ISL97634IRT18Z-T

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The ISL97634IRT18Z-T is a high efficiency low voltage input step-up charger PMIC designed for a wide range of LED driver applications. It is designed to accept a wide range of input voltage from 3.3 to 6V and can output up to 18V with extremely high efficiency and a single inductor. The device also includes under-voltage lockout for both the input source and battery, as well as a DC/DC converter that is capable of delivering up to 3A of peak current.

The ISL97634IRT18Z-T integrates an efficient, low noise and high accuracy voltage mode controller with a power MOSFET based DC/DC converter. The voltage mode control ensures a fast transient response of the output voltage to changes in the load current. This provides excellent system performance even at very low loads. The ISL97634IRT18Z-T also integrates dimming circuitry allowing for simple, yet advanced, digital dimming with PWM or analog dimming using an external resistor.

The ISL97634IRT18Z-T is designed to provide a highly efficient and reliable LED driver solution. The device is designed to operate over a wide range of input voltages without impacting efficiency. The integrated under-voltage lockout (UVLO) circuit provides protection against damage due to low voltage conditions, such as those caused by battery discharge. The integrated dimming circuitry allows for advanced LED dimming either with pulse width modulation (PWM) or an external resistor.

The ISL97634IRT18Z-T also has a thermal protection function built in. This ensures the output voltage will be shut down if the junction temperature of the device exceeds the operating temperature range. The thermal protection is designed to provide added protection against damage due to over heating of the device. This ensures that the device can operate reliably and safely over a wide range of conditions.

In summary, the ISL97634IRT18Z-T is an advanced PMIC specifically designed for LED driver applications. It is a low voltage step-up charger PMIC with wide input voltage acceptance range and a very high efficiency. The device can output up to 18V with a single inductor and includes UVLO protection for the input source and battery. It also includes digital dimming circuitry with PWM or analog dimming using an external resistor. The integrated thermal protection ensures the output voltage will be shut down if the junction temperature of the device exceeds the operating temperature range. This helps to ensure that the device can operate reliably and safely over a wide range of conditions.

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