SP6685ER datasheet(9/16 Pages) SIPEX

Part #	SP6685ER

Description	700mA Buck/Boost Charge Pump LED Driver

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Manufacturer	SIPEX [Sipex Corporation]

Direct Link	http://www.sipex.com

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9

Date: 7/6/06 Rev B

SP6685, 700mA Buck/BoostCharge Pump LED Driver

TYPICAL PERFORMANCE CHARACTERISTICS

Figure 25. Startup 200mA Torch,

V

IN = 3.6V, VOUT = 3.2V

Figure 26. Startup 700mA Flash,

V

IN = 3.6V, VOUT = 3.6V

Ch1 = EN

Ch2 = V

OUT

Ch4 = lin

(0.5A/div)

Ch1 = EN

Ch2 = V

OUT

Ch4 = lin

(0.5A/div)

VIN = 3.6V, Typical Application Circuit, D1 = Luxeon LXCL-PWF1, TA = 25°C unless otherwise noted.

Figure 27. Torch in 1X to Flash in 1X Mode V

IN = 4.2V.

CH1 = FLASH, CH2 = V

OUT, CH3 = VFB, CH4 = IOUT 1A/div.

Figure 28. Torch in 1X to Flash in 2X Mode V

IN = 3.6V.

CH1 = FLASH, CH2 = V

OUT, CH3 = VFB, CH4 = IOUT 1A/div.

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