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參數(shù)資料
| 型號： | QW050F1 |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 1008K |
| 代理商： | QW050F1 |
Lucent Technologies Inc.
3
Data Sheet
May 2000
dc-dc Converters; 36 to 75 Vdc Input, 3.3 Vdc Output; 33 W to 50 W
QW050F1 and QW075F1 Power Modules:
Electrical Specifications
(continued)
Table 2. Output Specifications
* Consult your sales representative or the factory.
These are manufacturing test limits. In some situations, results may differ.
Table 3. Isolation Specifications
Parameter
Device
All
Symbol
V
O, set
Min
3.25
Typ
3.3
Max
3.35
Unit
Vdc
Output Voltage Set Point
(V
I
= 48 V; I
O
= I
O, max
; T
C
= 25 °C)
Output Voltage
(Over all operating input voltage, resistive load,
and temperature conditions until end of life. See
Figure 15.)
Output Regulation:
Line (V
I
= 36 V to 75 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 Figure 14.):
RMS
Peak-to-peak (5 Hz to 20 MHz)
External Load Capacitance
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, nom
)
Efficiency (V
I
= 48 V; I
O
= I
O, max
; T
C
= 70 °C)
All
V
O
3.20
—
3.40
Vdc
All
All
All
—
—
—
—
—
—
0.01
0.05
15
0.1
0.2
50
%V
O
%V
O
mV
All
All
All
—
—
—
I
O
I
O
—
—
0
0.5
0.5
—
—
—
—
—
40
150
*
10
15
mVrms
mVp-p
μF
A
A
QW050F1
QW075F1
QW050F1
QW075F1
QW050F1
QW075F1
All
All
I
O, cli
I
O, cli
η
η
—
—
—
—
—
—
15
20
81
81
380
20
26
—
—
—
A
A
%
%
kHz
Switching Frequency
Dynamic Response
(
I
O
/
t = 1 A/10 μs, V
I
= 48 V, T
C
= 25 °C; tested
with a 1000 μF aluminum and a 1.0 μF ceramic
capacitor across the load.):
Load Change from I
O
= 50% to 75% of I
O, max
:
Peak Deviation
Settling Time (V
O
< 10% of peak deviation)
Load Change from I
O
= 50% to 25% of I
O, max
:
Peak Deviation
Settling Time (V
O
< 10% of peak deviation)
—
—
—
—
—
—
—
—
5
700
5
700
—
—
—
—
%V
O, set
μs
%V
O, set
μs
Parameter
Min
—
10
Typ
2500
—
Max
—
—
Unit
pF
M
Isolation Capacitance
Isolation Resistance
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