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MP2481DH-LF-Z
IC LED DRVR RGLTR PWM 1.2A 8MSOP
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規格
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | DC DC Regulator |
| Topology | Step-Down (Buck) |
| InternalSwitch(s) | Yes |
| NumberofOutputs | 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 |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) Exposed Pad |
概述
Description
The MP2481DH-LF-Z is a monolithic step-down LED driver designed for driving high-brightness LEDs efficiently. It operates with a wide input voltage range and can deliver a constant output current, making it suitable for various lighting applications. Key features include high efficiency, a wide input voltage range, and current control capabilities. The device is housed in a compact package, making it ideal for use in space-constrained applications. It also offers protection features such as thermal shutdown, over-current protection, and under-voltage lockout, enhancing its reliability in demanding environments. Overall, the MP2481DH-LF-Z is a versatile and robust solution for LED driving needs.
Features
The MP2481DH-LF-Z is a high-efficiency, step-down, LED driver designed for driving high-brightness LEDs. Key features include:
1. Wide Input Voltage Range: It supports a broad input voltage range, making it versatile for various applications.
2. Step-Down Converter: The device efficiently steps down higher voltages to the desired LED operating voltage.
3. High Efficiency: Designed to maximize power efficiency, which is critical for battery-powered and energy-sensitive applications.
4. Integrated Power MOSFET: Contains an internal power MOSFET for compact design and reduced component count.
5. Current Regulation: Provides accurate LED current regulation, ensuring consistent brightness and performance.
6. Dimming Control: Offers dimming options through PWM control, allowing for adjustable brightness levels.
7. Protection Features: Includes protections such as overcurrent protection, thermal shutdown, and under-voltage lockout to enhance reliability and safety.
8. Compact Package: Available in a compact package suitable for space-constrained designs.
These features make the MP2481DH-LF-Z ideal for applications like general lighting, automotive lighting, and backlighting where efficient LED driving is required.
1. Wide Input Voltage Range: It supports a broad input voltage range, making it versatile for various applications.
2. Step-Down Converter: The device efficiently steps down higher voltages to the desired LED operating voltage.
3. High Efficiency: Designed to maximize power efficiency, which is critical for battery-powered and energy-sensitive applications.
4. Integrated Power MOSFET: Contains an internal power MOSFET for compact design and reduced component count.
5. Current Regulation: Provides accurate LED current regulation, ensuring consistent brightness and performance.
6. Dimming Control: Offers dimming options through PWM control, allowing for adjustable brightness levels.
7. Protection Features: Includes protections such as overcurrent protection, thermal shutdown, and under-voltage lockout to enhance reliability and safety.
8. Compact Package: Available in a compact package suitable for space-constrained designs.
These features make the MP2481DH-LF-Z ideal for applications like general lighting, automotive lighting, and backlighting where efficient LED driving is required.
Package
The MP2481DH-LF-Z is available in an 8-pin SOIC (Small Outline Integrated Circuit) package. This package type is commonly used for surface-mount technology applications, providing a compact and efficient design suitable for various electronic circuits.
Pinout
The MP2481DH-LF-Z is a step-down LED driver designed by Monolithic Power Systems. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Here is a brief overview of its pin functions:
1. SW (Pin 1): The switch output, connected to the inductor.
2. GND (Pin 2): Ground pin of the device.
3. FB (Pin 3): Feedback pin for regulating the LED current.
4. EN (Pin 4): Enable pin to turn the device on or off.
5. COMP (Pin 5): Compensation pin for stabilizing the control loop.
6. VCC (Pin 6): Supply voltage for the internal circuitry.
7. VIN (Pin 7): Input voltage supply pin.
8. DIM (Pin 8): Dimming control input for PWM dimming.
This configuration allows the MP2481DH-LF-Z to efficiently drive LEDs with a wide input voltage range and facilitates functionalities like dimming and protection features.
1. SW (Pin 1): The switch output, connected to the inductor.
2. GND (Pin 2): Ground pin of the device.
3. FB (Pin 3): Feedback pin for regulating the LED current.
4. EN (Pin 4): Enable pin to turn the device on or off.
5. COMP (Pin 5): Compensation pin for stabilizing the control loop.
6. VCC (Pin 6): Supply voltage for the internal circuitry.
7. VIN (Pin 7): Input voltage supply pin.
8. DIM (Pin 8): Dimming control input for PWM dimming.
This configuration allows the MP2481DH-LF-Z to efficiently drive LEDs with a wide input voltage range and facilitates functionalities like dimming and protection features.
Manufacturer
The MP2481DH-LF-Z is manufactured by Monolithic Power Systems (MPS). MPS is a semiconductor company that specializes in designing and manufacturing integrated power solutions. Their products are used across various industries, including automotive, consumer electronics, industrial applications, and telecommunications. MPS focuses on providing efficient, compact, and reliable power management solutions, making them a significant player in the power semiconductor market.
Application
The MP2481DH-LF-Z is a high-brightness LED driver commonly used in applications such as LED backlighting for LCD displays, signage, and general lighting. It is also suitable for automotive lighting, architectural lighting, and any application requiring efficient and precise control of LED brightness. Its ability to handle high current and provide dimming capabilities makes it versatile for various LED lighting solutions.
Equivalent
The MP2481DH-LF-Z is a step-down LED driver from Monolithic Power Systems. Equivalent products may include:
1. Texas Instruments: LM3404 - LED driver with similar functionality.
2. Diodes Incorporated: AL8805 - Step-down LED driver.
3. ON Semiconductor: NCL30160 - LED driver optimized for offline applications.
4. Analog Devices: LT3476 - Multi-topology LED driver.
These alternatives offer similar features and performance, but specific compatibility should be verified based on application requirements.
1. Texas Instruments: LM3404 - LED driver with similar functionality.
2. Diodes Incorporated: AL8805 - Step-down LED driver.
3. ON Semiconductor: NCL30160 - LED driver optimized for offline applications.
4. Analog Devices: LT3476 - Multi-topology LED driver.
These alternatives offer similar features and performance, but specific compatibility should be verified based on application requirements.
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