ISL97694AIRTZ-T

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ISL97694AIRTZ-T is an LED power driver for portable applications. It integrates not just the LED output driver but also the voltage regulator enabling lower power consumption, higher performance and enhanced reliability. This LED driver works in a similar way as other LED drivers, except that its ripple peak-to-peak noise is reduced. It also offers very low quiescent current and power cycle accuracy. ISL97694AIRTZ-T is one of the many products offered by Intersil Corporation.

ISL97694AIRTZ-T is a PMIC (Power Management IC) and LED Driver. It offers integrated power, onboard voltage regulation and can work with both AC and DC power sources. It operates in an open-loop system and includes an ideal diode for inrush current management. It provides user-programmable output current, adjustable up to 5A, and can be adjusted with a selectable soft-start time. As well as lithium ion, ISL97694AIRTZ-T supports NiMH and NiCd batteries. It includes an overvoltage protection feature and can provide power for 12V and 24V systems.

The working principle of ISL97694AIRTZ-T is a little complicated. It comprises a power system, a means of generating the output, adaptive regulation, and an adjustable current. The power system forms the basis of the LED driver and is designed to fit the bill of the supply conditions. It is based on a PWM switch-mode power supply with features such as mains input and battery input. The output is generated by the LED driver and this leads to a certain LED output level. The LED driver has features such as open-circuit and circuit protection, voltage output accuracy, and temperature control that protect the LED from damage caused by overloading, overvoltage, or overheating.

Adaptive regulation is used in ISL97694AIRTZ-T to protect the LED from a short-circuit, overvoltage, and overcurrent. The LED driver includes an on-chip programmable current sense, which switches to the battery input and auto-sets the output current when power line voltage fluctuates. This ensures that the output current does not exceed the normal operating level. The adjustable current allows for compensation for LED LED temperature variations and LED aging.

ISL97694AIRTZ-T is a highly advanced and efficient LED power driver ideal for a range of applications in the automotive, industrial, and mobile markets. It is capable of providing high level output accuracy and voltage regulation, while using a very low quiescent current. It also features an efficient soft-start, overvoltage protection, and programmable output current limit, making it a reliable and effective LED driver solution.

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