Wall MPQ48S24-85CRHS Up to 125 watts, quarter-brick dc/dc converter Datasheet

MPQ SERIES
Up to 125 Watts, Quarter-Brick DC/DC Converters
Rev D
Wall Industries, Inc.
FEATURES
Size (with Case):
2.37 x 1.54 x 0.60 inches
• Quarter-Brick Package
• 24VDC and 48VDC Nominal Inputs
• 100% Burned-in
• Ultra High Efficiency 92% at 5VDC (20A)
• Up to 125 Watts Output Power
• Remote ON/OFF (Active High or Active Low)
• Water Washable
• Industry Standard Output Trim Adjust
• Single Outputs
• Short Circuit, Over Current, Over Voltage, and Over
• No Minimum Load Required
Temperature Protection
• Superior Thermal Performance
• Low Cost Open Convection, Single Board
• Fast Transient Response
• Fixed Switching Frequency
Construction
• Open Frame, Case, and Heatsink Options
DESCRIPTION
Size (Open Frame):
2.28 x 1.45 x 0.43 inches
The MPQ series of single output DC/DC converters provides up to 125 watts in a quarter-brick
package. The MPQ series is well suited for telecom and datacom applications where high
efficiencies are required. Some features include active high or active low remote on/off, fixed
switching frequency, low output ripple, and ±10% output trim. These converters also have
over voltage, short circuit, over current, and over temperature protection. These high density,
low voltage input, quarter-brick converters offer great performance and high reliability at a
very competitive price.
MODEL SELECTION TABLE
Model Number (1)
Nominal
Input Voltage
Input Voltage Range
Output Voltage
Output Current
Ripple & Noise
Output Power
Efficiency
MPQ24S3.3-50C
9 – 36 VDC
3.3 VDC
15.2 A
100mVp-p
50W
85%
MPQ24S3.3-66C
10 – 36 VDC
3.3 VDC
20A
150mVp-p
66W
87%
MPQ24S3.3-85C
18 – 36 VDC
3.3 VDC
25A
150mVp-p
83W
88%
MPQ24S5-50C
10 – 36 VDC
5 VDC
10A
82mVp-p
50W
87%
MPQ24S5-100C
24 VDC
10 – 24 VDC
5 VDC
20A
175mVp-p
100W
87%
MPQ24S5-125C
18 – 36 VDC
5 VDC
25A
175mVp-p
125W
87%
MPQ24S15-50C
10 – 36 VDC
15 VDC
4A
65mVp-p
60W
88%
MPQ24S24-50C
10 – 36 VDC
24 VDC
2.5A
150mVp-p
60W
88%
MPQ24S48-50C
10 – 36 VDC
48 VDC
1A
104mVp-p
48W
87%
MPQ48S3.3-66
36 – 75 VDC
3.3 VDC
20A
150mVp-p
66W
90%
MPQ48S3.3-85
36 – 75 VDC
3.3 VDC
25A
150mVpp
83W
88%
36 – 75 VDC
5 VDC
20A
175mVp-p
100W
92%
36 – 75 VDC
5 VDC
25A
175mVp-p
125W
90%
MPQ48S12-120
36 – 75 VDC
12 VDC
10A
100mVp-p
120W
90%
MPQ48S24-100
36 – 75 VDC
24 VDC
4.16A
100mVp-p
100W
91%
MPQ48S5-100
MPQ48S5-125
48 VDC
NOTES
1. All 24 VDC input models must have a case. 48 VDC input models can either be open frame (no suffix) or have a case (“C” suffix). Both 24Vin and 48Vin
models are heatsink compatible.
2. A heatsink can be applied for an extended temperature range. For heatsink, add the suffix “HS” to the model number.
3. Remote ON/OFF is primary referenced. Active High is standard; for Active Low add the suffix “R” to the model number.
4 Al DC/DC converters should be externally fused on the input side. Please consult factory for more information.
02/15/2013
Wall Industries, Inc. • 5 Watson Brook Road, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797
website: www.wallindustries.com • e-mail: [email protected]
Page 1 of 7
Rev D
Wall Industries, Inc.
