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參數資料
| 型號： | 70IMX7-1212-8XC |
| 元件分類： | 電源模塊 |
| 英文描述： | 2-OUTPUT 7 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數： | 11/13頁 |
| 文件大小： | 274K |
| 代理商： | 70IMX7-1212-8XC |
Rugged Environment
DC-DC Converters <40 W
IMX 7-Family
Edition 2/96 - Melcher AG
6 - 23
MELCHER
The Power Partners.
6.1
Option D
Single output units can be provided with a Out OK function.
The D-output is an open collector transistor output refer-
enced to Vo– and indicates that the output voltage is above
approximately 90 % of the specified nominal output voltage.
It can for example be used for remote signalling or to pre-
vent a connected system from starting up at a low output
voltage. The current
ID through the NPN transistor should
not exceed 20 mA. The NPN output is not protected against
external overvoltages.
UD should not exceed 25 V. Option D
excludes option -8.
Fig. 7
Out OK signal with corresponding transistor status
Table 9: Out OK characteristics
Out OK
3.3 V units 5.1 V units Unit
characteristics
Uo
min
max
min
max
UD low
D output conducting
3.0
4.75
V
UD high
D output disabled
2.85
4.5
Uo Hyst
Hysteresis
30 (typical)
mV
tD on delay
Transistor on delay
140
560
140
560
ms
tD off delay
Transistor off delay
100
s
t
Uo [V]
UD low
UD high
Output
voltage
Uo Hyst
tD on delay
Out OK
tr on
tD off delay
Fig. 6
Option D, Out OK
11
14
Vo+
Vo–
D
UD
ID
Rp
10
Output
control
circuit
Option X
A yellow LED is provided indicating that the output voltage
is present.
Option X is available for double output units.
Option M
Surface mount version. See Mechanical Data.
Option M excludes option C.
Note: Precautions should be taken when reflow soldering
the SMD version, option M. Please request the sol-
dering instructions for information about reflow sol-
dering. These instructions should be strictly adhered
to. An inadequate soldering process may perma-
nently damage the converter or degrade its perform-
ance and Melcher will not honour any guarantee/
warranty claims resulting from damage caused by
ignoring the soldering instructions.
Infrared soldering is not permitted.
Option C
The C-pinout allows for integration into designs where e.g.
a second source is a must. With the C-pinout the converter
height is increased by the adapter PCB (see also Mechani-
cal Data).
Option C excludes option M, the inhibit function as well as
the R-function. Double outputs are connected in series.
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