HPQ-12-25-D48 Datasheet, PDF (4/12 Pages) Murata Manufacturing Co., Ltd. – Isolated 300-Watt Quarter Brick DC/DC Converters

HPQ-12/25-D48 Series
Isolated 300-Watt Quarter Brick DC/DC Converters
FUNCTIONAL SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
Conditions ➀
Minimum
Typical/Nominal
Maximum
Units
Input Voltage, Continuous
Full power operation
36
75
Vdc
Input Voltage, Transient
Operating or non-operating,
100 mS max. duration
100
Vdc
Isolation Voltage
Input to output tested 100 mS
2250
Vdc
Input Reverse Polarity
None, install external fuse
None
Vdc
On/Off Remote Control
Power on or off, referred to -Vin
0
15
Vdc
Output Power
0
300
W
Output Current
Current-limited, no damage,
short-circuit protected
0
25
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
36
48
75
Vdc
Recommended External Fuse
Fast blow
20
A
Start-up threshold
Rising input voltage
33
34
35
Vdc
Undervoltage shutdown
Falling input voltage
31
32
34
Vdc
Overvoltage protection
Rising input voltage
None
Vdc
Reverse Polarity Protection
None, install external fuse
None
Vdc
Internal Filter Type
Pi-type
Input current
Full Load Conditions
Vin = nominal
6.61
6.82
A
Low Line
Vin = minimum
8.82
9.09
A
Inrush Transient
Vin = 48V.
0.3
A2-Sec.
Output in Short Circuit
50
100
mA
No Load
Iout = minimum, unit=ON
150
250
mA
Standby Mode (Off, UV, OT)
5
10
mA
Reflected (back) ripple current ➁
Measured at input with specified filter
50
70
mA, RMS
Pre-biased startup
External output voltage < Vset
Monotonic
GENERAL and SAFETY
Efficiency
Vin=48V, full load
93.5
94.5
%
Vin=45.6V, full load
93.5
94.5
%
Isolation
Isolation Voltage, input to output
No baseplate
2250
Vdc
Isolation Voltage, input to output
With baseplate
2250
Vdc
Isolation Voltage, input to baseplate
With baseplate
1500
Vdc
Isolation Voltage, output to baseplate
With baseplate
1500
Vdc
Insulation Safety Rating
basic
Isolation Resistance
10
MΩ
Isolation Capacitance
1000
pF
Safety
Certified to UL-60950-1, CSA-C22.2 No.60950-1,
IEC/EN60950-1, 2nd edition
Yes
Calculated MTBF
Per MIL-HDBK-217F, ground benign,
Tambient=+TBD°C
TBD
Hours x 10³
Calculated MTBF
Per Telcordia SR-332, issue 1, class 3, ground
fixed, Tambient=+25°C
1500
Hours x 10³
DYNAMIC CHARACTERISTICS
Fixed Switching Frequency
260
KHz
Startup Time
Power On, to Vout regulation band,
100% resistive load
15
mS
Startup Time
Remote ON to Vout Regulated
15
mS
Dynamic Load Response
50-75-50% load step to 1% error band
550
825
μSec
Dynamic Load di/dt
0.1
A / μSec
Dynamic Load Peak Deviation
same as above
±500
±750
mV
FEATURES and OPTIONS
Remote On/Off Control ➃
“N” suffix:
Negative Logic, ON state
ON = pin grounded or external voltage
0
0.8
Vdc
Negative Logic, OFF state
OFF = pin open or external voltage
3.5
13.5
Vdc
Control Current
open collector/drain
1
2
mA
FEATURES and OPTIONS (cont.)
Conditions ➀
Minimum
Typical/Nominal
Maximum
Units
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09 Nov 2010 MDC_HPQ-12/25-D48 Series.A03 Page 4 of 12