MPQ SERIES
Up to 125 Watts, Quarter-Brick DC/DC Converters
SPECIFICATIONS: MPQ SERIES
All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
TEST CONDITIONS
Min
Typ
Max
Unit
INPUT SPECIFICATIONS
Input Voltage Range
UVLO Turn On at
UVLO Turn Off at
Input Surge Voltage
External Filter Requirements
10-36 VDC Input Voltage Models
36-75 VDC Input Voltage Models
10-36 VDC Input Voltage Models
36-75 VDC Input Voltage Models
100ms
9.8
±Sense shorted to ±Vout
-1
-10
-0.2
-0.2
See Table
10.0
10.3
35.0
9.7
9.9
34.0
50
none
9.4
VDC
VDC
VDC
OUTPUT SPECIFICATIONS
Output Voltage
Output Voltage Set Point
Trim
Line Regulation
Load Regulation
Output Power
Output Current
Minimum Load
Ripple & Noise
Remote Sense Compensation
Temperature Coefficient
±Sense shorted to ±Vout
±Sense shorted to ±Vout
See Table
+1
+10
+0.2
+0.2
See Table
See Table
0
%
%
%
%
%
See Table
+10
+0.02
Measured at the converter output pins
-0.02
MONOTONIC START-UP ACROSS ALL LOAD RANGES. CAPABLE OF STARTING INTO PRE-BIASED LOADS
%
%/°C
PROTECTION
Short Circuit Protection
Over Voltage Protection
Current Limit Inception
Thermal Shutdown
PCB Temperature
Continuous pulse-to-pulse (low power dissipation, auto-recovery)
130
% Vo
130
% Vo
+110
+125
°C
REMOTE ON/OFF
Active High (Standard)
Active Low (“R” Suffix)
Remote ON/OFF Pin Floating
ION/OFF Sink to Pull Low
Remote ON
Remote OFF
Remote ON
Remote OFF
Active High
Active Low
Active High
Active Low
ION/OFF Source to Drive High
Min High to Enable
Max Low to Disable
Max Low to Disable
Min High to Enable
Over operating voltage range
1.5
0.3
0.8
2.1
1.6
2.3
5.2
6.2
0.15
0.6
VON/OFF =0V, Vin=75V
Active High or Active Low
VDC
VDC
VDC
mA
0
mA
200
330
kHz
GENERAL SPECIFICATIONS
Efficiency
Switching frequency
Isolation Voltage
24Vin Models
48Vin Models
Input - Output
Input – Chassis
Output - Chassis
Isolation Resistance
Isolation Capacitance
For 1 minute
For 1 minute
At 25°C
1000
1000
1000
20
VDC
0.01
GΩ
µF
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature
Storage Temperature
Cooling
MTBF
Semiconductor junction temperature limit
Calculated using Bellcore TR-332 Method 1 case 3
-40
-55
+25
+125
+125
Free air convection
1,250,300 hours min.
°C
°C
PHYSICAL SPECIFICATIONS
Weight
Dimensions (L x W x H)
02/15/2013
Open Frame (for 48Vin models only)
With Case (Add the suffix “C” to the model number)
With Heatsink (Add the suffix “HS” to the model number)
2.15oz (61g)
2.28 x 1.45 x 0.43 in (57.9 x 36.8 x 10.8 mm)
2.37 x 1.54 x 0.60 in (60.2 x 39.1 x 15.1 mm)
2.37 x 1.54 x 0.85 in (60.2 x 39.1 x 21.5 mm)
Wall Industries, Inc. • 5 Watson Brook Road, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797
website: www.wallindustries.com • e-mail: [email protected]
Page 2 of 7
MPQ SERIES
Up to 125 Watts, Quarter-Brick DC/DC Converters
Rev D
Wall Industries, Inc.
