Analog Devices Inc./Maxim Integrated MAX16990EVKIT#

Overview

MAX16990EVKIT# from Maxim Integrated is a fully assembled and tested evaluation kit for the MAX16990 automotive current-mode boost controller, designed to demonstrate front-end preboost functionality in 12V/24V automotive systems. It delivers regulated 8V output at up to 2A (16W), operates from 4.5V–36V input (3V in bootstrapped mode), withstands 42V load-dump for 400ms, and supports external clock synchronization from 100kHz to 1MHz.

For engineers reviewing the MAX16990EVKIT# datasheet, MAX16990EVKIT# pinout, MAX16990EVKIT# application, or MAX16990EVKIT# equivalent, this kit enables rapid validation of dynamic output adjustment, two-phase configuration, cycle-by-cycle current limiting, hiccup-mode fault recovery, and thermal shutdown behavior in automotive DC-DC preboost designs.

Technical Context

The MAX16990EVKIT# implements a synchronous boost converter topology using the MAX16990 IC in a 12-pin TQFN-EP package, integrating low-side FET driver and current-mode control loop. It supports bootstrapped operation down to 3V input and features PGOOD flag, SUP UVLO monitoring, and an external p-MOSFET (P1) for output disconnect during fault conditions.

Hardware configurability includes jumper-selectable enable (JU1), normal/booststrapped supply mode (JU2), and internal/external feedback reference (JU3). Two-phase operation is demonstrated by interconnecting master/slave kits via COMP and SYNCO signals, enabling higher power scalability without redesigning core control architecture.

Key Specifications

Availability

MAX16990EVKIT# is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment head units, and body control modules requiring stable component supply, fast prototyping cycles, and production-ready reference design validation.

Supply support for MAX16990EVKIT# 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management solutions for automotive, industrial, and communications markets.

The MAX16990EVKIT# belongs to Maxim's automotive power management evaluation platform family, engineered specifically to accelerate development of ISO 26262-compliant preboost converters for ASIL-B/C front-end power architectures.

FAQ

What is the primary function of the MAX16990EVKIT#?

The MAX16990EVKIT# is an evaluation kit for the MAX16990 automotive boost controller, providing a ready-to-test hardware platform to validate preboost converter performance. It demonstrates key features including 8V/2A regulated output, 42V load-dump tolerance, external clock sync, and fault protection-enabling engineers to verify MAX16990 behavior before integrating into final vehicle ECUs.

Does the MAX16990EVKIT# support adjustable output voltage?

Yes, the MAX16990EVKIT# supports dynamic output-voltage adjustment via the REFIN pin. Removing jumper JU3 allows an external analog voltage to serve as the feedback reference, replacing the default internal 1V reference. This enables precise tuning of output voltage (e.g., 7.5V–8.5V) to match downstream regulator input requirements in real-world automotive applications using the MAX16990EVKIT#.

Can the MAX16990EVKIT# operate below 4.5V input?

Yes-the MAX16990EVKIT# supports bootstrapped operation down to 3V input by configuring jumper JU2 to pins 2–3. In this mode, the device draws supply from the regulated 8V output instead of VBAT, avoiding UVLO trip during cold-crank events. This capability is intrinsic to the MAX16990 controller and validated on the MAX16990EVKIT# hardware.

How is two-phase operation implemented using the MAX16990EVKIT#?

Two-phase operation is demonstrated by connecting two MAX16990EVKIT# boards: one configured as master (with R8 installed), the other as slave (with R2/R1/C2/C3/R5 removed and R11 installed). Synchronization occurs via SYNCO-to-FSET/SYNC connection, while COMP pins are tied together. This setup scales output current beyond 2A while maintaining regulation stability-verified on the MAX16990EVKIT# platform.

What protection features are demonstrated on the MAX16990EVKIT#?

The MAX16990EVKIT# demonstrates cycle-by-cycle current limiting, hiccup-mode fault recovery, thermal shutdown, SUP undervoltage lockout (UVLO), and PGOOD status flag-all enabled by the underlying MAX16990 IC. An external p-MOSFET (P1) provides active output disconnect during overcurrent or thermal faults, ensuring safe operation during stress testing and failure-mode analysis using the MAX16990EVKIT#.