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O
UTPUT
V
OLTAGE
A
DJUSTMENT
(1500 S
ERIES
D
UAL
O
UTPUT
)
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The converter’s output voltage may be trimmed to
±10%
of the nominal output voltage.
TRIM UP
Trim output voltage up by connecting an external resistor between Pins 5 and 6. Use the following equation.
Reference Table 1 for variable A.
Radj-up =
Example:
A
Δ
%
- 24 (kΩ)
If we want to trim 5% up for 12V output units,
where A = 2.23,
Δ
% = 0.05
Radj-up =
2.23
0.05
- 24 kΩ
=
20.6 kΩ
CASE A
Table 1.
Output Voltage
A
5V
12V
15V
1.87
2.23
2.28
TRIM DOWN
Trim output voltage down by connecting an external resistor between Pins 5 and 8. Use the following
equation. Reference Table 2 for variable C and D.
Radj-down =
Example:
C
Δ
%
- D (kΩ)
If we want to trim 5% down for 5V output units,
where C = 5.63, D = 31.5,
Δ
% = 0.05
Radj-down =
5.63
0.05
- 31.5 kΩ
=
81.1 kΩ
CASE A
Table 2.
Output Voltage
C
D
5V
12V
15V
5.63
19.3
25.1
31.5
45.5
51.4
>> B-119
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