40A

Technical
Specification
NQ60W60HGx40
9-60 V
0 - 60V
40A
Non-
Half-brick
Continuous Input
Output
Current
Isolated
DC-DC Converter
The NiQor® half-brick dc-dc converter is a non-isolated buckboost regulator, which employs synchronous 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. The module is RoHS 6/6 compliant
(see last page).
Non-Isolated
NiQor Half-brick module
Operational Features
•
•
•
•
•
•
•
Protection Features
High efficiency, 96% at full rated load current
Delivers up to 40A of output current
Input Voltage Range: 9-60 Vdc
Output Voltage Range: 0 - 60V (negative output is possible)
Extensive on-board input and output filtering
No minimum load requirement means no preload resistors required
Adjustable current limit with current monitor
• 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
Safety Features
• Industry standard half-brick pin-out configuration
• Standard size: 2.49" x 2.39" (63.1mm x 60.6mm)
• Total height only 0.512" (13 mm)
• Total weight: Encased - 5.6oz (158.2g)
• CAN/CSA-C22.2 No.60950-1:2007/A2:2014
• UL 60950-1:2007/A2:2014
• EN 60950-1:2006/A2:2013
Contents
Control Features
•
•
•
•
•
On/Off control
Output voltage trim permits custom voltages
Remote Sense
Settable current limit
Output voltage trim range of 0V - 60V
Product # NQ60W60HGx40
Phone 1-888-567-9596
Page No.
Standard Mechanical Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Flanged Mechanical Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Technical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Standards & Qualifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
www.synqor.com
Doc.# 005-0006097 Rev. D
06/07/16
Page 1 of 13
Standard Mechanical Diagram
2.486 [63,14]
SEATING PLANE HEIGHT
0.512 0.005
[ 13,00 0,12]
2.000 [50,80]
9-60 V
0 - 60V
40A
Half-brick
Input:
Outputs:
Current:
Package
PIN EXTENSION
0.163
[4,14]
0.700 [17,78]
4
5
6
7
8
0.004 [0,10]
1.900
[48,26]
0.01
[0,3]
1.900
[48,26]
2.386
[60,60]
3
1
C B
A
2
0.400
0.600
0.800
1.000
1.400
BOTTOMSIDE CLEARANCE
0.017 0.010
[ 0,43 0,25]
0.30
[7,6]
1
THRU HOLE STANDOFFS
SEE NOTE 1
(4 PLCS)
[10,16]
[15,24]
[20,32]
[25,40]
[35,56]
PIN DESIGNATIONS
1)THREADED: APPLIED TORQUE PER M3 SCREW 5in-lb RECOMMENDED
(6in-lb LIMIT).
NONTHREADED: DIA 0.125" (3.18mm)
2)BASEPLATE FLATNESS TOLERANCE IS 0.004" (.10mm) TIR FOR
SURFACE.
3)PINS 1-3, 5-7, A, B, and C ARE 0.040" (1.02mm) DIA. WITH 0.080"
(2.03mm) DIA.
STANDOFFS.
4)PINS 4 AND 8 ARE 0.080" (2.03mm) DIA. WITH 0.125" (3.18mm) DIA
STANDOFFS
5)ALL PINS: MATERIAL: COPPER ALLOY
FINISH: MATTE TIN OVER NICKEL PLATE
6)WEIGHT: 5.6oz (158.2g)
7)ALL DIMENSIONS IN INCHES(mm)
TOLERANCES: X.XXIN +/-0.02 (X.Xmm +/-0.5mm)
Product # NQ60W60HGx40
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Pin
Label
Function, See Note 1
1
+Vin
2
On/Off
Input to enable/disable the converter, TTL
Input to synchronize the converter to an external clock, TTL
A
SyncIn
B
Iset
C
3
4
5
6
7
Ishare
-Vin
-Vout
VsenseVset
Vsense+
8
+Vout
Positive Supply Input
Input to set maximum output current
Input/Output: Current monitor or Current share
Negative Supply Input, internally connected to Pin 4
Negative Power Output, internally connected to Pin 3
Negative Power Voltage Sense. See Note 2
Input to set the maximum output voltage.
Positive Output Voltage Sense. See Note 3
Positive Power Output
Notes:
1)All Control signals are referenced to Vsense- pin.
