Analog Devices Inc./Maxim Integrated MAX17606SFBEVKIT#

Overview

MAX17606SFBEVKIT# from Maxim Integrated is an evaluation kit for the MAX17606 secondary-side synchronous MOSFET driver IC, designed to validate flyback converter operation in DCM/BCM modes using logic-level or standard nMOSFETs. It supports 4.5V–36V input, delivers 2A/4A gate drive, features programmable minimum off-time (115–1550ns), and enables high-efficiency rectification in isolated 5V/3A designs.

For engineers reviewing the MAX17606SFBEVKIT# datasheet, MAX17606SFBEVKIT# pinout, MAX17606SFBEVKIT# application, or MAX17606SFBEVKIT# equivalent, this kit provides validated reference layout, thermal management guidance, TOFF resistor tuning, gate timing characterization, and efficiency benchmarking against diode-based flyback topologies.

Technical Context

The MAX17606SFBEVKIT# implements a complete secondary-side synchronous rectification solution for isolated flyback converters, with hardware support for drain-sense-based turn-on (-94mV threshold) and current-sense-derived turn-off (+30mV threshold). It integrates precise timing control including 240ns minimum on-time and programmable blanking via external RTOFF resistor.

Designed around the MAX17606 IC in 6-lead SOT-23 package, the kit demonstrates kelvin-connected DRN and GND routing, VDRV LDO regulation at 7.0V ±0.4V, and robust ringing immunity through 0.87V DRN rising-edge blanking. It validates operation across -40°C to +125°C ambient with thermal shutdown protection.

Key Specifications

Availability

MAX17606SFBEVKIT# is available at Aetrix Electronics and suitable for power supply design validation, flyback converter efficiency benchmarking, synchronous rectification qualification, and thermal performance testing requiring stable component supply and documented reference implementation.

Supply support for MAX17606SFBEVKIT# 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 ICs for industrial, automotive, communications, and computing applications.

The MAX17606 product line delivers secondary-side synchronous rectifier drivers optimized for isolated flyback converters, targeting improved efficiency, reduced thermal stress, and simplified layout in low-to-medium-power AC/DC and DC/DC power supplies.

FAQ

What is the primary function of the MAX17606SFBEVKIT#?

The MAX17606SFBEVKIT# is an evaluation kit for the MAX17606 secondary-side synchronous MOSFET driver IC. It enables engineers to validate flyback converter designs using synchronous rectification instead of diodes, demonstrating measurable efficiency gains, thermal improvements, and timing behavior under real DCM/BCM conditions. The kit includes all necessary components, layout, and test points to evaluate the MAX17606 in a production-representative environment.

Does the MAX17606SFBEVKIT# support both DCM and BCM flyback operation?

Yes, the MAX17606SFBEVKIT# is explicitly validated for both Discontinuous Conduction Mode (DCM) and Border Conduction Mode (BCM) operation, as confirmed by its typical application circuit (Figure 2) and associated waveforms in the MAX17606 datasheet. The kit's component selection-including transformer WE750342955, MOSFET BSZ040N04LSG, and TOFF resistor R10-supports stable switching and accurate timing control across both modes.

How does the MAX17606SFBEVKIT# implement drain-sense timing control?

The MAX17606SFBEVKIT# uses the MAX17606's DRN pin connected via R9 (4.7Ω) to the drain of the synchronous MOSFET (Q2-BSZ040N04LSG) to detect voltage transitions. Turn-on triggers at -94mV (body-diode conduction), while turn-off occurs at +30mV (programmed current threshold). The kit implements kelvin sensing per Maxim's layout guidelines to ensure accurate, noise-immune detection critical for reliable synchronous rectification.

What is the role of the TOFF resistor on the MAX17606SFBEVKIT#?

On the MAX17606SFBEVKIT#, the TOFF resistor (R10 = 2.74kΩ) sets the programmable minimum off-time (115–1550ns range) to suppress false triggering caused by drain-node ringing after MOSFET turn-off. This blanking window-activated when DRN rises above 0.87V-ensures the MAX17606 ignores transient negative excursions and maintains clean gate timing, directly improving system reliability in high-frequency flyback designs.

Can the MAX17606SFBEVKIT# be used with different MOSFETs or output voltages?

Yes, the MAX17606SFBEVKIT# is adaptable: its DRN sense resistor (R9), TOFF resistor (R10), and gate drive loop are configurable for various nMOSFETs (e.g., FDMS86102LZ or BSZ040N04LSG) and output voltages (e.g., 5V/3A shown, scalable to 12V/1A or 24V/0.5A). Layout guidelines and component footprints support rework, and the MAX17606's 4.5V–36V VIN range and 7V VDRV output enable broad compatibility without redesign.