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AOZ1977 - High Voltage LED Driver IC

Description

The AOZ1977 is a high-efficiency LED driver controller for high voltage LED backlighting applications.

It is designed to drive a high-brightness LED light bar in LED TV applications.

The AOZ1977 can support a wide range of input and output voltages.

Features

  • to protect the regulator under fault conditions. A control pin can disable an external switch to disconnect the LEDs current path from the output in PWM dimming or under catastrophic failure conditions. Cycle-by-cycle current protection limits the peak inductor current. Thermal shutdown provides an additional level of protection. Low feedback voltage (500 mV) helps reduce power loss. The AOZ1977 features a sync function to allow for synchronization with an external clock or multiple AOZ1977 devi.

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Full PDF Text Transcription

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AOZ1977 High Voltage LED Driver IC General Description The AOZ1977 is a high-efficiency LED driver controller for high voltage LED backlighting applications. It is designed to drive a high-brightness LED light bar in LED TV applications. The AOZ1977 can support a wide range of input and output voltages. The input bias voltage of the AOZ1977 is from 8 V to 30 V. The AOZ1977 has multiple features to protect the regulator under fault conditions. A control pin can disable an external switch to disconnect the LEDs current path from the output in PWM dimming or under catastrophic failure conditions. Cycle-by-cycle current protection limits the peak inductor current. Thermal shutdown provides an additional level of protection. Low feedback voltage (500 mV) helps reduce power loss.
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