S1F76980 Epson Electronics America, Inc., S1F76980 Datasheet - Page 6

• Manufacturer Part Number: S1F76980
• Description: Power Supply Input Control Ic
• Manufacturer: Epson Electronics America, Inc.

4. BLOCK DIAGRAM
4. BLOCK DIAGRAM
2
V
V
V
BAT
BUS
CC
V
BSEL
V
IQ
CUDLY
ONOFSW
CSFT
V
PSW
CBDLY
TM3
V
V
CC
BUS
BAT
DD
SS
Power
switching circuit
Reference
voltage
generator
Power
voltage
monitoring
circuit
(V
Power
voltage
monitoring
circuit
(V
Power
voltage
monitoring
circuit
(V
Power-on
reset
circuit
Fig.4.1 Block diagram
CC
BUS
BAT
)
)
)
EPSON
Switching
control
circuit
S1F76980 Technical Manual (Rev.1.0)
S1F76980
CDET
UDET
BDET
V
OC1
OC2
OU1
OU2
OB1
OB2
OUT
FB