Datasheet

Q36SR12017_01262014
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
Q36SR12017(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
17
18
Vdc
Turn-Off Voltage Threshold
15
16
17
Vdc
Lockout Hysteresis Voltage
0.3
1
1.8
Vdc
Maximum Input Current
100% Load, 18Vin
15
A
No-Load Input Current
Vin=48V,Io=0A
100
mA
Off Converter Input Current
Vin=48V
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
50
dB
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Vin=48V, Io=Io.max, Tc=25°C
11.82
12.00
12.18
Vdc
Output Voltage Regulation
Over Load
Io=Io, min to Io, max
±3
±15
mV
Over Line
Vin=18V to 75V
±3
±15
mV
Over Temperature
Tc=-40°C to 110°C
±120
mV
Total Output Voltage Range
Over sample load, line and temperature
11.64
12.00
12.36
V
Output Voltage Ripple and Noise
5Hz to 20MHz bandwidth
Peak-to-Peak
Full Load, 1µF ceramic, 10µF tantalum
100
mV
RMS
Full Load, 1µF ceramic, 10µF tantalum
mV
Operating Output Current Range
Vin=18V to75V
0
17
A
Operating Output Current Range
Output Over Current Protection(hiccup model)
Output Voltage 10% Low
110
140
%
DYNAMIC CHARACTERISTICS
Output Voltage Current Transient
Vin=48V, 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
28
mS
Start-Up Time, From Input
28
mS
Output Capacitance (note1)
Full load; 5% overshoot of Vout at startup
0
5000
µF
EFFICIENCY
100% Load
Vin=24V
93.5
%
100% Load
Vin=48V
93.0
%
60% Load
Vin=48V
92.0
%
ISOLATION CHARACTERISTICS
Input to Output
1500
Vdc
Isolation Resistance
10
MΩ
Isolation Capacitance
1000
pF
FEATURE CHARACTERISTICS
Switching Frequency
260
KHz
ON/OFF Control, Negative Remote On/Off logic
Logic Low (Module On)
Von/off
0.8
V
Logic High (Module Off)
Von/off
2.4
5
V
ON/OFF Control, Positive Remote On/Off logic
Logic Low (Module Off)
Von/off
0.8
V
Logic High (Module On)
Von/off
2.4
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
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, normal input,600FLM
3.0
M hours
Weight
Without heat spreader
45.5
grams
Weight
With heat spreader
61.1
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-)
135
°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
130
°C
Note: Please attach thermocouple on NTC resistor to test OTP function, the hot spots’ temperature is just for reference.