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S48SA2R503PTFB Datasheet(PDF) 8 Page - Delta Electronics, Inc.

Part # S48SA2R503PTFB
Description  Delphi Series S48SA, 33W Family DC/DC Power Modules: 48V in, 1.2V/12A out
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Manufacturer  DELTA [Delta Electronics, Inc.]
Direct Link  http://www.deltaww.com
Logo DELTA - Delta Electronics, Inc.

S48SA2R503PTFB Datasheet(HTML) 8 Page - Delta Electronics, Inc.

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DS_S48SA1R212_05122006
percentage output voltage change △Vo% is defined as:
[]
ΚΩ
=
62
%
Vo
up
+
1089
%)
100
(
9
.
15
Vo
x. When trim-up +10% (1.2V X 1.1 = 1.32V)
Rtrim
E
[]
ΚΩ
=
=
4
62
10
up
+
1089
)
10
100
(
9
.
15
Care should be taken to ensure that the maximum
EATURES DESCRIPTIONS (CON.)
e set point, the
Rtrim
output power of the module remains at or below the
maximum rated power.
F
utput Voltage Adjustment (TRIM)
O
o increase or decrease the output voltag
T
modules may be connected with an external resistor
between the TRIM pin and either the Vo+ or Vo -. The
TRIM pin should be left open if this feature is not used.
Figure 15:
Circuit configuration for trim-down (decrease output
ternal resistor is connected between the TRIM
voltage)
the ex
If
and Vo- pins, the output voltage set point decreases.
The external resistor value required to obtain a
percentage of output voltage change △Vo% is defined
as:
[]
ΚΩ
=
62
%
Vo
down
1089
x. When trim-down –10% (1.2V X 0.9 = 1.08V)
Rtrim
E
[]
ΚΩ
=
=
9
.
46
62
10
1089
down
Rtrim
Figure 16:
Circuit configuration for trim-up (increase output
the external resistor is connected between the TRIM
voltage)
If
and Vo+ pins, the output voltage set point increases.
The external resistor value required to obtain a
8


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