Technical
Specification
NQ20x20QGC40
9 - 20 V
Continuous Input
0 - 20 V
Outputs
40 A
Current
Non-
Isolated
Quarter-brick
DC-DC Converter
The NiQor
®
quarter-brick dc-dc converter is a non-isolated
buck-boost
regulator,
which
employs
synchronous
Non-Isolated
rectification to achieve extremely high conversion efficiency.
The High Input Voltage NiQor Brick family of converters can
be used in traditional DPA (distributed power architecture)
systems or provide a regulated output voltage from a
battery source or other variable voltage source. The NiQor
Brick family can be configured to Buck the input voltage
down to a lower voltage or Boost the input voltage up to
a higher voltage using a single external resistor. These
modules are RoHS 6/6 compliant (see last page).
Operational Features
• Ultra high efficiency, up to 95% at full rated load
• Delivers up to 40 A of output current
• Input Voltage Range: 9 - 20 V
• Output voltage range: 0 - 20 V (negative output is possible)
• Extensive on-board input and output filtering
• No minimum load requirement means no preload
resistors required
• Buck or buck-boost versions available
• Adjustable current limit with current monitor (C option)
NiQor quarter-brick module
Protection Features
• Input under-voltage lockout protects the converter at low
input voltage conditions
• Over-current shutdown protects converter from excessive
load current or short circuits
• Input/output over-voltage protection protects load
and regulator from damaging voltages
• Thermal shutdown protects converter from abnormal
environmental conditions
Mechanical Features
• Industry standard quarter-brick pin-out configuration
• Size: 1.54" x 2.39" (39x60.6 mm)
• Total height only 0.515" (13.08 mm)
• Total weight: 3 oz (85 g)
Safety Features
Control Features
• On/Off control
• Output voltage trim permits custom voltages
• Remote Sense (S option, standard)
• Current limit trim (C option)
Product # NQ20x20QGC40
Phone 1-888-567-9596
• UL/cUL 60950-1 recognized (US & Canada)
• TUV certified to EN60950-1
• Board and plastic components meet UL94V-0
flammability requirements
www.synqor.com
Doc.# 005-NQ2020W Rev. B
03/06/09
Page 1
Technical Specification
MECHANICAL DIAGRAM
.810 [ 20,57 ]
.600 [ 15,24 ]
.450 [ 11,43 ]
.300 [ 7,62 ]
.150 [ 3,81 ]
1.536 ±.020
[ 39,01±0,5]
.263±.020
[ 6,7±0,5 ]
Input:
Outputs:
Current:
Package:
10 - 20 V
0 - 20 V
40 A
Quarter-brick
.515±.025
[13.08± 0.63]
OVERALL HEIGHT
8 7 6 5 4
2.386 ±.020
[ 60,6±0,5]
2.00
[ 50,8]
Top View
1.86
[ 47,2 ]
Side View
M3 THREADED INSERTS
2 PLACES
SEE NOTES 1 & 2
.145
[ 3,68 ]
1
2
3
.468±.020 [ 11,89±0,5 ]
.300 [ 7,62 ]
.600 [ 15,24 ]
.020±.010
[ 0,51±0,25]
BOTTOMSIDE
CLEARANCE
.183±.020
[ 4,65±0,5 ]
NOTES
1)
M3 SCREWS USED TO BOLT UNIT'S BASEPLATE TO OTHER SURFACES
SUCH AS HEATSINKS MUST NOT EXCEED 0.090" (2.28mm) DEPTH
BELOW THE SURFACE OF THE BASEPLATE.
APPLIED TORQUE PER SCREW SHOULD NOT EXCEED 6in-lb (0.7Nm)
BASEPLATE FLATNESS TOLERANCE IS 0.004" (.10mm) TIR FOR
SURFACE
PINS 1-3, 5-7 ARE 0.040" (1.02mm) DIA. WITH 0.080" (2.03mm) DIA.
STANDOFF SHOULDERS
PINS 4 AND 8 ARE 0.062" (1.57mm) DIA. WITH 0.100" (2.54mm)
DIA. STANDOFF SHOULDERS
ALL PINS: MATERIAL: COPPER ALLOY
FINISH: MATTE TIN OVER NICKEL PLATE
UNDIMENSIONED COMPONENTS ARE SHOWN FOR VISUAL
REFERENCE ONLY
ALL DIMENSIONS IN INCHES(mm)
TOLERANCES: X.XXIN +/-0.02 (X.Xmm +/-0.5mm) X.XXXIN +/-
0.010 (X.XXmm +/-0.25mm)
Weight: =3oz (85g) typical
PIN DESIGNATIONS
Pin Label
1
2
3
4
Vin(+)
ON/OFF
Vin
(-)
Vout
(-)
SENSE
(-)
TRIM
SENSE
(+)
Vout(+)
Function
Positive input
TTL input to turn converter on and off,
referenced to Vin(-), with internal pull up
Negative input voltage, internal short to
Pin 4
Negative output voltage, internal short to
Pin 3
Negative remote sense. See note 1
(S option)
Isense (C option)
Output voltage trim
Positive remote sense. See note
(S option)
Isense (C option)
Positive output voltage
2)
3)
4)
5)
6)
7)
8)
5
6
7
8
9)
10)
Workmanship: Meets or exceeds IPC-A-610C Class II
Notes:
1)SENSE(–) should be connected to Vout(–) either remotely or at
the converter
2)SENSE(+) should be connected to Vout(+) either remotely or at
the converter.
