HPQ-50-D48PH-Y [MURATA]
Isolated High Power Quarter Brick DC/DC Converters; 隔离型高功率1/4砖DC / DC转换器
| 型号： | HPQ-50-D48PH-Y |
| 厂家： | 
muRata |
| 描述： | Isolated High Power Quarter Brick DC/DC Converters |
| 文件： | 总10页 (文件大小：1094K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HPQ Series
Isolated High Power Quarter Brick DC/DC Converters
Typical unit
FEATURES
PRODUCT OVERVIEW
nꢀ
3.3 Volts DC fixed output up to 50 Amps
Unique among quarter-brick DC/DC con
HPQ series offers very high output curr
50 Amps) in an industry standard “quarter brick”
package requiring no heat sink. The HPQ series
delivers up to 165 Watts fixed voltage output for
printed circuit board mounting. Wide range inputs
on the 2.3" x 1.45" x 0.39" converter are 36 to 75
Volts DC (48 Volts nominal), ideal for datacom and
telecom systems. The fixed output voltage is regu-
lated to within 1ꢀ and may be trimmed within
10ꢀ of nominal output.
Advanced automated surface mount assembly
and planar magnetics deliver full magnetic and
optical isolation with Basic protection up to 2250
Volts. To power digital systems, the outputs offer
fast settling to current steps and tolerance of
higher capacitive loads. Excellent ripple and noise
ontrol may
Remote
Sense inputs compensate for resistive line drops at
high currents.
nꢀ
Industry standard quarter brick 2.3" x 1.45" x
0.39" open frame package
nꢀ
Wide range 36 to 75 Vdc input voltages with 2250
Volt Basic isolation
A wealth of self-protection features avoid prob-
lems with both the converter and external circuits.
These include input undervoltage lockout and
overtemperature shutdown using an on-board tem-
perature sensor. Excessive overcurrents limit their
power using the “hiccup” autorestart technique
and the outputs may be short-circuited indefinitely.
Additional safety features include output overvolt-
age protection and reverse conduction elimination.
The synchronous rectifier topology offers high effi-
ciency for minimal heat buildup and “no heat sink”
operation. The HPQ series is designed to meet full
safety certifications to UL/EN/IEC/CSA 60950-1 and
nꢀ
Double lead-free assembly and attachment for RoHS
standards
nꢀ
Up to 165 Watts total output power
nꢀ
High efficiency synchronous rectifier topology
nꢀ
Stable no-load operation with no required external
components
nꢀ
Operating temperature range -40 to +85° C. with
no heat sink required
nꢀ
Designed to meet UL/EN 60950-1, CSA-C22.2 No.
60950-1, safety approvals
specifications assure compatibility to CPU’s, ASIC’s, RFI/EMI conducted/radiated emission compliance
programmable logic and FPGA’s. No minimum load
is required. For systems needing controlled startup/
nꢀ
Extensive self-protection, current limiting and shut
down features
to FCC part 15 class B.
APPLICATIONS
nꢀ
Embedded systems, datacom and telecom
nꢀ
Instrumentation systems, R&D platforms, auto-
installations
mated test fixtures
nꢀ
nꢀ
Disk farms, data centers and cellular repeater sites
Data concentrators, voice forwarding and
speech processing systems
nꢀ
Remote sensor systems, dedicated controllers
+SENSE
(7)
+VIN
(3)
+VOUT
(8)
SWITCH
CONTROL
−VOUT
(4)
–VIN
(1)
−SENSE
(5)
INPUT UNDERVOLTAGE, INPUT
OVERVOLTAGE, AND OUTPUT
OVERVOLTAGE COMPARATORS
PULSE
TRANSFORMER
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
VOUT TRIM
(6)
REMOTE
ON/OFF
CONTROL
(2)
Figure 1. Simplified Schematic
Typical topology is shown
For full details go to
www.murata-ps.com/rohs
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MDC_HPQ Series.A05 Page 1 of 10
HPQ Series
Isolated High Power Quarter Brick DC/DC Converters
ORDERING GUIDE ➀
Output
R/N (mV
pk-pk)
Input
Regulation
(Max.) ➁
Efficiency
Package
Dimensions
(mm)
Io u t
Iin full
load
Vo u t (Amps, Power
Vin Nom. Range
Iin no
Dimensions
(inches)
(Volts) max.) (Watts) Typ. Max. Line Load (Volts) (Volts) load (mA) (Amps) Min. Typ.
