Analog Devices Inc./Maxim Integrated MAX17597FBEVKIT#

Overview

MAX17597FBEVKIT# from Maxim Integrated is a fully assembled and tested evaluation kit for the MAX17597 peak-current-mode PWM controller IC, configured as an isolated 24V/833mA (20W) flyback DC-DC converter operating at 200kHz with 1500VRMS galvanic isolation via optocoupler and transformer.

For engineers reviewing the MAX17597FBEVKIT# datasheet, MAX17597FBEVKIT# pinout, MAX17597FBEVKIT# application, or MAX17597FBEVKIT# equivalent, this kit enables rapid validation of isolated power supply designs using the MAX17597 in TQFN-16EP package - especially for industrial, medical, and telecom systems requiring regulated 24V output under 18–36V input.

Technical Context

The MAX17597FBEVKIT# implements a fixed-frequency (200kHz), peak-current-mode controlled flyback topology with cycle-by-cycle current limiting, resistor-programmable EN/UVLO and OVI thresholds, and soft-start functionality. It uses the MAX17597ATE+ IC in 3×3mm TQFN-16EP package with exposed pad for thermal management.

Galvanic isolation is achieved via ACPL-217-56AE optocoupler and CU8758-AL custom transformer (33µH primary, 0.5416:1 turns ratio), supporting up to 1500VRMS input-to-output isolation. Output regulation is maintained across 0–833mA load and 18–36V input, with measured phase margin of 73.0° and crossover frequency of 5.74kHz.

Key Specifications

Availability

MAX17597FBEVKIT# is available at Aetrix Electronics and suitable for industrial power supply validation, medical isolated DC-DC design verification, and telecom board-level power qualification requiring stable component supply and proven reference layout.

Supply support for MAX17597FBEVKIT# includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management solutions for industrial, automotive, communications, and computing applications.

The MAX17597FBEVKIT# belongs to Maxim's high-efficiency isolated DC-DC controller evaluation platform family, designed specifically to accelerate development of compact, reliable flyback converters for space-constrained and safety-critical applications.

FAQ

What is the purpose of the MAX17597FBEVKIT#?

The MAX17597FBEVKIT# is a fully assembled evaluation kit that demonstrates the MAX17597 peak-current-mode PWM controller in an isolated 24V/20W flyback configuration. It enables engineers to validate performance, test loop stability, and verify layout practices before designing custom boards - all using the actual MAX17597ATE+ IC in its native 3×3mm TQFN-16EP package.

Does the MAX17597FBEVKIT# support adjustable output voltage?

No - the MAX17597FBEVKIT# is factory-configured for a fixed 24V isolated output. Output voltage is set by the TL431AQDBZRQ1 shunt regulator and ACPL-217-56AE optocoupler feedback network. While the underlying MAX17597 IC supports programmable outputs via external resistors, this specific kit's BOM and layout are optimized exclusively for 24V operation per its design documentation.

Can the MAX17597FBEVKIT# operate with input voltages outside 18V–36V?

No - the MAX17597FBEVKIT# is validated only across 18V to 36V input. Its UVLO threshold is resistor-programmed per the MAX17597 datasheet, and the onboard components (including MOSFET IRLR3110ZTRPBF, diodes, and capacitors) are rated and selected for safe, reliable operation strictly within this range. Operation outside this window may compromise regulation, safety, or reliability.

What isolation rating does the MAX17597FBEVKIT# achieve?

The MAX17597FBEVKIT# achieves 1500VRMS galvanic isolation between input and output, verified through construction using the CU8758-AL transformer and ACPL-217-56AE optocoupler. This rating complies with reinforced insulation requirements for IEC 60601-1 (medical) and IEC 62368-1 (industrial/AV), making it suitable for safety-critical isolated power applications.

Is frequency dithering enabled on the MAX17597FBEVKIT# by default?

No - frequency dithering is disabled by default on the MAX17597FBEVKIT#. The DITHER/SYNC pin is shorted to SGND via 0Ω resistor R23. To enable dithering, users must replace R23 with a capacitor of appropriate value (per MAX17595–MAX17597 datasheet guidelines), allowing spread-spectrum operation to reduce EMI peaks without altering the nominal 200kHz switching frequency.