S1F71100 Series

Power Off Function

S1F71100 can control circuit operations according to external signal control. When the POFFX pin is connected to the VSS level, all circuits stop their operations and their powers are turned off. The current consumption at the power off state is less than 1μA. When the power is off, the SWO pin is at the VDD level and turns off the voltage transistor. The voltage at the SSCAP pin

comes to the VSS level, and the output voltage is controlled with the soft start circuit after the power off state is released. In the operating state, set the POFFX pin to the VDD level to operate it. The POFFX pin cannot be operated in a open state. When the power off function is not used, connect the POFFX pin to the VDD pin.

ABSOLUTE MAXIMUM RATINGS

Parameter

Symbol

Applicable Pin

Rated Value

Unit

 

 

 

 

 

Input voltage

VDD

VDD

15.0

V

 

 

 

 

 

Voltage at VO pin

VO

VO

VSS–0.3 to VDD+0.3

V

 

 

 

 

 

Voltage at POFFX pin

POFFX

POFFX

VSS–0.3 to VDD+0.3

V

 

 

 

 

 

Voltage at ERCAP pin

ERCAP

ERCAP

VSS–0.3 to VDD+0.3

V

 

 

 

 

 

Voltage at SSCAP pin

SSCAP

SSCAP

VSS–0.3 to VDD+0.3

V

 

 

 

 

 

Voltage at SWO pin

SWO

SWO

VSS–0.3 to VDD+0.3

V

 

 

 

 

 

Voltage at ISENSE pin

ISENSE

ISENSE

VSS–0.3 to VDD+0.3

V

 

 

 

 

 

Package allowable loss

PD

PD

300

MW

 

 

 

Ta≤25˚C

 

 

 

 

 

 

Operating temperature

Topr

–

–30 to +85

˚C

 

 

 

 

 

Storage temperature

Tstg

–

–55 to +150

˚C

 

 

 

 

 

Soldering temperature and time

Tsol

–

260 · 10

˚C·S

 

 

 

 

 

Note :Any operation under conditions exceeding the above absolute maximum ratings may result in a malfunction or a permanent destruction. When even an item is more than the rating, a temporary normal operation is possible but with remarkably low reliability. So, be sure to keep all items below the ratings.

S1F71100

Series

 

 

S1F70000 Series Technical Manual

EPSON

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