поискавой системы для электроныых деталей |
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LM27953 датащи(PDF) 2 Page - National Semiconductor (TI) |
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LM27953 датащи(HTML) 2 Page - National Semiconductor (TI) |
2 / 11 page Connection Diagram 18-Bump Thin Micro SMD Package, Large Bump NS Package Number TLA18 20128002 Pin Description Pin #s Pin Names Pin Descriptions C1 V IN Input voltage. Input range: 2.7V to 5.5V. D2 PWR GND Power Ground A3 PWR P OUT Charge pump output. Approximately 1.5xV IN A1, B2, A5, E1 C1+, C1-, C2+, C2- Flying capacitor connections. D6, E5, D4, E3 D1, D2, D3, D4 LED Outputs - Group A C5, B4, C3 SIG P OUT Signal P OUT: Tie pins externally to PWR POUT B6 EN Enable for Charge Pump and LEDs (current outputs). Logic input. High = LEDs ON. Low = LEDs OFF. Pulsing this pin with a PWM signal (100Hz-1kHz) can be used to dim LEDs. A7 SIG GND Signal Ground. Tie pin externally to PWR GND E7 I SET Placing a resistor (R SET) between this pin and GND sets the LED current. LED Current = 100 x (1.25V ÷ R SET). C7 NC No Connect Operational States EN Mode of Operation L Shutdown H Charge Pump Enabled. LEDs ON. Ordering Information Order Information Package Supplied As LM27953TL TLA18 Micro SMD 250 Units, Tape & Reel LM27953TLX 3000 Units, Tape & Reel www.national.com 2 |
Аналогичный номер детали - LM27953 |
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Аналогичное описание - LM27953 |
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