Specifications

SCI7654 Series
SCI7000 Series EPSON 2–19
Technical Manual
DC/DC Converter
& Voltage Regulator
ELECTRICAL CHARACTERISTICS
Table 2.3 DC characteristics (1)
Parameter Symbol Characteristics Min. Typ. Max. Unit
N = Boost time if CT0 is selected –22/N –2.4 V
Input power voltage VI
N = Boost time if CT1 is selected –22/N –2.4 V
N = Boost time if CT2 is selected –22/N –2.4 V
N = Boost time if CT3 is selected –22/N –2.4 V
Boost start input power
V
STA
N = Boost time, FC = VDD during
–22/N –2.4 V
voltage no loading
Boost output voltage VO –22 V
Regulator input voltage VRI –22 –2.4 V
Regulator output voltage V
REG
IREG = 0, VRI = –22 V
–2.4 V
R
RV = 1MΩ
Figure 2.3 Potential relationship
Ta = –30°C to +85°C, V
DD = 0 V, VI = –5.0 V
unless otherwise noted
V CC
(+5 V)
GND
(0 V)
V DD
(0 V)
V
I
(–5 V)
5 V
System SCI7654
10 V
Two-time
boosting
Three-time
boosting
Four-time
boosting
15 V
20 V
–10 V
–15 V