2)Vsense- should be permanently connected to -Vout either at
the converter or remotely.
3)Vsense+ should be permanently connected to +Vout either at
the converter or remotely.
www.synqor.com
Doc.# 005-0006097 Rev. D
06/07/16
Page 2 of 13
Input:
Outputs:
Current:
Package
Flanged Mechanical Diagram
9-60 V
0 - 60V
40A
Half-brick
3.150 [80,01]
2.950 [74,93]
2.486 [63,14]
SEATING PLANE HEIGHT
0.495±0.025
[ 12,57±0,63 ]
PIN EXTENSION
0.180
[4,57]
0.700 [17,78]
4
5
7
6
8
TOP VIEW
0.010 [0,25]
1.300 1.866 2.386
[33,02] [47,40] [60,60]
1.900
[48,26]
0.31
[7,9]
3
1
0.775±0.020
[ 19,69±0,50 ]
.130 [3,30]
SEE NOTE 1
(6 PLCS)
FLANGE THICKNESS
0.125
[3,18]
C
B
A
2
1
0.400 [10,16]
BOTTOMSIDE CLEARANCE
0.005±0.010
[ 0,13±0,25 ]
0.600 [15,24]
0.800 [20,32]
1.000 [25,40]
1.400 [35,56]
NOTES
1) APPLIED TORQUE PER M3 OR 4-40 SCREW 4in-lb
RECOMMENDED (5in-lb LIMIT)
2) BASEPLATE FLATNESS TOLERANCE IS 0.010" (.25mm)
TIR FOR SURFACE.
3) PINS 1-3, 5-7, A, B, AND C ARE 0.040" (1.02mm)
DIA. WITH 0.080" (2.03mm) DIA. STANDOFFS.
4) PINS 4 AND 8 ARE 0.080" (2.03mm) DIA. WITH 0.125"
(3.18mm) DIA STANDOFFS
5) ALL PINS: MATERIAL: COPPER ALLOY
FINISH:
MATTE TIN OVER NICKEL PLATE
6) WEIGHT: 5.8oz (164.2g)
7) ALL DIMENSIONS IN INCHES (mm)
TOLERANCES: X.XXIN +/-0.02 (X.Xmm +/-0.5mm)
X.XXXIN +/-0.010 (X.XXmm +/-0.25mm)
Product # NQ60W60HGx40
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PIN DESIGNATIONS
Pin
Label
Function, see Note 1.
1
+Vin
2
ON/OFF
Input to enable/disable the converter, TTL.
A
SyncIn
Input to synchronize the converter to an external
clock, TTL.
Positive Supply Input.
Iset
Input to set the maximum output current.
B
Ishare
Input/Output: Current monitor or Current share.
C
-Vin
Negative Supply Input, internally connected to Pin 4.
3
-Vout
Negative Power Output, internally connected to Pin 3.
4
VsenseNegative Power Voltage Sense, See Note 2.
5
Vset
Input to set the maximum output voltage.
6
Vsense+ Positive Output Voltage Sense, See Note 3.
7
+Vout
Positive Power Output.
8
Notes:
1)All control signals referenced to Vsense- pin.
or at the converter
2)Vsense+ should be permantly connected to +Vout either
either at the convertor or remotely.
3)Vsense- should be permantly connected to -Vout either
either at the convertor or remotely.
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Doc.# 005-0006097 Rev. D
06/07/16
Page 3 of 13
Input:
Outputs:
Current:
Package
Technical Specification
9-60 V
0 - 60V
40A
Half-brick
NQ60W60HGx40 Electrical Characteristics
Ta = 25 °C, airflow rate = 300 LFM, Vin = 28 V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C baseplate temperature with appropriate power derating.
Specifications subject to change without notice.
Parameter
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
Operating
Storage Temperature
Voltage at ON/OFF input pin
Voltage at Vset and Iset Pins
Voltage at SyncIn Pin
Voltage between Vsense+ and +Vout pins
Voltage between Vsense- and -Vout pins
Isolation between heatsink/case and all pins
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
Input Fuse Rating
Input Current
External Input Capacitance
Output Voltage
Output Current
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
Load Regulation
Total Output Voltage Range
Output Voltage Ripple and Noise (pk-pk/28Vin)
“
“
Output DC Over Current limit
External Output Capacitance
Output Filter Components
Reverse Current
DYNAMIC CHARACTERISTICS
Output Voltage during Current Transient
For a Step Change in Output Current
Settling Time
For a Step Change in Output Current
Settling Time
Turn on Transient
Startup delay
Rise Rate
Output Voltage Overshoot
Product # NQ60W60HGx40
Vout
Min.
