Murata Power Solutions’ fully isolated HPH series of DC/DC converters affords users a
practical solution for their low-voltage/high-current applications. With an input voltage range of
36 to 75 Volts, the HPH Series delivers up to 70 Amps of output current from a fully regulated
3.3V output.
Typical unit
PRODUCT OVERVIEW
Using both surface-mount technology
and planar magnetics, these converters
are manufactured on a 2.3" x 2.4", lead-
free, open-frame package with an industry-
standard pinout.
HPH converters utilize a full-bridge,
fixed-frequency topology along with syn-
chronous output rectification to achieve a
high efficiency. This efficiency, coupled with
the open-frame package that allows unre-
stricted air flow, reduces internal component
temperatures thereby allowing operation at
elevated ambient temperatures.
These DC/DC’s provide output trim,
sense pins and primary side on/off con-
trol (available with positive or negative
logic). Standard features also include input
undervoltage shutdown circuitry, output
overvoltage protection, output short-circuit
and current limiting protection and ther-
mal shutdown. All devices meet IEC/UL/
EN60950-1 safety standards and carry the
CE mark (meet LVD requirements).
FEATURES
RoHS Compliant
3.3V to 12V outputs @ up to 70 Amps
Input range: 36V-75V
Open Frame: 2.3" x 2.4" x 0.40"
Industry-standard package/pinout
Remote sense, Trim, On/Off control
High efficiency: up to 91%
Fully isolated, 2250Vdc (BASIC)
Input undervoltage shutdown
Output overvoltage protection
Short circuit protection, thermal shutdown
Designed to meet UL/EN/IEC 60950-1, CAN/
CSA-C22.2 No. 60950-1 safety approvals
CE mark
Optional baseplate offers increased thermal
performance
SIMPLIFIED SCHEMATIC
+Vin
(4)
+SENSE
(6)
+Vout
(5)
SWITCH
CONTROL
-Vout
(9)
+Vin
(1)
PULSE
TRANSFORMER
Input undervoltage, input
overvoltage, and output
overvoltage comparators
-SENSE
(8)
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
Vout
TRIM
(7)
REMOTE
ON /OFF
CONTROL*
(3)
* Can be ordered with positive (standard) or negative (optional) polarity.
Typical topology is shown. Some models may vary slightly.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
MDC_HPH_A12
Page 1 of 12
HPH Series
Isolated, Low V
OUT
to 70A, Half-Brick DC/DC Converters
PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE
Output
V
OUT
(Volts)
I
OUT
(Amps,
Max.)
Power
(Watts)
R/N (mV pk-pk)
Typ.
Max.
Regulation (Max.)
Line
Load
V
IN
Nom.
(Volts)
Input
Efficiency
Root Model
M
Range
(Volts)
I
IN
, no
load
(mA)
I
IN
, full
load
(Amps)
Min.
Typ.
Package
(Case/
Pinout)
HPH-1.5/80-D48N-C
HPH-1.8/80-D48N-C
HPH-2.5/80-D48N-C
HPH-3.3/70-D48N-C
HPH-5/40-D48N-C
HPH-12/30-D48N-C
M
N
O
f
1.5
1.8
2.5
3.3
5
12
80
80
80
70
f
40
30
f
120
144
200
231
200
360
100
100
100
125
125
200
±0.25%
±0.25%
±0.25%
±0.25%
±0.05%
±0.1%
48
48
48
36-75
36-75
36-75
70
70
150
5.35
4.58
8.06
88%
90%
92%
90%
91%
93%
C61
C61
C61
P17
P17
P17
Please contact Murata Power Solutions for further information.
N
Please refer to the full model number structure for additional ordering part numbers and options.
Contact Murata Power Solutions for availability.
All specifications are at nominal line voltage and full load, +25ºC. unless otherwise noted. See detailed specifications.
Full power continuous output requires baseplate installation. Please refer to the derating curves.
