SP6686ER-L-TR Datasheet, PDF (6/13 Pages) Exar Corporation – 400mA Buck/Boost Charge Pump LED Driver

SP6686
400mA Buck/Boost Charge Pump LED Driver
Fig. 10: Ripple 1x Torch 150mA, Ch1=V_IN, Ch2=V_OUT
V_IN=4.2V, C_IN=4.7µF, C_FC=0.47µF,C_OUT=2.2µF
Fig. 11: Ripple 2x Torch 150mA, Ch1=V_IN, Ch2=V_OUT
V_IN=3.0V, C_IN=4.7µF, C_FC=0.47µF,C_OUT=2.2µF
Fig. 12: Output Current vs Supply Voltage
D1=AOT2015HPW-1915 LED, R_SENSE=0.3Ω
R_SET=106kΩ, C_IN=2.2µF, C_FC=0.47µF,C_OUT=1µF
Fig. 13: Output Current vs Supply Voltage
D1=AOT3228HPW0303B LED, R_SENSE=0.3Ω
R_SET=140kΩ, C_IN=2.2µF, C_FC=0.47µF,C_OUT=1µF
Fig. 14: Efficiency vs Supply Voltage
D1=AOT2015HPW-1915 LED, R_SENSE=0.3Ω
R_SET=106kΩ, C_IN=2.2µF, C_FC=0.47µF,C_OUT=1µF
Fig. 15: Efficiency vs Supply Voltage
D1=AOT3228HPW0303B LED, R_SENSE=0.3Ω
R_SET=140kΩ, C_IN=2.2µF, C_FC=0.47µF,C_OUT=1µF
© 2009 Exar Corporation
6/12
Rev. 2.0.0