Epson SCI 7660 SERIES, Руководство пользователя

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SCI7660 Series
SCI7000 Series
EPSON
1–3
Technical Manual
DC/DC
Converter
V
DD
= 0V, Ta = –40 to 85˚C unless otherwise noted
Parameter Symbol Condition
Rating
Unit
Min. Typ. Max.
Input voltage V
I
–8.0 — –1.5 V
Output voltage V
O
–16.0 — — V
Multiplier current I
opr
R
L
=
∞
, R
OSC
= 1M
Ω
— 20 30
µ
A
V
I
= –5V
Quiescent current I
Q
R
L
=
∞
, V
I
= –8V — — 2.0
µ
A
Clock frequency f
OSC
R
OSC
= 1M
Ω
, V
I
= –5V 16 20 24 kHz
Output impedance R
O
I
O
= 10mA, V
I
= –5V — 75 100
Ω
Multiplication efficiency Peff I
O
= 5mA, V
I
= –5V 90 95 — %
OSC1 Input leakage current I
LKI
V
I
= –8V — — 2.0
µ
A
3. R
L
min is a function of V
I
.
Electrical Characteristics
Battery
C
L
D1
C2
22
µ
F
C1
10
µ
F
R
L
1M
Ω
+
+
8
7
6
5
1
2
3
4
1.0
5
4
3
2
1
0
1.5 2.0
Input voltage (V)
Minimum load resistance (k
Ω
)
3.0
V
STA2
V
STA1
4.0 5.0 6.0