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LM3644TTYFFR Scheda tecnica(PDF) 8 Page - Texas Instruments |
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LM3644TTYFFR Scheda tecnica(HTML) 8 Page - Texas Instruments |
8 / 41 page VIN (V) 2.5 3 3.5 4 4.5 5 5.5 0.93 0.94 0.95 0.96 0.97 0.98 0.99 1 1.01 1.02 1.03 1.04 1.05 1.06 1.07 D023 TA = -40GC TA = +25GC TA = +85GC VIN (V) 2.5 3 3.5 4 4.5 5 5.5 0.68 0.69 0.7 0.71 0.72 0.73 0.74 0.75 0.76 0.77 0.78 D024 LED1, TA = -40GC LED2, TA = -40GC LED1, TA = +25GC LED2, TA = +25GC LED1, TA = +85GC LED2, TA = +85GC VIN (V) 2.5 3 3.5 4 4.5 5 5.5 1.4 1.42 1.44 1.46 1.48 1.5 1.52 1.54 1.56 1.58 1.6 1.62 D022 TA = -40GC TA = +25GC TA = +85GC VIN (V) 2.5 3 3.5 4 4.5 5 5.5 1.4 1.42 1.44 1.46 1.48 1.5 1.52 1.54 1.56 1.58 1.6 D021 TA = -40GC TA = +25GC TA = +85GC VIN (V) 2.5 3 3.5 4 4.5 5 5.5 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 D005 BRC = 0 BRC = 7 BRC = 15 BRC = 23 BRC = 31 BRC = 39 BRC = 47 BRC = 55 BRC = 63 VIN (V) 2.5 3 3.5 4 4.5 5 5.5 0.7 0.8 0.9 1 1.1 1.2 1.3 1.4 1.5 1.6 D006 BRC = 71 BRC = 79 BRC = 87 BRC = 95 BRC = 103 BRC = 111 BRC = 119 BRC = 127 LM3644, LM3644TT SNVSA52D – AUGUST 2014 – REVISED SEPTEMBER 2015 www.ti.com Typical Characteristics (continued) Ambient temperature is 25°C, input voltage is 3.6 V, HWEN = VIN, CIN = COUT = 2 × 10 µF and L = 1 µH, unless otherwise noted . Figure 10. LED2 Current vs Input Voltage Figure 11. LED2 Current vs Input Voltage ILED = 1.5 A ƒSW = 2 MHz Flash ILED = 1.5 A ƒSW = 4 MHz Flash Figure 12. LED1/2 Current vs Input Voltage Figure 13. LED1/2 Current vs Input Voltage ILED = 1 A ƒSW = 2 MHz Flash ILED = 730 mA ƒSW = 2 MHz Flash Figure 14. LED1/2 Current vs Input Voltage Figure 15. LED1 and LED2 Current vs Input Voltage 8 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: LM3644 LM3644TT |
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