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SP7121 数据表(PDF) 3 Page - Sipex Corporation |
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SP7121 数据表(HTML) 3 Page - Sipex Corporation |
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3 / 11 page ![]() Sept 11 - 07 Rev E SP7121 Low Dropout LED Driver © 2007 Sipex Corporation Page 3 PIN ASSIGNMENTS Pin Name SP7121 Pin Description Vcc 1 Power input pin. Bypass Vcc to GND with 1nF capacitor as close to VIN as possible GND 2 Ground pin EN 3 Enable pin. Device is active if EN is logic HIGH ISET 4 Connect external resistor to set LED current LED2 5 Connect anode of LED2 LED1 6 Connect anode of LED1 BLOCK DIAGRAM |
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