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参数资料
| 型号： | F48SA28025PRFA |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 700 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT, FULL BRICK PACKAGE-10 |
| 文件页数： | 2/13页 |
| 文件大小： | 436K |
| 代理商： | F48SA28025PRFA |
DS_F48SA28025_08072008
10
FEATURES DESCRIPTIONS (CON.)
Output Voltage Adjustment (TRIM)
To increase or decrease the output voltage set point,
the modules may be connected with 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 17:
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:
Rt_dn
1
Δ
2
k
Ω
:=
Ex. When Trim-down -10% ( 28V * (1 – 10%) = 25.2V )
1
Rt_dn = --------- － 2 = 8k
10%
Figure 18:
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:
Rt_up
Vo 1
Δ
+
(
)
1.24
Δ
1
Δ
2
k
Ω
:=
Ex. When Trim-up +10% (28.0V * (1+10%) = 30.8V)
28*(1+10%)
1
Rt_up = ------------------- － -------- － 2 = 236.39k
1.24*10%
10%
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.
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相关代理商/技术参数 |
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|---|---|
| F48SA28025PRFB | 制造商:DELTA 制造商全称:Delta Electronics, Inc. 功能描述:Delphi Series F48SA, 700W Full Brick Family DC/DC Power Module: 48Vin, 28Vout |
| F48T12/CW | 制造商:OSRAM 功能描述:39W, 48" MOL, T12 INSTANT START SLIMLINE FLUORESCENT LAMP, COOL WHITE PHOSPHOR, |
| F48T12/CW/ALTO | 制造商:CEC Industries 功能描述:LAMP, FLUORESCENT, SINGLE, PIN, 39W, Lamp Base Type:Single Pin, Power Rating:39W |
| F48T12/CW/VHO | 制造商:OSRAM 功能描述:115W, 48"MOL, T12 VHO (1500 MA) RAPID START FLUORESCENT LAMP, COOL WHITE PHOSPHO |
| F48T8/TL741/HO | 制造商:CEC Industries 功能描述:LAMP, FLUORESCENT, R17D, 44W, Lamp Base Type:R17d, Power Rating:44W, Luminous Fl |
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