Monolithic Power Systems Inc. EV6604B-F-00A

Overview

EV6604B-F-00A from Monolithic Power Systems is an evaluation board designed to demonstrate the MP6604B dual H-bridge motor driver IC, supporting 4.5V–45V input voltage, 2.5A per bridge output current, PHASE/EN control interface, and TSSOP-28EP packaging. It enables rapid validation of stepper and brushed DC motor drive circuits in industrial motion control and automated equipment.

For engineers reviewing the EV6604B-F-00A datasheet, EV6604B-F-00A pinout, EV6604B-F-00A application, or EV6604B-F-00A equivalent, this board provides verified reference schematics, truth-table-driven logic configuration (xENBL/xPHASE/xBRAKE), on-board test points (NFLT, PGNDA, PGNDB), and dual-channel current-sense resistors (R2/R3) for real-time load monitoring and fault analysis.

Technical Context

The EV6604B-F-00A implements a complete functional test platform for the MP6604B IC, integrating all required power conditioning (C1–C8), logic-level translation (R1–R13), LED status indication (LED1), and jumper-selectable control modes (JP1–JP3). It supports both manual (SW1) and MCU-driven (CN1) input signal generation.

Board-level design includes dual 100mΩ current-sense resistors (R2/R3) for independent A/B channel load current measurement, TVS diode D1 for input transient suppression, and dedicated VCP/CPA/CPB charge-pump capacitors (C5/C6) enabling high-side MOSFET gate drive under 45V VIN operation.

Key Specifications

Availability

EV6604B-F-00A is available at Aetrix Electronics and suitable for industrial motor control prototyping, robotics actuator validation, and embedded motion subsystem development requiring stable component supply and traceable reference hardware.

Supply support for EV6604B-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 converters, motor drivers, and battery management solutions.

The MP6604B product line delivers integrated dual H-bridge drivers for cost-sensitive, space-constrained motion applications-designed to replace discrete MOSFET gate-driver combinations while maintaining robust thermal performance and fault resilience.

FAQ

What input voltage ranges does the EV6604B-F-00A support?

The board accepts 4.5 V to 45 V DC on the VIN connector and requires a separate 3.3 V or 5 V VCC supply for logic-level circuitry. These rails are decoupled by C1 (100 µF/63 V electrolytic), C3/C4 (1 µF/16 V ceramic), and C5/C6 (4.7 µF/100 V ceramic) to ensure stable operation across full load and switching transients.

How is motor direction and braking controlled on this evaluation board?

Direction and braking are managed per H-bridge using three logic inputs: xPHASE (forward/reverse), xENBL (enable), and xBRAKE (brake mode). Truth Table 1 in the reference document defines all eight valid combinations, including Hi-Z, GND-GND (brake), and VIN-VIN (fast decay) states-configurable via CN1 or SW1.

Does the EV6604B-F-00A include current sensing capability?

Yes-it integrates two precision 100 mΩ, 1%, 2512-format current-sense resistors (R2 and R3) placed in the low-side return path of each H-bridge. Voltage drop across these resistors provides direct analog feedback proportional to load current, accessible at test points PGNDA and PGNDB.

Can the EV6604B-F-00A drive stepper motors?

Yes-the MP6604B IC supports bipolar stepper motor control when operated in dual full-bridge mode. The board's AOUT1/AOUT2 and BOUT1/BOUT2 outputs deliver complementary drive signals with synchronized PHASE/EN timing, enabling full-step, half-step, and microstepping (with external indexer) configurations.

What protection features are implemented on the evaluation board?

The board incorporates overvoltage clamping via SMA TVS diode D1 on VIN, thermal relief via exposed pad on U1 (MP6604BGF), open-drain nFAULT reporting with pull-up resistor R11, and independent enable/disable control per bridge to prevent shoot-through. No reverse-polarity or overcurrent shutdown circuitry is added beyond the IC's native protections.

Is external programming or firmware required to operate the EV6604B-F-00A?

No-operation is hardware-defined. All control logic is implemented through physical connections: SW1 sets static input states, JP1 selects between internal/external VCP charge-pump routing, and CN1 accepts TTL/CMOS-level signals from an external MCU. No firmware upload or configuration tool is needed.