Monolithic Power Systems Inc. MP2410AGJ-Z
- Part No.:
- MP2410AGJ-Z
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- LED Drivers
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
MP2410AGJ-Z.pdf
- Description:
- IC LED DRV RGLTR PWM 2A TSOT23-6
- Quantity:
- Payment:

- Shipping:

Inventory:11,987
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Product details
Overview
MP2410AGJ-Z from Monolithic Power Systems is a 24V-input, 2A-output synchronous step-down LED driver IC with integrated 100mΩ high-side MOSFET and 80mΩ low-side synchronous rectifier, operating at fixed 1MHz switching frequency and supporting analog/PWM dimming on a single EN/DIM pin for handheld flashlight and IR LED illumination systems.
For engineers reviewing the MP2410AGJ-Z datasheet, MP2410AGJ-Z pinout, MP2410AGJ-Z application, or MP2410AGJ-Z equivalent, this page delivers verified technical context, package-specific pin functions, real-world dimming behavior, thermal protection thresholds, and validated alternative options for LED current regulation in compact portable designs.
Technical Context
The MP2410AGJ-Z implements peak current mode control with a 100mV internal feedback reference and 1MHz fixed-frequency oscillator to regulate LED current via external sense resistor, enabling fast transient response and stable loop compensation without external compensation components.
It integrates dual protection architecture: cycle-by-cycle current limiting (5.5A typical OCP threshold) combined with NTC-based ambient temperature monitoring (0.82V low-threshold, 1.25V high-threshold) and thermal shutdown at 150°C with 60°C hysteresis, ensuring robust operation under open-LED, short-circuit, and overtemperature faults.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.2V to 24V - supports wide-range industrial and battery-powered inputs including 12V/24V rails and multi-cell Li-ion stacks. |
| Max Output Current | 2A continuous - delivers full-scale LED drive for high-brightness flashlight or multi-IR-LED arrays without external current amplification. |
| Switching Frequency | 1MHz fixed - enables use of small 4.7µH inductors and reduces EMI filtering requirements in space-constrained PCB layouts. |
| Feedback Reference | 100mV ±7mV - allows precise current setting with 50mΩ sense resistor for 2A output (±7% tolerance over -40°C to +125°C). |
| Dimming Interface | Analog (0.7–1.44V) + PWM (100Hz–2kHz) on EN/DIM - eliminates need for separate dimming control circuitry in portable lighting designs. |
| Thermal Shutdown | 150°C with 60°C hysteresis - prevents permanent damage during sustained overload while enabling automatic recovery after cooling. |
| Package | TSOT23-6 - 1.6mm × 2.9mm footprint with exposed pad for thermal dissipation up to 1.25W at 25°C ambient. |
Pinout & Package
MP2410AGJ-Z is housed in a thermally enhanced TSOT23-6 package with 0.95mm pitch, featuring an exposed thermal pad on the bottom side for improved heat transfer to PCB copper. Pin 1 is marked by a dot or beveled edge; orientation follows JEDEC MO-178 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Power ground reference | Primary return path for LED current, SW node, and internal regulator; must connect directly to large copper pour for thermal and noise control. |
| 2 SW | Switch node | Drives external inductor; carries high di/dt ripple current; requires short, wide trace routing away from sensitive FB/NTC nodes. |
| 3 VIN | Main power input | Accepts 4.2–24V unregulated supply; requires local 10µF ceramic capacitor placed within 2mm of pin for input surge suppression. |
| 4 FB | Current-sense feedback | Monitors voltage across external sense resistor; 100mV reference sets LED current; high-impedance input (75nA max leakage) minimizes error. |
| 5 EN/DIM | Enable and dimming control | Single-pin interface for on/off control (0.59V turn-on threshold) and dual-mode dimming: analog (0.7–1.44V) or PWM (≥1.5V amplitude). |
| 6 BST | Bootstrap supply | Connects to SW via 0.1µF ceramic capacitor to generate floating gate drive for high-side MOSFET; enables 100mΩ RDS(ON) conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | 80mΩ low-side switch replaces external Schottky diode, improving efficiency to 97% and eliminating reverse-recovery losses. |
| Integrated thermal protection | NTC pin accepts external thermistor to scale LED current linearly with ambient temperature, preventing thermal runaway in enclosed fixtures. |
| Auto-restart fault recovery | 2.4ms hiccup timer resets converter after open-LED, short-circuit, or overtemperature events-no manual reset required. |
| Single-pin dimming | EN/DIM pin supports seamless transition between analog and PWM dimming modes without changing hardware or firmware logic. |
| Fixed-frequency operation | 1MHz clock ensures predictable EMI profile and simplifies filter design versus variable-frequency alternatives. |
Applications
| Handheld Flashlight Driver | Infrared Illumination System |
|---|---|
|
Use Scenario: High-intensity tactical flashlight powered by two 18650 Li-ion cells (6–8.4V) driving 3-series white LEDs at 1.5A. IC Role / Device Role / Timing Role: Primary constant-current LED driver regulating output via 66mΩ sense resistor; 1MHz switching enables compact 2.2µH inductor. Use Value: Delivers >95% efficiency at 7V input, extends battery runtime by 12% versus asynchronous buck drivers, and supports momentary turbo mode via EN/DIM PWM burst. |
Use Scenario: Night-vision camera module using 8× 850nm IR LEDs in 2×4 parallel-string configuration, driven from 12V automotive rail. IC Role / Device Role / Timing Role: Synchronous buck controller maintaining 2A total current with <±3% line/load regulation; NTC pin monitors heatsink temperature. Use Value: Prevents IR LED wavelength drift and lumen degradation by reducing current 30% when ambient exceeds 60°C, extending optical subsystem lifetime. |
| Portable Medical Device Backlight | Industrial Barcode Scanner LED Array |
|
Use Scenario: Battery-operated patient monitor with 4.3″ TFT display requiring uniform 20mA per LED across 12 white LEDs in 3 strings. IC Role / Device Role / Timing Role: Constant-current source with analog dimming via microcontroller DAC output (0–1.4V) on EN/DIM pin for smooth brightness control. Use Value: Eliminates visible PWM flicker in clinical environments while achieving <0.5% current matching between strings via shared FB reference. |
