Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those
listed in the Performance/Functional Specifications Table is not implied or recommended.
INPUT
Operating voltage range
Recommended External Fuse
Start-up threshold
Undervoltage shutdown
Overvoltage Shutdown
Overvoltage Recover
Internal Filter Type
Input current
Full Load Conditions
Low Line
Inrush Transient
Short Circuit Input Current
No Load Input Current
Shut-Down Input Current (Off, UV, OT)
Reflected (back) ripple current
➁
Pre-biased startup
Conditions
➀ ➂
44
Fast blow
Rising input voltage
Falling input voltage
41
39
64
62
48
25
42
40
66
64
Pi
13.02
14.2
0.15
0.05
150
10
100
Monotonic
95
95.5
96
96
2250
1500
1500
functional
10
1500
Certified to UL-60950-1, CSA-C22.2 No. 60950-
1, IEC 60950-1, 2nd edition
Per Telcordia SR332, issue 2, class 3, method 1,
ground fixed, Tambient = +25°C
Yes
3.2
150
25
3
15
200
±250
Hours x 10
6
KHz
mS
mS
mS
μSec
mV
60
43
41
68
66
Vdc
A
Vdc
Vdc
Vdc
Vdc
Vin = nominal
Vin = minimum
Iout = minimum, unit = ON
Measured at input with specified filter
External output voltage < Vset
Vin = 48V, full load
Vin = min., full load
Input to output, continuous
Input to baseplate, continuous
Output to baseplate, continuous
14.02
14.28
0.30
0.1
200
20
180
A
A
A
2
-Sec.
A
mA
mA
mA, p-p
GENERAL and SAFETY
Efficiency
Isolation
Isolation Voltage
Isolation Voltage
Isolation Voltage
Insulation Safety Rating
Isolation Resistance
Isolation Capacitance
Safety
Calculated MTBF
%
%
Vdc
Vdc
Vdc
MΩ
pF
DYNAMIC CHARACTERISTICS
Fix Frequency Control
Vin Startup delay time
Enable startup delay time
Rise Time
Dynamic Load Response
Dynamic Load Peak Deviation
Power on to Vout regulated
Remote ON to Vout regulated
50-75-50% load step, settling time to within 1%
of Vout (Cout=3300μF)
same as above
30
5
20
250
±300
FEATURES and OPTIONS
Remote On/Off Control
➃
“N” suffix:
Negative Logic, ON state
Negative Logic, OFF state
Control Pin Shutdown Current
Control Pin On Current
“P” suffix:
Positive Logic, ON state
Positive Logic, OFF state
Control Pin Shutdown Current
Control Pin On Current
ON = Ground pin or external voltage
OFF = Pin open or external voltage
Open collector/drain
-0.1
3.5
0.8
13.5
5
1
13.5
0.8
1
5
V
V
mA
mA
V
V
mA
mA
ON = Pin open or external voltage
OFF = Ground pin or external voltage
Open collector/drain
3.5
0
www.murata-ps.com/support
MDC_DRQ-12/50-L48NK.B02
Page 3 of 26
DRQ-12/50-L48 Series
600W Digital Fully Regulated
Intermediate DC-DC Bus Converter
FUNCTIONAL SPECIFICATIONS, (CONT.)
OUTPUT
Total Output Power
Voltage
Nominal Output Voltage
Setting Accuracy
Output Voltage
Overvoltage Protection
Current
Output Current Range
Minimum Load
Current Limit Inception
Short Circuit
Short Circuit Current
Short Circuit Duration
(remove short for recovery)
Short circuit protection method
Regulation
➄
Line Regulation
Load Regulation
Ripple and Noise
➅
Temperature Coefficient
Maximum Capacitive Loading
Conditions
➀
Minimum
0
Typical/Nominal
600
12
Maximum
612
12.24
2
12.05
15.6
50
Units
W
Vdc
% of Vnom
Vdc
Vdc
A
A
A
No trim, all conditions
At 50% load, no trim
@Vin=48V, Iout=0, Ta=+25°C
Via magnetic feedback
11.76
-2
11.95
13.8
0
14.4
90% of Vout, after warmup
Hiccup technique, autorecovery within ±1.25%
of Vout
Output shorted to ground, no damage
Current limiting
56
58
0.4
Continuous
60
1
Iout = min. to max.
5 Hz- 20 MHz BW
At all outputs
Low ESR
40
40
150
100
120
200
±0.02
10,000
mV
mV
mV pk-pk
% of Vout./°C
μF
Inches
mm
Inches
mm
Ounces
Grams
Ounces
Grams
Inches
mm
μ-inches
μ-inches
MECHANICAL (Through Hole Models)
Outline Dimensions with heat sink
(Please refer to outline drawing)
Outline Dimensions with baseplate
(Please refer to outline drawing)
Weight with heat sink
Weight with baseplate
Through Hole Pin Diameter
Through Hole Pin Material
TH Pin Plating Metal and Thickness
LxWxH
LxWxH
2.3 x 1.45 x 1.1
58.4 x 36.83 x 27.94
2.3 x 1.45 x .052
58.4x 36.83x 13.2
3.38
96
2.63
74.5
0.04 & 0.062
1.016 & 1.575
Copper alloy
98.4-299
4.7-19.6
-40
-40
-55
135
B
RoHS-6
85
110
125
Nickel subplate
Gold overplate
See Derating
No derating
Vin = Zero (no power)
Measured in center
External filter is required
ENVIRONMENTAL
Operating Ambient Temperature Range
Operating Case Temperature
Storage Temperature
Thermal Protection/Shutdown
Electromagnetic Interference
Conducted, EN55022/CISPR22
RoHS rating
°C
°C
°C
°C
Class
Notes
➀
Unless otherwise noted, all specifications apply at Vin = nominal, nominal output voltage and full
output load. General conditions are near sea level altitude, no base plate installed and natural
convection airflow unless otherwise specified. All models are tested and specified with external
parallel 1 μF and 10 μF output capacitors (see Technical Notes). All capacitors are low-ESR types
wired close to the converter. These capacitors are necessary for our test equipment and may not
be needed in the user’s application.
➁
Input (back) ripple current is tested and specified over 5 Hz to 20 MHz bandwidth. Input filtering is
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