Datasheet

DS_E48SH12010_10212014
2
TECHNICAL SPECIFICATIONS
(T
A
=25°C, airflow rate=300 LFM, V
in
=48Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
E48SH12010 (Standard)
Min.
Typ.
Max.
Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
80
Vdc
Transient (100ms)
100ms
100
Vdc
Operating Ambient Temperature
-40
85
°C
Storage Temperature
-55
125
°C
Input/Output Isolation Voltage
2250
Vdc
INPUT CHARACTERISTICS
Operating Input Voltage
36
75
Vdc
Input Under-Voltage Lockout
Turn-On Voltage Threshold
33
34
35
Vdc
Turn-Off Voltage Threshold
31
32
33
Vdc
Lockout Hysteresis Voltage
1
2
3
Vdc
Maximum Input Current
100% Load, 36Vin
3.9
A
No-Load Input Current
90
mA
Off Converter Input Current
3
10
mA
Inrush Current(I
2
t)
1
A
2
s
Input Reflected-Ripple Current
P-P thru 12µH inductor, 5Hz to 20MHz
20
mA
Input Voltage Ripple Rejection
120 Hz
60
dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Vin=48V, Io=Io.max, Tc=25°C
11.88
12.00
12.12
Vdc
Output Voltage Regulation
Over Load
Io=Io,min to Io,max
±10
±20
mV
Over Line
Vin=36V to 75V
±10
±20
mV
Over Temperature
Tc=-40°C to 115°C
±50
mV
Total Output Voltage Range
over sample load, line and temperature
11.76
12.24
V
Output Voltage Ripple and Noise
5Hz to 20MHz bandwidth
Peak-to-Peak
Full Load, 1µF ceramic, 10µF tantalum
40
80
mV
RMS
Full Load, 1µF ceramic, 10µF tantalum
10
20
mV
Operating Output Current Range
0
10
A
Output DC Current-Limit Inception
Output Voltage 10% Low
110
140
%
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient
48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
Positive Step Change in Output Current
50% Io.max to 75% Io.max
110
200
mV
Negative Step Change in Output Current
75% Io.max to 50% Io.max
110
200
mV
Settling Time (within 1% Vout nominal)
100
us
Turn-On Transient
Start-Up Time, From On/Off Control
15
25
ms
Start-Up Time, From Input
20
30
ms
Maximum Output Capacitance
Full load; no overshoot of Vout at startup
5000
µF
EFFICIENCY
100% Load
92
93
%
60% Load
92
93
%
ISOLATION CHARACTERISTICS
Input to Output
2250
Vdc
Isolation Resistance
10
MΩ
Isolation Capacitance
1500
pF
FEATURE CHARACTERISTICS
Switching Frequency
185
200
225
kHz
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)
Von/off at Ion/off=1.0mA
1.2
V
Logic High (Module Off)
Von/off at Ion/off=0.0 µA
3
50
V
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)
Von/off at Ion/off=1.0mA
1.2
V
Logic High (Module On)
Von/off at Ion/off=0.0 µA
3
50
V
ON/OFF Current (for both remote on/off logic)
Ion/off at Von/off=0.0V
1
mA
Leakage Current (for both remote on/off logic)
Logic High, Von/off=15V
50
uA
Output Voltage Trim Range
Pout ≦ max rated power, trim up curve refer to
figure4
-20
10
%
Output Voltage Remote Sense Range
Pout ≦ max rated power, refer to figure4
10
%
Output Over-Voltage Protection
Over full temp range; % of nominal Vout
13.8
16.2
V
GENERAL SPECIFICATIONS
MTBF
Io=80% of Io, max; 300LFM @25C
2.2
M hours
Weight
Without heat spreader
25
grams
Weight
With heat spreader
36.6
grams
Over-Temperature Shutdown ( Without heat spreader)
Refer to Figure 22 for Hot spot 1 location
(48Vin,80% Io, 200LFM,Airflow from Vin- to Vin+)
130
°C
Over-Temperature Shutdown (With heat spreader)
Refer to Figure 24 for Hot spot 2 location
(48Vin,80% Io, 200LFM,Airflow from Vin- to Vin+)
118
°C
Over-Temperature Shutdown ( NTC resistor )
125
°C
Note: Please attach thermocouple on NTC resistor to test OTP function, the hot spots’ temperature is just for reference.