MAX17691A

PRODUCTION

4.2V–60V No-Opto Isolated Flyback Converter with Integrated FET

Reduce Solution Size and Component Count by Up to 30%

Data Sheet (Rev. 1) Product Selection Table
Part Models
2
1ku List Price
Starting From $1.99
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Part Details

  • Reduces External Components and Total Cost
    • Eliminates the Optocoupler and Secondary-Side Error Amplifier
    • Up to 20% Space Savings
    • 76V, Low RDSON Integrated nMOSFET
    • Internal Loop Compensation (MAX17691A)
    • Built-In Soft-Start
  • Reduces Power Dissipation
    • > 90% Efficiency
    • Delivers up to 7.5W Output Power
    • Frequency Fold-Back Enables Enhanced Light-Load Efficiency
    • 2.5µA Shutdown Current
  • Supports Key System-Level Design Requirements
    • Frequency Dithering Supports Low-EMI, Spread-Spectrum Operation
    • Switching Frequency Synchronization to External Clock
    • Compliant with CISPR22 ClassB EMI Requirements
  • Operates Reliably in Adverse Environments
    • Output Diode Forward Voltage Temperature Compensation
    • Hiccup Current-Limit Protection
    • Programmable EN/UVLO Threshold
    • Input Overvoltage (OVI) Protection (MAX17691A)
    • Overtemperature Protection
    • High Industrial -40°C to +125°C Ambient Operating Temperature Range/ -40°C to +150°C Junction Temperature Range
MAX17691A
4.2V–60V No-Opto Isolated Flyback Converter with Integrated FET
MAX17691A, MAX17691B: Typical Application Circuit
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Documentation

Data Sheet 1

Application Note 1

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Tools & Simulations

EE-Sim Power® Tools 1

The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.

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Evaluation Kits

MAX17691AEVKIT

Evaluation Kit for the MAX17691A in 5V Output-Voltage Application

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Features and Benefits

  • 18V to 36V Input Range
  • Isolated Output: 5V/1.5A DC
  • Compact Design with High Frequency (150kHz) Switching
  • 86% Peak Efficiency
  • Resistor Programmable Input Enable/UVLO Protection
  • Resistor Programmable Input Overvoltage Protection
  • Internal Loop Compensation Reduces External Components
  • 5mS Internal Soft-Start Time
  • Temperature Compensated Output Voltage Over -40°C to +125°C Operating Temperature
  • Provision to External Clock Synchronization and Frequency Dithering
  • VCC Overdrive
  • Minimum Number of External Components
  • Complies with CISPR22(EN55022) Class B Radiated Emissions
  • Proven PCB Layout
  • Fully Assembled and Tested
    • .

Product Details

The MAX17691A evaluation kit (EV kit) provides a proven design to evaluate the performance of MAX17691A IC. This fully assembled and tested circuit is implemented using the MAX17691A, the No-Opto Flyback converter with an integrated 76V nMOSFET, available in a 12-pin TDFN package with an exposed pad. The IC data sheet provides a complete description of the part and should be read in conjunction with this EV kit data sheet prior to operating the EV kit.

The MAX17691A EV kit output is configured for an isolated +5V and provides up to 1.5A of output current over a 18V to 36V input range. The device switches at a 150kHz switching frequency. The EV kit regulates the output voltage within ±5% over the line, load, and temperature by sensing the output voltage on the primary side. The converter does not need an optocoupler for the isolated output voltage sensing.

Applications

  • IGBT Gate Drive Supplies
  • Industrial and Telecom Applications
  • Isolated Power Supplies
  • PLC I/O Modules

MAX17691BEVKIT

Evaluation Kit for the MAX17691B 5V Output-Voltage Application

Buy Now View Details

Features and Benefits

  • 18V to 36V Input Range
  • Isolated Output: 5V/1.5A DC
  • Compact Design with High Frequency (150kHz) Switching
  • 87% Peak Efficiency
  • Resistor Programmable Input Enable/UVLO Protection
  • External Loop Compensation with Design Flexibility
  • 5ms Internal Soft-Start Time
  • Temperature Compensated Output Voltage Over -40°C to +125°C Operating Temperature
  • Provision to External Clock Synchronization and Frequency Dithering
  • VCC Overdrive to Improve Efficiency
  • Minimum Number of External Components
  • CISPR22(EN55022) Class B Compliant
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17691B evaluation kit (EV kit) provides a proven design to evaluate the performance of the MAX17691B IC. This fully assembled and tested circuit evaluates the MAX17691B, the No-Opto Flyback Converter with an integrated 76V nMOSFET, available in a 12-pin TDFN package with an exposed pad. The IC data sheet provides a complete description of the part and should be read in conjunction with this EV kit data sheet prior to operating the EV kit.

The MAX17691B EV kit output is configured for an isolated +5V and provides up to 1.5A of output current over an 18V to 36V input range. The device has a 150kHz switching frequency. The EV kit regulates the output voltage within ±5% over the line, load, and temperature by sensing the output voltage on the primary side. The converter does not need an opto-coupler for the isolated output-voltage sensing.

Applications

  • IGBT Gate Drive Supplies
  • Industrial and Telecom Applications
  • Isolated Power Supplies
  • PLC I/O Modules
MAX17691AEVKIT
Evaluation Kit for the MAX17691A in 5V Output-Voltage Application
MAX17691BEVKIT
Evaluation Kit for the MAX17691B 5V Output-Voltage Application

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