参数资料
型号: E48SR1R525NRFA
元件分类: 电源模块
英文描述: 1-OUTPUT 66.66 W DC-DC REG PWR SUPPLY MODULE
封装: ROHS COMPLIANT PACKAGE-8
文件页数: 2/15页
文件大小: 589K
代理商: E48SR1R525NRFA
DS_E48SR3R320_05142009
10
FEATURES DESCRIPTIONS (CON.)
Output Voltage Adjustment (TRIM)
To increase or decrease the output voltage set point,
connect an external resistor between the TRIM pin and
either the SENSE(+) or SENSE(-). The TRIM pin
should be left open if this feature is not used.
Figure 18:
Circuit configuration for trim-down (decrease
output voltage)
If the external resistor is connected between the TRIM
and SENSE (-) pins, the output voltage set point
decreases (Fig. 18). The external resistor value
required to obtain a percentage of output voltage
change △% is defined as:
()
Ω
Δ
=
K
down
Rtrim
2
.
10
511
Ex. When Trim-down -20% (3.3V×0.8=2.64V)
()
Ω
=
Ω
=
K
down
Rtrim
35
.
15
2
.
10
20
511
Figure 19:
Circuit configuration for trim-up (increase output
voltage)
If the external resistor is connected between the TRIM
and SENSE (+) the output voltage set point increases
(Fig. 19). The external resistor value required to obtain
a percentage output voltage change △% is defined
as:
()
Ω
Δ
Δ
+
=
K
up
Rtrim
2
.
10
511
1.225
)
(100
Vo
11
.
5
Ex. When Trim-up +10% (3.3V×1.1=3.63V)
()
Ω
=
×
+
×
=
K
up
Rtrim
12
.
90
2
.
10
511
10
225
.
1
)
10
100
(
3
.
3
11
.
5
The output voltage can be increased by both the remote
sense and the trim, however the maximum increase is
the larger of either the remote sense or the trim, not the
sum of both.
When using remote sense and trim, the output voltage
of the module is usually increased, which increases the
power output of the module with the same output
current.
Care should be taken to ensure that the maximum
output power of the module remains at or below the
maximum rated power.
相关PDF资料
PDF描述
E52-026-050-AGAA-A 26 CONTACT(S), FEMALE, COMBINATION LINE CONNECTOR, SURFACE MOUNT, SOCKET
E52-026-050-AGAA-B 26 CONTACT(S), FEMALE, COMBINATION LINE CONNECTOR, SURFACE MOUNT, SOCKET
E52B-026-230-AAGAA-A 26 CONTACT(S), FEMALE, COMBINATION LINE CONNECTOR, SURFACE MOUNT, SOCKET
E53-026-3806A 26 CONTACT(S), MALE, COMBINATION LINE CONNECTOR, PLUG
E53-026-3806B 26 CONTACT(S), MALE, COMBINATION LINE CONNECTOR, PLUG
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