AL8861MP-13

Product Overview

Category: Integrated Circuit (IC)

Use: LED Driver

Characteristics: - High efficiency - Constant current output - Wide input voltage range - Dimming capability - Over-temperature protection

Package: SOP-8

Essence: The AL8861MP-13 is a high-efficiency LED driver IC designed for driving single or multiple series-connected LEDs. It provides a constant current output, ensuring consistent brightness and preventing damage to the LEDs.

Packaging/Quantity: The AL8861MP-13 is available in a SOP-8 package. The quantity per package may vary depending on the supplier.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Current Range: Up to 1.5A
• Efficiency: Up to 95%
• Dimming Control: Analog/PWM
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AL8861MP-13 has eight pins arranged as follows:

```

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| | --| VDD GND|-- Pin 1: Ground (GND) --| VIN NC|-- Pin 2: No Connection (NC) --| DIM EN|-- Pin 3: Enable (EN) --| FB CS|-- Pin 4: Current Sense (CS) --| SW NC|-- Pin 5: No Connection (NC) --| LX NC|-- Pin 6: No Connection (NC) --| NC VDD|-- Pin 7: Power Supply (VDD) |_______| ```

Functional Features

• High Efficiency: The AL8861MP-13 utilizes advanced switching technology to achieve high efficiency, reducing power consumption and heat generation.
• Constant Current Output: It provides a stable and accurate constant current output, ensuring consistent brightness of the connected LEDs.
• Wide Input Voltage Range: The IC can operate within a wide input voltage range, making it suitable for various applications.
• Dimming Capability: The AL8861MP-13 supports analog or PWM dimming control, allowing for adjustable brightness levels.
• Over-Temperature Protection: The IC incorporates over-temperature protection to prevent damage due to excessive heat.

Advantages and Disadvantages

Advantages: - High efficiency results in energy savings - Constant current output ensures uniform brightness - Wide input voltage range allows for versatile applications - Dimming capability provides flexibility in lighting control - Over-temperature protection prevents damage to the IC and LEDs

Disadvantages: - Limited maximum output current (up to 1.5A) - Requires external components for proper operation

Working Principles

The AL8861MP-13 operates as a buck LED driver, converting the higher input voltage to a lower regulated voltage required by the LEDs. It uses a switching regulator topology to efficiently drive the LEDs with a constant current. The IC adjusts the duty cycle of the switching signal based on the feedback from the current sense pin, maintaining a stable current output.

Detailed Application Field Plans

The AL8861MP-13 is widely used in various lighting applications, including: - Indoor and outdoor LED lighting fixtures - Automotive lighting systems - Backlighting for LCD displays - Streetlights and architectural lighting

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the AL8861MP-13 are: - AL8860MP-13 - AL8862MP-13 - AL8863MP-13 - AL8864MP-13

These models offer similar features and functionality, providing options for different current requirements and specific application needs.

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