sp7685 Exar Corporation, sp7685 Datasheet - Page 7

• Manufacturer Part Number: sp7685
• Description: 1.2a Buck/boost Charge Pump Led Driver
• Manufacturer: Exar Corporation

V
Date: 6/20/06 Rev T
IN
Torch in 1X to Flash in 1X Mode, V
=3.6V, Typical Application Circuit, T
Start Up 200mA Torch
V
Start Up 700mA Flash
V
IN
IN
=3.6V, V
=3.6V, V
OUT
OUT
=3.6V
=3.1V
SP7685, 1.2A Buck/BoostCharge Pump LED Driver
IN
A
=4.2V
= 25°C unless otherwise noted.
EN
I
1A/div
V
V
IN
I
1A/div
V
V
I
1A/div
EN
V
V
EN
OU
FB
OUT
IN
OUT
FB
OUT
FB
7
Torch in 1X to Flash in 2X Mode, V
EN
Flash Mode TimeOut Circuit at 2.6sec.
V
V
IN
Start Up 1000mA Flash
V
=4.2V, I
OUT
IN
=3.6V, V
APPLICATION INFORMATION
OUT
=1A
OUT
=3.8V
V
FB
© 2006 Sipex Corporation
IN
=3.6V
I
1A/div
EN
V
V
OUT
EN
I
1A/div
V
V
IN
OUT
FB
OU
FB