ISL97635IRZ-T

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PMIC - LED Drivers, is a type of device used to control light emission of LEDs, or "Light Emitting Diodes", which are diodes that emit light when a current is passed through them, having two states, off and on. PMIC – LED Drivers are used to regulate the amount of current applied to a particular LED, as well as to control other functions such as blinking, modulation, and dimming. The ISL97635IRZ-T is a single-channel PMIC – LED Driver designed to control the light emission of a single LED. It provides voltage-mode control for constant- current output, adjustable dimming, and wide input voltage range.

The ISL97635IRZ-T is a great choice for automotive and industrial applications that need high performance, reliable light control, and efficient power management. The device can be used to power a variety of LED applications, including vehicle brake lights, fog lamps, headlights, and other LED-based lighting fixtures. Additionally, the ISL97635IRZ-T can be used in industrial settings to control LED-based numerical displays or signalling lights.

The ISL97635IRZ-T is an ideal solution for automotive and industrial applications due to its high current accuracy and wide input voltage range. It incorporates a step-up DC/DC converter, current sensor, power MOSFET and control logic all housed in a small 3.6mm x 3.6mm 14-pin package. The voltage-mode control output of the device provides a constant current without the need for external compensation, giving the device great accuracy and flexibility. The adjustable dimming feature allows for the brightness level of the LED to be easily adjusted for various lighting effects.

Furthermore, the ISL97635IRZ-T offers superior protection due to its short-circuit protection and thermal protection with 70°C hysteresis. The device also incorporates a programmable ON/OFF delay function and a fault flag, indicating the presence of a fault condition to the control unit.

The working principle of the ISL97635IRZ-T is based on its voltage mode control scheme. The device compares the on-board current sensing voltage, reference voltage, and a dimming control signal to generate a control signal. The control signal then adjusts the output voltage of the voltage-mode converter to provide the desired output current to the LED. The output current can be configured by setting the reference voltage to the desired maximum output current. The output current will then be limited to the selected reference voltage, providing accurate and consistent current for the LED load.

In summary, the ISL97635IRZ-T is a single-channel PMIC – LED driver designed for automotive and industrial applications. It features voltage-mode control for constant current output, adjustable dimming, and superior protection features, allowing for precision and reliable LED control. Additionally, it offers excellent accuracy and flexibility due to its efficient voltage mode control and programmable features. The ISL97635IRZ-T is an ideal solution for automotive and industrial applications requiring efficient and reliable LED lighting solutions.

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