MAX17597

PRODUCTION

Peak-Current-Mode Controllers for Flyback and Boost Regulators

Enable Compact, Cost-Effective, and Highly Flexible Isolated/Nonisolated Power Supplies

Data Sheet (Rev. 5) Product Selection Table
Part Models
2
1ku List Price
Starting From $1.16
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Part Details

  • Programmable Switching Frequency Allows Optimization of the Magnetic and Filter Components, Resulting in Compact, Cost-Effective, Efficient Isolated/Non-Isolated Power Supplies
    • 100kHz to 1MHz Programmable Switching Frequency with Optional Synchronization
    • Peak Current Mode Control Provides Excellent Transient Response
      • Offline (Universal Input AC) and Telecom (36V to 72V) Flyback Controller—MAX17595
      • DC-DC (4.5V to 36V) Flyback Controller—MAX17596
      • Nonsynchronous (4.5V to 36V) Boost PWM Controller—MAX17597
    • 3mm x 3mm TQFN Package
  • Programmable Frequency Dithering Enables Low-EMI Spread-Spectrum Operation
  • Integrated Protection Features Enhance System Reliability
    • Adjustable Current Limit with External Current-Sense Resistor
    • Fast Cycle-By-Cycle Peak Current Limiting
    • Hiccup-Mode Short-Circuit Protection
    • Overtemperature Protection
    • Programmable Soft-Start and Slope Compensation
    • Input Overvoltage Protection
MAX17597
Peak-Current-Mode Controllers for Flyback and Boost Regulators
MAX17595, MAX17596, MAX17597: Startup Circuits
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Technical Articles 1

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Hardware Ecosystem

Parts Product Life Cycle Description
External Power Switch Boost Controllers 1
MAX17499
PRODUCTION Current-Mode PWM Controllers with Programmable Switching Frequency
Flyback, Forward, and Isolated Controller 1
MAX17500
PRODUCTION Current-Mode PWM Controllers with Programmable Switching Frequency
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • MAX17597

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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LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

MAX17597EVKIT

Evaluation Kit for the MAX17597 Boost Configuration

Buy Now View Details

Features and Benefits

  • 8V to 14V Input Range
  • Output Voltage: 24V at 1A
  • 600kHz Switching Frequency
  • Efficiency Up to 95.6%
  • Low-Cost Boost Converter Design
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17597 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board to evaluate the MAX17597 peak-current-mode controller in a step-up (boost) configuration. The EV kit output is configured for 24V output voltage that can supply up to 1A of current. The input voltage range is from 8V to 14V.
High efficiency up to 95.6% is achieved using a boost converter operating at a switching frequency of 600kHz, providing an output power up to 24W.

Applications

  • Battery-Powered Applications
  • Industrial, Telecom, and Automotive Applications
  • Universal Input Offline AC-DC Power Supplies
  • Wide-Range DC-Input Flyback/Boost Battery Chargers

MAX17595EVKIT

Evaluation Kit for the MAX17595

Buy Now View Details

Features and Benefits

  • 85V AC to 265V AC or 120V DC to 375V DC Input Range
  • 15V DC at 1.5A Isolated Output Voltage
  • Galvanic Isolation Up to 3500VRMS
  • 120kHz Switching Frequency
  • Efficiency Up to 86%
  • Low-Cost Flyback Design
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17595 evaluation kit (EV kit) is a fully assembled and tested circuit board that contains MAX17595 peak-current-mode controller for a flyback regulator. The EV kit is configured for an isolated 15V DC output voltage that can supply up to 1.5A current. The line input voltage range is from 85V AC to 265V AC or 120V DC to 375V DC.
The EV kit demonstrates low quiescent current and efficiency up to 86%. This high efficiency is achieved by using a single-transistor (MOSFET) flyback converter topology that operates at 120kHz switching frequency. The surface-mount transformer has a tertiary winding to power the IC after startup. An optocoupler, along with the transformer, provides galvanic isolation up to 3500VRMS.
Warning: The EV kit is designed to operate with high voltages. Dangerous voltages are present on this EV kit and on 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

  • Battery-Powered Applications
  • Industrial, Telecom, and Automotive Applications
  • Universal Input Offline AC-DC Power Supplies
  • Wide-Range DC-Input Flyback/Boost Battery Chargers

MAX17596EVKIT

Evaluation Kit for the MAX17596

Buy Now View Details

Features and Benefits

  • 18V to 36V Input Range
  • Isolated Output: 24V DC at 20W
  • Cycle-by-Cycle Current Limit
  • Resistor Programmable UVLO/OVI Threshold
  • Low-Cost Flyback Design
  • Galvanic Isolation Up to 1500VRMS
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17596 evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates an isolated 20W fly-back DC-DC converter. The circuit uses the device’s peak current-mode controller in a 16-pin TQFN package with an exposed pad. The EV kit demonstrates the IC’s cycle-by-cycle current limit, soft-start, and EN/ UVLO features.

The EV kit circuit output is configured for an isolated +24V and provides up to 833mA of output current. The EV kit is configured to operate at a 200kHz switching frequency. An optocoupler, along with the transformer, provides galvanic isolation between the input and output, up to 1500VRMS.

Applications

  • Battery-Powered Applications
  • Industrial and Telecom Applications
  • Universal Input Offline AC-DC Power Supplies
  • Wide-Range DC-Input Flyback/Boost Battery Chargers

MAX17597FBEVKIT

Evaluation Kit for the MAX17597 Flyback Configuration

Buy Now View Details

Features and Benefits

  • 18V to 36V Input Range
  • Isolated Output: 24V DC at 20W
  • Cycle-by-Cycle Current Limit
  • Resistor Programmable UVLO/OVI Threshold
  • Low-Cost Flyback Design
  • Galvanic Isolation Up to 1500VRMS
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17597 evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates an isolated 20W flyback DC-DC converter. The circuit uses the device’s peak-current-mode controller in a 16-pin TQFN package with an exposed pad. The EV kit demonstrates the IC’s cycle-by-cycle current-limit, soft-start, and EN/UVLO features.

The EV kit circuit output is configured for an isolated 24V and provides up to 833mA of output current. The EV kit is configured to operate at a 200kHz switching frequency. An optocoupler, along with the transformer, provides galvanic isolation between input and output, up to 1500VRMS.

Applications

  • Battery-Powered Applications
  • Industrial and Telecom Applications
  • Universal Input Offline AC-DC Power Supplies
  • Wide-Range DC-Input Flyback/Boost Battery Chargers
MAX17597EVKIT
Evaluation Kit for the MAX17597 Boost Configuration
MAX17595EVKIT
Evaluation Kit for the MAX17595
MAX17596EVKIT
Evaluation Kit for the MAX17596
MAX17597FBEVKIT
Evaluation Kit for the MAX17597 Flyback Configuration

Reference Designs

maxrefdes1256 figure 1
maxrefdes1256 figure 1
MAXREFDES1256 Circuits from the lab

49W DC-DC Flyback Converter Using MAX17597

View Detailed Reference Design

Features and Benefits

  • Input voltage range of 9V to 36V
  • Synchronous rectification on the secondary side
  • Isolated output of 7V at 49W
  • Cycle-by-cycle current limit
  • Resistor programmable UVLO/OVI threshold
  • Galvanic isolation up to 1425V DC
  • Proven PCB layout
  • Fully assembled and tested
MAXREFDES1256
49W DC-DC Flyback Converter Using MAX17597
maxrefdes1256 figure 1

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