MECHANICAL DRAWINGS
Ø.062 [1.57]
4
+Vout
Ø.062 [1.57]
5
+SENSE
Ø.040 [1.02]
6
TRIM
-SENSE
Ø.040 [1.02]
7
8
-Vout
Ø.062 [1.57]
.42 [10.7]
Ø.040 [1.02]
.00 [0.0]
.00 [0.0]
1
1
2
2
3
3
.11 [2.8] REF
4
5
6
7
8
WALL INDUSTRIES
MODEL NAME
XXXX EXETER, NH 03833 XXXX
LABEL
.43 [10.8]
INTERFACE-PLANE
2. PIN DIAMETER TOLERANCE OF ±.005 [±0.13]
MEASUREMENT READING APPLIES TO AREA
FROM INTERFACE-PLANE SURFACE DATUM-B TO
END OF PIN ONLY.
.42 [10.7]
4
5
6
7
8
NOTES:
1. PIN TO PIN TOLERANCE: ±.010 [±0.25] MEASURED
AT STANDOFF FEATURE ONLY, DATUM-B.
.60 [15.2]
Ø.040 [1.02]
-Vin
.30 [7.6]
ON/OFF
3
.45 [11.4]
2
2.28 [57.9]
.15 [3.8]
Ø.062 [1.57]
INTERFACE-PLANE
+Vin
1.45 [36.8]
PIN Ø
1
.30 [7.6]
.60 [15.2]
PIN DESIGNATION
.00 [0.0]
Unit: inches [mm]
.00 [0.0]
Open Frame (Only Available for 48Vin Models)
.14 [3.6]
UNLESS OTHERWISE SPECIFIED
ALL DIMENSONS ARE IN INCHES
[ XX ] ARE IN MILLIMETERS
APPLIED TOLERANCES:
.19 [4.7]
3. UNLESS OTHERWISE SPECIFIED.
ANGLES= ±1°
.XX=±.02[0.5] .XXX=±.010[0.25]
.00 [0.0]
DO NOT SCALE DRAWING
INTERFACE-PLANE
A
.071±.005 [1.80±0.13]
STANDOFF DIMENSION
Ø.040 [1.02] PINS ONLY 4X
RECOMMENDED FINISHED RECEIVING PCB
STAND-OFF HOLE Ø.052±.003 [1.32±0.08]
PIN-2 SHOWN FOR DIMENSIONS
PIN END
INTERPRET DIMENSION AND TOLERANCE
PER ASME Y14.5M - 1994
B
THIRD ANGLE PROJECTION
.20 MIN [5.1 MIN]
SEE NOTE-3
PIN LENGTH FROM
INTERFACE-PLANE ONLY
2.00 [50.8]
Cased Option (“C” Suffix)
Unit: inches [mm]
Ø.040 [1.02]
6
TRIM
-SENSE
Ø.040 [1.02]
7
8
-Vout
Ø.062 [1.57]
.00 [0.0]
.00 [0.0]
.60 [15.2]
Ø.062 [1.57]
+SENSE
.45 [11.4]
+Vout
5
.00 [0.0]
.30 [7.6]
4
.15 [3.8]
Ø.062 [1.57]
.26 [6.5]
1
1
.47 [11.9]
2
2
3
3
Ø.040 [1.02]
4
5
6
7
8
1.030 [26.16]
1.54 [39.1]
Ø.040 [1.02]
-Vin
XXXX
ON/OFF
3
XXXX
2
.51 [13.0]
2.37 [60.2]
MODEL NAME
Ø.062 [1.57]
DOT DENOTES
PIN-1
WALL INDUSTRIES
+Vin
.00 [0.0]
PIN Ø
1
.30 [7.6]
.60 [15.2]
PIN DESIGNATION
.112(NO:4)-40UNC-2B 4X
MAX SCREW DEPTH .100 FROM SURFACE-A 4X
MAX APPLIED RECIEVING
TORQUE: 6.0 lbf in [ 0.68 N m]
.47 [11.9]
4
5
6
7
8
.19 [4.7]
3. UNLESS OTHERWISE SPECIFIED.
4. THERMAL TRANSFER PLATE MATERIAL: .040 [1.02]
THICK, ALUMINUM ALLOY 3003-0, PER: QQA 250/2
WITH BLACK SOFT SULFURIC ANODIZE FINISH.
