psa241.5-7ir Power-One, psa241.5-7ir Datasheet - Page 7

• Manufacturer Part Number: psa241.5-7ir
• Description: Psa Series Extended Positive Switching Regulator Rugged
• Manufacturer: Power-One

Fig. 9
Voltage adjustment with U
a) U
R Control for Output Voltage Adjustment
Note: With open R input, U
The output voltage U
ternal voltage (U
The adjustment range is 0…108% of U
mum differential voltage DU
(see: Electrical Input Data) should be maintained. Under-
voltage lock-out = Minimum input voltage.
REV. SEP 23, 2003
Caution: To prevent damage U
U
o
ext
= 0...108% U
+
2.5 V • –––––
U
20 V, nor be negative and R
be less than 47 k .
ext
R
G
Go –
ext
U
o nom
) or with an external resistor (R
U
o nom
U
4000
o
o
ref
can either be adjusted with an ex-
, using U
ext
o
io min
Vo+
between R and Go–
U
U
+
–
ext
o nom
between input and output
o
ext
between R and Go–:
U
06035
. R excludes option P.
should not exceed
o nom
2
o nom
should never
• –––––
2.5 V
U
. The mini-
ext
1
or R
Page 7 of 13
2
).
Positive Switching Regulator (Rugged)
Fig. 10
Voltage adjustment with external resistor R
b) U
c) U
LED Output Voltage Indicator
A yellow output indicator LED shines when the output volt-
age is higher than approx. 3 V.
R
U
R
U
1
o
o
o max
2
o
= 0...100% U
= U
PSA Series Extended Data Sheet
–––––––––––
––––––––––––––––––––––––
––––––––––––––––––––––––––––––––
2.5 V • (R
R
R
4000
4000
U
= U
o nom
2
1
o nom
o nom
2.5 V • (U
...U
R
G
– U
• U
• U
Go –
o max
+ 8%
2
o nom
U
o
o
+ 4000
o
o nom
• (U
U
, using R
4000
ref
o
, using R
– U
o nom
• 2.5 V • R
o nom
) – U
U
– 2.5 V)
o
2
Vo+
1
between R and Vo+:
)
between R and Go–:
+
–
o nom
–––––––––––
R
U
1
2
o nom
+ 4000
06036
• 4000
• R
1
or R
1
2