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RT9379 - 6 Channels 150mA x1/x1.5/x2 Charge Pump

Description

The RT9379 is a 6 channel WLED driver with auto mode selection of x1, x1.5 and x2 mode with low dropout voltage in current sources.

The RT9379 can power up to 6 white LEDs with regulated constant current for uniform intensity.

Each channel (LED1 to LED6) can support up to 25mA.

Features

  • z 85% Average Efficiency Over Li-ion Battery Discharge z Support Up to 6 White LEDs z Support Up to 25mA/Per Channel z PWM Brightness Control z 60mV Current Source Dropout z 1% LED Current Accuracy z 0.7% LED Current Matching z Automatic x1/x1.5/x2 Charge Pump Mode Transition z Low Input Noise and EMI z Over Voltage Protection z Power On/Mode Transition Inrush Protection z 1MHz Switching Frequency z 0.4uA Low Shutdown Current z RoHS Compliant and Halogen Free.

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Datasheet Details

Part number RT9379
Manufacturer Richtek
File Size 182.50 KB
Description 6 Channels 150mA x1/x1.5/x2 Charge Pump
Datasheet download datasheet RT9379 Datasheet

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Full PDF Text Transcription

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® RT9379 6 Channels 150mA x1/x1.5/x2 Charge Pump White LED Driver General Description The RT9379 is a 6 channel WLED driver with auto mode selection of x1, x1.5 and x2 mode with low dropout voltage in current sources. The RT9379 can power up to 6 white LEDs with regulated constant current for uniform intensity. Each channel (LED1 to LED6) can support up to 25mA. The part maintains highest efficiency by utilizing x1/x1.5/ x2 fractional charge pump and low dropout current regulators. For the brightness control, user can easily use a PWM signal generated from GPIO to control the brightness of WLEDs. The RT9379 is available in a WQFN-16L 2x3 package. Small 1μF capacitors can be used for fly capacitors.
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