UNLESS OTHERWISE SPECIFIED
ALL DIMENSONS ARE IN INCHES
[ XX ] ARE IN MILLIMETERS
APPLIED TOLERANCES:
ANGLES= ±1°
.XX=±.02[0.5] .XXX=±.010[0.25]
.00 [0.0]
DO NOT SCALE DRAWING
INTERFACE-PLANE
C
.071±.005 [1.80±0.13]
STANDOFF DIMENSION
Ø.040 [1.02] PINS ONLY 4X
RECOMMENDED FINISHED RECEIVING PCB
STAND-OFF HOLE Ø.052±.003 [1.32±0.08]
PIN-2 SHOWN FOR DIMENSIONS
02/15/2013
.19 [4.7]
.005
INTERFACE-PLANE
SEE NOTE-4
-A-
.26 [6.5]
.60 [15.1]
2. PIN DIAMETER TOLERANCE OF ±.005 [±0.13]
MEASUREMENT READING APPLIES TO AREA
FROM INTERFACE-PLANE SURFACE DATUM-C TO
END OF PIN ONLY.
1.860 [47.24]
.41 [10.4]
1. PIN TO PIN TOLERANCE: ±.010 [±0.25] MEASURED
AT STANDOFF FEATURE ONLY, DATUM-B.
INTERFACE-PLANE
LABEL
NOTES:
PIN END
2.00 [50.8]
B
INTERPRET DIMENSION AND TOLERANCE
PER ASME Y14.5M - 1994
THIRD ANGLE PROJECTION
.20 MIN [5.1 MIN]
SEE NOTE-3
PIN LENGTH FROM
INTERFACE-PLANE ONLY
Wall Industries, Inc. • 5 Watson Brook Road, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797
website: www.wallindustries.com • e-mail: [email protected]
Page 3 of 7
MPQ SERIES
Up to 125 Watts, Quarter-Brick DC/DC Converters
Rev D
Wall Industries, Inc.
MECHANICAL DRAWINGS
Heatsink Option (“HS” Suffix)
.60 [15.2]
.00 [0.0]
.30 [7.6]
.15 [3.8]
.51 [13.0]
2.37 [60.2]
.45 [11.4]
DOT DENOTES
PIN-1
.00 [0.0]
.00 [0.0]
.00 [0.0]
.112(NO:4)-40UNC-2B 4X
MAX SCREW DEPTH .100 FROM SURFACE-A 4X
MAX APPLIED RECIEVING
TORQUE: 6.0 lbf in [ 0.68 N m]
.30 [7.6]
.60 [15.2]
Unit: inches [mm]
XXXX
3
3
.60 [15.1]
.85 +.04 21.5 +1.0
-.02
- 0.5
.26 [6.5]
-A-
.41 [10.4]
.47 [11.9]
4
5
6
7
8
1.860 [47.24]
LABEL
INTERFACE-PLANE
4
5
6
7
8
2
INTERFACE-PLANE
1
1.030 [26.16]
XXXX
XXXXXXXXXXXHS
WALL INDUSTRIES
2
1.54 [39.1]
.26 [6.5]
1
.47 [11.9]
1
4
5
6
7
8
2
3
NOTES:
1. PIN TO PIN TOLERANCE: ±.010 [±0.25] MEASURED AT STANDOFF FEATURE ONLY, DATUM-B.
2. PIN DIAMETER TOLERANCE OF ±.005 [±0.13] MEASUREMENT READING APPLIES TO AREA
FROM INTERFACE-PLANE SURFACE DATUM-C TO END OF PIN ONLY.
