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SP7686 Datasheet(PDF) 8 Page - Sipex Corporation |
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SP7686 Datasheet(HTML) 8 Page - Sipex Corporation |
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8 / 16 page  Jul16-07 RevP SP7686: 500mA LED Driver 2007 Sipex Corporation - 8 - TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.6V, Typical Application Circuit, D1 = Luxeon LXCL-PWF3, TA = 25˚C unless otherwise noted. Figure 5. SP7686 Startup with 3 CTRL Pulses Figure 6. SP7686 Startup with 32 CTRL Pulses Figure 7. SP7686 Turn-off time into SHDN Figure 8. SP7686 Vout Shorted to GND, VIN = 5.5V 30 40 50 60 70 80 90 100 2.7 3.0 3.3 3.6 3.9 4.2 Vin (V) Flash 450mA Torch 150mA Figure 9. SP7686 LED Open, VIN = 4.2V Figure 10. SP7686A Efficiency CTRL VOUT VFB VIN=4.2V IIN : 0.5A/div CTRL VOUT VIN=4.2V VFB IIN : 0.5A/div CTRL VOUT VFB IIN : 0.5A/div CTRL VOUT VFB IIN : 0.5A/div IIN : 0.5A/div VFB VOUT CTRL |
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