S1F76620 Series

 

 

 

 

 

 

 

Recommended Operating Conditions

 

 

 

 

 

 

 

 

 

(Ta = –40 to +85°C)

 

 

 

 

 

 

 

Parameter

Symbol

Rating

 

Unit

Remarks

 

 

 

Min.

 

Max.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ROSC = 1MΩ

Step-up start operation

VSTA1

1.5

 

V

C2 10μF CL/C2 1/20

 

 

 

 

 

See note 2.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VSTA2

2.2

 

V

ROSC = 1MΩ

 

 

 

 

 

 

 

Step-up stop voltage

VSTP

 

1.5

V

ROSC = 1MΩ

 

 

 

 

 

 

 

Output load resistance

RL

RLmin

 

Ω

See note 3.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output load current

IO

 

30

mA

 

 

 

 

 

 

 

Oscillation frequency

fOSC

10

 

30

kHz

 

 

 

 

 

 

 

External resistor for

ROSC

680

 

2000

kΩ

oscillation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Step-up capacitor

C1, C2

3.3

 

μF

 

 

 

 

 

 

 

Note 1

All voltages are based on the GND being 0V.

Note 2

The figure below shows the recommended circuit for operation with low voltages (VDD = 1.5 to 2.2V):

 

 

 

 

RL

CL

 

 

 

 

 

1

POFF

VO

8

 

 

2

GND

CAP1+

7

+

 

 

 

 

 

 

3

OSC1

CAP1–

6

C1

+ *D1

C2

 

 

 

 

4

OSC2

VDD

5

 

 

*(DI (VF (IF=1mA) is recommended to be not more than 0.6V.)

Recommended Circuit

Note 3

RLmin varies with input voltage. See Characteristics Graph (15).

S1F76620

Series

 

 

S1F70000 Series Technical Manual

EPSON

1–15