All
All
All
All
-1
Typ.
Max.
80
60
125
5.5
3.5
3.5
±6.0
±0.25
-45
0
-0.2
-0.2
Units Notes & Conditions
V
V
°C
V
V
V
V
V
Continuous
Continuous
Note 1
Note 1
No isolation guaranteed
All
All
9
All
All
All
100
0
0
All
All
All
All
12
24
48
All
All
9.2
5.1
All
All
0
0
All
All
12
24
48
All
All
All
All
60
50
40
V
A
A
µF
V
A
60
40
9.5
5.5
4.0
45
110
110
205
0.8
10 \ 0.33 \ 40
10
5.9
V
V
V
A
mA
mA
mA
mA
µF\µH\µF
60
40
V
A
Input voltage dependent
Set by Vset resistor
-2%*Vout*Iout/Imax
±100mV ±2%*Vout + Load Reg
60
60
100
45.0
100
40 \ 0.33 \ 13
1
Between Sense pins, over sample, line, load, temp. & life.
mV
mV
mV
A
µF
µF\µH\µF
µA
28 Vin Full Load; 100uF; 20 MHz b.w.
"
"
Effective on input, output condition
ESR > 1 mΩ
(0.1 A/µs); 50%-75%-50% Iout max
To within 1.5% Vout nom.
(0.1 A/µs); 50%-75%-50% Iout max
To within 1.5% Vout nom.
12
12
48
48
700
400
1000
800
mV
All
All
All
2
3.1
0
ms
V/ms
V
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Turn on at 10V
Fast blow external fuse recommended
Input current max equals output rated current
ESR > 50 mΩ See Note 2
www.synqor.com
us
mV
us
Disabled
Resistive load
"
"
Doc.# 005-0006097 Rev. D
06/07/16
Page 4 of 13
Input:
Outputs:
Current:
Package
Technical Specification
9-60 V
0 - 60V
40A
Half-brick
NQ60W60HGx40 Electrical Characteristics (continued)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 28 V dc unless otherwise noted; full operating temperature range is -40 °C to +100 °C baseplate temperature with appropriate power derating.
Specifications subject to change without notice.
Parameter
Vout
Min.
Typ.
Max. Units
EFFICIENCY
100% Load; 24 Vin
12
94
%
100% Load; 48 Vin
24
96
%
100% Load; 12 Vin
48
93
%
50% Load; 24 Vin
12
96
%
50% Load; 48 Vin
24
97
%
50% Load; 12 Vin
48
94
%
FEATURE CHARACTERISTICS
Switching Frequency
All
240
250
260
KHz
Synchronization
Sync Frequency Range
All
200
300
KHz
Duty Cycle Range at Input Pin
All
25
75
%
Logic Low Threshold Range
All
0.8
1.2
V
Logic High Threshold Voltage
All
1.3
2.0
V
Threshold Hysteresis
All
0.1
V
Pin Pull-Up Voltage
All
3.3
V
Pin Pull-Up Resistance
All
5
kΩ
On/Off, Negative (N) Logic
Off-State Threshold Voltage
All
1.4
1.5
V
On-State Threshold Voltage
All
1.0
1.1
V
Threshold Hysteresis
All
0.3
V
Pin Pull-Up Voltage
All
3.3
V
Pin Pull-Up Resistance
All
10
kΩ
Output Voltage Setpoint
Pin Pull-Up Voltage
All
2.5
V
Pin Pull-Up Resistance
All
10.9
kΩ
Output Voltage Setpoint Range
All
0
60
V
Output Over-Voltage Shutdown
All
65
V
Output Current Setpoint
Pin Pull-Up Voltage
All
2.5
V
Pin Pull-Up Resistance
All
10
kΩ
Output Current Setpoint Range
All
0
40
A
Input/Output Current Limit
All
42
45
48
A
Ishare/Imon
Pin Voltage at No Load
All
0.2
V
Pin Voltage at Full Load (Imax)
All
2.2
V
Pin Output Resistance
All
2.5
kΩ
Over-Temperature Shutdown
All
115
°C
Over-Temperature Shutdown Restart Hysteresis
All
15
°C
RELIABILITY CHARACTERISTICS
Calculated MTBF (TR-NWT-000332; Telcordia)
