Monolithic Power Systems Inc. MP2410AGJE-P

Overview

MP2410AGJE-P from Monolithic Power Systems is a 24V, 2A, synchronous step-down LED driver IC with integrated high-side MOSFET (100mΩ) and low-side synchronous rectifier (80mΩ), operating at a fixed 1MHz switching frequency and supporting both analog and PWM dimming on a single EN/DIM pin for handheld flashlight and IR LED illumination systems.

For engineers reviewing the MP2410AGJE-P datasheet, MP2410AGJE-P pinout, MP2410AGJE-P application, or MP2410AGJE-P equivalent, this device is selected for compact, thermally robust LED current regulation in space-constrained portable lighting where input voltage ranges from 4.2V to 24V and precise dimming control is required.

Technical Context

The MP2410AGJE-P implements peak current mode control with a 100mV feedback reference, enabling fast transient response and stable loop compensation without external compensation components. Its internal 100mΩ high-side switch and 80mΩ low-side rectifier minimize conduction losses across the 4.2–24V input range.

It integrates dual-dimming functionality: analog dimming via 0.7–1.44V DC on EN/DIM and PWM dimming using 100Hz–2kHz signals >1.5V amplitude. Protection includes cycle-by-cycle current limiting, open-LED detection, short-circuit protection, NTC-based thermal derating, and thermal shutdown at 150°C with 60°C hysteresis.

Key Specifications

Pinout & Package

MP2410AGJE-P is housed in a TSOT23-8 package - an 8-pin, 2.9mm × 1.6mm, 0.95mm height surface-mount package with exposed pad for enhanced thermal dissipation (θ_JA = 100°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LED driver applications.

Compared with MP2410AGJE-P, MPQ2410AGJE-A adds automotive reliability at higher cost and same footprint, while LT3466-1EDD requires external diode, lacks NTC support, and delivers 40% less current - making MP2410AGJE-P optimal for cost-sensitive, thermally managed portable LED systems.

Availability

MP2410AGJE-P is available at Aetrix Electronics and suitable for handheld flashlight development, infrared illumination systems, portable medical backlights, and industrial scanner LED arrays requiring stable component supply across production volumes from prototype to mass manufacturing.

Supply support for MP2410AGJE-P 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 over two decades of expertise in DC/DC conversion, LED drivers, and motor control solutions.

The MP2410A product line targets compact, high-efficiency LED current regulation for portable and battery-powered lighting, emphasizing integration, thermal resilience, and single-pin dimming simplicity.

FAQ

What is the minimum recommended input capacitance for MP2410AGJE-P?

A 10μF X5R or X7R ceramic capacitor is specified as sufficient for most applications. It must be placed as close as possible to the VIN and GND pins to suppress high-frequency switching noise and limit input surge current. Lower-ESR capacitors improve stability under dynamic load conditions and reduce radiated emissions.

Can MP2410AGJE-P drive LEDs in series only, or does it support parallel configurations?

The MP2410AGJE-P is designed for constant-current regulation in series-connected LED strings. Driving parallel LEDs without individual current balancing resistors or active per-string regulation violates its feedback architecture and risks current mismatch, thermal runaway, and premature LED failure.

How does the NTC thermal protection function without external op-amps or ADCs?

The MP2410AGJE-P integrates a precision 58μA current source that flows through the external NTC resistor. The resulting voltage at the NTC pin is compared internally against three thresholds (VH_NTC, VL_NTC, VSD_NTC) to linearly scale down LED current or shut off entirely - all without external signal conditioning.

What is the purpose of the NC pin (Pin 8) in the TSOT23-8 package?

Pin 8 is a no-connect terminal with no internal bond wire or circuit connection. It must remain unconnected and floating - tying it to GND, VIN, or any other net may cause unpredictable behavior due to parasitic coupling or ESD path disruption in the die layout.

Does MP2410AGJE-P support adjustable switching frequency?

No - the MP2410AGJE-P operates at a fixed 1MHz switching frequency determined by internal oscillator circuitry. There is no external resistor, capacitor, or pin to adjust frequency; this ensures consistent EMI profile and simplifies filter design but precludes optimization for ultra-low-noise or ultra-high-efficiency trade-offs.

What happens during open-LED fault condition?

When the LED string opens, FB voltage drops to 0V. The error amplifier drives COMP to maximum, forcing the high-side MOSFET to operate at 94% duty cycle. Output voltage rises toward VIN, but internal protection prevents damage - no latch-up occurs, and the device remains ready for recovery upon reconnection.

Is the BST capacitor value critical, and what type is recommended?

Yes - a 0.1μF X5R or X7R ceramic capacitor is mandatory between BST and SW pins. This capacitor supplies gate drive energy for the high-side MOSFET. Using insufficient capacitance or high-ESR types causes gate underdrive, increased R_DS(ON), thermal stress, and potential dropout at high duty cycles.