TDK-Lambda CHVM1R5 Series, Инструкция по эксплуатации

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INSTRUCTION MANUAL
CHVM1R5 Series
TDK­Lambda
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■ ON/OFF Control
Output voltage can be turned ON/OFF by closing/opening between the ON/OFF terminal and ­Vin terminal.
Between ON/OFF terminal (5) and ­Vin terminal (2)
(1) Output OFF when opened
(2) Output ON when short­circuited (0 ­ 0.4V, 1mA max.)
As the ON/OFF terminal is pulled up to +Vin inside the power supply, pay attention to the voltage of elements
(photocoupler, transistor, etc.) to switch the ON/OFF terminal.
Short­circuit when ON/OFF is not controlled.
Ensure that there is no chattering to the ON/OFF terminal which affects output voltage. Output residual voltage is
0.5% or less when output is OFF under ON/OFF control (at the rated input­output).
■ Over current protection
The CHVM series has a built­in over current protection circuit against overload and load short­circuit. The circuit
reduces output voltage in case of overload or load short­circuit and automatically returns the output to normal
when the cause is eliminated.
The overcurrent protection circuit shows a drooping characteristic. Ensure that the load to be used is at least with
the minimum resistance specified for each series.
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Isolated type
-Vin
ON/OFF
(5)
(2)
Non­isolated type
-Vin
ON/OFF
(5)
(2)
100
80
60
40
20
0
0
Output Current (lo) 100
％
100% output
50% output
O
u
tp
u
t
vo
lta
g
e
s
e
tti
ng
v
a
lu
e
(
%
)
CHVM series
over current protection circuit
characteristic