All
2.1
106 Hrs.
Calculated MTBF (MIL-HDBK-217F; MIL-217)
All
1.8
106 Hrs.
Field Demonstrated MTBF
All
106 Hrs.
TEMP LIMITS FOR POWER DERATING
Semiconductor Junction Temperature
All
125
°C
Board Temperature
All
125
°C
Baseplate Temperature
All
100
°C
Note 1: All control signals are referenced to Vsense- pin.
Note 2: Input capacitance and ESR of input capacitance dictated by input stability requirements.
Product # NQ60W60HGx40
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Notes & Conditions
See REMOTE ON/OFF: in CONTROL FEATURES
See OUTPUT VOLTAGE SETPOINT: in CONTROL FEATURES
Fixed - Does not vary with output setpoint
See OUTPUT CURRENT SETPOINT: in CONTROL FEATURES
See OUTPUT CURRENT SHARE: in CONTROL FEATURES
Average PCB Temperature
70 °C Tbaseplate
70 °C Tbaseplate
See our website for details
Package rated to 150 °C
UL rated max operating temp 130 °C
Doc.# 005-0006097 Rev. D
06/07/16
Page 5 of 13
9-60 V
0 - 60V
40A
Half-brick
Input:
Outputs:
Current:
Package
Technical Specification
100
40
35
30
Pdiss. (W)
Efficiency (%)
95
90
48Vin 24Vout
24Vin 12Vout
85
25
20
15
48Vin 24Vout
24Vin 12Vout
10
48Vin 12Vout
48Vin 12Vout
24Vin48Vout
24Vin 48Vout
5
12Vin 24Vout
12Vin 24Vout
12Vin 48Vout
12Vin 48Vout
80
0
0
5
10
15
20
25
Load Current (A)
30
35
40
Figure 1: Efficiency at different output voltages vs. load current for different
input voltages at 25°C.
0
5
10
15
20
25
Load Current (A)
30
35
40
Figure 2: Power dissipation at different output voltages vs. load current for
different input voltages at 25°C.
45
1 µH
35
source
impedance
Derated Output Current (A)
40
See Fig. 5
See Fig. 6
30
25
i
S
i
C
V
Dc-dc
IN
20
Converter
15
Tb=80 C; Vout=12 V
Tb=100 C; Vout=12 V
Tb=80 C; Vout=24 V
Tb=100 C; Vout=24 V
Tb=80 C; Vout=48 V
Tb=100 C; Vout=48 V
10
5
0
10
20
30
40
Input Voltage (V)
50
V
SOURCE
OUT
100 µF
100mΩ ESR
C*
* See values for recommended external input capacitance.
Inductor optional as needed.
60
V
tantalum
capacitor
Figure 3: Maximum output power derating curve with a controlled baseplate
temperature of 80°C and 100°C vs. Input voltage.
Figure 4: Test set-up diagram showing measurement points for Input Terminal
Ripple Current (Figure 5) and Output Voltage Ripple (Figure 6).
Figure 5: Input Terminal Ripple Current at 28V input and rated load current
(1A/div). Load capacitance: 100uF electrolytic cap. Bandwidth: 20MHz, (2uS/
div). See Figure 4
Figure 6: Output Voltage Ripple at 28V input and rated load current (200mV/
div). Load capacitance: 100uF electrolytic cap. Bandwidth: 20MHz, (2uS/div).
See Figure 4.
Product # NQ60W60HGx40
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Doc.# 005-0006097 Rev. D
06/07/16
Page 6 of 13
Input:
Outputs:
Current:
Package
Technical Specification
Figure 7: Turn-on transient at 28V input; full load (5ms/div). Top Traces: Vout
(10V/div). Bottom Trace: ON/OFF input (5V/div)
9-60 V
0 - 60V
40A
Half-brick
Figure 8: Turn-on transient at 28V input; zero load (5ms/div). Top Traces: Vout
(10V/div). Bottom Trace: ON/OFF input (5V/div)
2.50
Vset voltage (V)
2.00
1.50
1.00
0.50
0.00
0
10
20
30
40
50
60
Output Voltage Setpoint (V)
Figure 9: Vset pin voltage vs. Output Voltage Setpoint.
