Monolithic Power Systems Inc. EV5016-L-QH-00B

Overview

EV5016-L-QH-00B from Monolithic Power Systems is an evaluation board for the MP5016-L electronic fuse IC, designed to validate overvoltage clamping, programmable current limiting (0.7A–5A), reverse current blocking, and soft-start control in USB power delivery and hot-swap applications. It integrates the MP5016GQH-L QFN10 IC and IRFHS8342 N-channel MOSFET, operates from 2.7V–15V input, and supports fixed 2.5A or resistor-adjustable current limit.

For engineers reviewing the EV5016-L-QH-00B datasheet, EV5016-L-QH-00B pinout, EV5016-L-QH-00B application, or EV5016-L-QH-00B equivalent, this board enables rapid validation of transient protection, OVP response time (<100 ns), slew-rate-controlled startup, latch-off fault handling, and external MOSFET gate drive timing in high-reliability 5V/12V power rails.

Technical Context

The EV5016-L-QH-00B implements a complete protection reference design centered on the MP5016-L IC, which functions as a programmable current-limited switch with integrated 43mΩ FET and external gate driver for reverse-current blocking. Its MODE pin selects between fixed OVP clamp (e.g., 6.8V) or adjustable threshold via resistor divider.

Startup slew rate is set by DV/DT pin voltage (3.8 V/ms typical) and MODE configuration; ILIMIT pin accepts 0–500 kΩ to program 0.7A–5A current limit or floats for 2.5A default. EN pin provides logic-level enable/disable with 2.0V high-threshold and 1.6V low-threshold.

Key Specifications

Availability

EV5016-L-QH-00B is available at Aetrix Electronics and suitable for USB Power Delivery validation, hot-swap subsystem qualification, and SSD/HDD power rail protection requiring stable component supply and traceable evaluation hardware.

Supply support for EV5016-L-QH-00B 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 analog and power ICs, with core expertise in DC/DC conversion, protection, and motor control solutions.

The MP5016-L product line delivers integrated electronic fuse functionality for USB, storage, and computing interfaces-designed specifically to replace discrete protection circuits with single-chip, latch-off fault management and programmable current/voltage limits.

FAQ

What is the primary function of the EV5016-L-QH-00B evaluation board?

This board demonstrates the MP5016-L electronic fuse IC in a fully assembled, tested configuration. It validates key protection features including programmable current limiting (0.7A–5A), output overvoltage clamping (6.8V/12.5V), reverse current blocking via external MOSFET, and controlled soft-start using the DV/DT pin. It is not a standalone power solution but a verification platform for system-level integration.

How do I configure the current limit on the EV5016-L-QH-00B?

The current limit is set by populating resistor R1 between ILIMIT and GND. With R1 = 300 kΩ (as shipped), the limit is ~2.5A. Values from 0 Ω to 500 kΩ yield 5A down to 0.7A per the MP5016-L datasheet equation I_CL = 750 µA × R_ILIMIT. Leaving ILIMIT floating defaults to 2.5A internal reference.

What OVP thresholds are supported, and how are they selected?

The board supports two fixed OVP clamp voltages: 6.8V (MODE pin tied to VCC) and 12.5V (MODE pin grounded). These are selected by jumpering the MODE test point accordingly. No external resistor divider is required-the MP5016-L internally routes the clamp reference based on MODE logic level.

Does the board provide reverse current protection, and how is it implemented?

Yes-reverse current flow from VOUT to VIN is blocked using the IRFHS8342 N-channel MOSFET driven by the MP5016-L's GATE output. When the device is disabled or latched off, the gate is pulled low, turning off the MOSFET and isolating input from output. This prevents backfeeding during fault or standby conditions.

Can the EN pin be used for sequencing, and what are its logic thresholds?

Yes-the EN pin supports digital enable/disable control with TTL-compatible thresholds: ≥2.0V for turn-on and ≤1.6V for turn-off. This allows synchronization with system power-up sequences or host processor GPIO. The pin has internal 1.2MΩ pull-down, ensuring safe default-off behavior when left unconnected.

What is the measured OVP response time, and under what conditions was it verified?

OVP response time is <100 ns from overvoltage detection to gate turn-off, verified per MPS test report Rev. 1.0 using 5V input, 5V output, floating ILIMIT/MODE/DV/DT pins, 10µF output capacitance, and 25°C ambient. This ultrafast reaction prevents downstream IC damage during ESD or surge events.