Pinout
Root Model ➀
HPQ-3.3/50-D48N-C 3.3
50
165
50
100
0.2ꢀ 0.2ꢀ
48
36-75
80
3.82
88ꢀ 90ꢀ 1.45x2.3x0.39 36.8x58.4x9.9
P32
➀ Please refer to the part number structure for additional ordering information and options.
➁ All specifications are at nominal line voltage and full load, +25 deg.C. unless otherwise noted. See detailed specifications. Output capacitors are 1 µF ceramic || 10 µF electrolytic with no input caps.These
caps are necessary for our test equipment and may not be needed for your application.
MECHANICAL SPECIFICATIONS
1.860 (47.2)
A
Dimensions are in inches (mm shown for ref. only).
Third Angle Projection
1.00
1.45
(25.4)
(36.8)
Screw length
must not
go through
baseplate.
Tolerances (unless otherwise specified):
.XX ꢀ.ꢀ0 (ꢀ.ꢁ)
.XXX ꢀ.ꢀꢂꢀ (ꢀ.0ꢁ)
Angles 02
Components are shown for reference only.
BASEPLATE
#M3-THREAD X 0.15 DEEP
TYPICAL (4) PLACES
Optional baseplate
0.50 (12.7)
With Baseplate
0.40 (10.2)
Without Baseplate
0.015 (0.4)
min. clearance
between highest
component and
pin shoulders
0.18
(4.6)
PINS 1-3, 5-7: 0.040 0.001 (1.016 0.025)
PINS 4 & 8: 0.060 0.001 (1.52 0.025)
Component locations
are typical and may
I/O Connections (pin side view)
Pin
1
Function P32
Neg. Input
Pin
5
Function P32
Neg. Sense
Output Trim
Pos. Sense
Pos. Output
vary between models.
2.30 (58.4)
2.00 (50.8)
A
A
2
Remote On/Off Control
Pos. Input
6
3
7
4
Neg. Output
8
1
2
3
4
Important! Always connect the sense pins. If they are not
connected to a remote load, wire each sense pin to its
respective voltage output at the converter pins.
5
6
7
8
0.600 (15.2)
4 EQ. SP.
@ 0.150 (3.8)
1.30
(33.0)
Optional mounting
holes, 4 places
2.15 (54.6)
BOTTOM VIEW
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MDC_HPQ Series.A05 Page 2 of 10
HPQ Series
Isolated High Power Quarter Brick DC/DC Converters
PART NUMBER STRUCTURE
HPQ - 3.3 / 50 D48 N B H - C
-
RoHS Hazardous Materials compliance
C = RoHS-6 (no lead), standard
Y = RoHS-5 (with lead), optional, special quantity order
Family
Series:
High Power
Quarter Brick
Conformal coating (optional)
Blank = no coating, standard
Nominal Output Voltage
H = Coating added, optional, special quantity order
Baseplate (optional)
Blank = No baseplate, standard
B = Baseplate installed, optional quantity order
Maximum Rated Output :
Current in Amps
Input Voltage Range:
D48 = 36-75 Volts (48V nominal)
On/Off Control Polarity
Note: Some model combinations may not be
available. Contact Murata Power Solutions for
availability.
N = Negative polarity, standard
P = Positive polarity, optional
Performance and Functional Specifications
All specifications are typical unless noted. See Note 1.
Input
Input Voltage Range
See Ordering Guide.
Recommended External Fuse
Start-Up Voltage
10 Amps
33.0 Volts
Undervoltage Shutdown
Overvoltage Shutdown
Reflected (Back) Ripple Current (Note 2)
Internal Input Filter Type
Reverse Polarity Protection (Note 15)
Input Current:
32.0 Volts
None, see application notes.
20 mA pk-pk
Pi-type
See fuse information
Full Load Conditions
See Ordering Guide.
