ASL1003NTKJ

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ASL1003NTKJ is a precision, step-less 4-channel constant current LED driver from Advanced Semiconductor, Inc. It is designed to be used in a variety of applications, ranging from automotive instrumentation, head lighting, back lighting, off‐rail lighting and elevator lighting.

The device is a PMIC (Power Management IC) designed for low-cost applications such as LED Drivers. ASL1003NTKJ is designed to work with a wide range of public power supply voltages, ranging from 5 V to 25 V, with a maximum output current of 1 A per channel in the power-efficiency mode and 2 A per channel in the low-ripple mode. It provides a wide range of adjustable levels of brightness with adjustable pulse width. It also includes an output current monitor that can be used as a dimming control indicator. It also can be used in battery-powered applications.

In automotive applications, the device is capable of providing ultra-low-ripple currents to ensure stable illumination. It also has a very low quiescent current that is particularly suitable in automotive headlights. The device is also able to provide LED dimming via the current-controlled output. The device prevents damage to LEDs due to a short circuit.

ASL1003NTKJ can be used in a variety of lighting applications, such as consumer lighting, industrial lighting, connected light, medical lighting and automotive lighting. The device can also be used in home appliances and consumer electronic products. It also provides a well-defined sink current and source current output, making it suitable for LED driver and display applications.

The working principle of the device is based on a two-stage architecture. The first stage is a current-controlled output stage, where the LED current is regulated through the voltage-controlled output. The second stage is a voltage-controlled output stage, which controls the LED current by adjusting the control voltage. The device operates in a power-efficiency mode, where the LED current is regulated based on the voltage-controlled output, and in a low-ripple mode, where the LED current is regulated based on the current-controlled output.

The device can be programmed to provide a wide range of dimming levels and PWM sequences, allowing the user to adjust the lighting level and to schedule lighting levels according to the environment. The device can also be used in combination with other PMICs, such as power converters and lighting controllers, to provide a highly efficient and effective lighting solution.

The device’s configurable parameters, combined with its wide range of output currents and low quiescent current, make it ideal for a variety of PMIC - LED Driver applications.

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