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LM3644 Datasheet(PDF) 7 Page - Texas Instruments |
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LM3644 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 41 page 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 D003 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 D004 BRC = 71 BRC = 79 BRC = 87 BRC = 95 BRC = 103 BRC = 111 BRC = 119 BRC = 127 LED1 Code (dec#) 0 16 32 48 64 80 96 112 128 0 0.04 0.08 0.12 0.16 0.2 0.24 0.28 0.32 0.36 0.4 D040 TA = -40°C TA = +25°C TA = +85°C LED2 Code (dec#) 0 16 32 48 64 80 96 112 128 0 0.04 0.08 0.12 0.16 0.2 0.24 0.28 0.32 0.36 0.4 D040 D041 TA = -40°C TA = +25°C TA = +85°C LED1 Code (dec#) 0 16 32 48 64 80 96 112 128 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 D015 TA = -40°C TA = +25°C TA = +85°C LED2 Code (dec#) 0 16 32 48 64 80 96 112 128 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 D016 TA = -40°C TA = +25°C TA = +85°C LM3644, LM3644TT www.ti.com SNVSA52D – AUGUST 2014 – REVISED SEPTEMBER 2015 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 4. LED1 Torch Current vs Brightness Code Figure 5. LED2 Torch Current vs Brightness Code LM3644TT LM3644TT Figure 6. LED1 Torch Current vs Brightness Code Figure 7. LED2 Torch Current vs Brightness Code Figure 8. LED1 Current vs Input Voltage Figure 9. LED1 Current vs Input Voltage Copyright © 2014–2015, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: LM3644 LM3644TT |
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