SP7685EB datasheet(2/4 Pages) SIPEX

2 / 4 page

Rev 02/12/06

SP7685EB Evaluation Board Manual

Page 2 of 4

SP7685 Output Current

100

200

300

400

500

600

700

800

900

1000

1100

3.0

3.2

3.4

3.6

3.8

4.0

4.2

Input Voltage (V)

1000mA,Vf=3.31V PWF1

700mA,Vf=3.24V PWF1

700mA,Vf=3.92V AOT

200mA,Torch Mode

SP7685 Output Efficiency

100

3.0

3.2

3.4

3.6

3.8

4.0

4.2

Input Voltage (V)

1000mA,Vf=3.31V PWF1

700mA,Vf=3.18V PWF1

700mA,Vf=3.92V AOT

200mA,Torch

Figure 1.Output Current

Figure 2. Output Efficiency

Figure 3. Startup 200mA Torch, W/PWF1

Figure 4. Startup 700mA Flash, W/PWF1

Ch1 = Vin (AC)

100mV/div

Ch2 = Vout (AC)

50mV/div

Figure 5. Ripple 200mA Torch, Vin=3.6V, W/PWF1

Figure 6. Ripple 700mA Flash, Vin=4.2V, W/PWF1

Vin=3.6V FlashMode 2X

Vout

VFB

Iin

1A/div

Vin=3.1V Torch Mode 2X

Vout

VFB

Iin

1A/div

Vout

VFB

Iin

1A/div

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