Figure 10: Output Voltage vs. Vset pin voltage dynamics; 28Vin, 10A out (2mS/
div). Top trace: Vset pin voltage (300mV/div). Bottom trace: Output Voltage (2V/
div).
Figure 11: Iset pin voltage vs. Output Current Limit Setpoint.
Figure 12: Output Current vs Iset pin voltage dynamics;
28Vin 10Vout (5mS/div).
Top Trace: Output Current (2A/div).
Bottom Trace: Iset pin voltage (200mV/div).
Product # NQ60W60HGx40
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Doc.# 005-0006097 Rev. D
06/07/16
Page 7 of 13
Input:
Outputs:
Current:
Package
Technical Specification
9-60 V
0 - 60V
40A
Half-brick
3.0
2.5
Ishare (V)
2.0
1.5
1.0
0.5
0.0
0
10
20
30
40
50
Output Current (A)
Figure 13: Ishare/Imon pin Voltage vs. Output Load Current.
Product # NQ60W60HGx40
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Figure 14: Output voltage response for 28V input; 12V, 28V, 48V, 60V output to
step change in load current (50%-75%-50% pf Iout max; di/dt=0.1A/uS). Vout
(2V/div); (1mS/div)
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Doc.# 005-0006097 Rev. D
06/07/16
Page 8 of 13
Input:
Outputs:
Current:
Package
Technical Specification
9-60 V
0 - 60V
40A
Half-brick
Standards & Qualifications
Parameter
Notes & Conditions
STANDARDS COMPLIANCE
CAN/CSA-C22.2 No.60950-1:2007/A2:2014
UL 60950-1:2007/A2:2014
EN 60950-1:2006/A2:2013
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.
Parameter
QUALIFICATION TESTING
Life Test
Vibration
Mechanical Shock
Temperature Cycling
Power/Thermal Cycling
Design Marginality
Humidity
Solderability
Altitude
# Units Test Conditions
32
5
5
10
5
5
5
15 pins
2
95% rated Vin and load, units at derating point, 1000 hours
10-55 Hz sweep, 0.060" total excursion, 1 min./sweep, 120 sweeps for 3 axis
100g minimum, 2 drops in x, y and z axis
-40 °C to 100 °C, unit temp. ramp 15 °C/min., 500 cycles
Toperating = min to max, Vin = min to max, full load, 100 cycles
Tmin-10 °C to Tmax+10 °C, 5 °C steps, Vin = min to max, 0-105% load
85 °C, 95% RH, 1000 hours, continuous Vin applied except 5 min/day
MIL-STD-883, method 2003
70,000 feet (21 km), see Note
Note: A conductive cooling design is generally needed for high altitude applications because of naturally poor convective cooling at rare atmospheres.
Product # NQ60W60HGx40
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Doc.# 005-0006097 Rev. D
06/07/16
Page 9 of 13
Input:
Outputs:
Current:
Package
Application Section
BASIC OPERATION AND FEATURES
9-60 V
0 - 60V
40A
Half-brick
CONTROL FEATURES
REMOTE ON/OFF: Only Negative On/Off logic is available
in the converter series: logic high at the input turns the
converter Off while a logic low turns in On. Timing of this
is shown in Figures 7, 8. A high level can be driven to any
voltage between 1.5V and 3.3V, or simply left floating as
the unit contains an internal 25K& pull-up to 5.0V. The pin
can be pulled low (to Vsense-) by an optocoupler, an opensource/drain transistor or wired permanently to Vsense-.
The converter runs at a fixed frequency with a predictable
To provide noise immunity the input has 0.3V of hysteresis.
EMI performance.
This half-brick converter uses the industry standard footprint Multiple units that have a common Vsense- connection
and pin-out configuration. A typical V-I characteristic, with can be controlled by the same On/Off signal, but it is
Vsetpoint=50V and Isetpoint=28A, when operating from recommended that a small schottky diode be added to
each input as shown in Figure B.