Use Scenario: Ruggedized handheld scanner using pulsed 940nm IR LEDs for rapid barcode capture, powered from USB 5V supply. IC Role / Device Role / Timing Role: High-speed current switch enabling 100ns LED turn-on via PWM dimming at 1kHz; built-in SCP protects against lens contamination shorts. Use Value: Survives repeated LED+–LED− short events caused by dust ingress, maintaining >100k scan cycles without field failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED current regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPQ2410AGJ-A | Automotive-grade AEC-Q100 qualified version with extended temp range (–40°C to +150°C) and tighter VFB tolerance (±3%). | Required for automotive headlamp modules or ADAS illumination where qualification compliance is mandatory. | Select when functional safety (ISO 26262) or automotive qualification drives BOM requirements. |
| LT3466-1EDD#TRPBF | 40V-input, 1.2A-capable monolithic LED driver with 300kHz switching and no integrated NTC interface. | Suitable for higher-voltage industrial signage but lacks thermal foldback and requires external dimming logic. | Choose only if input exceeds 24V or if legacy LT3466 footprint compatibility is critical. |
Compared with MP2410AGJ-Z, MPQ2410AGJ-A adds automotive qualification at higher cost and same footprint, while LT3466-1EDD offers higher voltage headroom but sacrifices integrated thermal management and dimming simplicity-making MP2410AGJ-Z optimal for cost-sensitive, thermally constrained portable LED systems.
Availability
MP2410AGJ-Z is available at Aetrix Electronics and suitable for handheld flashlight development, infrared illumination systems, and portable medical device backlighting requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for MP2410AGJ-Z 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 20 years of leadership in DC/DC conversion and LED driver innovation.
The MP2410A product line targets compact, high-efficiency LED current regulation in battery-powered and space-constrained applications, emphasizing integration of protection, dimming, and thermal management in minimal footprint packages.
FAQ
What is the minimum input voltage required to start MP2410AGJ-Z?
The MP2410AGJ-Z has a UVLO turn-on threshold of 3.5V to 4.0V (typical 3.7V), with 0.12V hysteresis. It will not initiate switching until VIN rises above this threshold, ensuring reliable startup from partially discharged Li-ion cells or unstable input rails.
Can MP2410AGJ-Z drive LEDs in series only, or does it support parallel configurations?
MP2410AGJ-Z regulates current through a single external sense resistor, so it inherently drives LEDs in series. Parallel configurations require individual current-setting resistors per string or external current-mirror circuitry to prevent thermal runaway.
How does the NTC pin function without an external thermistor?
If left unconnected, the NTC pin floats at ~1.25V due to internal bias current, placing the device in full-current mode. Connecting a 10kΩ NTC thermistor between NTC and GND enables temperature-dependent current scaling based on its resistance curve.
What is the maximum allowable inductor DCR for stable 2A operation?
For 2A continuous output, the inductor's DC resistance must remain below 100mΩ to limit I²R losses and maintain thermal stability. Higher DCR increases junction temperature and may trigger thermal shutdown under full-load conditions.
Does MP2410AGJ-Z support synchronization to an external clock?
No-MP2410AGJ-Z uses an internal fixed 1MHz oscillator and does not provide SYNC or CLKIN pins. External clock synchronization is not supported; frequency variation is limited to ±20% across input voltage and temperature.
What happens during an open-LED fault condition?
When the LED string opens, FB voltage drops to 0V, causing the controller to operate at maximum duty cycle (~94%). Output voltage rises toward VIN, but internal protections clamp SW node voltage and disable switching after timeout to prevent overstress.
Is the BST capacitor value critical, and what type is recommended?
A 0.1µF X7R ceramic capacitor rated ≥10V must be placed directly between BST and SW pins. Lower values cause insufficient gate drive voltage; larger values increase startup time. Tolerance should be ±10% to ensure stable 5.1V bootstrap voltage.
MP2410AGJ-Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Down (Buck)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 4.2V
- Voltage - Supply (Max):
- 24V
- Voltage - Output:
- -
- Current - Output / Channel:
- 2A
- Frequency:
- 1MHz
- Dimming:
- Analog, PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
MP2410AGJ-Z FAQ
1.How can I place an order for MP2410AGJ-Z through Aetrix?
Please submit a Request for Quotation (RFQ) for MP2410AGJ-Z on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MP2410AGJ-Z reliable?
The price and inventory of MP2410AGJ-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2410AGJ-Z is usually 5 days.
3.What payment methods are accepted for MP2410AGJ-Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2410AGJ-Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP2410AGJ-Z?
MP2410AGJ-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP2410AGJ-Z order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MP2410AGJ-Z?
For technical support, including MP2410AGJ-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2410AGJ-Z requirements.
6.How does Aetrix verify that MP2410AGJ-Z is sourced from the original manufacturer or authorized distributors?
All MP2410AGJ-Z products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MP2410AGJ-Z meets industry standards.
7.What is the process for return or replacement of MP2410AGJ-Z?
All MP2410AGJ-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2410AGJ-Z, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MP2410AGJ-Z part is unused and in its original packaging.
Return procedure for MP2410AGJ-Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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