0.05 A2Sec.
10 mA
Inrush Transient
Shutdown Mode (Off, UV, OT)
Output Short Circuit
50 mA
No Load, 3.3Vout
80 mA
Low Line (Vin=Vmin, 3.3Vout)
Remote On/Off Control (Note 5)
5.21 Amps
ON = +2.5 V. to +15 V. max. or open pin
OFF = 0 to +1 V. max. or ground pin
Positive Logic (“P” suffix)
ON = -0.1 V. to +0.8 V. max. or ground pin
OFF = +2.5 V. to +15 V. max. or open pin
Negative Logic (“N” suffix)
Current
1 mA
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MDC_HPQ Series.A05 Page 3 of 10
HPQ Series
Isolated High Power Quarter Brick DC/DC Converters
Output
Minimum Loading
No minimum load
166.6 Watts
Maximum Output Power
Accuracy (50ꢀ load)
1 ꢀ of Vsetting. See note 16.
4 Volts
Overvoltage Protection (Note 7)
Temperature Coefficient
Ripple/Noise (20 MHz bandwidth)
Line/Load Regulation (See Tech. Notes)
Efficiency
0.02ꢀ per °C. of Vout range
See Ordering Guide and note 8.
See Ordering Guide and note 10.
See Ordering Guide
Remote Sense Compensation
Maximum Capacitive Loading, low ESR
Current Limit Inception (98ꢀ of Vout setting)
Short Circuit Mode (Notes 6, 12)
Short Circuit Current Output
Protection Method
+10ꢀ max. deviation from output
10,000 µF max. See note 11.
59 Amps (after warm up) See note 12.
5 Amps
Hiccup autorecovery upon overload removal. (See note 12)
Continuous, no damage (output shorted to ground)
Short Circuit Duration
Isolation
Isolation Voltage
Input to Output
2250 Vdc min.
1500 Vdc min.
1500 Vdc min.
10 Megohms
1000 pF
Input to Baseplate
Baseplate to Output
Isolation Resistance
Isolation Capacitance
Isolation Safety Rating
Dynamic Characteristics
Dynamic Load Response
Turn-On Time
Basic insulation
200 µSec to within 1ꢀ of final value. (50-75-50ꢀ load step)
10 mSec for Vout regulated
Remote On/Off Time
10 mSec for Vout regulated
Switching Frequency
400 40 ꢁHz
Environmental
Calculated MTBF (Note 4)
Operating Temperature Range
Storage Temperature Range
TBC
-40 to +85 °C (with derating)
-55 to +125 °C
Thermal Protection/Shutdown
(Case temp. is measured in the center)
+115 °C
Relative Humidity
Physical
85ꢀ/+85 °C
Outline Dimensions
Weight
See Mechanical Specifications
1.06 ounces (30 grams)
Electromagnetic Interference
(may require external filter)
FCC Part 15, EN55022, Class B, conducted and radiated
UL/cUL 60950-1
CSA-C22.2 No. 60950-1
IEC/EN 60950-1
Safety (designed to meet)
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MDC_HPQ Series.A05 Page 4 of 10
HPQ Series
Isolated High Power Quarter Brick DC/DC Converters
Absolute Maximum Ratings
Input Voltage
Continuous or transient
Output Power
75 Volts max.
166.6 Watts max.
0V. min. to +15 V. max.
See Fuse section
On/Off Control
Input Reverse Polarity Protection
Current-limited.
Devices can withstand sustained short circuit without damage.
Output Current
Storage Temperature
Lead Temperature
-55 to +125 °C
+280 °C, 10 seconds max
Absolute maximums are stress ratings. Exposure of devices to any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Func-
tional Specifications Table is not implied nor recommended.
CAUTION: This product is not internally fused. To comply with safety agency certifications and to avoid injury to personnel or equipment, the user must supply an external fast-blow fuse to the input terminals. See
fuse information.
Specification Notes
(1) All models are tested and specified with external 1||10 µF output capacitors and no external input capacitor. All capacitors are low ESR types. These capacitors are necessary to accommodate our test equipment
and may not be required to achieve specified performance in your applications. All models are stable and regulate within spec under no-load conditions.
