MIC3230YTSE-TR

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MIC3230YTSE-TR is a low voltage, high efficiency, current-mode control LED driver and is categorized under PMIC - LED Drivers. It is targeted at automotive, commercial and industrial application. It is designed to drive up to four series-connected LEDs with a nominal voltage of 18V and a continuous output current of up to 2 amps per channel.

The MIC3230YTSE-TR features integrated, high-performance and fully-protected current-mode, peak current-mode or dual loop architecture. It incorporates power MOSFETs with a drain voltage rating up to 18V. The device also features a high-speed switching frequency and an adjustable foldback current limit from 50mA to 1A. It delivers a low supply current of only 15 µA during stand-by.

The IC offers an auto-shutdown current limit protection which activates when the output current exceeds the programmed foldback limit. Additionally, the devices feature a thermal shutdown, soft start and thermal ramp up protection. Its softstart makes sure there is no inrush current during power-up, while the device’s thermal shutdown offers protection against heat damage.

An external resistor and a capacitor are used to control the operating frequency and external loop compensation. A voltage sensing feedback circuit is also included to maintain a constant output. The device has an internal OVP (over-voltage protection) which provides short-circuit and open-circuit protection in case of unexpected disturbances.

The MIC3230YTSE-TR has an internal 8-bit digital dimming, which adjusts the LED intensities in steps of 1.25% over the full dimming range. The dimming control terminal allows 0~2.5V input, giving the LED the ability to dim according to the input voltage from the microcontroller.

This device is EMC and ESD compliant, has a temperature range from -40°C to +125°C and comes in a very small TSOP-6 package. It is especially suitable for automotive applications, such as DRL, ambient lighting, and headlamps.

In conclusion, the MIC3230YTSE-TR is an ideal LED driver for automotive, commercial and industrial applications which require minimal power consumption and extended current range for dimmable LEDS. The device is packed with features, such as current limit protection, over-voltage protection and thermal shutdown, which make it a cost effective, reliable and reliable solution for controlling LED illumination.

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