AP1651AEL

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LEDs have become ubiquitous in modern life. They are used for displays and backlighting in consumer electronics, automotive, commercial, industrial and consumer applications. In most cases, LEDs need to be driven by constant current sources to ensure the light output is reliable. One LED driver IC commonly used for LED applications is the AP1651AEL.

The AP1651AEL is a high-performance and low drop-out LED driver designed to drive up to nine LEDs in series. It features a wide input voltage range of 4.7V to 28V and a controllable current limit of up to 20A. The device also features a low on-resistance of 16 mΩ and a thermally enhanced package.

The AP1651AEL driver is capable of driving a wide range of LEDs, including high-power types that require up to 20A. The device is designed to maintain the brightness of the LEDs over temperature, voltage, and time. It has both over-temperature and short-circuit protection and is able to withstand transients up to 36V.

The AP1651AEL consists of an integrated high-side switch, an error amplifier, and an input-referred current limit. The error amplifier monitors the LED current and compares it to an external reference voltage. If the LED current exceeds the limit set by the external voltage, the error amplifier reduces the output voltage to lower the LED current. The output voltage is also adjustable with a potentiometer.

The AP1651AEL is optimized for use in automotive, industrial and consumer applications, such as lighting and panel backlighting. The IC can be used for applications requiring up to 20A regulation. The device provides efficient and reliable operation with a wide input voltage range of 4.7V to 28V, with a maximum operating temperature of +105°C.

The AP1651AEL is a versatile and efficient solution for driving high-power LEDs. With its wide input voltage range, adjustable output voltage and current limit, and short-circuit and over-temperature protection, the AP1651AEL is an ideal choice for driving up to nine LEDs in series. By using the AP1651AEL, designers are able to maintain consistent and reliable LED performance, even in challenging environments.

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