Monolithic Power Systems Inc. EVQ6610-S-00A

Overview

EVQ6610-S-00A from Monolithic Power Systems is an AEC-Q100-qualified evaluation board for the MPQ6610GS half-bridge power driver IC, supporting 4–55V input and up to 3A continuous load current. It features on-board logic signal generation via jumpers (JP1/JP2), external control interface via P1 connector, internal current sensing, and fault indication output (nFAULT).

For engineers reviewing the EVQ6610-S-00A datasheet, EVQ6610-S-00A pinout, EVQ6610-S-00A application, or EVQ6610-S-00A equivalent, this board enables rapid validation of high-voltage brushed DC motor, solenoid, and relay drive circuits under automotive-grade reliability conditions.

Technical Context

The EVQ6610-S-00A implements a functional test platform for the MPQ6610GS SOIC-8 half-bridge driver, integrating bootstrap capacitor (C2), current-sense scaling network (RV1 + R4), and logic-level translation circuitry for 2.5V/3.3V/5V-compatible EN/IN inputs. It supports both high-side (H) and low-side (L) output states per truth table, with Z (high-impedance) state during disable.

Protection functions are fully exposed: over-current trip threshold set by ISET voltage (1.5V), over-voltage clamp at VIN, thermal shutdown with nFAULT assertion, and fault status visible via LED1. The board's 6.35 cm × 6.35 cm layout includes dedicated test points (FLT, VSET) and isolated power/ground routing for noise-sensitive validation.

Key Specifications

Availability

EVQ6610-S-00A is available at Aetrix Electronics and suitable for brushed DC motor control, solenoid actuation, and relay driving applications requiring stable component supply, automotive qualification traceability, and rapid prototyping capability.

Supply support for EVQ6610-S-00A 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

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs, with design focus on efficiency, integration, and automotive-grade reliability.

The EVQ6610-S-00A belongs to MPS's automotive-qualified evaluation board product line, developed specifically to accelerate design-in of their MPQ6610GS half-bridge drivers in safety-critical motion control systems.

FAQ

What is the purpose of the P1 connector on the EVQ6610-S-00A?

The P1 connector provides a 2-bit header interface for external microcontroller or FPGA control signals (EN and IN), enabling system-level timing and sequencing validation. When used, JP1 and JP2 jumpers must be removed to prevent signal contention with on-board logic generators.

How is over-current protection configured on this evaluation board?

OCP is set via the ISET pin voltage threshold of 1.5 V, scaled by RV1 (10 kΩ trim pot) and R4 (4.99 kΩ). For example, with RV1 grounded, 1 V per 1 A yields a 1.5 A trip point. The actual trip current is adjustable from ~0.5 A to >3 A depending on RV1 setting and load characteristics.

Does the EVQ6610-S-00A include thermal protection circuitry?

Yes - the underlying MPQ6610GS IC integrates over-temperature protection (OTP), which asserts the nFAULT pin low and disables output when junction temperature exceeds safe operating limits. This behavior is observable on the board via LED1 and measurable at the FLT test point.

Can the EVQ6610-S-00A drive inductive loads directly?

Yes - it is designed for brushed DC motors, solenoids, and relays. The board includes flyback diode D1 (NS) across the output, plus 2.2 µF/100 V ceramic capacitor C2 for bootstrap stability, ensuring robust commutation of inductive loads up to 3 A.

What package does the MPQ6610GS use on this board?

The MPQ6610GS is mounted in an SOIC-8 package (U1), confirmed by the Bill of Materials and schematic. Its pinout - including BST, OUT, IN, EN, ISET, nFAULT, VIN, and GND - is fully accessible via test points and solder pads for probing and measurement.

Is the EVQ6610-S-00A compliant with RoHS and automotive standards?

Yes - all components meet RoHS requirements, and the MPQ6610GS IC is AEC-Q100 Grade 1 qualified (−40°C to +125°C ambient). The board itself carries no separate qualification but serves as a reference platform for qualifying designs per automotive functional safety requirements.