Monolithic Power Systems Inc. EV6604C-F-00A

Overview

EV6604C-F-00A from Monolithic Power Systems is an evaluation board designed to demonstrate the MP6604C dual H-bridge motor driver IC, supporting 45V input voltage, 2.5A per bridge output current, and independent high-side/low-side control logic. It enables rapid validation of stepper and brushed DC motor drive circuits in industrial motion control and robotics prototyping.

For engineers reviewing the EV6604C-F-00A datasheet, EV6604C-F-00A pinout, EV6604C-F-00A application, or EV6604C-F-00A equivalent, this board provides verified layout, test-point access to all critical signals (nSLEEP, nFAULT, AHS1–BLS2), and configurable logic inputs via SW1 or external MCU through CN1 - essential for functional validation before system integration.

Technical Context

The EV6604C-F-00A implements a complete reference design for the MP6604C TSSOP-28EP dual H-bridge driver, featuring dedicated high-side and low-side input pins per channel (AHS1/ALS1/AHS2/ALS2/BHS1/BLS1/BHS2/BLS2), integrated VREG and charge pump (CPA/CPB), and fault reporting via nFAULT. It supports 4.5V–45V VIN and 3.3V/5V VCC logic supply.

Board-level protection includes 100μF/63V bulk input capacitance (C1), 4.7μF/100V ceramic charge-pump capacitors (C5/C6), 100mΩ current-sense resistors (R2/R3), and reverse-polarity TVS diode D1. All power grounds (PGNDA/PGNDB) are isolated and routed with thermal relief for motor current paths.

Key Specifications

Availability

EV6604C-F-00A is available at Aetrix Electronics and suitable for industrial motor control validation, robotics actuator development, and precision motion subsystem qualification requiring stable component supply and production-ready reference design fidelity.

Supply support for EV6604C-F-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 core expertise in DC-DC conversion, motor drivers, and battery management solutions.

The MP6604C product line delivers dual H-bridge motor control with independent high-side/low-side inputs and integrated gate drive, targeting cost-sensitive, thermally constrained motion systems in factory automation and portable equipment.

FAQ

What motor types can be driven using the EV6604C-F-00A?

The board supports bipolar stepper motors (via full-step or half-step sequencing), brushed DC motors (forward/reverse/brake), and resistive or inductive loads up to 2.5 A per bridge. It is not configured for servo or BLDC commutation without external timing logic.

How is the charge pump configured on this evaluation board?

The MP6604C's internal charge pump is enabled via CPA and CPB pins, each decoupled with 4.7 μF/100 V X7S ceramic capacitors (C5 and C6). No external oscillator or configuration is required - operation is automatic when VIN > 8 V.

Does the board provide current measurement capability?

Yes - two 100 mΩ, 1%, 2512-format sense resistors (R2 and R3) are placed in the low-side return path of Bridge A and Bridge B, enabling direct differential voltage monitoring of load current with external instrumentation.

Can the nSLEEP and nRESET pins be controlled externally?

Yes - both nSLEEP and nRESET are accessible via 1 mm test points and CN1 pin headers. Default pull-up resistors (R11 and R12) ensure active-high default states; external MCU GPIO can override them with open-drain or push-pull logic.

Is thermal performance validated on this board?

Yes - the PCB uses exposed thermal pad under the MP6604C (U1), connected to PGNDA/PGNDB planes with multiple thermal vias. Thermal imaging data in the official design files confirms ≤ 45°C rise at 2.5 A continuous per bridge at 25°C ambient.

What is the purpose of JP1, JP2, and JP3 jumpers?

JP1 selects between internal VREG output and external VCP supply for the charge pump; JP2 and JP3 isolate or connect GND domains (GND1/GND2/GND3/GND4) to verify ground loop effects or enable separate analog/digital grounding strategies during noise analysis.