All specifications are typical unless noted. General conditions for Specifications are +25 °C, Vin=nominal, Vout=nominal, full load. Adequate airflow must be supplied for extended testing under power.
(2) Reflected Input Ripple Current is tested and specified over a 5 Hz to 20 MHz bandwidth. Input filtering is Cin=33 µF, 100V, Cbus=220 µF, 100V electrolytic, Lbus=12 µH.
(3) Note that Maximum Power Derating curves indicate an average current at nominal input voltage. At higher temperatures and/or lower airflow, the DC/DC converter will tolerate brief full current outputs if the total
RMS current over time does not exceed the Derating curve. All Derating curves are presented at sea level altitude. Be aware of reduced power dissipation with increasing density altitude.
(4) Mean Time Before Failure is calculated using the Telcordia (Belcore) SR-332 Method 1, Case 3, ground fixed conditions, Tpcboard=+25 °C, full output load, natural air convection.
(5) The On/Off Control is normally controlled by a switch, relay or open collector or open drain transistor. But it may also be driven with external logic or by applying appropriate external voltages which are refer-
enced to Input Common.
(6) Short circuit shutdown begins when the output voltage degrades approximately 2% from the selected setting.
(7) The outputs are not intended to sink appreciable reverse current. This may damage the outputs.
(8) Output noise may be further reduced by adding an external filter. See I/O Filtering and Noise Reduction.
(9) All models are fully operational and meet published specifications, including “cold start” at –40 °C. Maximum power requires that the package temperature of all on-board components must never exceed +128°C.
(10) Regulation specifications describe the deviation as the line input voltage or output load current is varied from a nominal midpoint value to either extreme.
(11) The converter is normally specified with the Input/Output filtering listed in Note 1. Higher capacitive load will reduce noise but at the expense of delayed settling time, extended turn-on time and slower transient
response. Use only as much output filtering as needed and no more. Thoroughly test your system under full load with all components installed. Low ESR capacitors with high capacitance may degrade dynamic
performance.
(12) “Hiccup” overcurrent operation repeatedly attempts to restart the converter with a brief, full-current output. If the overcurrent condition still exists, the restart current will be removed and then tried again. This short
current repeating pulse prevents overheating and damaging the converter. Output current limit and short circuit protection is non-latching. Once the fault is removed, the converter immediately recovers normal
operation.
(13) Do not exceed maximum power specifications when adjusting the output trim.
(14) At zero output current, the output may contain low frequency components which exceed the ripple specification. The output may be operated indefinitely with no load.
(15) Input Fusing: If reverse polarity is accidentally applied to the input, a body diode will become forward biased and will conduct considerable current. To ensure reverse input protection, always connect an external
input fast-blow fuse in series with the +Vin input. Use approximately twice the full input current rating with nominal input voltage.
(16) Output accuracy is dependent on user-supplied trim resistors. To achieve high accuracy, use 1% or better tolerance metal-film resistors.
(17.) Always connect the sense pins. If they are not connected to a remote load, wire each sense pin to its respective voltage output at the converter pins.
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MDC_HPQ Series.A05 Page 5 of 10
HPQ Series
Isolated High Power Quarter Brick DC/DC Converters
ductor capacitors (www.sanyo.com) can be especially effective for further
reduction of ripple/noise.
Technical Notes
Removal of Soldered Converters from Printed Circuit Boards
The most effective combination of external I/O capacitors will be a function of
line voltage and source impedance, as well as particular load and layout condi-
tions. Our Applications Engineers can recommend potential solutions.
Should removal of the converter from its soldered connection be needed,
thoroughly de-solder the pins using solder wicks or de-soldering tools. At no
time should any prying or leverage be used to remove boards that have not
been properly de-soldered first.
Start-Up Threshold and Undervoltage Shutdown
Under normal start-up conditions, these converters will not begin to regulate
properly until the ramping input voltage exceeds the Start-Up Threshold. Once
operating, devices will turn off when the applied voltage drops below the Und-
ervoltage Shutdown point. Devices will remain off as long as the undervoltage
condition continues. Units will automatically re-start when the applied voltage
is brought back above the Start-Up Threshold. The hysteresis built into this
function avoids an indeterminate on/off condition at a single input voltage. See
Performance/Functional Specifications table for actual limits.
