Monolithic Power Systems Inc. EV6614-N-00A

Overview

EV6614-N-00A from Monolithic Power Systems is an evaluation board for the MP6614 35V H-bridge DC motor driver IC, designed to demonstrate full operational capability including bidirectional motor control, cycle-by-cycle current regulation, and integrated current sensing without external shunt resistors. It supports input voltages from 5V to 35V, delivers up to 2A continuous output current, and interfaces via logic-level IN1/IN2 control signals with 3.3V or 5V VCC.

For engineers reviewing the EV6614-N-00A datasheet, EV6614-N-00A pinout, EV6614-N-00A application, or EV6614-N-00A equivalent, this board enables rapid validation of MP6614-based motor drive designs in brushed DC motor, solenoid, and resistive-inductive load applications - with on-board ISET threshold tuning, VISEN current-sense output, and comprehensive protection monitoring.

Technical Context

The EV6614-N-00A implements the MP6614's internal charge pump to drive four N-channel MOSFETs in an H-bridge configuration, enabling high-side and low-side switching without external gate drivers. It operates across 5V–35V VIN and accepts 3.3V/5V logic inputs via CN1 or manual SW1 toggling.

Current regulation is achieved through a voltage-controlled ISET pin (trip at 1.5V), scaled by R1 and RV1 to set precise output current limits (e.g., 1V/A with 10kΩ). VISEN provides a proportional analog voltage output (1V per amp) for real-time load current monitoring without shunt loss.

Key Specifications

Availability

EV6614-N-00A is available at Aetrix Electronics and suitable for brushed DC motor control validation, solenoid actuation prototyping, and H-bridge power stage characterization requiring stable component supply and documented reference design implementation.

Supply support for EV6614-N-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 DC-DC conversion, motor control, and battery management solutions.

The MP6614 product line targets compact, efficient H-bridge motor drivers for space-constrained applications such as portable medical devices, robotics actuators, and industrial automation modules - emphasizing integrated protection and shunt-free current sensing.

FAQ

What input voltage range does the EV6614-N-00A support?

The board accepts 5V to 35V DC input voltage on the VIN connector, matching the MP6614's operational range. This allows testing under nominal 12V or 24V industrial rails, as well as higher-voltage battery scenarios up to 35V, with built-in UVLO preventing operation below ~4.5V.

How is current limiting configured on this evaluation board?

Current limiting is set via the ISET pin using R1 and the onboard 10kΩ trimming potentiometer (RV1). With a 10kΩ total resistance to ground, the trip point is 1.5A (1.5V ÷ 1V/A); adjusting RV1 changes the effective resistance to scale the limit between ~0.5A and 2A depending on layout parasitics and thermal derating.

Can the EV6614-N-00A drive inductive loads other than motors?

Yes - it is validated for resistive-inductive loads (e.g., 3Ω + 1.5mH) and explicitly supports solenoids and generic inductive actuators. The integrated OCP, SCP, and OTP protections remain active regardless of load type, and freewheeling paths are managed internally through the H-bridge MOSFET body diodes.

Does the board provide access to all MP6614 control and feedback pins?

Yes - all critical signals are routed to test points or connectors: IN1/IN2 (CN1 or SW1), VISEN and ISET (yellow 1mm test points), OUT1/OUT2 (2mm screw terminals), plus dedicated VIN, VCC, and GND connections. No MP6614 pin is omitted from user access.

Is external gate driving required when using this evaluation board?

No - the MP6614 integrates a charge pump that generates boosted gate-drive voltages for its internal N-channel MOSFETs. The EV6614-N-00A requires no external gate drivers, bootstrap capacitors, or high-side level shifters, simplifying layout and reducing BOM count for proof-of-concept designs.