voltage protection, output short-circuit and current
limiting protection and thermal shutdown. All
devices meet IEC/UL/EN60950-1 safety standards
and carry the CE mark (meet LVD requirements).
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_A15
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
1
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
1.5
1.8
2.5
3.3
5
12
80
80
80
70
40
30
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.
2
1
Please refer to the full model number structure for additional ordering part numbers and options.
2
Contact Murata Power Solutions for availability.
3
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, does not claim EU exemption 7b – lead in solder
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.
On/Off Enable Control Ground Bounce Protection
To improve reliability, if you use a small signal transistor or other external
circuit to select the Remote On/Off control, make sure to return the LO side
directly to the –Vin power input on the DC/DC converter. To avoid ground
bounce errors, do not connect the On/Off return to a distant ground plane or
current-carrying bus. If necessary, run a separate small return wire directly to
the –Vin terminal. There is very little current (typically 1-5 mA) on the On/Off
control however, large current changes on a return ground plane or ground bus
can accidentally trigger the converter on or off. If possible, mount the On/Off
transistor or other control circuit adjacent to the converter.
DC/DC Converter
Preferred location
of On/Off control
adjacent to -Vin
terminal
+ Vin
On/Off Enable
On/Off
Control
Transistor
-Vin return
Ground plane or power return bus
Do not connect
control transistor
through remote
power bus
Install separate
return wire for
On/Off control
with remote
transistor
Figure 1 – On/Off Enable Control Ground Bounce Protection
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
MDC_HPH_A15
Page 2 of 12
HPH Series
Isolated, Low V
OUT
to 70A, Half-Brick DC/DC Converters
MECHANICAL SPECIFICATIONS
2.30
(58.4)
A
User’s thermal surface and hardware
Recommended threaded insert torque
is 0.35-0.55 N-M or 3-5 in-lbs.
0.50
(12.7)
0.015 min. clearance
between standoffs and
highest component
Pin Diameters:
Pins 1-4, 6-8
Pins 5, 9
0.20
(5.1)
2.30 (58.4)
1.90 (48.3)
B
1
9
M3 x 0.50
threaded insert
and standoff (4 places)
Screw length must
not go through Baseplate
2.00
(50.8)
2.40
(61.0)
0.015 minimum
clearance between
standoffs and
highest component
Do not remove
M3 x 0.50
threaded inserts
from bottom PCB
Baseplate
0.40
(10.2)
0.18
(4.6)
A
0.040 ± 0.001 (1.016 ±0.025)
0.080 ± 0.001 (2.032 ±0.025)
0.18
(4.6)
1.900
(48.26)
2
8
Case C61
7
3
6
0.400
(10.16)
4
5
0.50
(12.70)
Bottom View
B
0.700
(17.78)
1.000
(25.40)
1.400
(35.56)
2.40
(60.96)
HPH with Optional Baseplate
Dimensions are in inches (mm) shown for ref. only.
Third Angle Projection
INPUT/OUTPUT CONNECTIONS
Pin
Function P17
1
−Input
2
Case*
3
On/Off Control
4
+Input
5
+Output
6
+Sense
7
Trim
8
−Sense
9
−Output
Pin 2 may be removed under special order.
Please contact Murata Power Solutions.
Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 2˚
Components are shown for reference only.
Since there is some pinout inconsistency between manufacturers of half brick converters, be sure
to follow the pin function, not the pin number, when laying out your board.
* Note that the “case” connects to the baseplate (when installed). This case connection is isolated
from the rest of the converter. Pin 2 may be deleted under special order. Please contact Murata
Power Solutions for information.
The Trim connection may be left open and the converter will achieve its rated output voltage.
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
MDC_HPH_A15
Page 3 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
Internal
Reverse
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 +13.5V
Max.
Negative Logic
“N” model suffix
OFF=open pin or
+3.5V to +13.5V
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
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
% of
V
NOM
% of V
OUT
range/ºC
±0.02
±0.02
±0.02
HPH-3.3/70-D48
HPH-5/40-D48
HPH-12/30-D48
±10
±10
±10
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 5.
Model Family
Input
to baseplate
Min.
V
1500
Baseplate
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
Continuous
98% of V
OUT
, after warmup
A
A
12
84
Current
limiting,
45
hiccup
17
hiccup
autorestart
37
6.6
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. Your production environment may differ; therefore please thoroughly review these guidelines with your process engineers.
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