• Thermal shutdown protects converter from abnormal
environmental conditions
Mechanical Features
• Industry standard quarter-brick pin-out configuration
• Industry standard size: 1.45” x 2.3” (36.8x58.4mm)
• Total height less than 0.436” (11.06mm), permits better
airflow and smaller card pitch
• Total weight: 1.5 oz. (42 grams)
• Flanged pins designed to permit surface mount solder-
ing (avoiding wave solder) using FPiP technique
Safety Features
• 2250V, 30 MΩ input-to-output isolation provides
input/output ground separation
• UL/cUL 60950-1 recognized (US & Canada), basic
insulation rating
• TUV certified to EN60950-1
• Meets 72/23/EEC and 93/68/EEC directives which
facilitates CE Marking in user’s end product
• Board and plastic components meet UL94V-0 flammabil-
ity requirements
Contr ol Features
• On/Off control referenced to input side (positive and
negative logic options are available)
Product # PQ60120QEA25
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2QE612J Rev. A
05/05/06
Page 1
Technical Specification
MECHANICAL
DIAGRAM
(open frame)
0.14
(3.6)
Input:
Output:
Current:
Package:
35-75 V
12 V
25 A
(300W)
Quarter-brick
2.30
(58.4)
0.43
(10.9)
2.00
(50.8)
0.300
0.150
(3.81)
(7.62)
1.45
0.300
(7.62)
Top View
(36.8)
0.450
(11.43)
0.600
(15.24)
0.600
(15.24)
0.436 max
Side View
Bottom side
Clearance
See Note 9
(11.06)
0.025 +0.024
(0.64 +0.61)
Lowest
Component
Load Board
Flanged Pin
See Note 10
0.180
(4.57)
See Note 3
NOTES
1) Pins 1-3, 5-7 are 0.040” (1.02mm) diameter with
0.080” (2.03 mm) diameter standoff shoulders.
2) Pins 4 and 8 are 0.062” (1.57 mm) diameter with 0.100”
(2.54 mm) diameter standoff shoulders.
3) Other pin extension lengths available. Recommended pin
length is 0.03” (0.76mm) greater than the PCB thickness.
4) All Pins: Material - Copper Alloy
Finish (RoHS 5/6) - Tin/Lead over Nickel plate
Finish (RoHS 6/6) - Matte Tin over Nickel plate
5) Undimensioned components are shown for visual reference only.
6) All dimensions in inches (mm)
Tolerances: x.xx +0.02 in. (x.x +0.5mm)
x.xxx +0.010 in. (x.xx +0.25mm)
7) Weight: 1.5 oz. (42 g) typical
8) Workmanship: Meets or exceeds IPC-A-610C Class II
9)
UL/TUV standards require a clearance greater than 0.04”
(1.02mm) between input and output for basic insulation. This issue
should be considered if any copper traces are on the top side of the
user’s board. Note that the ferrite cores are considered part of the
input/primary circuit.
PIN DESIGNATIONS
Pin No.
1
2
3
4
5
6
7
8
Notes:
1. SENSE(–) should be connected to Vout(–) either remotely or at the converter.
2. Leave TRIM pin open for nominal output voltage.
3. SENSE(+) should be connected to Vout(+) either remotely or at the converter.
Name
Vin(+)
ON/OFF
Vin(
–
)
Vout(
–
)
SENSE(
–
)
TRIM
SENSE(+)
Vout(+)
Function
Positive input voltage
TTL input to turn converter
on and off, referenced to
Vin(
–
), with internal pull up.
Negative input voltage
Negative output voltage
Negative remote sense
1
Output voltage trim
2
Positive remote sense
3
Positive output voltage
10) The flanged pins are designed to permit surface mount solder-
ing (allowing to avoid the wave soldering process) through the
use of the flanged pin-in-paste technique.
Product # PQ60120QEA25
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2QE612J Rev. A
05/05/06
Page 2
Technical Specification
MECHANICAL
DIAGRAM
(base-plated)
0.14
(3.6)
Input:
Output:
Current:
Package:
2.30
(58.4)
35-75 V
12 V
25 A
(300W)
Quarter-brick
0.600
(15.24)
0.450
(11.43)
2.00
(50.8)
0.300
(7.62)
0.150
(3.81)
0.43
(10.9)
1
Top View
0.600
(15.24)
2
3
8
7
6
5
4
0.300
(7.62)
1.86
(47.2)
1.03
(26.2)
M3 Threaded Inserts
4 Places
See Notes 11 & 12
0.22
(5.6)
0.21
(5.3)
1.45
(36.8)
Side View
0.499 max
(12.67)
Bottom side
Clearance
See Note 9
Lowest
Component
Load Board
Flanged Pin
See Note 10
0.180
(4.57)
See Note 3
0.025 +.024
(10.46 +0.60)
NOTES
1) Pins 1-3, 5-7 are 0.040” (1.02mm) diameter with 0.080”
(2.03 mm) diameter standoff shoulders.
2) Pins 4 and 8 are 0.062” (1.57 mm) diameter with 0.100”
(2.54 mm) diameter standoff shoulders.
3) Other pin extension lengths available. Recommended pin length is
0.03” (0.76mm) greater than the PCB thickness.
4) All Pins: Material - Copper Alloy
Finish (RoHS 5/6) - Tin/Lead over Nickel plate
Finish (RoHS 6/6) - Matte Tin over Nickel plate
5) Undimensioned components are shown for visual reference only.
6) All dimensions in inches (mm)
Tolerances: x.xx +0.02 in. (x.x +0.5mm)
x.xxx +0.010 in. (x.xx +0.25mm)
7) Weight: 2.4 oz. (69 g) typical
8) Workmanship: Meets or exceeds IPC-A-610C Class II
9) UL/TUV standards require a clearance greater than 0.04” (1.02mm)
between input and output for Basic insulation. This issue should be consid-
ered if any copper traces are on the top side of the user’s board. Note that
the ferrite cores are considered part of the input/primary circuit.
