參數(shù)資料
型號(hào)： FS2660-7EPDD
廠商： POWER-ONE INC
元件分類： 電源模塊
英文描述： 2-OUTPUT DC-DC REG PWR SUPPLY MODULE
封裝： HEAT SINK, METAL, CASE S02, MODULE
文件頁(yè)數(shù)： 5/33頁(yè)
文件大小： 438K
代理商： FS2660-7EPDD
S Series Data Sheet
100 Watt AC-DC and DC-DC Converters
APR 26, 2006 revised to SEP 25, 2006
Page 13 of 33
www.power-one.com
Programmable Output Voltage (R-Function)
As a standard feature, the converters offer an adjustable output
voltage, identified by letter R in the type designation. The control
input R (pin 16) accepts either a control voltage Vext or a
resistor Rext to adjust the desired output voltage. When not
connected, the control input automatically sets the output
voltage to Vo nom.
a) Adjustment by means of an external control voltage Vext
between pin 16 (R) and pin 14:
The control voltage range is 0 - 2.75 VDC and allows an
output voltage adjustment in the range of approximately
0 - 110% Vo nom.
Vo
Vext = –––––– 2.5 V (approximate formula)
Vo nom
b) Adjustment by means of an external resistor:
Depending upon the value of the required output voltage the
resistor shall be connected
Either: Between pin 16 and pin 14 (Vo < Vo nom) to achieve
an output voltage adjustment range of approximately
0 - 100% Vo nom
or: Between pin 16 and pin 12 (Vo > Vo nom) to achieve an
output voltage adjustment range of approximately 100 - 110%
Vo nom.
Warning:
– Vext shall never exceed 2.75 VDC.
– The value of R'ext shall never be less than the lowest value
as indicated in table R'ext for (Vo > Vo nom)
Notes:
– The R-Function excludes option P (output voltage adjustment by
potentiometer).
– If the output voltages are increased above Vo nom via R-input
control, option P setting, remote sensing or option T, the output
current(s) should be reduced accordingly so that Po nom is not
exceeded.
– With double-output models the second output follows the value of
the controlled main output.
– In case of parallel connection the output voltages should be
individually set within a tolerance of 1 - 2%.
Fig. 16
Output voltage control for single-output models AS - LS1000.
R
Vo1+
Vo1–
S–
Vext
Vi+
Vi–
Rext
R'ext
14
16
14
+
S+
Vo1+
Vo1–
S–
Vi+
Vi–
R
12
05074_050905
Table 7a: Rext for Vo < Vo nom; approximative values (Vi nom, Io nom, series E 96 resistors); R'ext = not fitted
Vo nom = 5.1 V
Vo nom = 12 V
Vo nom = 15 V
Vo nom = 24 V
Vo [V]
Rext [kΩ
Ω]
Vo [V]
1
Rext [kΩ
Ω]
Vo [V]
1
Rext [kΩ
Ω]
Vo [V]
1
Rext [kΩ
Ω]
0.5
0.432
2
4
0.806
2
4
0.619
4
8
0.806
1.0
0.976
3
6
1.33
4
8
1.47
6
12
1.33
1.5
1.65
4
8
2
6
12
2.67
8
16
2
2.0
2.61
5
10
2.87
8
16
4.53
10
20
2.87
2.5
3.83
6
12
4.02
9
18
6.04
12
24
4.02
3.0
5.76
7
14
5.62
10
20
8.06
14
28
5.62
3.5
8.66
8
16
8.06
11
22
11
16
32
8.06
4.0
14.7
9
18
12.1
12
24
16.2
18
36
12.1
4.5
30.1
10
20
13
26
26.1
20
40
20
5.0
200
11
22
42.2
14
28
56.2
22
44
44.2
1 First column: Vo or Vo1, second column: outputs of double-output models in series connection
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