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ASQ24 DC-DC Converter Series Data Sheet
18 to 36 VDC Input; 1.0 to 12 VDC Output
Electrical Specifications: ASQ24T/S05080 (8.0 Volts Out)
Conditions: T A =25oC, Airflow=300 LFM (1.5 m/s), Vin=24 VDC, Vout=8.0 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
5.3 ADC, 8.0 VDC Out @ 18 VDC In
Vin = 24 V, converter disabled
Vin = 24 V, converter enabled
25MHz bandwidth
120Hz
2.6
68
6
TBD
2.8
ADC
mADC
mADC
mA PK-PK
dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point (no load)
7.920
8.000
8.080
VDC
Output Regulation
Over Line
Over Load
±4
±4
±10
±10
mV
mV
Output Voltage Range
Over line, load and temperature
2
7.880
8.120
VDC
Output Ripple and Noise - 25MHz bandwidth
External Load Capacitance
Output Current Range
Current Limit Inception
Peak Short-Circuit Current
RMS Short-Circuit Current
Full load + 10 μ F tantalum + 1 μ F ceramic
Plus full load (resistive)
Non-latching
Non-latching. Short=10m ? .
Non-latching
0
70
6.25
10
100
2200
5.3
6.75
12
1
mV PK-PK
μ F
ADC
ADC
A
Arms
DYNAMIC RESPONSE
Load Change 25% 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 = 94 μ F tant. + 1 μ F ceramic
160
160
400
mV
mV
μs
EFFICIENCY
6
5
4
3
100% Load
50% Load
Additional Notes: 2.
-40oC to 85oC
0.95
0.90
0.85
0.80
85.5
87
%
%
500 LFM (2.5 m/s)
2
1
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
36 V
24 V
18 V
20
30
40
50
60
70
80
90
0
1
2
3
4
5
6
Ambient Temperature [°C]
Load Current [Adc]
Fig. 8.0V.1: Available load current vs. ambient air temperature
Fig. 8.0V.2:
Efficiency vs. load current and input voltage for
and airflow rates for ASQ24T05080 converter with D height
pins mounted vertically with Vin = 24 V, air flowing from pin 3
to pin 1 and maximum FET temperature ? 120 ? C.
ASQ24T/S05080 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.
MCD10004 Rev. 1.5, 15-Jun-10
Page 14 of 70
www.power-one.com
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