forward PWM Controller
  • 20µA Startup Current in UVLO
  • 4.5V to 36V Input-Supply Operating Range (MAX17599)
  • Programmable Input Undervoltage Lockout
  • Programmable Input Overvoltage Protection
  • Programmable 100kHz to 1MHz Switching Frequency
  • Switching Frequency Synchronization
  • Programmable Frequency Dithering for Low EMI Spread-Spectrum Operation
  • Programmable Dead Time
  • Adjustable Soft-Start
  • Programmable Slope Compensation
  • Fast Cycle-by-Cycle Peak-Current-Limit
  • 70ns Internal Leading-Edge Current-Sense Blanking
  • Hiccup Mode Output Short-Circuit Protection
  • Soft-Stop for Well-Controlled Clamp Capacitor Discharge
  • Negative Clamp-Switch Current Limit
  • 3mm x 3mm, Lead-Free 16-Pin TQFN
  • -40°C to +125°C Operating Temperature Range
MAX17598
Low-IQ Wide-Input-Range Active-Clamp Current-Mode PWM Controllers
MAX17598, MAX17599: Startup Circuits
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Documentation

Data Sheet 1

User Guide 1

Application Note 1

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Evaluation Kits

MAX17598EVKIT

Evaluation Kit for the MAX17598

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Features and Benefits

  • 36V DC to 72V DC Input Range
  • Isolated Output Voltage: 3.3V DC at 8A
  • Galvanic Isolation Up to 3000VRMS
  • 350kHz Switching Frequency
  • Efficiency Up to 93.6%
  • Active-Clamp Forward Converter Topology
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17598 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains a peak-current-mode controller for an active-clamp forward regulator. The EV kit is configured for an isolated 3.3V DC output voltage that can supply up to 8A of current. The input voltage range is from 36V DC to 72V DC.
The EV kit demonstrates low quiescent current and efficiency up to 93.6%. High efficiency is achieved by using an active-clamp forward converter topology, with self-driven synchronous secondary MOSFETs on the output side. The EV kit is configured to operate at a 350kHz switching frequency. The surface-mount transformer has a bias winding to power the IC after startup. An optocoupler along with the transformer provide galvanic isolation between input and output, up to 3000VRMS.
Warning: The EV kit is designed to operate with high voltages. Dangerous voltages are present on this EV kit and on the equipment connected to it. Users who power up this EV kit or the power sources connected to it must be careful to follow safety procedures appropriately to work with high-voltage electrical equipment.
Under severe fault or failure conditions, this EV kit may dissipate large amounts of power, which could result in the mechanical ejection of a component or of component debris at high velocity. Operate this EV kit with care to avoid possible personal injury.

Applications

  • Industrial Power Supplies
  • Isolated Battery Chargers
  • Servers and Embedded Computing
  • Telecom and Datacom Power Supplies
MAX17598EVKIT
Evaluation Kit for the MAX17598

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