SP6685EB View Datasheet(PDF) - Exar Corporation

Part Name

Description

MFG CO.

SP6685EB

700mA Buck/Boost Charge Pump LED Driver

Exar Corporation 

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SP6685

700mA Buck/Boost Charge Pump LED Driver

Fig. 28: Startup 200mA Torch

VIN = 3.6V, VOUT = 3.2V

Fig. 29: Startup 700mA Flash

VIN = 3.6V, VOUT = 3.6V

Fig. 30: Torch in 1X to Flash in 1X Mode, VIN = 4.2V

CH1 = FLASH, CH2 = VOUT, CH3 = VFB, CH4 = IOUT 1A/div

Fig. 31: Torch in 1X to Flash in 2X Mode, VIN = 3.6V

CH1 = FLASH, CH2 = VOUT, CH3 = VFB, CH4 = IOUT 1A/div

Fig. 32: Efficiency

See fig.34 for Application Circuit

© 2009 Exar Corporation

9/14

Fig. 33: Output Current

See fig.34 for Application Circuit

Rev. 2.0.0

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