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H24SN28012NRFA Datasheet(PDF) 2 Page - Delta Electronics, Inc.

Part No. H24SN28012NRFA
Description  Delphi Series H24SN, 350W Half Brick Family DC/DC Power Modules: 18~36Vin, 28V/12.5A out
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Maker  DELTA [Delta Electronics, Inc.]
Homepage  http://www.deltaww.com
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H24SN28012NRFA Datasheet(HTML) 2 Page - Delta Electronics, Inc.

 
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TECHNICAL SPECIFICATIONS
(TA=25°C, airflow rate=300 LFM, Vin=24Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
H24SN28012NRFA
Min.
Typ.
Max.
Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
40
Vdc
Transient (100ms)
100ms
50
Vdc
Operating Temperature
Refer to Fig.20 for measuring point
-40
115
°C
Storage Temperature
-55
125
°C
Input/Output Isolation Voltage
2250
Vdc
INPUT CHARACTERISTICS
Operating Input Voltage
18
24
36
Vdc
Input Under-Voltage Lockout
Turn-On Voltage Threshold
17.5
18
Vdc
Turn-Off Voltage Threshold
15.5
16.5
Vdc
Lockout Hysteresis Voltage
1
Vdc
Maximum Input Current
100% Load, 18Vin
24
A
Minimum -Load Input Current
500
mA
Off Converter Input Current
15
mA
Inrush Current(I
2t)
0.5
2
A
2s
Input Reflected-Ripple Current
P-P thru 12µH inductor, 5Hz to 20MHz
30
mA
Input Voltage Ripple Rejection
120 Hz
60
dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Vin=48V, Io=Io.max, Tc=25°C
27.72
28.00
28.28
Vdc
Output Voltage Regulation
Over Load
Io=Io,min to Io,max
±
20
±
56
mV
Over Line
Vin=18V to 36V
±
20
±
112
mV
Over Temperature
Tc=-40°C to 100°C
±
250
±
300
mV
Total Output Voltage Range
over sample load, line and temperature
27.25
28.00
28.75
V
Output Voltage Ripple and Noise
5Hz to 20MHz bandwidth
Peak-to-Peak
Full Load, 1µF ceramic, 10µF Low ESR cap
60
150
mV
RMS
Full Load, 1µF ceramic, 10µF Low ESR cap
14
40
mV
Operating Output Current Range
0.3
12.5
A
Output DC Current-Limit Inception
Output Voltage 10% Low
120
%
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient
24V, Tested with a aluminum ,10µF Low ESR cap
and 1µF Ceramic load cap, ΔIo/Δt=1A/µs
Positive Step Change in Output Current
50% Io.max to 75% Io.max
400
mV
Negative Step Change in Output Current
75% Io.max to 50% Io.max
400
mV
Settling Time (within 1% Vout nominal)
300
us
Turn-On Transient
Start-Up Time, From On/Off Control
30
ms
Start-Up Time, From Input
30
ms
Output Capacitive Load
Full load; 5% overshoot of Vout at startup
330
5000
µF
EFFICIENCY
100% Load
90.5
%
60% Load
91.0
%
ISOLATION CHARACTERISTICS
Input to Output
2250
Vdc
Input to Case
2250
Vdc
Output to Case
500
Vdc
Isolation Resistance
10
MΩ
Isolation Capacitance
1900
pF
FEATURE CHARACTERISTICS
Switching Frequency
330
kHz
ON/OFF Control Negative Remote On/Off logic
Logic Low (Module On)
Von/off at Ion/off=1.0mA
0
0.8
V
Logic High (Module Off)
Von/off at Ion/off=0.0 µA
15
V
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)
Von/off at Ion/off=1.0mA
0
0.8
V
Logic High (Module On)
Von/off at Ion/off=0.0 µA
15
V
ON/OFF Current
Ion/off at Von/off=0.0V
1
mA
Leakage Current
Logic High, Von/off=15V
50
uA
Output Voltage Trim Range
Across Pins 9 & 5, Pout ≦ max rated power
-40
+10
%
Output Voltage Remote Sense Range
Pout ≦ max rated power
0.5
V
Output Over-Voltage Protection
Over full temp range; % of nominal Vout
115
140
%
GENERAL SPECIFICATIONS
MTBF
Io=80% of Io, max; Ta=25°C
2.19
M hours
Weight
62
grams
Over-Temperature Shutdown
Refer to Fig.20 for measuring point
120
°C
H24SN28012_07272006
2


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