Product # NQ20x20QGC40
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-NQ2020W Rev. B
03/06/09
Page 2
Technical Specification
NQ20x20QGC40 ELECTRICAL CHARACTERISTICS
Input:
Outputs:
Current:
Package:
10 - 20 V
0 - 20 V
40 A
Quarter-brick
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24 V dc unless otherwise noted; full operating temperature range is -40 °C to +105 °C ambient temperature with appropriate power derating.
Specifications subject to change without notice.
Parameter
Vout Min.
All
All
All
All
All
All
All
All
All
0
-55
0
9
Typ.
Max. Units Notes & Conditions
30
20
125
5.5
20
40
40
20
40
V
V
°C
V
V
A
A
µF
V
A
Continuous
Continuous
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
Operating
Storage Temperature
Voltage at ON/OFF input pin
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
Input Fuse Rating
Input Current
External Input Capacitance
Output Voltage
Output Current
100
0
0
Turn on at 10V
Fast blow external fuse recommended
Input current max equals output rated current
ESR < 1.5 Ω
Output voltage dependent
INPUT CHARACTERISTICS
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Hysteresis
Input Current Limit
No-Load Input Current
“
“
Disabled Input Current
Input Filter Components Value (C\L\C)
OUTPUT CHARACTERISTICS
Output Voltage Range
Operating Output Current Range
Output Voltage Regulation
Total Output Voltage Range
Output Voltage Ripple and Noise (pk-pk/36Vin)
“
“
Output DC Over Current limit
External Output Capacitance
C Option: Isense voltage
No load
Full load
Output resistance of Isense
C Option: Itrim voltage
Voltage at no load
Voltage at maximum load
Pull-Up Resistance of Itrim Pin
Pull-Up Voltage
C Option: Reverse Current
TEMP LIMITS FOR POWER DERATING
Semiconductor Junction Temperature
Board Temperature
Baseplate Temperature
EFFICIENCY
100% Load; 24 Vin
“ ; 48 Vin
“ ; 24 Vin
50% Load; 24 Vin
“ ; 48 Vin
“ ; 24 Vin
Product # NQ20x20QGC40
All
All
All
All
12
24
48
All
All
All
All
All
5
12
20
All
All
All
All
All
All
All
All
All
All
All
All
All
12
5
20
12
5
20
9.2
8.1
9.5
8.5
1.0
48
175
135
300
60
40\0.47\120
10
8.9
V
V
V
A
mA
mA
mA
mA
µF\µH\µF
V
A
Set output by Rtrim resistor
0
0
20
40
±160 mV ±4%*Vout
15
15
40
48
0
5000
1.25
1.83
10
0.12
2.12
10.2
2.5
2
125
125
100
94
88
94
95
91
95
www.synqor.com
mV
mV
mV
A
µF
V
V
kΩ
V
V
kΩ
V
µA
°C
°C
°C
%
%
%
%
%
%
Sense pin, over sample, line, load, temp. & life
12 Vin Full Load; 100uF; 20 MHz b.w.
"
Effective on input, output condition
ESR > 1 mΩ
40 A load
40 A load
Enabled or Disabled
Package rated to 150 °C
ULrated max operating temp 130 °C
W mode only
W mode only
03/06/09
Page 3
Phone 1-888-567-9596
Doc.# 005-NQ2020W Rev. B
Technical Specification
Input:
Outputs:
Current:
Package:
10 - 20 V
0 - 20 V
40 A
Quarter-brick
NQ20x20QGC40 ELECTRICAL CHARACTERISTICS (Continued)
DYNAMIC CHARACTERISTICS
Output Voltage during Current Transient
For a Step Change in Output Current
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24 V dc unless otherwise noted; full operating temperature range is -40 °C to +105 °C ambient temperature with appropriate power derating. Specifications
subject to change without notice.
Parameter
Vout Min. Typ. Max.
All
1
Units Notes & Conditions
V
Settling Time
Turn on Transient
Startup delay
Rise Rate
Output Voltage Overshoot
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control
Negative Logic (N) ON/OFF Control
Off-State Voltage
On-State Voltage
Pull-Up Voltage
Pull-Up Resistance
Output Voltage Trim Range
Input/Output Over-Voltage Protection
Over-Temperature Shutdown
Over-Temperature Shutdown Restart Hysteresis
RELIABILITY CHARACTERISTICS
Calculated MTBF (TR-NWT-000332; Telcordia)
Calculated MTBF (MIL-HDBK-217F; MIL-217)
Field Demonstrated MTBF
All
All
All
All
All
240
3
2
0.2
0
250
260
ms
ms
V/ms
V
kHz
(0.1 A/µs); 50%-75%-50% Iout max
To within 1.5% Vout nom.
