Analog Devices Inc./Maxim Integrated MAX17693BEVKIT#

Overview

MAX17693BEVKIT# from Maxim Integrated is a fully assembled and tested evaluation kit designed to validate the MAX17693B no-opto isolated flyback converter IC in a 5V/0.25A output configuration. It operates across an 18V–36V input range, delivers ±5% output regulation without optocouplers, and features primary-side sensing with 150kHz switching frequency.

For engineers reviewing the MAX17693BEVKIT# datasheet, MAX17693BEVKIT# pinout, MAX17693BEVKIT# application, or MAX17693BEVKIT# equivalent, this kit enables rapid validation of isolated DC-DC conversion performance, efficiency (up to 88%), soft-start behavior (20ms), and temperature-compensated voltage regulation over –40°C to +125°C.

Technical Context

The MAX17693BEVKIT# implements the MAX17693B IC-a 4.2V–60V input, 76V nMOSFET-integrated flyback controller in a 12-pin TDFN package-configured for isolated +5V output. Its primary-side sensing eliminates optocouplers, and external loop compensation provides design flexibility for transformer and feedback tuning.

Key operational parameters include resistor-programmable EN/UVLO (via R2/R12 divider), SYNC/DITHER pin support for external clock synchronization or frequency dithering, VCC overdrive capability, and a fixed 150kHz switching frequency. The board uses a Coilcraft ZC1515-AE transformer with 1:0.45:0.675 turns ratio.

Key Specifications

Availability

MAX17693BEVKIT# is available at Aetrix Electronics and suitable for isolated power supply validation, flyback converter reference design verification, and no-opto topology qualification requiring stable component supply and full pre-assembled functionality.

Supply support for MAX17693BEVKIT# 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 is a semiconductor company specializing in analog and mixed-signal ICs for power management, interface, sensing, and secure communications.

The MAX17693B product line targets isolated DC-DC conversion in space-constrained, cost-sensitive applications where optocoupler elimination and primary-side regulation are critical design goals.

FAQ

What is the purpose of the MAX17693BEVKIT#?

The MAX17693BEVKIT# is a ready-to-use evaluation platform for the MAX17693B no-opto flyback controller. It validates isolated 5V/0.25A output performance across 18V–36V input, enabling engineers to verify regulation accuracy, efficiency, transient response, and thermal behavior without custom PCB development. The MAX17693BEVKIT# includes all necessary passive components and a proven layout.

Does the MAX17693BEVKIT# require an optocoupler for output regulation?

No, the MAX17693BEVKIT# does not use an optocoupler. It leverages the MAX17693B's proprietary primary-side sensing technique to regulate the isolated 5V output within ±5% across line, load, and temperature. This eliminates optocoupler-related aging, gain drift, and layout complexity-key advantages confirmed in the MAX17693BEVKIT# performance report.

How is input enable and UVLO configured on the MAX17693BEVKIT#?

On the MAX17693BEVKIT#, EN/UVLO is set via jumper JU2: shunt position 1–2 connects the EN pin directly to VIN for always-on operation, while removing the shunt configures a resistor divider (R2/R12) to program a custom UVLO threshold. This dual-mode setup allows flexible power sequencing validation for the MAX17693BEVKIT#.

Can the MAX17693BEVKIT# be synchronized to an external clock?

Yes, the MAX17693BEVKIT# supports external clock synchronization and frequency dithering via the SYNC/DITHER pin. Jumper JU1 defaults to ground (disabling the function), but removing the shunt allows connection to an external clock source. This capability helps reduce EMI peaks during system-level compliance testing using the MAX17693BEVKIT#.

What transformer is used on the MAX17693BEVKIT#?

The MAX17693BEVKIT# uses the Coilcraft ZC1515-AE EP7 SMT transformer with a 1:0.45:0.675 turns ratio (1–2 : 5,6–7,8 : 3–4), rated for 100µH ±10% and 0.5A. Its specified leakage inductance and coupling factor are optimized for the MAX17693B's primary-side regulation algorithm and validated in the MAX17693BEVKIT# schematic and layout documentation.