Analog Devices Inc./Maxim Integrated MAX17691AEVKIT#

Overview

MAX17691AEVKIT# from Maxim Integrated is a fully assembled and tested evaluation kit designed to validate the MAX17691A no-opto isolated flyback converter IC in 5V/1.5A output applications. It operates across an 18V–36V input range, delivers ±5% output regulation without optocouplers, and switches at 150kHz using a 15µH external inductor and integrated 76V nMOSFET.

For engineers reviewing the MAX17691AEVKIT# datasheet, MAX17691AEVKIT# setup procedure, MAX17691AEVKIT# performance report, or MAX17691AEVKIT# component bill of materials, this page provides verified operating conditions, jumper configuration guidance (JU1–JU3), radiated/conducted EMI test data (CISPR-22 Class B compliant), and validated test equipment requirements for rapid prototyping and design verification.

Technical Context

The MAX17691AEVKIT# implements the MAX17691A IC in a fixed 5V isolated output configuration using primary-side sensing with no optocoupler. It uses an EP10 transformer (3:1 turns ratio) and supports external clock synchronization or frequency dithering via the SYNC/DITHER pin when JU1 is reconfigured.

Input enable/UVLO and overvoltage protection are resistor-programmable via jumpers JU2 and JU3, respectively. The board includes internal soft-start (5ms), temperature-compensated voltage regulation from –40°C to +125°C, and achieves 87% peak efficiency at 24V_IN/1.5A_OUT.

Key Specifications

Availability

MAX17691AEVKIT# is available at Aetrix Electronics and suitable for industrial power supply validation, isolated DC-DC reference design verification, and high-efficiency flyback converter qualification requiring stable component supply and pre-tested PCB layout.

Supply support for MAX17691AEVKIT# 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) designs precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications systems.

The MAX17691A product line targets isolated flyback power supplies where optocoupler elimination, compact size, and primary-side regulation are critical - enabling simplified safety-certified designs with reduced BOM count.

FAQ

What input voltage range does the MAX17691AEVKIT# support?

The MAX17691AEVKIT# supports a nominal 18V to 36V DC input range. It is configured to operate at 24V by default during quick-start testing, and output regulation remains within ±5% across the full input range while delivering up to 1.5A at 5V. Input undervoltage lockout (UVLO) and overvoltage protection (OVI) thresholds are resistor-programmable using jumpers JU2 and JU3 on the MAX17691AEVKIT# board.

Does the MAX17691AEVKIT# require an optocoupler for feedback?

No, the MAX17691AEVKIT# does not require an optocoupler. It evaluates the MAX17691A's proprietary primary-side sensing architecture, which samples reflected flyback voltage to regulate the isolated 5V output without secondary-side feedback components. This eliminates optocoupler-related aging, gain drift, and certification complexity - a core functional feature validated on the MAX17691AEVKIT#.

How is the switching frequency set on the MAX17691AEVKIT#?

The MAX17691AEVKIT# operates at a fixed 150kHz switching frequency by default, as confirmed in the EV kit performance report. The SYNC/DITHER pin (accessible via jumper JU1) allows external clock synchronization or frequency dithering when the shunt is removed and an external signal is applied - enabling EMI reduction or system-level timing alignment during MAX17691AEVKIT# evaluation.

What load current capability does the MAX17691AEVKIT# demonstrate?

The MAX17691AEVKIT# delivers up to 1.5A continuous output current at 5V, verified under thermal and regulation tests across the full 18V–36V input range and –40°C to +85°C ambient. Load transient response (0.75A → 1.5A step) and efficiency vs. load curves are documented in the MAX17691AEVKIT# performance report, confirming stable operation at maximum rated load.

Is the MAX17691AEVKIT# RoHS-compliant and fully assembled?

Yes, the MAX17691AEVKIT# is RoHS-compliant (denoted by # suffix) and shipped fully assembled and tested. All passive and active components - including the MAX17691AATC+ IC, EP10 transformer, 15µH inductor L1, and supporting capacitors/diodes/resistors - are populated and validated per the bill of materials. No soldering or component placement is required before initial power-up.