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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.<br />The RT9379 is available in a WQFN-16L 2x3 package. Small 1μF capacitors can be used for fly capacitors. It provides the best backlighting solution with high efficiency and smallest board space for portable application.</p>
RT9379 Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>85% Average Efficiency Over Li-ion Battery Discharge </li><li>Support Up to 6 White LEDs </li><li>Support Up to 25mA/Per Channel </li><li>PWM Brightness Control </li><li>60mV Current Source Dropout </li><li>1% LED Current Accuracy </li><li>0.7% LED Current Matching </li><li>Automatic x1/x1.5/x2 Charge Pump Mode Transition </li><li>Low Input Noise and EMI </li><li>Over Voltage Protection </li><li>Power On/Mode Transition Inrush Protection </li><li>1MHz Switching Frequency </li><li>0.4μA Low Shutdown Current </li><li>RoHS Compliant and Halogen Free </li></ul></div>
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RT9379 Ordering Information
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RT9379
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<div class="spec-list"><ul class="lv1"><li>Camera Phone, Smart Phone </li><li>White LED Backlighting </li></ul></div>
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