Datasheet

H48SA28016_04212011
2
TECHNICAL SPECIFICATIONS
(T
A
=25°C, airflow rate=300 LFM, V
in
=48Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
H48SA28016 (Standard)
Min.
Typ.
Max.
Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
80
Vdc
Transient
100ms
100
Vdc
Operating Temperature
Please refer to Fig. 21 for measuring point
-40
98
°C
Storage Temperature
-55
125
°C
Input/Output Isolation Voltage
1500
Vdc
INPUT CHARACTERISTICS
Operating Input Voltage
36
48
75
Vdc
Input Under-Voltage Lockout
Turn-On Voltage Threshold
33
35
Vdc
Turn-Off Voltage Threshold
31
33
Vdc
Lockout Hysteresis Voltage
2
Vdc
Maximum Input Current
100% Load, 36Vin
16
A
Minimum -Load Input Current
100
mA
Off Converter Input Current
Per ETSI EN300 132-2
15
mA
Inrush Current(I
2
t)
1
A
2
s
Input Reflected-Ripple Current
P-P thru 12µH inductor, 5Hz to 20MHz
12
mA
Input Voltage Ripple Rejection
120 Hz
60
dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Vin=48V, Io=Io.max, Tc=25°C
27.58
28.00
28.42
Vdc
Output Voltage Regulation
Over Load
Io=Io,min to Io,max
±28
±56
mV
Over Line
Vin=36V to 75V
±28
±56
mV
Over Temperature
Tc=-40°C to 100°C
±140
±280
mV
Total Output Voltage Range
over sample load, line and temperature
27.16
28.00
28.84
V
Output Voltage Ripple and Noise
5Hz to 20MHz bandwidth
Peak-to-Peak
Full Load, 1µF ceramic, 10µF Low ESR cap
280
560
mV
RMS
Full Load, 1µF ceramic, 10µF Low ESR cap
100
mV
Operating Output Current Range
16
A
Output DC Current-Limit Inception
Output Voltage 10% Low
105
120
140
%
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient
48V, Tested with 10µF aluminum, Low ESR cap and
1µF Ceramic load cap, Δ Io/Δ t=1A/10µS
Positive Step Change in Output Current
50% to 75% Io.max
560
mV
Negative Step Change in Output Current
75% to 50% Io.max
560
mV
Settling Time (within 1% Vout nominal)
300
µs
Turn-On Transient
Start-Up Time, From On/Off Control
20
50
ms
Start-Up Time, From Input
20
50
ms
Output Capacitive Load
Full load; 5% overshoot of Vout at startup
220
5000
µF
EFFICIENCY
100% Load
92.7
%
80% Load
93
%
ISOLATION CHARACTERISTICS
Input to Output
1500
Vdc
Input to Case
1500
Vdc
Output to Case
500
Vdc
Isolation Resistance
10
MΩ
Isolation Capacitance
1900
pF
FEATURE CHARACTERISTICS
Switching Frequency
280
kHz
ON/OFF Control Negative Remote On/Off logic
Logic Low (Module On)
Von/off at Ion/off=1.0mA
0
1.2
V
Logic High (Module Off)
Von/off at Ion/off=0.0 µA
2.4
15
V
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)
Von/off at Ion/off=1.0mA
0
1.2
V
Logic High (Module On)
Von/off at Ion/off=0.0 µA
2.4
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, Vin=48V
-50
+18
%
Output Voltage Remote Sense Range
Pout ≦ max rated power
0.5
V
Output Over-Voltage Protection
140
%
GENERAL SPECIFICATIONS
MTBF
Io=80% of Io, max; Ta=25°C
1.6
M hours
Weight
97
grams
Over-Temperature Shutdown
Please refer to Fig.21 for measuring point
104
°C