Monolithic Power Systems Inc. MP2410GJE-P

Overview

MP2410GJE-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 fixed 1MHz switching frequency and supporting deep analog dimming via EN/DIM pin. It delivers stable current to white LED strings in handheld flashlights and infrared illumination systems with inherent open-LED and short-circuit protection.

For engineers reviewing the MP2410GJE-P datasheet, MP2410GJE-P pinout, MP2410GJE-P application, or MP2410GJE-P equivalent, key selection criteria include its 100mV feedback reference, NTC-based thermal derating capability, TSOT23-8 package footprint, and compatibility with 4.2–24V input rails in space-constrained LED driver designs.

Technical Context

The MP2410GJE-P implements peak-current-mode control with internal error amplifier comparing FB voltage against a precision 100mV reference, generating COMP voltage to regulate high-side switch conduction time. Its fixed 1MHz oscillator ensures predictable EMI behavior and enables compact LC filter design.

It integrates dual protection paths: cycle-by-cycle current limiting (5.5A typical OCP threshold) for overcurrent events, and dedicated NTC monitoring circuitry that scales output current based on external thermistor voltage-dropping to zero when NTC pin falls below 0.41V. Thermal shutdown activates at 150°C with 60°C hysteresis.

Key Specifications

Pinout & Package

MP2410GJE-P is housed in a thermally enhanced TSOT23-8 package (2.9mm × 1.6mm × 0.85mm), optimized for high-power density LED driver layouts with exposed thermal pad (pin 8 NC not connected; pin 1 NTC provides thermal feedback path).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MPQ2410GJE-AEC1, the MP2410GJE-P lacks automotive qualification but matches all electrical performance and thermal specs for industrial/commercial use; versus LT3466-1EDD, it delivers 2A output with synchronous rectification in half the board area and 3% higher peak efficiency.

Availability

MP2410GJE-P is available at Aetrix Electronics and suitable for handheld flashlights, infrared illumination systems, industrial panel backlights, and portable medical device indicators requiring stable component supply across production volumes from prototype to mass manufacturing.

Supply support for MP2410GJE-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 MP2410 product line targets compact, high-efficiency LED lighting applications where integration, thermal resilience, and analog dimming fidelity are critical - designed specifically for space-constrained portable and industrial LED systems.

FAQ

What is the minimum recommended input voltage for reliable startup of MP2410GJE-P?

The MP2410GJE-P has a guaranteed turn-on threshold of 3.7V (typical) with 0.12V hysteresis, but stable operation requires VIN ≥ 4.2V per datasheet specifications. Below 4.2V, the internal regulator cannot sustain bias for the error amplifier and gate drivers, leading to erratic switching or failure to initiate soft-start. Always verify startup behavior with actual load and input capacitance in final design.

Can MP2410GJE-P drive more than 2A of LED current?

No - the device is rated for up to 2A continuous output current, enforced by internal current-limit circuitry (5.5A typical OCP threshold). Attempting higher currents causes thermal shutdown or cycle-by-cycle limiting, degrading regulation accuracy and potentially exceeding junction temperature limits. For >2A applications, consider parallel MP2410GJE-P units with current-sharing resistors or higher-current alternatives like MP2451.

How does the NTC pin function without an external thermistor?

If left unconnected, the internal 58μA pull-up current sources voltage at the NTC pin (~1.25V), placing the device outside thermal foldback range and allowing full output current. However, this disables thermal protection - the IC will still shut down at 150°C via die-temperature OTP, but without early current derating. Always connect a properly selected NTC for LED thermal management in enclosed or high-ambient environments.

Is the TSOT23-8 package of MP2410GJE-P RoHS-compliant and lead-free?

Yes - MP2410GJE-P is fully RoHS-compliant, lead-free, and halogen-free per MPS green policy. The TSOT23-8 package uses matte tin (Sn) plating on leads and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) for unlimited floor life at ≤30°C/60% RH. Reflow profile must follow peak temperature ≤260°C for 10 seconds maximum.

What happens during an open-LED fault, and how is it cleared?

During open-LED fault, FB voltage drops below 5mV, triggering inherent protection: the controller forces 94% maximum duty cycle, raising output voltage toward VIN while maintaining safe switch-node voltage stress. No latch-off occurs - normal operation resumes immediately upon LED reconnection and FB rising above 5mV. This avoids system-level fault signaling overhead in simple indicator applications.

Does MP2410GJE-P support PWM dimming in addition to analog dimming?

No - MP2410GJE-P supports analog dimming only via DC voltage on EN/DIM (0.7–1.44V range). Applying PWM to EN/DIM causes unpredictable behavior due to internal 22ms turn-off delay and lack of synchronization with switching clock. For PWM dimming, use external MOSFET in series with LED string controlled by separate PWM signal, keeping MP2410GJE-P enabled continuously.

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

Pin 8 is a true no-connect terminal - electrically isolated from all internal circuitry and intended solely for mechanical stability and thermal pad alignment in the TSOT23-8 package. It must remain unconnected in PCB layout; soldering or routing to this pin may cause internal leakage or thermal measurement errors. Refer to MPS package drawing MP2410 Rev. 1.01 page 17 for land pattern guidance.