MP2481DH-LF-Z

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MP2481DH-LF-Z

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IC LED DRVR RGLTR PWM 1.2A 8MSOP

  • HerstellerMonolithic Power Systems Inc.

  • Herstellerteil #MP2481DH-LF-Z

  • Paket MSOP-8

  • Auf Lager3723

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Spezifikationen

Attribut Wert
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Active
Type DC DC Regulator
Topology Step-Down (Buck)
Internal Switch(s) Yes
Number of Outputs 1
Voltage - Supply (Min) 4.5V
Voltage - Supply (Max) 36V
Current - Output / Channel 1.2A
Frequency 1.4MHz
Dimming Analog, PWM
Applications Automotive, Backlight, Lighting
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount

Übersicht

Description

The MP2481DH-LF-Z is a high-efficiency, step-down, constant current LED driver designed for driving high-brightness LEDs. It operates over a wide input voltage range and delivers up to 3A output current. The device integrates a 150mΩ power MOSFET, optimal for minimizing system cost and improving efficiency. It supports analog and PWM dimming, offering versatile control over LED brightness.
Additional features include a wide input voltage range, typically from 4.5V to 55V, which makes it suitable for various applications such as automotive, industrial, and architectural lighting. The MP2481DH-LF-Z offers excellent thermal performance and over-current protection, enhancing overall system reliability. It also features a high switching frequency up to 1MHz, allowing the use of smaller external components and reducing the overall solution size.
The device is available in a thermally-enhanced SOIC-8 package, which helps in heat dissipation and ensures robust performance in demanding environments. This LED driver is ideal for applications where efficiency, compactness, and reliability are critical.

Equivalent

The MP2481DH-LF-Z is a step-down LED driver by Monolithic Power Systems. Equivalent products typically include similar step-down LED drivers. Some possible equivalents are:
1. Texas Instruments LM3405: A constant current buck converter for driving high-brightness LEDs.
2. ON Semiconductor NCP3066: A monolithic switching regulator for LED and general-purpose applications.
3. Diodes Incorporated AL8805: A constant current step-down regulator for driving high-power LEDs.
Ensure to verify specifications like input voltage, output current, and features for compatibility.

Features

The MP2481DH-LF-Z is a high-efficiency, step-down, LED driver designed for precision lighting applications. Key features include:
1. Wide Input Voltage Range: Supports 4.5V to 55V, accommodating various power sources.
2. High Efficiency: Delivers up to 97% efficiency, optimizing energy use and reducing heat output.
3. Constant Current Output: Provides stable and consistent current to LEDs, ensuring uniform brightness.
4. Integrated Power MOSFET: Minimizes external components, aiding in compact circuit design.
5. Dimming Capabilities: Offers PWM and analog dimming options, allowing flexible brightness control.
6. Protection Features: Includes over-voltage, over-current, and thermal shutdown protections, enhancing safety and reliability.
7. High Switching Frequency: Operates at a high frequency of up to 2MHz, reducing the size of external components.
8. Compact Package: Housed in an 8-pin SOIC package with exposed pad, facilitating efficient thermal management.
These features make the MP2481DH-LF-Z ideal for automotive, architectural, and display lighting applications where efficiency and reliability are crucial.

Pinout

The MP2481DH-LF-Z is a step-down LED driver IC. It typically comes in an 8-pin SOIC package. The primary function of the MP2481DH-LF-Z is to efficiently drive high-brightness LEDs with a constant current from a wide input voltage range. It features a high-side current sense, which allows for accurate control of the LED current. The device is designed to operate in continuous conduction mode to provide regulated current to the LED string while minimizing EMI.
Key features include:
1. Wide input voltage range: 4.5V to 55V.
2. High efficiency up to 97%.
3. Internal 4.5A power switch.
4. High-side current sense.
5. Cycle-by-cycle current limiting.
6. Open and short LED protection.
7. Thermal shutdown protection.
This IC is suitable for a variety of applications, including automotive lighting, general illumination, and architectural lighting systems.

Manufacturer

The MP2481DH-LF-Z is manufactured by Monolithic Power Systems, Inc. (MPS). MPS is a company that designs, develops, and markets high-performance semiconductor-based power solutions. They focus on providing power management solutions for a variety of applications, including industrial, automotive, consumer electronics, computing, and telecommunications. MPS is known for its innovative approach to integrating power functions in a highly efficient and compact manner, addressing the growing demand for energy-efficient and sustainable electronic products.

Application

The MP2481DH-LF-Z is a high-efficiency, step-down LED driver designed for applications that require efficient power delivery and robust performance. Its main application areas include:
1. LED Lighting: Used in general lighting solutions such as residential, commercial, and industrial fixtures.
2. Automotive Lighting: Suitable for automotive interior and exterior lighting systems.
3. Display Backlighting: Utilized in LCD backlighting for TVs, monitors, and other display panels.
4. Architectural Lighting: Employed in decorative and functional architectural lighting projects.
5. Signage and Advertising: Powers LED systems in signs and advertising displays.
This driver is favored for its reliability, efficiency, and compact design, making it versatile for various LED-based applications.

Package

The MP2481DH-LF-Z is typically available in an SOIC-8 package. This package type is a small outline integrated circuit with 8 leads, suitable for surface mounting on printed circuit boards.

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