10) The flanged pins are designed to permit surface mount soldering (avoiding the
wave soldering process) through the use of the flanged pin-in-paste technique.
11) M3 screws used to bolt unit’s baseplate to other surfaces such as a heatsink
must not exceed 0.100” (2.54mm) depth below the baseplate surface.
12) Applied torque per screw should not exceed 6 in-lb (0.7 Nm).
Product # PQ60120QEA25
Phone 1-888-567-9596
PIN DESIGNATIONS
Pin No.
1
2
3
4
5
6
7
8
Notes:
1. SENSE(–) should be connected to Vout(–) either remotely or at the converter.
2. Leave TRIM pin open for nominal output voltage.
3. SENSE(+) should be connected to Vout(+) either remotely or at the converter.
Name
Vin(+)
ON/OFF
Vin(
–
)
Vout(
–
)
SENSE(
–
)
TRIM
SENSE(+)
Vout(+)
Function
Positive input voltage
TTL input to turn converter
on and off, referenced to
Vin(
–
), with internal pull up.
Negative input voltage
Negative output voltage
Negative remote sense
1
Output voltage trim
2
Positive remote sense
3
Positive output voltage
www.synqor.com
Doc.# 005-2QE612J Rev. A
05/05/06
Page 3
Technical Specification
PQ60120QEA25 ELECTRICAL CHARACTERISTICS
Parameter
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
Operating
Operating Transient Protection
Isolation Voltage (input to output)
Operating Temperature
Storage Temperature
Voltage at ON/OFF input pin
INPUT CHARACTERISTICS
Operating Input Voltage Range
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Voltage Hysteresis
Maximum Input Current
No-Load Input Current
Disabled Input Current
Response to Input Transient
Input Reflected Ripple Current
Input Terminal Ripple Current
Recommended Input Fuse
Input Filter Component Values (L\C)
Recommended External Input Capacitance
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Line
1
Over Load
1
Over Temperature
Total Output Voltage Range
Output Voltage Ripple and Noise
2
Peak-to-Peak
RMS
Operating Output Current Range
Output DC Current-Limit Inception
Output DC Current-Limit Shutdown Voltage
3
Back-Drive Current Limit while Enabled
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
DYNAMIC CHARACTERISTICS
Output Voltage during Load Current Transient
For a Step Change in Output C urrent (0.1A/µs)
For a Step Change in Output Current (5A/µs)
Settling Time
Turn-On Transient
Turn-On Time
Output Voltage Overshoot
EFFICIENCY
100% Load
50% Load
TEMPERATURE LIMITS FOR POWER DERATING CURVES
Semiconductor Junction Temperature
Board Temperature
Transformer Temperature
ISOLATION CHARACTERISTICS
Isolation Voltage (dielectric strength)
Isolation Resistance
Isolation Capacitance
4
Input:
Output:
Current:
Package:
35-75 V
12 V
25 A
(300W)
Quarter-brick
T
A
=25°C, airflow rate=300 LFM, V
in
=48Vdc unless otherwise noted; full operating temperature range is -40°C to +100°C ambient tem-
perature with appropriate power derating. Specifications subject to change without notice.
Min.
Typ.
Max.
100
80
100
2250
100
125
18
48
33.0
29.5
3.5
70
20
1.0
5
60
1.5/6
100
11.70
12.00
+1.0\120
+1.0\120
+90
11.58
50
10
0
27
13
0
32
5.0
18
0.5
12.30
75
34.5
31.0
4.5
10
100
40
10
15
Units
V
V
V
V
°C
°C
V
V
V
V
V
A
mA
mA
V
mA
mA
A
µH\µF
µF
V
%\mV
%\mV
mV
V
mV
mV
A
A
V
A
mA
mF
Notes & Conditions
Continuous
Continuous
100ms transient, square wave
Basic insulation, Pollution Degree 2
-40
-55
-2
35
31.5
28.0
2.5
100V transient for 100ms
100% Load, 35 Vin, trimmed up 5%
0.25V/µs input transient
RMS thru 4.7µH inductor
RMS
Fast blow external fuse recommended
Internal values; see Figure F (Lin\C
2
)
Typical ESR 0.1-0.2Ω
+240
12.42
100
40
25
37
23
1
12
Over sample, line, load, temperature & life
500MHz bandwidth
Full Load
Full Load
Subject to thermal derating
Output Voltage 10% Low
Negative current drawn from output source
Negative current drawn from output source
12Vout at 25A Resistive Load
350
350
1
22
25
2
96.0
96.5
125
125
125
2250
30
1000
28
mV
mV
ms
ms
%
%
%
°C
°C
°C
V
MΩ
pF
50% to 75% to 50% Iout max
50% to 75% to 50% Iout max, 470 µF load cap
To within 1% Vout nom
Full load, ON/OFF to Vout=90% nom.
12 mF load capacitance, Iout = 0A
Figures 1 & 2
Figures 1 & 2
Package rated to 150°C
UL rated max operating temp 130°C
See Figures 3 - 6 for derating curves
95.5
Note
Note
Note
Note
1:
2:
3:
4:
Line and load regulation is limited by duty cycle quantization and does not indicate a shift in the internal voltage reference.
For applications requiring reduced output voltage ripple and noise, consult SynQor applications support (e-mail: support@synqor.com).
If the output voltage falls below the Output DC Current Limit Shutdown Voltage for more than 50ms, then the unit will enter into hiccup mode, with a 500ms off-time.
Higher values of isolation capacitance can be added external to the module.