Resistive load
"
"
All
All
All
All
All
All
All
All
All
All
All
1.8
0
3.3
10
0
22
24
115
15
TBD
TBD
3.3
0.8
40
25
V
V
V
kΩ
V
V
°C
°C
Measured Vout+ to common pins
Over full temp range
Average PCB Temperature
106 Hrs. 100% load, 200LFM, 40 °C Ta
106 Hrs. 100% load, 200LFM, 40 °C Ta
106 Hrs. See our website for details
STANDARDS COMPLIANCE
Parameter
Notes & Conditions
STANDARDS COMPLIANCE
UL/cUL 60950-1
Pending UL Approval File # E194341
EN60950-1
Certified by TUV
Needle Flame Test (IEC 695-2-2)
Test on entire assembly; board & plastic components UL94V-0 compliant
IEC 61000-4-2
ESD test, 8 kV - NP, 15 kV air - NP (Normal Performance)
GR-1089-CORE
Section 7 - electrical safety, Section 9 - bonding/grounding
Telcordia (Bellcore) GR-513
Note: An external input fuse must always be used to meet these safety requirements. Contact SynQor for official safety certificates on new
releases or download from the SynQor website.
QUALIFICATION TESTING
Parameter
# Units
Test Conditions
QUALIFICATION TESTING
Life Test
32
95% rated Vin and load, units at derating point, 1000 hours
Vibration
5
10-55 Hz sweep, 0.060" total excursion, 1 min./sweep, 120 sweeps for 3 axis
Mechanical Shock
5
100g minimum, 2 drops in x and y axis, 1 drop in z axis
Temperature Cycling
10
-40 °C to 100 °C, unit temp. ramp 15 °C/min., 500 cycles
Power/Thermal Cycling
5
Toperating = min to max, Vin = min to max, full load, 100 cycles
Design Marginality
5
Tmin-10 °C to Tmax+10 °C, 5 °C steps, Vin = min to max, 0-105% load
Humidity
5
85 °C, 85% RH, 1000 hours, continuous Vin applied except 5 min/day
Solderability
15 pins
MIL-STD-883, method 2003
Note: Extensive characterization testing of all SynQor products and manufacturing processes is performed to ensure that we supply
robust, reliable product. Contact the factory for official product family qualification documents.
Product # NQ20x20QGC40
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-NQ2020W Rev. B
03/06/09
Page 4
Technical Specification
100
95
90
Efficiency (%)
Pdiss. (W)
35
30
25
20
15
10
5
0
Input:
Outputs:
Current:
Package:
10 - 20 V
0 - 20 V
40 A
Quarter-brick
85
80
75
20Vin 12Vout
20Vin 12Vout
12Vin 5Vout
20Vin 5Vout
12Vin 20Vout
70
65
60
0
5
10
15
20
25
Load Current (A)
30
12Vin 5Vout
20Vin 5Vout
12Vin 20Vout
35
40
0
5
10
15
20
25
30
35
40
Load Current (A)
Figure 1:
Efficiency at different output voltage vs. load current for dif-
ferent input voltage at 25
°C
.
Figure 2:
Power dissipation at different output voltage vs. load current
for different input voltage at 25
°C
.
45
40
Derated Output Current (A)
35
30
25
20
15
10
5
0
8
10
12
14
16
Input Voltage (V)
18
20
Tb=80 C; Vout=5 V
Tb=100 C; Vout=5 V
Tb=80 C; Vout=12 V
Tb=100 C; Vout=12 V
Tb=80 C; Vout=20 V
Tb=100 C; Vout=20 V
source
impedance
1
µ
H
See Fig. 5
See Fig. 6
i
S
V
SOURCE
i
C
V
in
Dc-dc
Converter
V
out
100 µF
100mW ESR
tantalum
capacitor
C*
* See values for recommended external input capacitance.
Inductor optional as needed.
Figure 3:
Maximum output power derating curve with a controlled
baseplate temperature of 80C and 100C.
Figure 4:
Test set-up diagram showing measurement points for Input
Terminal Ripple Current (Figure 5), and Output Voltage Ripple (Figure 6).
20 Vout
20 Vout
12 Vout
12 Vout
5 Vout
5 Vout
Figure 5:
Input Terminal Ripple Current at
12 V
input and rated load
current (500 mA/div). Load capacitance: 100
µ
F electrolytic cap.
Bandwidth: 20 MHz. See Figure 4.
Product # NQ20x20QGC40
Phone 1-888-567-9596
Figure 6:
Output Voltage Ripple at
12 V
input and rated load current
(20 mV/div). Load capacitance: 100
µ
F electrolytic cap.
Bandwidth: 20 MHz. See Figure 4.
Doc.# 005-NQ2020W Rev. B
03/06/09
Page 5
www.synqor.com
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