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| 型號(hào)： | E2S15ZE-C4 |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封裝： | THROUGH HOLE PACKAGE-8 |
| 文件頁(yè)數(shù)： | 5/10頁(yè) |
| 文件大小： | 170K |
| 代理商： | E2S15ZE-C4 |
E2S Series – Eighth-Brick DC/DC Converter
48V Input
Data Sheet
5.0V, 3.3V, 2.5V, 2.0V, 1.8V, 1.5V, 1.2V Output
REV. JAN 22, 2003
Page 4 of 10
Output Voltage Trim
The trim feature allows the user to adjust the
output voltage from the nominal value. This can
be
used
to
compensate
distribution
drops,
perform margining in production, or accommodate
other requirements when output voltage needs to
be adjusted from the nominal.
The converter’s output voltage (at the terminals)
can be adjusted up 10% or down 20% relative to
the nominal output voltage by connecting the
TRIM pin to sense (+) or sense (-) via a trim
resistor. The Trim pin should be left open if the
trimming function is not to be used.
To trim up the output voltage, a trim resistor, RT-
INCR, should be connected between TRIM (Pin 6)
and SENSE(+) (Pin 7), as illustrated in Fig. 1.
The trim-up resistor can be calculated from:
Figure 1. Output Voltage Trim-up
5.1(100+?)VO-NOM – 624.75
RT-INCR =
__________________________________ - 10.2 [KO]
1.225 ?
where,
RT-INCR = Required value of trim-up resistor
VO-NOM =
Nominal
value
of
output
voltage
insert absolute value bars
VO-REQ - VO-NOM
? =
_________________________
x 100
[%]
VO-NOM
VO-REQ = Desired (trimmed) output voltage
When trimming up, care must be taken not to
exceed the converter‘s maximum allowable output
power.
To trim down the output voltage, a trim resistor,
RT-DECR, should be connected between TRIM (Pin
6) and SENSE(-) (Pin 5), as illustrated in Figure 2.
Figure 2. Output Voltage Trim-down
The trip-down resistor can be calculated from:
510
RT-DECR =
____________ - 10.2 [KO]
?
where,
RT-DECR =. Required value of trim-down resistor
and ? is as defined above.
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