3. UNLESS OTHERWISE SPECIFIED.
4. THERMAL TRANSFER PLATE MATERIAL: .040 [1.02] THICK, ALUMINUM ALLOY 3003-0,
PER: QQA 250/2 WITH BLACK SOFT SULFURIC ANODIZE FINISH.
SEE NOTE-4
.005
PIN DESIGNATION
.19 [4.7]
A
.00 [0.0]
INTERFACE-PLANE
C
.071±.005 [1.80±0.13]
STANDOFF DIMENSION
Ø.040 [1.02] PINS ONLY 6X
RECOMMENDED FINISHED RECEIVING PCB
STAND-OFF HOLE Ø.052±.003 [1.32±0.08]
PIN END
B
.20 MIN [5.1 MIN]
SEE NOTE-3
PIN LENGTH FROM
INTERFACE-PLANE ONLY
2.00 [50.8]
.19 [4.7]
PIN Ø
UNLESS OTHERWISE SPECIFIED
1
+Vin
Ø.062 [1.57]
ALL DIMENSONS ARE IN INCHES
[ XX ] ARE IN MILLIMETERS
APPLIED TOLERANCES:
2
ON/OFF
Ø.040 [1.02]
3
-Vin
Ø.062 [1.57]
ANGLES= ±1°
.XX=±.02[0.5] .XXX=±.010[0.25]
4
+Vout
Ø.062 [1.57]
5
+SENSE
Ø.040 [1.02]
6
TRIM
Ø.040 [1.02]
7
-SENSE
Ø.040 [1.02]
8
-Vout
Ø.062 [1.57]
DO NOT SCALE DRAWING
INTERPRET DIMENSION AND TOLERANCE
PER ASME Y14.5M - 1994
THIRD ANGLE PROJECTION
FUNCTION DESCRIPTION
Pin
Pin Name
Function
Comments
1
+Vin
Positive Input
2
Enable
Remote ON/OFF
3
-Vin
Negative Input
4
+Vout
Positive Output
5
+Sense
Positive Remote Sense
If not used short to +Vo
6
Trim
Output Voltage Trim
If not used leave open
7
-Sense
Negative Remote Sense
If not used short to -Vo
8
-Vout
Negative Output
02/15/2013
If not used leave open for standard (Active High)units; short to –Vin on Active Low units (suffix “R”)
Wall Industries, Inc. • 5 Watson Brook Road, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797
website: www.wallindustries.com • e-mail: [email protected]
Page 4 of 7
Wall Industries, Inc.
Rev D
MPQ SERIES
Up to 125 Watts, Quarter-Brick DC/DC Converters
DESIGN CONSIDERATIONS
Under Voltage Lock Out (UVLO)
The converter output is disabled until the input voltage exceeds the UVLO turn-on limit. The converter will remain ON until the input voltage falls
below the UVLO turn-off limit.
Over Current Protection
The converter is protected from short circuit and over current conditions. Upon sensing an over current, the output will begin to drop (or ‘foldback’)
limiting the output power. Further increasing the output current will cause the converter to shut off and then restart (or ‘hiccup’) until the over
current condition is removed. Shorting the output will cause the converter to immediately enter the ‘hiccup’ mode.
Over Temperature Protection
The converter is protected from over temperature conditions. Upon exceeding this temperature, the converter will shut down. The converter will
automatically recover once the over temperature condition is removed.
Input Filter
No additional input capacitor is needed for the power supply to operate. However, due to the low voltage, high input current nature of the power
supply; it is highly recommended that a minimum 100µF/50 V electrolytic type input bulk capacitor be added to reduce input ripple voltage and
current. Refer to Photos 1 and 2 for an example. For an even further reduction of input ripple, an inductor may be placed between the source and
the previously mentioned capacitor. Additionally, a 1-10µF ceramic capacitor may be added in front of the inductor to form pi-filter. No inductor
should be placed between the capacitor and the input to the converter.
