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參數(shù)資料
| 型號： | SCI7661 |
| 廠商： | 愛普生（中國）有限公司 |
| 元件分類： | DC/DC變換器 |
| 英文描述： | DC-DC Converter |
| 中文描述： | DC - DC轉(zhuǎn)換 |
| 文件頁數(shù)： | 7/9頁 |
| 文件大小： | 113K |
| 代理商： | SCI7661 |
7
SCI7661C
OA
/M
OA
5V
V
=
-5V
V
DD
=0V
V
OUT
=8.2V
C
1
10
μ
F
+
C
2
10
μ
F
+
C
3
10
μ
F
+
1
2
3
4
5
6
7
14
13
12
11
10
9
8
ROSC
1M
D
1
D
2
D
3
Positive Voltage Conversion D1, D2, D3,: Shottky
diodes with small V
F
are recommended.
5V
V
=
-5V
V
OUT2
=
V
DD
=0V
V
OUT1
=-15V
V
OUT1
=-10V
V
OUT2
=13.2V
V
DD
=5V
V
DD
=0V
10
μ
F
+
10
μ
F
+
10
μ
F
10
μ
F
+
1
2
3
4
5
6
7
14
13
12
11
10
9
8
+
+
10
μ
F
+
1M
Negative Voltage Convertion +Positive Voltage Conversion
1
2
3
4
5
6
7
14
13
12
11
10
9
8
10
μ
F
+
R
1
R
RV
R
P
R
T
V
reg
V
DD
Example of Change of Temperature Gradient
Plastic DIP-14pin
Unit: mm
(inch)
14
8
1
7
max
(
19.7
max
)
19
±
0.1
(
0.748
±
0.003
)
6
±
0
(
0
±
0
)
(
01.5
)
0.46
(
0.018
)
–0.003
0.1
(
)
0
°
15
°
0.3
(
)
0.25
(
0.01
)
–0
–0.01
0
±
0
(
0
)
+
–
3
m
(
0
m
)
4
±
0
(
0
)
+
–
I
PACKAGE DIMENSIONS
G
Positive Voltage Conversion
The input voltage can be doubled or tripled toward the positive
side. (In the doubler configuration, capacitor C
2
and diode D
3
are disconnected and the diode D
3
shorted at the both ends.)
In this case, however, the output voltage decrease by V
F
(forward
voltage)
For example V
DD
=0V, V
IN
=–5V and V
F
=0.6V, then V
OUT
=10V–
3
×
0.6V=8.2 V (if doubled, 5V–2
×
0.6V=3.8V)
G
Negative Voltage Conversion + Positive
Voltage Conversion
This circuit produces outputs of –15V and +8.2V from
the –5V input. Note that this configuration causes
higher output impedance than in a single function
(negative or positive voltage converter).
G
Changing the Temperature Gradient through Use of External
Temperature Sensor (Thermistor)
The SCI7661C/M has a temperature gradient selector circuit in its
regulator. It selects any one of the three gradients: –0.1% /
°
C, –0.4% /
°
C and –0.6% /
°
C. It is necessary that the temperature gradient can be
changed to any other value by connecting a thermistor in series to the
output voltage control resistor R
RV
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SCI7661C | DC-DC Converter |
| SCI7661M | DC-DC Converter |
| SCI7720Y | Low Operating Current、Adjustment-Free Voltage Detector(小電流可調(diào)電壓檢測器) |
| SCI7810Y | Fixed Type Positive Output Voltage Regulator(固定正電壓輸出穩(wěn)壓器) |
| SCI7910Y | Fixed Type Negative Output Voltage Regulator(固定負(fù)電壓輸出穩(wěn)壓器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SCI7661C | 制造商:EPSON 制造商全稱:EPSON 功能描述:DC-DC Converter |
| SCI7661M | 制造商:EPSON 制造商全稱:EPSON 功能描述:DC-DC Converter |
| SCI7661M0A | 制造商:Epson Electronics America Inc 功能描述:SWITCHED CAPACITOR REGULATOR, PDSO14 |
| SCI7700Y | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS VOLTAGE DETECTOR |
| SCI7700YAA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS VOLTAGE DETECTOR |
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