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S1F76640 Series
2–48 EPSON S1F70000 Series
Technical Manual
Electrical Characteristics
Unless otherwise specified, Ta=–40˚C to +85˚C
GND=0V, V
DD=5V
Parameter Symbol
Specification Value
Unit Conditions
Measurement
Min. Typ. Max. Circuit
Input supply voltage VDD 1.8 — 5.5 V — —
Output voltage VO — — 22 V — —
VREG VRV —22V
R=∞, RRV=1MΩ, VO=22V
2
Stabilization circuit VO
VRV+2.1
—22V — —
operating voltage
Step-up circuit current
IOPR1 — 60 100 µARL=∞, ROSC=1MΩ 1
consumption (V
DD
system)
Step-up circuit current
IOPR2 —1225µARL=∞, ROSC=1MΩ, 2
consumption (VRI system)
VO=20V
Static current I Q — — 2 µA TC2=TC1=VO,RI=∞ 1
Oscillation frequency
fOSC 16 20 24 kHz ROSC=1MΩ 1
Output impedance RO — 250 350 Ω IO=10mA 1
Step-up power conversion
Peff 90 95 — % IO=5mA 1
efficiency (Note 2)
Stabilized output ∆VREG — 0.2 — %/V
10V<VO<20V,VREG=10V
2
voltage fluctuation ∆V
O⋅VREG RL=∞, Ta=25˚C
Stabilized output load
∆VREG — 5.0 — Ω VO=20V,VREG=15V 2
fluctuation (Note 3) ∆I
O Ta=25˚C,0<IO<10mA
TC1=V
O,TC2=GND
Stabilized output saturation
RSAT —12—Ω
RSAT=
∆
(VO-VREG)/
∆
IO
2
resistance (Note 4) 0<I
O<10mA,RV=VO
Ta=25˚C
Reference voltage VRV0 2.20 3.00 3.80 V
TC2=GND,TC1=VO,Ta=25˚C
2
VRV1 2.30 2.80 3.30 V TC2=TC1=GND,Ta=25˚C
VRV2 1.70 2.00 2.30 V
TC2=VO,TC1=GND,Ta=25˚C
Temperature gradient
CT0 –0.45 –0.27 –0.10 %/˚C VDD=5V,VO=20V 2
CT1 –0.60 –0.42 –0.25 %/˚C (Note 5)
CT2 –0.70 –0.55 –0.40 %/˚C
Input leak current ILKI ——2µA
P
OFF
,TC1,TC2,OSC1,RV pins
3