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RT9285B - Diode Embedded White LED Driver

Features

  • The RT9285B is a high frequency asynchronous boost converter with internal diode, which can support 2 to 5 White LEDs for backlighting and OLED power supply. The Internal soft start function can reduce the inrush current. The device operates with 1MHz fixed switching frequency to allow small external components and to simplify possible EMI problems. The device comes with 20V over voltage protection to allow inexpensive and small-output capacitors with lower voltage rating. The LED current is in.

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Datasheet Details

Part number RT9285B
Manufacturer Richtek
File Size 145.07 KB
Description Diode Embedded White LED Driver
Datasheet download datasheet RT9285B Datasheet
Additional preview pages of the RT9285B datasheet.

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Full PDF Text Transcription

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® RT9285B Tiny Package, High Performance, Diode Embedded White LED Driver General Description Features The RT9285B is a high frequency asynchronous boost converter with internal diode, which can support 2 to 5 White LEDs for backlighting and OLED power supply. The Internal soft start function can reduce the inrush current. The device operates with 1MHz fixed switching frequency to allow small external components and to simplify possible EMI problems. The device comes with 20V over voltage protection to allow inexpensive and small-output capacitors with lower voltage rating. The LED current is initially set with the external sense resistor RSET, and the feedback voltage is 250mV.
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