AL8808WT-7
Product Overview
Category: Integrated Circuit (IC)
Use: LED Driver
Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Adjustable output current - Thermal shutdown protection
Package: SOT-25
Essence: The AL8808WT-7 is a high-efficiency LED driver IC designed for driving single or multiple LEDs in series. It provides a constant current output, making it suitable for various lighting applications.
Packaging/Quantity: The AL8808WT-7 is available in a SOT-25 package and is typically sold in reels of 3000 units.
Specifications
- Input Voltage Range: 4.5V to 40V
- Output Current Range: Up to 1A
- Dropout Voltage: 200mV at 350mA
- Efficiency: Up to 96%
- Operating Temperature Range: -40°C to +85°C
Pin Configuration
The AL8808WT-7 has the following pin configuration:
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| | --| |-- |____| ```
Pin 1: VIN (Input Voltage) Pin 2: GND (Ground) Pin 3: ADJ (Adjustable Output Current)
Functional Features
- Constant current output for driving LEDs
- Adjustable output current through an external resistor
- Built-in thermal shutdown protection to prevent overheating
- Wide input voltage range allows for versatile applications
- High efficiency ensures minimal power loss
Advantages and Disadvantages
Advantages: - High efficiency results in energy savings - Wide input voltage range accommodates different power sources - Adjustable output current allows flexibility in LED configurations - Thermal shutdown protection prevents damage due to overheating
Disadvantages: - Limited maximum output current of 1A - SOT-25 package may require additional thermal management for high-power applications
Working Principles
The AL8808WT-7 is a constant current LED driver that regulates the current flowing through the connected LEDs. It uses a feedback mechanism to adjust the output current based on the voltage drop across an external resistor connected to the ADJ pin. The IC maintains a constant current by adjusting the voltage across the resistor, ensuring consistent brightness and preventing LED damage due to excessive current.
Detailed Application Field Plans
The AL8808WT-7 can be used in various lighting applications, including: - General illumination - Automotive lighting - Backlighting for LCD displays - Signage and advertising displays - Architectural lighting - Portable devices
Detailed and Complete Alternative Models
Some alternative models to the AL8808WT-7 include: - AL8805WT-7: Similar features but with a lower maximum output current of 500mA - AL8810WT-7: Higher maximum output current of 1.5A, suitable for higher power LED applications - AL8803WT-7: Lower maximum output current of 300mA, designed for low-power LED applications
These alternative models offer different specifications and capabilities, allowing users to choose the most suitable option for their specific requirements.
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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av AL8808WT-7 i tekniska lösningar
Sure! Here are 10 common questions and answers related to the application of AL8808WT-7 in technical solutions:
Q: What is AL8808WT-7? A: AL8808WT-7 is a step-down (buck) LED driver IC manufactured by Diodes Incorporated.
Q: What is the input voltage range for AL8808WT-7? A: The input voltage range for AL8808WT-7 is typically between 4.5V and 60V.
Q: What is the maximum output current supported by AL8808WT-7? A: AL8808WT-7 can support a maximum output current of up to 1A.
Q: Can AL8808WT-7 be used for dimming LED lights? A: Yes, AL8808WT-7 supports PWM dimming control for LED lights.
Q: Is AL8808WT-7 suitable for automotive applications? A: Yes, AL8808WT-7 is designed to meet the requirements of automotive applications.
Q: Does AL8808WT-7 have built-in over-temperature protection? A: Yes, AL8808WT-7 has built-in thermal shutdown protection to prevent overheating.
Q: Can AL8808WT-7 operate in a wide temperature range? A: Yes, AL8808WT-7 can operate in a temperature range of -40°C to +125°C.
Q: What type of package does AL8808WT-7 come in? A: AL8808WT-7 is available in a small SOT25 package.
Q: Can AL8808WT-7 be used in battery-powered applications? A: Yes, AL8808WT-7 has a low quiescent current and is suitable for battery-powered applications.
Q: Are there any evaluation boards or reference designs available for AL8808WT-7? A: Yes, Diodes Incorporated provides evaluation boards and reference designs to help with the implementation of AL8808WT-7 in various applications.
Please note that these answers are general and may vary depending on specific application requirements. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed information.