Analog Devices Inc./Maxim Integrated MAX15159EVKIT#

Overview

MAX15159EVKIT# from Analog Devices is a fully assembled and tested evaluation kit designed to characterize the MAX15159 high-voltage multiphase boost/flyback controller in flyback configuration, supporting input voltage range of 40V–60V, default 54V output, and operation across –40°C to +85°C ambient temperature - used for PoE-powered system validation and high-efficiency isolated DC-DC converter development.

For engineers reviewing the MAX15159EVKIT# datasheet, MAX15159EVKIT# pinout, MAX15159EVKIT# application, or MAX15159EVKIT# equivalent, this kit enables rapid functional verification of multiphase flyback control, optocoupler feedback integration, Bode plot measurement, REFIN-based output voltage tuning, and IEEE 802.3af/at/bt PD interface compliance via onboard MAX5996C circuitry.

Technical Context

The MAX15159EVKIT# implements a proven six-layer PCB design centered on the MAX15159ATJ+ TQFN32-EP controller, configured for single-phase flyback operation with RCD clamp supply (10V), banana-jack input/output interfaces, and test points for EN/UVLO, CLKIN, FB, REFIN, BODE+, BODE−, and VOUT regulation monitoring.

It supports flexible configuration: output voltage adjustment via FB resistor divider or external 1.5V–2.2V REFIN source; switching frequency selection (480kHz–4MHz) via FREQ/CLK pin resistor or external clock; and optional optocoupler feedback by reworking R7/R55–R70. Dual EV kits can be synchronized for triple- or quad-phase operation using jumpers J1–J4.

Key Specifications

Availability

MAX15159EVKIT# is available at Aetrix Electronics and suitable for PoE-powered device validation, isolated flyback converter prototyping, and high-voltage DC-DC reference design requiring stable component supply, full documentation support, and RoHS-compliant evaluation hardware.

Supply support for MAX15159EVKIT# 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

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets with precision power, timing, and interface solutions.

The MAX15159EVKIT# belongs to Analog Devices' Power Management Evaluation Kit product line, engineered specifically to accelerate design-in of high-voltage isolated controllers for PoE, telecom, and industrial power applications where reliability, efficiency, and regulatory compliance are critical.

FAQ

What is the primary function of the MAX15159EVKIT#?

The MAX15159EVKIT# is an evaluation platform for the MAX15159 high-voltage multiphase boost/flyback controller. It provides a fully assembled, six-layer PCB design with banana jacks, test points, and onboard circuitry-including MAX5996C for PoE compliance-to validate flyback operation, output regulation, frequency tuning, and optocoupler feedback behavior under real-world conditions. The MAX15159EVKIT# does not operate as a standalone power supply but serves exclusively as a characterization tool for the MAX15159 IC.

Can the MAX15159EVKIT# be used for triple-phase or quad-phase evaluation?

Yes - the MAX15159EVKIT# supports multi-phase operation when paired with a second identical unit. Jumpers J1–J4 enable synchronization between two boards to configure primary/secondary controller roles for triple-phase or quad-phase flyback topologies, as specified in the MAX15159 data sheet. Single-board operation remains valid for standard single-phase flyback evaluation without modification.

How is output voltage adjusted on the MAX15159EVKIT#?

Output voltage on the MAX15159EVKIT# is adjustable via two methods: (1) modifying the resistor divider network connected to the FB pin, or (2) applying an external reference voltage (1.5V–2.2V) to the REFIN pin using the EXT_REF test point and jumper J10 configuration. Default output is 54V; both methods preserve loop stability when implemented per the MAX15159 data sheet compensation guidelines.

Does the MAX15159EVKIT# include PoE interface capability?

Yes - the MAX15159EVKIT# integrates a complete MAX5996C circuit enabling IEEE 802.3af/at/bt Powered Device (PD) functionality, including detection signature, classification signature, and inrush current-controlled power switch. This allows direct validation of PoE compatibility when the MAX15159 controls the isolated flyback stage supplying the PD interface, with R54 installed to enable the MAX5996C section.

What equipment is required to operate the MAX15159EVKIT#?

Required equipment includes: one 80V DC power supply (PS1) for VIN (set to 48V typical), one optional 6V DC supply (PS2) for external REFIN, a 0–1.6A load, digital voltmeters, and an oscilloscope with probes. Banana jacks simplify input/output connections, while test points (EN, CLKIN, FB, BODE+, BODE−, etc.) support signal monitoring and loop analysis without soldering or probing sensitive nodes.