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參數(shù)資料
| 型號： | FC250R |
| 元件分類： | DC/DC變換器 |
| 英文描述： | Power Module:dc-dc Converter; 18 Vdc to 36 Vdc Input, 28 Vdc Output; 250 W |
| 中文描述： | 電源模塊：型DC - DC轉(zhuǎn)換器，18伏到36伏直流電輸入，28伏直流輸出; 250瓦 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 1145K |
| 代理商： | FC250R |
Tyco Electronics Corp.
3
Data Sheet
May 1999
dc-dc Converter; 18 Vdc to 36 Vdc Input, 28 Vdc Output; 250 W
FC250R Power Module:
Electrical Specifications
(continued)
Table 2. Output Specifications
* These are manufacturing test limits. In some situations, results may differ.
Please consult your sales representative or the factory.
Table 3. Isolation Specifications
Parameter
Symbol
V
O, set
Min
27.45
Typ
28.0
Max
28.55
Unit
Vdc
Output Voltage Set Point
(V
I
= 28 V; I
Output Voltage
(Over all operating input voltage, resistive load,
and temperature conditions until end of life; see
Figure 9 and Feature Descriptions.)
Output Regulation:
Line (V
I
= 18 V to 36 V)
Load (I
O
= I
O, min
to I
O, max
Temperature (T
C
= –40 °C to +100 °C)
Output Ripple and Noise Voltage
(See Figures 4 and 10.):
RMS
Peak-to-peak (5 Hz to 20 MHz)
Output Current
(At I
O
< I
O, min
, the modules may exceed output
ripple specifications.)
Output Current-limit Inception
(V
O
= 90% of V
O, set
; see Feature Descriptions.)
Output Short-circuit Current
(V
O
= 1.0 V; indefinite duration, no hiccup mode;
see Figure 2.)
External Load Capacitance
(total for one unit or multiple paralleled units)
Efficiency
(V
I
= 28 V; I
O
= I
O, max
; T
see Figures 3 and 9.)
Switching Frequency
Dynamic Response
(
I
O
/
t = 1 A/10 μs, V
I
= 28 V, T
with a 330 μF aluminum and a 1.0 μF ceramic
capacitor across the load); see Figures 5 and 6.):
Load Change from I
O
= 50% to 75% of I
Peak Deviation
Settling Time (V
O
< 10% of peak deviation)
Load Change from I
O
= 50% to 25% of I
Peak Deviation
Settling Time (V
O
< 10% of peak deviation)
O
= I
O, max
; T
C
= 25 °C)
V
O
27.16
—
28.84
Vdc
)
—
—
—
—
—
—
0.01
0.05
100
0.1
0.2
300
%
%
mV
—
—
I
O
—
—
0.3
—
—
—
50
100
9.0
mVrms
mVp-p
A
I
O, cli
103*
—
130*
% I
—
—
—
150
% I
—
330
—
μF
C
= 25 °C;
η
—
88
—
%
—
—
500
—
kHz
C
= 25 °C (tested
O, max
:
O, max
:
—
—
—
—
—
—
—
—
300
250
400
250
—
—
—
—
mV
μs
mV
μs
Parameter
Min
—
10
Typ
1700
—
Max
—
—
Unit
pF
M
Isolation Capacitance
Isolation Resistance
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