Monolithic Power Systems Inc. EV2410-JE-00A

Overview

EV2410-JE-00A from Monolithic Power Systems is a dedicated evaluation board for the MP2410GJE synchronous step-down LED driver IC, designed to drive two white LEDs in series (5.9 V typical) at 1.5 A across an 8–24 V input range. It integrates peak current mode control, analog dimming, and comprehensive fault protection including open-LED, short-circuit, and NTC-based thermal regulation.

For engineers reviewing the EV2410-JE-00A datasheet, EV2410-JE-00A pinout, EV2410-JE-00A application, or EV2410-JE-00A equivalent, this board enables rapid validation of MP2410GJE's performance in high-efficiency LED biasing, transient response under load steps, analog dimming linearity, and thermal management behavior in compact portable lighting systems.

Technical Context

The EV2410-JE-00A implements a fixed 1 MHz switching frequency synchronous buck topology with internal 100 mΩ high-side MOSFET and 80 mΩ low-side synchronous rectifier. It supports analog dimming via EN/DIM pin (0.6–1.5 V control range) and includes dedicated NTC input for temperature-dependent current derating.

Board-level design incorporates a 4.7 µH power inductor, 4.7 µF/35 V and 10 µF/35 V ceramic output capacitors, and precision 0.1 Ω and 0.2 Ω sense resistors to set and monitor 1.5 A LED current. Protection features are hardware-asserted without firmware dependency.

Key Specifications

Availability

EV2410-JE-00A is available at Aetrix Electronics and suitable for infrared LED driver validation, handheld computer backlight qualification, and flashlight prototype development requiring stable component supply and documented thermal protection behavior.

Supply support for EV2410-JE-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 analog and power ICs, with emphasis on efficiency, integration, and reliability in DC-DC conversion and LED driver solutions.

The EV2410-JE-00A belongs to MPS's LED driver evaluation platform family, engineered to accelerate design-in of monolithic synchronous buck LED drivers in space-constrained, thermally sensitive applications such as portable illumination and machine vision.

FAQ

What input voltage range does the EV2410-JE-00A support?

The board operates from 8 V to 24 V DC input, matching the MP2410GJE IC's rated range. Testing confirms stable regulation and >90% efficiency across this span with 2-series WLED load at 1.5 A, verified per Rev. 1.0 test report at TA = 25°C.

How is LED current set and measured on this evaluation board?

LED current is set by parallel sense resistors R1 (0.1 Ω) and R2 (0.2 Ω), yielding 0.067 Ω total resistance. With 100 mV FB reference, this establishes 1.5 A nominal current. IL measurement is accessible at TP2 (inductor current) and inferred from V_R1+R2 using oscilloscope or DMM.

Does the board support PWM dimming, or only analog dimming?

Only analog dimming is implemented via the EN/DIM pin (0.6–1.5 V control range). The schematic and quick start guide confirm no onboard PWM signal conditioning or external clock interface; dimming is strictly DC-voltage controlled with linear current response.

What thermal protection mechanisms are implemented?

The board supports NTC-based thermal regulation via the NTC pin. When an NTC thermistor is connected, decreasing resistance with rising temperature reduces V_NTC, triggering automatic LED current reduction before thermal shutdown (150°C typical) activates.

Can the EV2410-JE-00A drive more than two LEDs in series?

No - the board is optimized for two-series WLEDs (5.9 V typical). Driving higher-V_F strings would exceed the MP2410GJE's maximum output voltage capability and compromise regulation margin, as confirmed by schematic layout and test conditions in the official documentation.

Are all capacitors and resistors populated on the board?

No - C1B, C1C, C1D, and C2B are marked "NC" (no connect) in the BOM and intended as optional EMI filter locations. Only C1A (4.7 µF), C2A (10 µF), C3 (10 nF), and C4 (2.2 nF) are required for baseline operation and are fully populated.