Epson S1F76980 Technical Manual page 11

V
BUS
Output
guarantee
XOFF
Fig.8.2.2 Block diagram for V
(Note 2) The release time may be specified by external capacitor only for the V
monitoring. The recommended value of the capacitor is approximately 50ms for 6800pF.
Release delay setting time TUDLY [ms] = Set coefficient (7353) × C [µF]
In case of the recommended C=6800[pF], the release delay time is TUDLY=50[ms].
S1F76980 Technical Manual (Rev.1.0)
The power is turned off when the voltage is below the
output guarantee voltage.
R1
R2
+
V
REG
-
R3 V
REF
8. FUNCTIONAL DESCRIPTION
CMP
power voltage monitoring circuit
BUS
Typ.
EPSON
UDET
(Note 2)
CUDLY
-system power voltage
BUS
7