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LM3502 Datasheet(PDF) 10 Page - Texas Instruments |
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LM3502 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 28 page 0.0 EN1 PIN VOLTAGE (V) 0 30 5 10 15 20 25 1.0 2.0 3.0 4.0 5.0 -40 oC 25 oC 125 oC 0.0 2.0 0 5 10 15 20 25 EN2 PIN VOLTAGE (V) 1.0 3.0 4.0 5.0 -40 oC 125 oC 25 oC -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 TEMPERATURE ( oC) 94 98 -40 95 96 97 VIN = 2.5 0.0 CNTRL PIN VOLTAGE (V) 0 30 5 10 15 20 25 1.0 2.0 3.0 4.0 5.0 -40 oC 25 oC 125 oC 2 10 18 26 34 42 50 58 66 74 LED CURRENT (mA) 70 75 80 85 90 95 VIN = 2.7V VIN = 5.5V VIN = 3.3V VIN = 4.2V 2 12 22 32 42 52 62 72 82 LED CURRENT (mA) 60 65 70 75 80 85 90 95 VIN = 2.7V VIN = 5.5V VIN = 3V VIN = 4.2V VIN = 3.3V LM3502 SNVS339B – SEPTEMBER 2005 – REVISED MAY 2013 www.ti.com Typical Performance Characteristics (continued) ( Circuit in Figure 1: L = DO1608C-223 and D = MBRM140T3. Efficiency: η = POUT/PIN = [(VOUT – VFb) * IOUT]/[VIN * IIN]. TA= 25°C, unless otherwise stated.) 6 LED Efficiency 4 LED Efficiency vs vs LED Current LED Current Figure 13. Figure 14. Cntrl Pin Current Maximum Duty Cycle vs vs Cntrl Pin Voltage Temperature Figure 15. Figure 16. En1 Pin Current En2 Pin Current vs vs En1 Pin Voltage En2 Pin Voltage Figure 17. Figure 18. 10 Submit Documentation Feedback Copyright © 2005–2013, Texas Instruments Incorporated Product Folder Links: LM3502 |
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