lh2320-2 Power-One, lh2320-2 Datasheet - Page 10

• Manufacturer Part Number: lh2320-2
• Description: H Series Data Sheet 70 Watt Ac-dc Converters
• Manufacturer: Power-One

R Output Voltage Adjustment
As a standard feature, single-output models offer an
adjustable output voltage identified by letter R in the type
designation.
The output voltage V
voltage (V
adjustment range is approximative 0 – 110% of V
output voltages V
specified in Electrical Input Data increases proportionally to
V
Fig. 13
Output voltage adjustment
BCD20019 Rev AB
Table 6a: R
Table 6b: R
o
Note: With open R input, V
/V
Vi+
Vi–
V
V
o nom
o
5.15
5.20
5.25
5.30
5.35
5.40
5.45
5.50
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
o
V
V
[V]
[V]
o nom
o nom
.
V
ext
ref
ext1
2
= 5.1 V
= 5.1 V
) or by an external resistor (R
= 2.5 V
for V
R
200.0
+
R
14.7
30.1
464
215
147
110
ext1
for V
ext2
0.432
0.976
1.65
2.61
3.83
5.76
8.66
90.9
78.7
68.1
61.9
o
o
[k ]
[k ]
> V
> V
o
o
< V
Control
4 k
o nom
®
can either be adjusted by an external
logic
o nom
o nom
o
= V
V
, the minimum input voltage V
V
10.0
11.0
(conditions: V
12.1
12.2
12.3
12.4
12.5
12.6
12.7
12.8
13.0
13.2
o
o
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
(conditions: V
o nom
V
[V]
V
06087a
[V]
o nom
o nom
.
17
14
8
= 12 V
= 12 V
R
Vo+
R
G
R
12.1
20.0
44.2
ext1
ext2
0.806
1.33
2.0
2.87
4.02
5.62
8.06
1780
909
619
464
383
316
274
249
200
169
i nom
[k ]
[k ]
R
R
i nom
ext1
ext 2
ext1
, I
, I
or R
o nom
o nom
+
-
V
V
o nom
10.0
12.0
13.0
14.0
11.0
, rounded up to resistor values E 96, R
15.2
15.4
15.6
15.8
16.0
16.2
16.4
16.5
ext2
o
o
2.0
4.0
6.0
8.0
9.0
, rounded up to resistor values E 96, R
V
V
[V]
[V]
). The
o nom
o nom
Page 10 of 21
. For
V
ext
i min
= 15 V
= 15 V
R
R
16.2
26.1
56.2
11.0
ext1
ext2
1470
0.619
1.47
2.67
4.53
6.04
8.06
750
511
383
332
274
237
226
a) Adjustment by means of an external resistor R
b) Adjustment by means of an external control voltage V
[k ]
[k ]
Depending upon the value of the required output voltage,
the resistor shall be connected:
either: Between the R and G pin to achieve an output
voltage adjustment range of V
or: Between the R pin and Vo+ to achieve an output
voltage range of V
between G and R pin:
The control voltage range is 0 to 2.75 V and allows for
adjustment in the range of V
Caution: To prevent damage, R
47 k .
Note: R inputs of n converters with paralleled outputs may be
paralleled too, but if only one external resistor is used, its
value should be R
Caution: The external control voltage should be in the range
0 to +3 V to prevent the converter from damage.
R
R
V
ext1
V
V
10.0
12.0
14.0
16.0
18.0
20.0
22.0
ext2
24.25
24.50
24.75
25.00
25.25
25.50
25.75
26.00
26.25
26.40
o
o
4.0
6.0
8.0
ext
V
V
[V]
[V]
o nom
o nom
4 k
4 k • ––––––––––––––––––
––––––––
V
= 24 V
o
= 24 V
V
• 2.5 V
R
70 Watt AC-DC Converters
R
o nom
• –––––––––
o
ext1
ext1
12.1
20.0
44.2
ext2
0.806
1.33
2.0
2.87
4.02
5.62
8.06
3160
1620
1100
V
2.5 V • (V
825
715
590
511
453
402
383
/n or R
o nom
ext1
100 to 110% of V
[k ]
[k ]
ext2
V
(V
o
is not fitted )
o
– V
is not fitted )
H Series Data Sheet
ext2
– 2.5 V)
o
o
o
o
ext2
/n respectively.
V
V
/V
12.0
20.0
24.0
28.0
32.0
36.0
16.0
40.0
44.0
0 to 110 % of V
48.5
49.0
49.5
50.0
50.5
51.0
51.5
52.0
52.5
52.8
o
o
8.0
o nom
0 to 100% of V
should never be less than
V
[V]
V
[V]
o nom
o nom
www.power-one.com
– 1)
o nom
= 48 V
= 48 V
R
R
12.1
20.0
44.2
ext1
ext2
6810
3480
2370
1780
1470
1270
1100
.
0.806
1.33
2.0
2.87
4.02
5.62
8.06
953
845
806
[k ]
[k ]
ext
o nom
o nom
:
.
.
ext