Output Filter
No additional output capacitor is needed for the power supply to operate. However, to reduce the ripple and noise on the output, additional
capacitance may be added. Usually, a ceramic capacitor between 1 and 100µF works best for reducing ripple and spike noise. Also, capacitance in
the form of a low-ESR, surge robust tantalum capacitor (ie: Kemet T495 Series) may also be placed across the output in order reduce ripple, and
improve the transient peak-to-peak voltage deviation. Due to the low-ESR nature of the output of the power supply, adding typical aluminum
electrolytic capacitors to the output will not help much in reducing ripple or transient deviations, unless the load is some distance from the power
supply output. Then, these capacitors should be placed at the load.
Remote Sense
To improve regulation at the load, route the connections from the -Sense and the +Sense pins to the –Vout and +Vout connections at the load. This
will force the converter to regulate the voltage at the load and not at the pins of the converter. If it is not desired to use the Remotes Sense feature,
the –Sense and +Sense pins should be shorted to the -Vout and +Vout pins respectively. However, no damage to the converter will occur if the
Sense pins are left open.
Fusing
It is required that the input to the converter be supplied with a maximum 10 A, 250 V rated fuse UL Listed or R/C fuse.
Safety
The MPQ series is designed to meet EN60950 Safety of Information Technology Equipment. The isolation provided by the MPQ series is a basic
insulation in accordance with EN60950. SELV output reliability is maintained only if the input to the converter is a SELV source. To maintain SELV
reliability, if either +Vin or –Vin is connected to chassis, either +Vout or –Vout must also be connected to chassis. Otherwise, both the input and the
output must not be connected to chassis.
PCB Layout Considerations
Due to the basic isolation provided by the converter, caution must be observed in routing traces more than 2mm inward of any input or output pins
on the top layer of the PCB board underneath the converter. Also, due to noise coupling and isolation requirements, no power or ground planes or
any signal traces should be routed on the top layer of the PCB underneath the converter. Due to common noise coupling, input or output power
and ground planes should not be poured across the input to output on any layers underneath the converter. Instead, it is best to provide separate
input and output power and ground traces on the bottom or an inner layer with a minimum of 1mm separation between traces on the same layer.
Lastly, as the case/heatsink is floating metal, caution must also be observed to provide appropriate spacing (minimum 1.4mm for Pollution degree 2
Material Group IIIa + IIIb) around the case/heatsink or risk reducing the input to output spacing and violating basic insulation requirements.
02/15/2013
Wall Industries, Inc. • 5 Watson Brook Road, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797
website: www.wallindustries.com • e-mail: [email protected]
Page 5 of 7
Rev D
Wall Industries, Inc.
MPQ SERIES
Up to 125 Watts, Quarter-Brick DC/DC Converters
Remote ON/OFF
These converters have the ability to be remotely turned ON or OFF. The series may be ordered Active-High or Active-Low (place the suffix “R” at the
end of the part number). Active-High means that a logic high at the ENABLE pin will turn ON the supply (Figure 1). With Active-High, if the ENABLE
pin is left floating, the supply will be enabled. Active-Low means that a logic low at the ENABLE pin will turn ON the supply (Figure 2). With ActiveLow, if the ENABLE pin is left floating, the supply will be disabled. If remote On/Off is not used on an Active-Low supply, short the Enable pin to –Vin.
