参数资料
| 型号： | SQM48T25010-NDBP |
| 厂商： | Power-One |
| 文件页数： | 8/30页 |
| 文件大小： | 0K |
| 描述： | DC/DC EIGHTH BRICK |
| 标准包装： | 310 |
| 系列： | * |
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SQM48 Series Data Sheet
SemiQ
TM
Family 25A DC-DC Converters
Electrical Specifications: SQM48T/S25025 (2.5 Volts Out )
Conditions: T A =25oC, Airflow=300 LFM (1.5 m/s), Vin=48 Vdc, Vout=2.5 Vdc unless otherwise specified.
PARAMETER
NOTES
MIN
TYP
MAX
UNITS
INPUT CHARACTERISTICS
Maximum Input Current
Input Stand-by Current
Input No Load Current (0 load on the output)
Input Reflected-Ripple Current
Input Voltage Ripple Rejection
25 Adc, 2.5 Vdc Out @ 36 Vdc In
Vin = 48 V, converter disabled
Vin = 48 V, converter enabled
25MHz bandwidth
120Hz
3
37
6
TBD
2.0
Adc
mAdc
mAdc
mA PK-PK
dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point (no load)
-40oC to 85oC
2.475
2.500
2.525
Vdc
Output Regulation
Over Line
Over Load
±2
±2
±5
±5
mV
mV
Output Voltage Range
Output Ripple and Noise - 25MHz bandwidth
Over line, load and temperature
Full load + 10 μ F tantalum + 1 μ F ceramic
2.462
30
2.538
50
Vdc
mV PK-PK
External Load Capacitance
Output Current Range
Plus full load (resistive)
0
20,000
25
μ F
Adc
Current Limit Inception
Peak Short-Circuit Current
RMS Short-Circuit Current
Non-latching
Non-latching. Short=10m ? .
Non-latching
26.5
30
35
32
46
6.7
Adc
A
Arms
DYNAMIC RESPONSE
Load Change 20% of Iout Max, di/dt = 0.1 A/ μ S
di/dt = 5 A/ μ S
Setting Time to 1%
Co = 1 μ F ceramic
Co = 450 μ F tant. + 1 μ F ceramic
80
140
100
mV
mV
μs
EFFICIENCY
30
25
20
15
100% Load
50% Load
500 LFM (2.5 m/s)
0.95
0.90
0.85
0.80
85.5
89
%
%
10
5
0
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
30 LFM (0.15 m/s)
0.75
0.70
0.65
72 V
48 V
36 V
20
30
40
50
60
70
80
90
0
5
10
15
20
25
30
Ambient Temperature [°C]
Fig. 2.5V.1: Available load current vs. ambient air temperature
and airflow rates for SQM48T25025 converter with D height
pins mounted vertically with air flowing from pin 3 to pin 1,
MOSFET temperature ? 120 ? C, Vin = 48 V.
Load Current [Adc]
Fig. 2.5V.2: Efficiency vs. load current and input voltage for
SQM48T/S25025 converter mounted vertically with air flowing
from pin 3 to pin 1 at a rate of 300 LFM (1.5 m/s) and
Ta = 25 ? C.
MCD10085 Rev. 1.1, 08-Jul-10
Page 8 of 30
www.power-one.com
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