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ST1208 Fiches technique(PDF) 3 Page - Sitronix Technology Co., Ltd. |
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ST1208 Fiches technique(HTML) 3 Page - Sitronix Technology Co., Ltd. |
3 / 12 page ST1208 V1.1 3/12 2004/10/27 ! Pin Description Name Function GND Ground IN Supply voltage input pin (2.7 ~ 5.0 V). Bypass IN to GND with a ceramic capacitor. OUT Charge pump output pin. Bypass to GND with a ceramic capacitor. Connect to the anodes of all the LEDs. OUT is high impedance during shutdown. SET Variable output current pin by changing the resistant value. Connect a resistor from SET to GND to set the LED bias current. ISET = 0.6V / RSET EN1 EN2 Enable, Dimming Control Input. EN1 and EN2 control shutdown and the LED current. See the Applications Information section for brightness control. LED1 LED cathode connection and charge-pump feedback. The charge pump regulates to the lowest voltage on the LED1. Therefore, LED1 must be used at least. LED2 LED3 LED cathode connection. Connect LEDx to the cathode of one output LED. Let the LEDx floating if this LED is not populated. C1P Charge Pump Capacitor 1 positive connection. C1N Charge Pump Capacitor 1 negative connection. C2P Charge Pump Capacitor 2 positive connection. C2N Charge Pump Capacitor 2 negative connection. ! Pin Assignment Pin ( Pad ) Name Pin ( Pad ) Number TSSOP-16 QFN-16 Bare Chip 1 LED1 C2N LED1 2 LED2 VDD LED2 3 LED3 VDD LED3 4 GND EN1 GND 5 GND EN2 GND 6 C1P SET C1P 7 C2P NC C2P 8 C1N LED1 C1N 9 VOUT LED2 VOUT 10 C2N LED3 C2N 11 IN GND IN 12 IN GND IN 13 EN1 C1P EN1 14 EN2 C1N EN2 15 SET C2P SET 16 NC VOUT NC TSSOP-16 QFN-16 |
Numéro de pièce similaire - ST1208 |
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Description similaire - ST1208 |
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