Datasheet

E36SC12009_05152014
2
TECHNICAL SPECIFICATIONS
(T
A
=25°C, airflow rate=300 LFM, V
in
=48Vdc, nominal Vout unless otherwise noted.)
Note1: For applications with higher output capacitive load, please contact Delta.
Note2: Trim down range -10% for 18Vin ~75Vin, Trim up range +10% for 20Vin ~ 75Vin.
PARAMETER
NOTES and CONDITIONS
E36SC12009(Standard)
Min.
Typ.
Max.
Units
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Vdc
Continuous
0
80
Vdc
Transient (100ms)
100ms
100
Vdc
Operating Ambient Temperature
-40
85
°C
Storage Temperature
-55
125
°C
Input/Output Isolation Voltage
1500
Vdc
INPUT CHARACTERISTICS
Operating Input Voltage
18
48
75
Vdc
Input Under-Voltage Lockout
Turn-On Voltage Threshold
16.5
17.2
17.9
Vdc
Turn-Off Voltage Threshold
15.5
16.2
16.9
Vdc
Lockout Hysteresis Voltage
0.3
1.0
1.8
Vdc
Maximum Input Current
100% Load, 18Vin
7.7
A
No-Load Input Current
Vin=48V, Io=0A
60
mA
Off Converter Input Current
Vin=48V
12
mA
Inrush Current (I2t)
1
A2s
Input Reflected-Ripple Current
P-P thru 12µH inductor, 5Hz to 20MHz
20
mA
Input Voltage Ripple Rejection
120 Hz
50
dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Vin=48V, Io=Io.max, Tc=25°C
11.82
12
12.18
Vdc
Output Voltage Regulation
Over Load
Io=Io, min to Io, max
±6
±24
mV
Over Line
Vin=18V to 75V
±6
±24
mV
Over Temperature
Tc=-40°C to 85°C
±120
mV
Total Output Voltage Range
Over sample load, line and temperature
11.64
12
12.36
V
Output Voltage Ripple and Noise
5Hz to 20MHz bandwidth
Peak-to-Peak
Vin=48V, Full Load, 1µF ceramic, 10µF tantalum
80
mV
RMS
Vin=48V, Full Load, 1µF ceramic, 10µF tantalum
20
mV
Operating Output Current Range
Vin=18V to75V
0
9
A
Operating Output Current Range
Output Over Current Protection(hiccup mode)
Output Voltage 10% Low
110
140
%
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient
48Vin, 10µF Tan & 1µF Ceramic load cap, 0.1A/µs
Positive Step Change in Output Current
75% Io.max to 50% Io.max
400
mV
Negative Step Change in Output Current
50% Io.max to 75% Io.max
400
mV
Settling Time (within 1% Vout nominal)
200
µs
Turn-On Transient
Start-Up Time, From On/Off Control
55
mS
Start-Up Time, From Input
55
mS
Output Capacitance (note1)
Cap ESR>=5mohm;Full load;5%overshoot of Vout at startup
0
2000
µF
EFFICIENCY
100% Load
Vin=24V
92.5
%
100% Load
Vin=48V
92
%
60% Load
Vin=48V
91.5
%
ISOLATION CHARACTERISTICS
Input to Output
1500
Vdc
Isolation Resistance
10
MΩ
Isolation Capacitance
1000
pF
FEATURE CHARACTERISTICS
Switching Frequency
350
KHz
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)
Von/off
-0.7
0.8
V
Logic High (Module Off)
Von/off
3.0
5
V
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)
Von/off
-0.7
0.8
V
Logic High (Module On)
Von/off
3.0
5
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=5V
50
uA
Output Voltage Trim Range(note 2)
Pout ≦ max rated power,Io ≦ Io.max
-10
10
%
Output Voltage Remote Sense Range
Pout ≦ max rated power,Io ≦ Io.max
10
%
Output Over-Voltage Protection
Over full temp range; % of nominal Vout
115
140
%
GENERAL SPECIFICATIONS
MTBF
Io=80% of Io, max; Ta=25°C, airflow rate=300FLM
4.5
M hours
Weight
Without heat spreader
24.6
grams
Weight
With heat spreader
33.2
grams
Over-Temperature Shutdown ( Without heat spreader)
Refer to Figure 19 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 22 for Hot spot 2 location
(48Vin,80% Io, 200LFM,Airflow from Vin+ to Vin-)
120
°C
Over-Temperature Shutdown ( NTC resistor )
Refer to Figure 19 for NTC resistor location
125
°C
Note: Please attach thermocouple on NTC resistor to test OTP function, the hot spots’ temperature is just for reference.