Monolithic Power Systems Inc. EV6604C-V-00A

Overview

EV6604C-V-00A from Monolithic Power Systems is a 45V, 2.5A dual H-bridge motor driver evaluation board built around the MP6604CGV IC in QFN-28 (4mm × 5mm) package. It supports independent high-side/low-side control for two full H-bridges, delivers up to 2.5A per channel, accepts 4.5–45V input, and enables rapid prototyping of stepper and brushed DC motor drives.

For engineers reviewing the EV6604C-V-00A datasheet, EV6604C-V-00A pinout, EV6604C-V-00A application, or EV6604C-V-00A equivalent, this board provides validated layout, on-board logic switching (SW1), external MCU interface via CN1, fault monitoring (nFAULT), and sleep/reset control - all critical for motor control validation and firmware integration.

Technical Context

The EV6604C-V-00A implements the MP6604C's dual independent H-bridge architecture with separate HS/LS inputs per channel (AHS1/ALS1/AHS2/ALS2/BHS1/BLS1/BHS2/BLS2), enabling four-quadrant control and configurable drive modes including Hi-Z, high, low, and brake. It integrates VCP charge pump, internal VREG, and nFAULT reporting with open-drain output.

Board-level design includes 100μF/63V bulk input capacitance (C1), 4.7μF/100V ceramic charge-pump caps (C5/C6), current-sense resistors (R2/R3, 100mΩ), and LED status indicator (LED1). Input logic follows truth table mapping xHSx/xLSx to xOUTx states, supporting both manual (SW1) and MCU-driven operation.

Key Specifications

Availability

EV6604C-V-00A is available at Aetrix Electronics and suitable for motor control validation, embedded motion system development, and industrial actuator qualification requiring stable component supply, traceable sourcing, and documented reference design fidelity.

Supply support for EV6604C-V-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 expertise in motor drivers, DC/DC converters, and battery management solutions.

The MP6604C product line targets cost-sensitive, space-constrained brushed and stepper motor applications requiring independent HS/LS control, fast response, and robust fault protection - optimized for factory automation, robotics, and precision positioning systems.

FAQ

What input voltage range does the EV6604C-V-00A support?

The board accepts 4.5 V to 45 V DC input voltage at the VIN connector. Operation below 4.5 V may prevent proper charge pump startup; exceeding 45 V risks damage to the MP6604CGV IC and input capacitors. The onboard C1 (100 μF/63 V) and C5/C6 (4.7 μF/100 V) are rated for this range.

How do I configure motor direction and braking using SW1?

SW1 provides manual control of all eight HS/LS inputs (AHS1, ALS1, AHS2, ALS2, BHS1, BLS1, BHS2, BLS2) via six-position DIP switches. Each switch pair maps to one H-bridge leg. Refer to Table 1 in the quick start guide: e.g., AHS1=1/ALS1=0 sets AOUT1 high; AHS1=0/ALS1=1 sets it low; both 0 or both 1 place it in Hi-Z or brake mode.

Does the board include current sensing or feedback capability?

Yes - two 100 mΩ, 1% shunt resistors (R2 and R3, 2512 package) are placed in series with PGNDA and PGNDB return paths. These enable external current measurement via differential amplifiers or ADC inputs. No onboard signal conditioning is provided; raw sense voltage must be processed externally.

Can I use the EV6604C-V-00A to drive a bipolar stepper motor?

Yes - the dual independent H-bridge topology supports full-step, half-step, and microstepping when driven by an external controller generating coordinated HS/LS sequences. Both bridges (A and B) can be used for one 4-wire bipolar stepper, with AOUT1/AOUT2 driving phase A and BOUT1/BOUT2 driving phase B.

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

JP1 connects VCP (charge pump output) to CPA/CPB pins to enable internal charge pump operation. JP2 and JP3 short VCC to respective GND pins on CN2, allowing optional isolation of VCC supply domains for noise-sensitive applications or external regulation. All three are pre-installed for default operation.

Is thermal management sufficient for continuous 2.5A operation?

The board uses 2-oz copper layers, thermal vias under U1's exposed pad, and large ground pours on both sides. At 25°C ambient and 45 V input, sustained 2.5 A per channel requires forced airflow or heatsinking above ~1.5 A without cooling. Thermal performance data is documented in the MP6604C datasheet, not the EV board guide.