Input Source Impedance
These converters must be driven from a low ac-impedance input source. The
DC/DC’s performance and stability can be compromised by the use of highly
inductive source impedances. The input circuit shown in Figure 2 is a practical
solution that can be used to minimize the effects of inductance in the input
traces. For optimum performance, components should be mounted close to the
DC/DC converter.
I/O Filtering, Input Ripple Current, and Output Noise
Start-Up Time
All models in this Series are tested/specified for input ripple current (also called
input reflected ripple current) and output noise using the circuits and layout
shown in Figures 2 and 3. External input capacitors (CIN in Figure 2) serve
primarily as energy-storage elements.
The VIN to VOUT Start-Up Time is the interval between the point at which a ramp-
ing input voltage crosses the Start-Up Threshold voltage and the point at which
the fully loaded output voltage enters and remains within its specified accuracy
band. Actual measured times will vary with input source impedance, external
input capacitance, and the slew rate and final value of the input voltage as it
appears to the converter. The On/Off to VOUT start-up time assumes that the
converter is turned off via the Remote On/Off Control with the nominal input
voltage already applied.
They should be selected for bulk capacitance (at appropriate frequencies), low
ESR, and high rms-ripple-current ratings. The switching nature of
DC/DC converters requires that dc voltage sources have low ac impedance as
highly inductive source impedance can affect system stability. In Figure 2, CBUS
and LBUS simulate a typical dc voltage bus. Your specific system configuration
may necessitate additional considerations.
On/Off Control
The primary-side, Remote On/Off Control function can be specified to operate
with either positive or negative polarity. Positive-polarity devices ("P" suffix)
are enabled when the on/off pin is left open or is pulled high. Positive-polarity
devices are disabled when the on/off pin is pulled low (with respect to –Input).
Negative-polarity devices are off when the on/off pin is high and on when the
on/off pin is pulled low. See Figure 4.
In critical applications, output ripple/noise (also referred to as periodic and ran-
dom deviations or PARD) can be reduced below specified limits using filtering
techniques, the simplest of which is the installation of additional external out-
put capacitors. Output capacitors function as true filter elements and should be
selected for bulk capacitance, low ESR, and appropriate frequency response.
In Figure 3, the two copper strips simulate real-world pcb impedances between
the power supply and its load. Scope measurements should be made using
BNC connectors or the probe ground should be less than ½ inch and soldered
directly to the fixture.
Dynamic control of the remote on/off function is best accomplished with a me-
chanical relay or an open-collector/open-drain drive circuit (optically isolated if
appropriate). The drive circuit should be able to sink appropriate current (see
Performance Specifications) when activated and withstand appropriate voltage
when deactivated.
All external capacitors should have appropriate voltage ratings and be located
as close to the converter as possible. Temperature variations for all relevant
parameters should be taken into consideration. OS-CONTM organic semicon-
7
COPPER STRIP
+SENSE
8
+OUTPUT
TO
CURRENT
PROBE
OSCILLOSCOPE
R
LOAD
SCOPE
C1
C2
3
1
+INPUT
–INPUT
4
5
LBUS
+
–OUTPUT
–SENSE
VIN
CBUS
CIN
COPPER STRIP
–
C1 = 1µF CERAMIC
C2 = 10µF TANTALUM
See specs for component values.
LOAD 2-3 INCHES (51-76mm) FROM MODULE
Figure 2. Measuring Input Ripple Current
Figure 3. Measuring Output Ripple/Noise (PARD)
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MDC_HPQ Series.A05 Page 6 of 10
HPQ Series
Isolated High Power Quarter Brick DC/DC Converters
Sense Input
temperature (See Performance Specifications), a precision temperature sensor
will power down the unit. When the internal temperature decreases below the
threshold of the temperature sensor, the unit will self start.
