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LM3646 Datasheet(PDF) 8 Page - Texas Instruments |
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LM3646 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 31 page 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 2.5 2.8 3.1 3.4 3.7 4 4.3 4.6 4.9 5.2 5.5 V IN (V) TA = +25ºC TA = -40ºC TA = +85ºC C016 I LED = 1.5A, VLED = 4.5V 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3 3.3 3.6 2.5 2.8 3.1 3.4 3.7 4 4.3 4.6 4.9 5.2 5.5 V IN (V) CL = 1.0A CL = 1.3A CL = 1.6A CL = 1.9A CL = 2.2A CL = 2.5A CL = 2.8A CL = 3.1A C008 I LED = 1.5A, VLED = 4.5V 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 2.5 2.8 3.1 3.4 3.7 4 4.3 4.6 4.9 5.2 5.5 V IN (V) TA = +25ºC TA = -40ºC TA = +85ºC C014 I LED = 1.5A, VLED = 4.5V 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 2.5 2.8 3.1 3.4 3.7 4 4.3 4.6 4.9 5.2 5.5 V IN (V) TA = +25ºC TA = -40ºC TA = +85ºC C015 I LED = 1.5A, VLED = 4.5V 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.5 2.8 3.1 3.4 3.7 4 4.3 4.6 4.9 5.2 5.5 V IN (V) TA = +25ºC TA = -40ºC TA = +85ºC C012 I LED = 1.5A, VLED = 4.5V 1.4 1.6 1.8 2 2.2 2.4 2.6 2.5 2.8 3.1 3.4 3.7 4 4.3 4.6 4.9 5.2 5.5 V IN (V) TA = +25ºC TA = -40ºC TA = +85ºC C013 I LED = 1.5A, VLED = 4.5V LM3646 SNVS962 – DECEMBER 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) Unless otherwise specified: TA= 25°C; VIN = 3.6V; VEN = VIN; CIN = 10 µF; COUT = 10 µF; L = 1 µH; LED1 or LED2 Active Figure 14. Inductor Current vs. Input Voltage, CL=1.9A Figure 15. Inductor Current vs. Input Voltage, CL=2.2A Figure 16. Inductor Current vs. Input Voltage, CL=2.5A Figure 17. Inductor Current vs. Input Voltage, CL=2.8A Figure 18. Inductor Current vs. Input Voltage, CL=3.1A Figure 19. Inductor Current Limit vs. Input Voltage 8 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Product Folder Links: LM3646 |
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