MP2482DN-LF-Z

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MP2482DN-LF-Z

IC REG BUCK ADJUSTABLE 5A 8SOIC

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規格

Package Tape & Reel (TR)
ProductStatus Not For New Designs
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 4.5V
Voltage-Input(Max) 30V
Voltage-Output(Min/Fixed) 0.81V
Voltage-Output(Max) 27V
Current-Output 5A
Frequency-Switching 420kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width) Exposed Pad

概述

Description

The MP2482DN-LF-Z is a step-down LED driver designed to efficiently power high-brightness LEDs. This device is specifically engineered to operate with a wide input voltage range, typically from 4.5V to 55V, making it suitable for a variety of applications, including automotive, industrial, and architectural lighting. The MP2482 achieves high efficiency through its internal high-side power MOSFET, which supports a maximum output current of up to 2A.
Key features of the MP2482DN-LF-Z include its ability to provide a constant current output, ensuring consistent LED brightness, and its high switching frequency, which allows for the use of smaller external components, reducing overall system size and cost. The driver also includes various protection mechanisms, such as over-current protection, short-circuit protection, and thermal shutdown, enhancing its reliability in demanding environments.
Moreover, the MP2482DN-LF-Z is designed with a compact and thermally efficient package, commonly a 10-pin DFN (dual-flat no leads) package, which helps to optimize heat dissipation. Overall, it is a versatile and robust solution for driving high-performance LED lighting systems.

Features

The MP2482DN-LF-Z is a high-efficiency, step-down, switching regulator designed for driving high-power LEDs. It features a wide input voltage range, typically from 4.5V to 55V, which makes it suitable for various applications. The device operates in a constant current mode, ideal for LED applications, ensuring consistent brightness and performance.
Key features include a high efficiency of up to 97%, which reduces power loss and heat generation. The MP2482DN-LF-Z also incorporates a high-side current sense, allowing for accurate current regulation and simple control loop design. It has a programmable switching frequency, which adds flexibility in noise-sensitive applications. The thermal shutdown and under-voltage lockout protection enhance its reliability and safety.
The device comes in a compact, thermally-enhanced package, contributing to a smaller overall footprint and efficient thermal management. This makes it well-suited for use in automotive, industrial, and general lighting applications where space and efficiency are critical. Its robust performance and adaptive features make the MP2482DN-LF-Z a versatile choice for LED driving needs.

Package

The MP2482DN-LF-Z is typically available in a SOIC-8 package type, which is a Small Outline Integrated Circuit with 8 pins. This package type is widely used for surface-mount devices and provides a balance of size and thermal performance suitable for various electronic applications.

Pinout

The MP2482DN-LF-Z is a step-down (buck) LED driver produced by Monolithic Power Systems. It is designed for applications that require high-efficiency LED driving with constant current. This device features a total of 8 pins. Below is a brief overview of its pin functions:
1. SW (Pin 1): The switch node where the inductor is connected.
2. GND (Pin 2): Ground connection for the device.
3. FB (Pin 3): Feedback input for setting output current.
4. COMP (Pin 4): Compensation pin for stabilizing the control loop.
5. EN (Pin 5): Enable input to turn the device on or off.
6. VIN (Pin 6): Input supply voltage.
7. BST (Pin 7): Bootstrap pin for driving the high-side MOSFET.
8. SS (Pin 8): Soft-start control pin.
The MP2482DN-LF-Z provides features like thermal shutdown, over-current protection, and a wide input voltage range to ensure reliable operation in various LED lighting applications.

Manufacturer

The MP2482DN-LF-Z is manufactured by Monolithic Power Systems (MPS). MPS is a semiconductor company that specializes in designing, developing, and providing high-performance power solutions. Founded in 1997 and headquartered in Kirkland, Washington, MPS focuses on delivering energy-efficient power conversion, motion control, and power management solutions for a wide range of applications, including consumer electronics, industrial, computing, automotive, and telecommunications. The company's products are known for their innovative design, which integrates multiple functions into single-chip solutions to reduce size, improve efficiency, and lower costs.

Application

The MP2482DN-LF-Z is a step-down LED driver designed for applications requiring high efficiency and precise current regulation. It is commonly used in areas such as LED lighting systems, signage, automotive lighting, and general-purpose LED illumination. The device is particularly suitable for applications where compact size and high power efficiency are crucial.

Equivalent

The MP2482DN-LF-Z is a DC-DC step-down converter typically used in LED drivers. Equivalent products include:
1. Texas Instruments LM3409: A high-efficiency, DC-DC constant current LED driver.
2. Linear Technology LT3476: A quad output LED driver with internal PWM dimming.
3. ON Semiconductor NCL30000: A versatile LED driver for general lighting applications.
4. Diodes Incorporated AL8860: A step-down converter designed for driving LEDs.
When selecting an equivalent, ensure to verify specifications like input voltage range, output current, and efficiency to match your application requirements.

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