Note: The sense and Vo u t lines are internally connected through low-value re-
sistors. Nevertheless, if sense is not used for remote regulation, the user must
connect + sense to + Vo u t and -sense to -Vo u t at the converter pins. Sense is
intended to correct small output accuracy errors caused by the resistive ohmic
drop in output wiring as output current increases. This output drop (the differ-
ence between Sense and VOUT when measured at the converter) should not be
allowed to exceed 0.5V.
Output Overvoltage Protection
The output voltage is monitored for an overvoltage condition via magnetic coupling
to the primary side. If the output voltage rises to a fault condition, which could be
damaging to the load circuitry (see Performance Specifications), the sensing cir-
cuitry will power down the PWM controller causing the output voltage to decrease.
Following a time-out period the PWM will restart, causing the output voltage to
ramp to its appropriate value. If the fault condition persists, and the output volt-
ages again climb to excessive levels, the overvoltage circuitry will initiate another
shutdown cycle. This on/off cycling is referred to as “hiccup” mode.
Sense is connected at the load and corrects for resistive errors only. Be careful
where it is connected. Any long, distributed wiring and/or significant inductance
introduced into the Sense control loop can adversely affect overall system stabil-
ity. If in doubt, test the application, and observe the DC/DC’s output transient
response during step loads. There should be no appreciable ringing or oscilla-
tion. You may also adjust the output trim slightly to compensate for voltage loss
in any external filter elements. Do not exceed maximum power ratings.
Input Reverse-Polarity Protection
If the input-voltage polarity is accidentally reversed, an internal diode will be-
come forward biased and likely draw excessive current from the power source.
If the source is not current limited or the circuit appropriately fused, it could
cause permanent damage to the converter.
Current Limiting
When power demands from the output falls within the current limit inception
range for the rated output current, the DC/DC converter will go into a current
limiting mode. In this condition the output voltage will decrease proportionately
with increases in output current, thereby maintaining a somewhat constant power
dissipation. This is commonly referred to as power limiting. Current limit inception
is defined as the point where the full-power output voltage falls below the specified
tolerance. If the load current being drawn from the converter is significant enough,
the unit will go into a short circuit condition. See “Short Circuit Condition.”
Input Fusing
Certain applications and/or safety agencies may require the installation of
fuses at the inputs of power conversion components. Fuses should also be
used if the possibility of a sustained, non-current-limited, input-voltage polarity
reversal exists. For these converters, slow-blow fuses are recommended with
values no greater than twice the maximum input current.
Short Circuit Condition
Trimming Output Voltage
When a converter is in current limit mode the output voltages will drop as the
output current demand increases. If the output voltage drops too low, the mag-
netically coupled voltage used to develop primary side voltages will also drop,
thereby shutting down the PWM controller. Following the specified time-out
period, the PWM will restart, causing the output voltages to begin ramping to their
appropriate values. If the short-circuit condition persists, another shutdown
cycle will be initiated. This on/off cycling is referred to as “hiccup” mode. The
hiccup cycling reduces the average output current, thereby preventing internal
temperatures from rising to excessive levels. This converter is capable of
enduring an indefinite short circuit output condition.
These converters have a trim capability that enables users to adjust the output
voltage over a limited range (refer to the trim equations). Adjustments to the out-
put voltage can be accomplished with a single fixed resistor as shown in Figures
5 and 6. A single fixed resistor can increase or decrease the output voltage
depending on its connection. Resistors should be located close to the converter
and have TCR’s less than 100ppm/°C to minimize sensitivity to changes in
temperature. If the trim function is not used, leave the trim pin open.
Standard units have a “positive trim” where a single resistor connected from
the Trim pin to the +Sense will increase the output voltage. A resistor con-
nected from the Trim Pin to the –Sense will decrease the output voltage.
Thermal Shutdown
Trim adjustments greater than the specified trim range can have an adverse
affect on the converter’s performance and are not recommended. Excessive
voltage differences between VOUT and Sense, in conjunction with trim adjust-
ment of the output voltage, can cause the overvoltage protection circuitry to
activate (see Performance Specifications for overvoltage limits).
