поискавой системы для электроныых деталей |
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LM3639A датащи(PDF) 10 Page - Texas Instruments |
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LM3639A датащи(HTML) 10 Page - Texas Instruments |
10 / 28 page 0.01 0.1 1 10 100 1.E+0 1.E+1 1.E+2 1.E+3 1.E+4 1.E+5 1.E+6 f PWM (Hz) C033 Duty-Cycle = 50% I LED = 19mA 50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 100% 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 V IN (V) 500 kHz. 1 MHz. C022 I LED = 19mA 2x7 LEDs 50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 100% 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 V IN (V) 500 kHz. 1 MHz. C022 I LED = 19mA 2x5 LEDs 50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 100% 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 V IN (V) 500 kHz. 1 MHz. C022 I LED = 19mA 2x6 LEDs 50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 100% 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 V IN (V) 500 kHz. C022 I LED = 19mA 10 LEDs 50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 100% 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 V IN (V) 500 kHz. 1 MHz. C022 I LED = 19mA 2x4 LEDs LM3639A SNVS964 – MARCH 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) Unless otherwise specified: TA = 25°C; VIN = 3.6V; VEN = VIN; CIN= 10 μF, COUTF= 10 μF, COUTB = 1 μF (50V 0805 case size); LF = 1 μH; LB = 22 μH. Figure 27. Backlight Efficiency vs Input Voltage Figure 28. Backlight Efficiency vs Input Voltage Single String - 10 LEDs Dual String - 2x4 LEDs Figure 29. Backlight Efficiency vs Input Voltage Figure 30. Backlight Efficiency vs Input Voltage Dual String - 2x5 LEDs Dual String - 2x6 LEDs Figure 31. Backlight Efficiency vs Input Voltage Figure 32. PWM Input Filter Response Dual String - 2x7 LEDs 10 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Product Folder Links: LM3639A |
Аналогичный номер детали - LM3639A |
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Аналогичное описание - LM3639A |
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