Vin=30V, is shown in Figure A.
This converter consists of integrated buck and boost
converters, both controlled simultaneously by a digital
controller. It automatically changes operating mode (buck
mode or boost) when the line voltage or output set point
changes. Very high efficiency is maintained over wide input
and output ranges by shifting operational modes and use of
synchronous rectifiers.
Vin1+
+Vin
On/Off
70
Vo=Vmax
Vin=60V
+Vout
Vout1+
Vsense+
HVNQ
DC-DC
Converter
Vsense-
60
Vin=50V
-Vin
-Vout
+Vin
+Vout
Output Voltage (V)
50
40
Vout-
Vin=40V
Increase
Vsetpoint
Vin2+
Increasing
Vin
Vin=30V
On/Off
30
Vin=20V
On/Off
20
HVNQ
DC-DC
Converter
Vsense-
Vin=10V
10
Vout2+
Vsense+
-Vin
Increase
Isetpoint
-Vout
0
0
5
10
15
20
25
Output Current (A)
30
35
40
45
Figure B:
CLOCK SYNCHRONIZATION: The module will
synchronize its switching to a clock signal at the SyncIn pin
(relative to Vsense-) of between 200 and 300KHz. For noise
immunity, the input has 0.1V hysteresis. It can be driven
by any standard logic gate. The input has an internal 5KΩ
pull-up to 3.3V; if unused, leave this input floating or tie it
directly to Vsense-.
Figure A
OUTPUT VOLTAGE SETPOINT: The output voltage can
be programmed to any voltage between 0 V dc and Vmax
by connecting one resistor between the Vset pin (6) and
Vsense- (5); See Figure C. For a desired output voltage,
the value of the resistor should be:
Rvset(Vset) =
Product # NQ60W60HGx40
Phone 1-888-567-9596
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[(
11830 x Vmax
Vset + 0.058 x Vmax
Doc.# 005-0006097 Rev. D
)
-10912
06/07/16
]
(Ω)
Page 10 of 13
Input:
Outputs:
Current:
Package
Application Section
Vin+
+Vin
Cin
On/Off
Iset
+Vout
Vout+
Vsense+
HVNQ
DC-DC
Converter
Cout
Vset
Rvset
Vsense-
Riset
-Vout
-Vin
Vin-
Vout-
Figure C:
9-60 V
0 - 60V
40A
Half-brick
PROTECTION FEATURES
Input Under-Voltage Lockout: The converter is designed
to turn off when the input voltage is too low, helping avoid
an input system instability problem, described in more detail
in the application note titled “Input System Instability”. The
lockout circuitry is a comparator with DC hysteresis. When
the input voltage is rising, it must exceed the typical TurnOn Voltage Threshold value (listed on the specification page)
before the converter will turn on. Once the converter is on,
the input voltage must fall below the typical Turn-Off Voltage
Threshold value before the converter will turn off.
Alternatively, the Vset pin can be driven from an external
voltage source: Undriven, this pin floats at 2.5V which sets Output Current Shutdown: To provide protection in an
the output to 0V. See Figure 10 for the large scale dynamics output short condition, the unit is equipped with internal
short circuit protection. When the short-circuit protection is
of this input.
triggered, the converter shuts down and then waits an inhibit
Vset
time (~100ms), after which it tries to turn on again. If the
Vvset(Vset) =
2.366 – 2.316
V
Vmax
short condition remains, the current limit circuit will limit the
See Figure 9
output current. The unit will return to normal operation once
where:
the fault condition is removed.
Vset = desired output voltage setpoint
Internal Over-Voltage Protection: To fully protect from
Vmax = maximum rated output voltage (60V)
excessive output voltage, the unit contains an output overOUTPUT CURRENT SETPOINT: The maximum output voltage shutdown that is fixed at ~110% of Vmax. If this
current (effectively the current limit) can be reduced to limit is reached, the converter shuts down and then waits an
any value between 0 and Imax by connecting one resistor inhibit time (~100ms), after which it restsarts.
(
)
between the Iset pin (B) and Vsense- (5); see Figure C. The
Over-Temperature Shutdown: Two sensors in the
value of the resistor should be:
module monitor the temperature of both the buck and boost
sections. When the temperature at either sensor exceeds the
0.0469 Imax + Iset
RIset(Iset) =
*10200 -10
(Ω)
Over Temperature Shutdown value, the converter is disabled.