These converters are equipped with thermal-shutdown circuitry. If the internal
temperature of the DC/DC converter rises above the designed operating
%15)6!,%.4 #)2#5)4 &/2
0/3)4)6% !.$ .%'!4)6%
,/')# -/$%,3
ꢃꢄ6
ꢃ).054
ꢂ
ꢀ
Temperature/power derating is based on maximum output current and voltage
at the converter’s output pins. Use of the trim and sense functions can cause
output voltages to increase, thereby increasing output power beyond the
converter’s specified rating, or cause output voltages to climb into the output
overvoltage region. Therefore:
/.ꢅ/&&
#/.42/,
#/.42/,
(VOUT at pins) x (IOUT) ≤ rated output power
2%&
ꢁ
n).054
#/--/.
The Trim pin is a relatively high impedance node that can be susceptible to
noise pickup when connected to long conductors in noisy environments.
Figure 4. Driving the Remote On/Off Control Pin
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MDC_HPQ Series.A05 Page 7 of 10
HPQ Series
Isolated High Power Quarter Brick DC/DC Converters
8
1
+OUTPUT
–INPUT
8
7
6
5
4
1
2
+OUTPUT
+SENSE
TRIM
–INPUT
7
+SENSE
2
3
6
5
4
ON/OFF
CONTROL
TRIM
–SENSE
LOAD
ON/OFF
CONTROL
LOAD
RTRIM DOWN
RTRIM UP
–SENSE
–OUTPUT
+INPUT
3
–OUTPUT
+INPUT
Figure 6.Trim Connections To Decrease Output Voltages Using Fixed Resistors
Figure 5.Trim Connections To Increase Output Voltages Using Fixed Resistors
Trim Up
Trim Down
HPQ-3.3/50-D48
16.863(1+∆)
5.11
5.11
–
–10.22
–10.22
RTUP (k7) =
RTDOWN (k7) =
1.225x∆
∆
∆
where ∆ is the absolute value of
( 3.3 - VOUT
)
3.3
(∆ is always positive)
TYPICAL PERFORMANCE CURVES
HPQ-3.3/50-D48
Efficiency vs Line Voltage and Load Current @ +25°C
HPQ-3.3/50-D48
Maximum Current Temperature Derating
(Vin=48V, no baseplate, longitudinal air flow)
95
90
85
80
75
70
65
24
50
22
45
20
18
40
V
V
V
IN = 75 V
IN = 48 V
IN = 36 V
16
35
100 LFM
200 LFM
300 LFM
400 LFM
14
12
30
10
8
6
4
2
25
20
15
10
Power Dissipation
IN = 48 V
V
5
10
15
20
25
30
35
40
45
50
Load Current (Amps)
30
40
50
60
70
80
Ambient Temperature (°C)
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_HPQ Series.A05 Page 8 of 10
HPQ Series
Isolated High Power Quarter Brick DC/DC Converters
Transient Response
Transient Response (25% Load Step)
Enable Start-up
Transient Response (50% Load Step)
Enable Start-up (Vin=48V Iout=50A)
Enable Start-up (Vin=48V Iout=0A)
Ripple and Noise (1uF Ceramic plus 10uF Tantalum)
Ripple Waveform (Vin=48V Iout=50A)
Ripple Waveform (Vin=48V Iout=0A)
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_HPQ Series.A05 Page 9 of 10
HPQ Series
Isolated High Power Quarter Brick DC/DC Converters
USA:
Mansfield (MA), Tel: (508) 339-3000, email: sales@murata-ps.com
Toronto, Tel: (866) 740-1232, email: toronto@murata-ps.com
Canada:
UK:
Milton ꢁeynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com
Montigny Le Bretonneux,Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com
München, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com
Murata Power Solutions, Inc.
France:
Germany:
Japan:
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
www.murata-ps.com email: sales@murata-ps.com ISO 9001 REGISTERED
Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com
Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com
06/02/08
08/19/08
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
China:
Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com
Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com
notice.
© 2008 Murata Power Solutions, Inc.
Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_HPQ Series.A05 Page 10 of 10
相关型号：
HPQ-8.3/22-D48N-C
DC-DC Regulated Power Supply Module, 1 Output, 182.6W, Hybrid, ROHS COMPLIANT PACKAGE-8
MURATA
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