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参数资料
| 型号： | PSL126-7LIPCD1A |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封装： | METAL, CASE L04, MODULE |
| 文件页数： | 5/16页 |
| 文件大小： | 255K |
| 代理商： | PSL126-7LIPCD1A |
PSL Series Extended Data Sheet
Positive Switching Regulators (Rugged)
REV. APR 26, 2004
Page 13 of 16
Description of Options
-9
Extended Temperature Range
The operational ambient temperature range is extended to
TA = –40 to 71°C. (TC = –40 to 95°C, TS = –55 to 100°C.)
P
Potentiometer
Option P excludes R function. The output voltage
Vo can be
adjusted with a screwdriver in the range from 0.92 - 1.08 of
the nominal output voltage
Vo nom.
However, the minimum differential voltage
DVio min between
input and output voltages as specified in
Electrical Input
Data should be maintained.
A
Test sockets
Test sockets (pin = 2 mm) for measuring the output volt-
age are located at the front panel of the module. The output
voltage is measured internally directly at the connector
pins.
L
Input Filter
Option L is recommended to reduce superimposed inter-
ference voltages and to prevent oscillations, if input lines
exceed approx. 5 m in total length. The fundamental wave
(approx. 120 kHz) of the reduced interference voltage be-
tween Vi+ and Gi– has, with an input line inductance of
5 H, a maximum magnitude of 4 mVrms.
The input impedance of the switching regulator at 120 kHz
is about 3.5 . The harmonics are small in comparison with
the fundamental wave. See also:
Electrical Input Data: RFI.
With option L, the maximum permissible additionally super-
imposed ripple
ui of the input voltage (rectifier mode) at a
specified input frequency
f i has the following values:
ui max = 10 Vpp at 100 Hz or Vpp = 1000 Hz/f i 1V
Table 10: Inhibit characteristics
Characteristics
Conditions
min
typ
max
Unit
Vinh
Inhibit input voltage to keep
Vo = on
Vi min - Vi max
–50
+0.8
VDC
regulator output voltage -
Vo = off
TC min - TC max
+2.4
+50
t r
Switch-on time after inhibit command
Vi = Vi nom
5ms
t f
Switch-off time after inhibit command
RL = Vo nom /Io nom
10
Ii inh
Input current when inhibited
Vi = Vi nom
10
mA
0
t
0
Inhibit
1
0.1
1
Vo/Vo nom
tr
tf
06001
Fig. 13
Output response as a function of inhibit signal
i
Inhibit for Remote On and Off
Note: With open i input, output is enabled (
Vo = on)
Inhibit excludes R control function.
The inhibit input allows the switching regulator output to be
disabled via a control signal. In systems with several units,
this feature can be used, for example, to control the activa-
tion sequence of the regulators by a logic signal (TTL, C-
MOS, etc.). An output voltage overshoot will not occur when
switching on or off.
Vi+
Gi–
Go–
i
Vo+
Iinh
Vinh
06009
Fig. 12
Definition of Iinh and Vinh
Fig. 11
Typical inhibit current Iinh versus inhibit voltage Vinh
4
2
0
–50 –40
20
40
–30
0
–20 –10
10
30
50
5
3
1
I
inh [mA]
V
inh [V]
V
o on
V
o off
V
inh
=
0.8
V
inh
=
2.4
V
06034
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