Figure 1: Active High
Figure 2: Active Low
Output Voltage Trim
The output is adjustable from ±10% of the output voltage. To adjust the output voltage low, place a resistor between the TRIM and -SENSE pins
(Figure 3). To adjust the output voltage high, place a resistor between the +SENSE and TRIM pins (Figure 4). The value of the TRIM resistor with
respect to the desired output voltage can be found in Table 1 or derived from the following equations:
RTrim − Low =
5.11⋅ Vonom ⋅ (∆% + 100) 511
−
− 5.11 (in kΩ)
2.5 ⋅ ∆%
∆%
Vo + / − − Vonom
where ∆% = Percent Trim =
⋅100
Vo + / −
511
− 5.11 (in kΩ)
∆%
RTrim − High =
Figure 3: Trim Low
Percent Trim
1%
2%
3%
4%
5%
6%
7%
8%
9%
10%
02/15/2013
Table 1: Trim Resistor Values (in kΩ)
TRIM Low
TRIM High
Vout
RLow
Vout
RHigh
4.950
500.78
5.050
511.00
4.900
245.28
5.100
255.50
4.850
160.11
5.150
170.33
4.800
117.53
5.200
127.75
4.750
91.98
5.250
102.20
4.700
74.95
5.300
85.17
4.650
62.78
5.350
73.00
4.600
53.66
5.400
63.88
4.550
46.56
5.450
56.78
4.500
40.88
5.500
51.10
Figure 4: Trim High
Note: While decreasing the output voltage, the maximum output
current remains the same, and while increasing the output
voltage, the output current is reduced to maintain the total
output power.
Wall Industries, Inc. • 5 Watson Brook Road, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797
website: www.wallindustries.com • e-mail: [email protected]
Page 6 of 7
MPQ SERIES
Up to 125 Watts, Quarter-Brick DC/DC Converters
Rev D
Wall Industries, Inc.
CHARACTERISTIC CURVES
Graph 1: MPQ24S5-50C Efficiency vs. Output Current
Graph 2: MPQ24S5-50c Max Ambient vs. Io
92%
12.0
90%
10.0
88%
Io (A)
Efficiency (%)
8.0
200LFM
100LFM
No Air
86%
84%
Vin=12V
Vin=20V
Vin=28V
Vin=36V
82%
6.0
4.0
2.0
80%
78%
2
3
4
5
6
7
8
9
10
0.0
-40
-30
-20
-10
Io (A)
0
10
20
30
40
50
60
70
80
Ambient (°C)
Note: When trimming output high, Io vs. Ambient is derated by power. i.e.: from Graph 2, find the maximum current at the desired ambient and airflow, and multiply
this current by the nominal voltage to get the maximum power. Divide this power by the desired trimmed high voltage to get the maximum current at that
ambient. When trimming low, the maximum current stays the same as shown in Graph 2.
PART NUMBER SETUP
MPQ
24
Series Name
Input Voltage
50
C
R
HS
Output Power
Case Options (1)
Remote ON/OFF
Heatsink
3.3: 3.3 VDC
50: 50 Watts
None: Open frame (1)
None: Active High Enable
None: No Heatsink
10-24 VDC
5: 5 VDC
66: 66 Watts
10-36 VDC
12: 12 VDC
85: 85 Watts
18-36 VDC
15: 15 VDC
100: 100 Watts
48: 36-75 VDC
24: 24 VDC
120: 120 Watts
48: 48 VDC
125: 125 Watts
24: 9-36 VDC
S
3.3
Single Output Output Voltage
S: single
-
C: Case
R: Active Low Enable
HS: Heatsink
COMPANY INFORMATION
Wall Industries, Inc. has created custom and modified units for over 50 years. Our in-house research and development engineers will provide a
solution that exceeds your performance requirements on-time and on budget. Our ISO9001-2008 certification is just one example of our
commitment to producing a high quality, well-documented product for our customers.
Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working closely with its customers to
ensure each solution meets or exceeds form, fit and function requirements. We will continue to provide ongoing support for your project above and
beyond the design and production phases. Give us a call today to discuss your future projects.
Contact Wall Industries for further information:
Phone:
Toll Free:
Fax:
E-mail:
Web:
Address:
02/15/2013
(603)778-2300
(888)597-9255
(603)778-9797
[email protected]
www.wallindustries.com
5 Watson Brook Rd.
Exeter, NH 03833
Wall Industries, Inc. • 5 Watson Brook Road, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797
website: www.wallindustries.com • e-mail: [email protected]
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