PART NUMBER STRUCTURE
HPH
-
3.3
/
70
-
D48 N B
Unipolar
High-Power Series
Nominal Output Voltage
Maximum Output Current
in Amps
H LX
-
C
RoHS Hazardous Materials compliance
C
= RoHS-6 (no lead), standard
Y
= RoHS-5 (with lead), optional, special quantity order
Pin length option
Blank
= standard pin length 0.180 in. (4.6 mm)
L1
= 0.110 in. (2.79 mm)*
L2
= 0.145 in. (3.68 mm)*
*Special quantity order required
Conformal coating (optional)
Blank
= no coating, standard
H
= Coating added, optional, special quantity order
Baseplate (optional)
Blank
= No baseplate, standard
B
= Baseplate installed, optional quantity order
Note:
Some model combinations may not be
available. Contact Murata Power Solutions for
availability.
Input Voltage Range:
D48 = 36-75 Volts (48V nominal)
On/Off Control Polarity
N
= Negative polarity, standard
P
= Positive polarity, optional
Note: Because of the high currents, wire the appropriate input, output and common pins in parallel. Be sure to use adequate PC board etch. If not sufficient, install additional discrete wiring.
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
MDC_HPH_A12
Page 2 of 12
HPH Series
Isolated, Low V
OUT
to 70A, Half-Brick DC/DC Converters
INPUT CHARACTERISTICS
Model Family
Start-up
Un-
Input Current
1
threshold
dervolt-
Reflected
age
(back) Ripple Inrush Output
No
Low
Current
Shut-
Typ.
Tran- Short
12
Load Line
down
sient Circuit
mA
mA
A
V
V
mA pk-pk A
2
sec
Remote On/Off Control
6
Reverse
Internal
Polarity Current
Standby Input
Filter Type Protection
16
(Max.)
Mode
mA
mA
Positive Logic
“P” model suffix
OFF=Gnd. pin to
+1V Max.
ON=open pin or
+3.5 to +15V
Max.
Negative Logic
“N” model suffix
OFF=open pin or
+3.5V to +15V
Max.
ON=Gnd. pin to
+1V Max.
HPH-3.3/70-D48
35
33.5
20
0.1
50
70
7.13
1
2
HPH-5/40-D48
35
33.5
20
0.05
50
70
6.11
4
Pi-type
See notes
2
HPH-12/30-D48
34
32
60
0.3
50
150
10.8
4
2
OFF=Gnd. pin to
+1V Max.
ON=open pin or
+3.5 to +13.5V
Max.
OFF=open pin or
+3.5V to +13.5V
Max.
ON=Gnd. pin to
+1V Max.
OUTPUT CHARACTERISTICS
V
OUT
Accuracy
Model Family
50% Load
% of V
NOM
±1
±1
±1
% of
V
NOM
HPH-3.3/70-D48
HPH-5/40-D48
HPH-12/30-D48
±10
±10
±10
% of V
OUT
range/ºC
±0.02
±0.02
±0.02
Adjustment Temperature Capacitance Overvoltage
Range
8
Coefficient
Loading
Protection
10 15
Remote Sense
Compensation
11
Max.
% of V
OUT
+10
No
minimum
load
See ordering guide
Minimum
Loading
Ripple/
Noise
9
(20 MHz
bandwidth)
Line/Load Efficiency
Regulation
7
Over-
Voltage
Low ESR <0.02 Hiccup auto Protection
Max., resistive restart after Method
fault removal
load
μF
V
10,000
4
Magnetic
10,000
6
feedback
10,000
14.5
ISOLATION CHARACTERISTICS
Input to
Output
Min.
V
HPH-3.3/70-D48
HPH-5/40-D48
HPH-12/30-D48
See notes on page 4.
Model Family
Input
to baseplate
Min.
V
1500
Base-
plate
to output
Min.
V
1500
Isolation
Resistance
MΩ
100
Isolation
Capacitance
pF
2000
Isolation
Safety
Rating
2250
Basic
Insulation
Short Circuit
Short Circuit
Current
Protection
Method
98% of V
OUT
, after warmup
Continuous
A
A
84
12
Current
limiting,
45
TBD
hiccup
autorestart
37
TBD
Current Limit Inception
Soldering Guidelines
Murata Power Solutions recommends the specifications below when installing these converters. These specifications vary depending on the solder type. Exceeding these specifica-
tions may cause damage to the product. Be cautious when there is high atmospheric humidity. We strongly recommend a mild pre-bake (100° C. for 30 minutes). Your production
environment may differ; therefore please thoroughly review these guidelines with your process engineers.
Wave Solder Operations for through-hole mounted products (THMT)
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