AHK1421ICA-T1 Application Field and Working Principle

The AHK1421ICA-T1 LED driver is a multi-function LED driving IC developed by HY Electronics Corporation, designed for use with e-paper display applications. It is a highly configurable and versatile LED driver, designed for controlling and driving medium- to high-power LED sticks at 24V. The chip has a wide output voltage range from 9V to 48V, a low average current per channel from 60mA to 400mA, and a long pulse width modulation range from 0.1 to 24kHz.

In addition to its power efficiency and typically low power consumption, the driver has very high reliability, featuring a low-noise internal buck converter and an adjustable maximum current per channel. It also features an adjustable fault output current and an adjustable shutdown timer, allowing the user to customize the operation of the LED driver.

Application Field

The AHK1421ICA-T1 is a highly efficient and versatile LED driver, designed for medium- to high-power LED sticks. It is ideal for e-paper display, lighting, signage, and various industrial applications. It is also suitable for use in lighting systems in retail, automotive, medical and marine applications, as well as for decoration, especially in exhibit and exhibition applications. The chip is reliable and flexible enough to be used in various types of LED sticks, from linear LED strips to individual LED lamps.

Working Principle

The AHK1421ICA-T1 is a multi-function LED driving IC, designed for use with e-paper display applications. The chip has a wide input voltage range, which allows it to be used in various types of LED applications. The chip has two adjustable input stages, a boost stage and a buck stage. The boost stage steps up the voltage to the LED light stick, while the buck stage decreases the voltage, allowing for accurate control of the output power. The chip also features an adjustable fault output current and an adjustable shutdown timer, allowing the user to configure the driver for optimal performance.

The driver has a low average current per channel, a long pulse width modulation range, and a wide output voltage range, allowing the user to adjust the current, the pulse width, and the voltage. The chip has a PWM control pin, which allows the user to control the brightness and color of the LED light. The wide adjustable output voltage range and adjustable maximum current allow the user to fine-tune the operation of the LED driver. The driver has also been designed to provide high efficiency and long life operation.