Datasheet

DS_E36SR3R320_10292013
2
TECHNICAL SPECIFICATIONS
(T
A
=25°C, airflow rate=300 LFM, V
in
=48Vdc, nominal Vout unless otherwise noted.)
PARAMETER
NOTES and CONDITIONS
E36SR3R320 (Standard)
Min.
Typ.
Max.
Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Continuous
18
24/48
75
Vdc
Transient (100ms)
100ms
100
Vdc
Operating Temperature
Refer to Figure 21 for measuring point
-40
122
°C
Storage Temperature
-55
125
°C
Input/Output Isolation Voltage
2250
Vdc
INPUT CHARACTERISTICS
Operating Input Voltage
18
24/48
75
Vdc
Input Under-Voltage Lockout
Turn-On Voltage Threshold
16.5
17
17.5
Vdc
Turn-Off Voltage Threshold
15.5
16
16.5
Vdc
Lockout Hysteresis Voltage
1
2
Vdc
Maximum Input Current
100% Load, 18Vin
4.3
A
No-Load Input Current
No load, 48Vin
80
mA
Off Converter Input Current
10
15
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
3.267
3.300
3.333
Vdc
Output Voltage Regulation
Over Load
Io=Io,min to Io,max
±3.3
±6.6
mV
Over Line
Vin=18V to 75V
±3.3
±6.6
mV
Over Temperature
Tc=-40°C to 85°C
±16.5
mV
Total Output Voltage Range
over sample load, line and temperature
3.234
3.366
V
Output Voltage Ripple and Noise
5Hz to 20MHz bandwidth
Peak-to-Peak
Full Load, 1µF ceramic, 10µF tantalum
80
mV
RMS
Full Load, 1µF ceramic, 10µF tantalum
10
mV
Operating Output Current Range
0
20
A
Output DC Current-Limit Inception
Output Voltage 10% Low
110
140
%Io
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient
48V, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
Positive Step Change in Output Current
25% Io.max to 50% Io.max
150
mV
Negative Step Change in Output Current
50% Io.max to 25% Io.max
150
mV
Settling Time (within 1% Vout nominal)
200
us
Turn-On Transient
Start-Up Time, From On/Off Control
10
20
ms
Start-Up Time, From Input
10
20
ms
Maximum Output Capacitance
Full load; 5% overshoot of Vout at startup
5000
µF
EFFICIENCY
100% Load
Vin=48V; Tc=25°C
88
%
60% Load
89
%
ISOLATION CHARACTERISTICS
Input to Output
2250
Vdc
Isolation Resistance
10
MΩ
Isolation Capacitance
1500
pF
FEATURE CHARACTERISTICS
Switching Frequency
300
kHz
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)
Von/off at Ion/off=1.0mA
0
1.8
V
Logic High (Module Off)
Von/off at Ion/off=0.0 µA
2.4
18
V
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)
Von/off at Ion/off=1.0mA
0
1.8
V
Logic High (Module On)
Von/off at Ion/off=0.0 µA
2.4
18
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
Across Pins 9 & 5, Pout ≦ max rated power
-10
10
%
Output Voltage Remote Sense Range
Pout ≦ max rated power
10
%
Output Over-Voltage Protection
Over full temp range; % of nominal Vout
115
140
%Vo
GENERAL SPECIFICATIONS
MTBF
Io=80% of Io, max; 300LFM @25℃
3.2
M hours
Weight
Bare module without heat-sink
25
grams
Over-Temperature Shutdown
Refer to Figure 21 for measuring point
127
°C