Monolithic Power Systems Inc. EV24830-S-00C

Overview

EV24830-S-00C from Monolithic Power Systems is an evaluation board for the MP24830 90V buck-mode white LED driver IC, designed to demonstrate configurable current-limit LED driving across 5V–90V input with 200kHz switching frequency, 1A output current capability, and integrated analog/PWM dimming control. It supports up to 8-series LEDs (≤28V output) and includes full protection features including OCP, SCP, open-string, and thermal shutdown.

For engineers reviewing the EV24830-S-00C datasheet, EV24830-S-00C pinout, EV24830-S-00C application, or EV24830-S-00C equivalent, this board enables rapid validation of MP24830-based high-input-voltage LED lighting designs-especially where wide VIN range, stable current regulation, and dual-dimming interface are required in automotive, backlighting, and industrial illumination systems.

Technical Context

The EV24830-S-00C implements a synchronous buck topology using the MP24830 controller IC in SOIC-14, operating in current-mode control for fast transient response and simplified loop compensation. Input voltage range spans 5V to 90V, supporting LED strings up to 28V with cycle-by-cycle over-current protection and output over-voltage protection set at 28V.

Dimming is implemented via a single DIM pin accepting both analog (0.7–2V) and PWM (100Hz–20kHz) signals, while EN logic-level enable (5V threshold) and separate reference ground allow flexible system-level integration-including positive-to-negative power conversion schemes.

Key Specifications

Availability

EV24830-S-00C is available at Aetrix Electronics and suitable for automotive LED lighting, LCD TV backlighting, general-purpose high-voltage LED illumination, and industrial signage applications requiring stable component supply and validated reference design support.

Supply support for EV24830-S-00C 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 converters, LED drivers, motor drivers, and battery management solutions.

The MP24830 product line targets high-input-voltage LED lighting applications requiring buck-mode efficiency, wide dimming flexibility, and comprehensive fault protection-optimized for automotive, display, and industrial environments.

FAQ

What is the maximum LED string voltage supported by the EV24830-S-00C?

The board supports LED strings up to 28V, enforced by the MP24830's output over-voltage protection (OVP) threshold. Exceeding this triggers immediate shutdown to prevent damage. Typical use cases include 6–8 white LEDs (3.2–3.5V each), totaling ~22–28V forward drop.

Can the EV24830-S-00C operate below 5V input?

No-the MP24830 IC requires minimum VIN = VOUT + 2V, and the evaluation board is validated only down to 5V input. Operation below 5V is not supported due to internal biasing and gate-drive limitations of the controller.

How is dimming configured on the EV24830-S-00C?

Dimming uses a single DIM pin: apply 0.7–2V DC for analog dimming (linear current scaling), or a 5V PWM signal (100Hz–20kHz) for digital dimming. No external components are needed-both modes are internally decoded by the MP24830 without mode-select pins.

Does the board include thermal management provisions?

Yes-the PCB layout includes copper pour areas under U1 (MP24830) and Q1 (MOSFET), plus thermal vias connecting top/bottom layers. The SOIC-14 package relies on PCB conduction; no heatsink is required at ≤1A load with ambient ≤60°C.

Is the EV24830-S-00C RoHS-compliant and halogen-free?

Yes-all components on the board meet RoHS Directive 2011/65/EU and are halogen-free per IEC 61249-2-21. MPS confirms green status for MP24830 and associated passive components used in this revision.

What inductor value is used on the EV24830-S-00C?

The board uses a 22µH shielded SMD inductor (Murata 1274AS-H-220M=P3) with 68mΩ DCR and 4.2A saturation current. This value is optimized for 200kHz operation and 1A output, balancing ripple, efficiency, and transient response.