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EV1519DQL-00A Datasheet(PDF) 4 Page - Monolithic Power Systems |
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EV1519DQL-00A Datasheet(HTML) 4 Page - Monolithic Power Systems |
4 / 9 page MP1519L – 1X, 1.5X, 2X CHARGE PUMP 3 WHITE LED DRIVER MP1519L Rev. 1.3 www.MonolithicPower.com 4 7/27/2006 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2006 MPS. All Rights Reserved. TM PIN FUNCTIONS Pin # Name Description 1, 2 NC No Connect. 3, 10 GND Ground. 4 C1A Charge Pump Capacitor #1 Positive Node. Connect the positive side of the #1 charge pump capacitor to C1A. Typical applications require C1 to be 1µF. 5, 13 BATT Battery Power Input. Connect the 2.5V to 5.5V input source between BATT and GND. Bypass BATT to GND with a 1µF or greater capacitor. 6 C2A Charge Pump Capacitor #2 Positive Node. Connect the positive side of the #2 charge pump capacitor to C2A. Typical applications require C2 to be 1µF. 7 C1B Charge Pump Capacitor #1 Negative Node. Connect the negative side of the #1 charge pump capacitor to C1B. 8 LEDC LED Common for the Cathodes. Connect the cathodes of the LEDs to LEDC and to a 4.7µF bypass capacitor. Do not connect to any other ground, supply or pin. Note: Exposed pad on backside is connected to this pin. Do Not Ground. 9 C2B Charge Pump Capacitor #2 Negative Node. Connect the negative side of the #2 charge pump capacitor to C2B. 11 RADJ LED Current Adjust Input. Connect a resistor between RADJ and GND to set the LED current. All of the LEDs regulate at the same current. See Setting the LED Current. 12 EN Enable Input. Drive EN high to turn on the MP1519L, drive EN low to shutdown the MP1519L. To use burst-mode brightness control, drive EN with a PWM signal. See Burst Mode Dimming. 14 LED1 #1 LED Driver. Connect the #1 LED between LED1 and LEDC, with the anode at LED1, and the cathode at LEDC. 15 LED2 #2 LED Driver. Connect the #2 LED between LED2 and LEDC, with the anode at LED2, and the cathode at LEDC. 16 LED3 #3 LED Driver. Connect the #3 LED between LED3 and LEDC, with the anode at LED3, and the cathode at LEDC. |
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