DRQ-12-42-D48 Datasheet, PDF (3/24 Pages) Murata Power Solutions Inc. – 500W Digital Fully Regulated Intermediate DC-DC Bus Converter

DRQ-12/42-D48 Series
500W Digital Fully Regulated
Intermediate DC-DC Bus Converter
FUNCTIONAL SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
Conditions ➀
Minimum
Typical/Nominal
Maximum
Units
Input Voltage, Continuous
0
80
Vdc
Input Voltage, Transient
100 mS max. duration
100
Vdc
Isolation Voltage
Input to output
2250
Vdc
On/Off Remote Control
Power on, referred to -Vin
0
13.5
Vdc
Output Power
0
515.5
W
Output Current
Current-limited, no damage, short-circuit
protected
0
43.5
A
Storage Temperature Range
Vin = Zero (no power)
-55
125
°C
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
Conditions ➀ ➂
Operating voltage range
38
48
75
Vdc
Recommended External Fuse
Fast blow
25
A
Start-up threshold: (measured @ no load)
Rising input voltage
37
37.5
38
Vdc
Undervoltage shutdown: (measured @ no load)
Falling input voltage
35
35.5
36
Vdc
Internal Filter Type
Pi
Input current
Full Load Conditions
Vin = nominal
11.39
11.68
A
Low Line
Vin = minimum
14.55
14.63
A
Inrush Transient
0.15
0.30
A²-Sec.
Short Circuit Input Current
0.05
0.1
A
No Load Input Current
Iout = minimum, unit = ON
130
200
mA
Shut-Down Input Current (Off, UV, OT)
10
20
mA
Reflected (back) ripple current ➁
Measured at input with specified filter
40
70
mA, p-p
Pre-biased startup
External output voltage < Vset
Monotonic
GENERAL and SAFETY
Efficiency
Vin = 48V, full load
95.5
%
Vin = min., full load
95.5
%
Isolation
Isolation Voltage
Input to output
2250
Vdc
Isolation Voltage
Input to baseplate
1500
Vdc
Isolation Voltage
Output to baseplate
1500
Vdc
Insulation Safety Rating
Functional
Isolation Resistance
10
MΩ
Isolation Capacitance
1500
pF
Safety
Certified to UL-60950-1, CSA-C22.2 No. 60950-
1, IEC/60950-1, 2nd edition
Yes
Calculated MTBF
Per Telcordia SR332, issue 1, class 3, ground
fixed, Tambient = +25°C
1.3
Hours x 10⁶
DYNAMIC CHARACTERISTICS
Switching Frequency
Variable frequency control (default)
175-250
KHz
Vin Start up delay time
25
30
mS
Enable Start up delay time
3
5
mS
Rise time
15
20
mS
Vout Fall Time of Regulated Off: (from 100%
to 0%)
18
20
22
mS
Dynamic Load Response
50-75-50% load step, settling time to within 1%
of Vout (Cout=1000μF)
200
300
μSec
Dynamic Load Peak Deviation
same as above
±400
±600
mV
FEATURES and OPTIONS
Remote On/Off Control ➃
“N” suffix:
Negative Logic, ON state
ON = Ground pin or external voltage
-0.1
0.8
V
Negative Logic, OFF state
OFF = Pin open or external voltage
3.5
13.5
V
Control Current
Open collector/drain
5
mA
“P” suffix:
Positive Logic, ON state
ON = Pin open or external voltage
3.5
13.5
V
Positive Logic, OFF state
OFF = Ground pin or external voltage
0
0.8
V
Control Current
Open collector/drain
1
mA
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MDC_DRQ-12/42-D48.A03 Page 3 of 24