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OCP8178A - White LED Driver

This page provides the datasheet information for the OCP8178A, a member of the OCP8178A-ORIENT White LED Driver family.

Description

With a 40-V rated integrated switch FET, the OCP8178A is a boost converter that drives LEDs in series.

The boost converter runs at 600kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allows for the use of small external components.

Features

  • integrated open LED protection that disables the OCP8178A to prevent the output voltage from exceeding the IC's abs.

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Datasheet preview – OCP8178A

Datasheet Details

Part number OCP8178A
Manufacturer ORIENT-CHIP
File Size 195.19 KB
Description White LED Driver
Datasheet download datasheet OCP8178A Datasheet
Additional preview pages of the OCP8178A datasheet.

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Full PDF Text Transcription

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WWW.ORIENT-CHIP.COM OCP8178A White LED Driver With Digital and PWM Brightness Control ◼ General Description With a 40-V rated integrated switch FET, the OCP8178A is a boost converter that drives LEDs in series. The boost converter runs at 600kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allows for the use of small external components. The default white LED current is set with the external sensor resistor Rset, and the feedback voltage is regulated to 200mV, as shown in the typical application. During the operation, A pulse width modulation (PWM) signal can be applied to the CTRL pin through which the duty cycle determines the feedback reference voltage.
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