1.153 Imax - Iset
It will restart normally when it then cools by the amount of
Alternatively, the Iset pin can be driven from an external voltage source:
the Over-Temperature Shutdown Hysteresis.
[(
Viset(Iset)=
(
)
0.0953+2.085
]
* Iset/Imax
)
V
where:
Iset = desired output current setpoint
Imax = maximum rated output current (40A)
Undriven, the Iset pin floats to 2.5V which sets the current
limit at its nominal value of 115%*Imax. See Figure 12 for
the large signal dynamics of this control.
Product # NQ60W60HGx40
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Doc.# 005-0006097 Rev. D
06/07/16
Page 11 of 13
Input:
Outputs:
Current:
Package
Application Section
APPLICATION CONSIDERATIONS
9-60 V
0 - 60V
40A
Half-brick
Cin2
Input filtering: These modules should be connected to a
low-impedance source. A highly inductive source can affect
the stability of the module. An input capacitor must be placed
adjacent to the input pins of the module to minimize input
ripple voltage and ensure stability. See SynQor's application
note titled Input System Stability for guidance on selecting
appropriate input filter elements.
Vin+
+Vin
Cin1
On/Off
Riset
Iset
+Vout
Vin-,Vout+
Vsense+
HVNQ
DC-DC
Converter
Cout
Vset
Rvset
Vsense-Vout
-Vin
Vout-
http://www.synqor.com/documents/appnotes/appnt_System_Instability.pdf
Figure D: Negative output setup
Output capacitance: An output capacitor of at least
100uF with an ESR of ~50mOhms is recommended to damp Note that all control signals are referenced to Vsense-, which
the resonance of the output filter. More capacitance can be in this arrangement is at Vout- potential.
added to improve dynamic response to load variation; there
is not upper limit on the value of the output capacitance.
Very large output capacitors may slow the converter's start
up time due to the current required to charge them being
Vin+
+Vin
+Vout
limited by current limit or Isetpoint.
Vout+
Remote sense: In the event of an open sense line, the
module maintains output voltage regulation via internal
resistors between its Vsense+ and +Vout, and Vsense- and
-Vout pins. To avoid damaging those resistors, maintain
the voltage differentials to within the limits in ABSOLUTE
MAXIMUM RATINGS at all times.
On/Off
Ishare
Cin
+Vin
On/Off
for Vin < Vout
-Vin
where Imax = Maximum rated output current
Vout
)
Cout
Vout-
Ishare
Vin
Rvset
-Vout
-Vin
for Vin >Vout
Ilimit = 1.12 x Imax (Amps)
(
Vset
Vsense-
Current limit: Available current is limited by maximum
output current in buck mode (Vin>Vout), and by maximum
input current in boost mode (Vin<Vout).
Ilimit = 1.12 x Imax
HVNQ
DC-DC
Converter
+Vout
Vsense+
HVNQ
DC-DC
Converter
Vset
Rvset
Vsense-Vout
(Amps)
Figure E: Setup for output current sharing
Generating Negative output voltage (inversion): The
circuit shown in Figure D can be used to generate a negative
Current Sharing: In applications requiring more power
output voltage from a positive input.
than can be supplied from a single converter, multiple units
can be arranged to share the load as shown in Figure E.
The units should all be set at the same output voltage setpoint
by using identical Rvset resistors. In this arrangement, the
level of the Ishare/Imon bus is that of the average current
delivered by each converter.
Product # NQ60W60HGx40
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0006097 Rev. D
06/07/16
Page 12 of 13
Input:
Outputs:
Current:
Package
Ordering Information
9-60 V
0 - 60V
40A
Half-brick
PART NUMBERING SYSTEM
ORDERING INFORMATION
The part numbering system for SynQor’s dc-dc converters
follows the format shown in the example below.
The tables below show the valid model numbers and ordering
options for converters in this product family. When ordering
SynQor converters, please ensure that you use the complete
15 character part number consisting of the 12 character base
part number and the additional 3 characters for options.
Add “-G” to the model number for 6/6 RoHS compliance.
NQ 6 0 W 6 0 H G C 4 0
N N F - G
6/6 RoHS
Options
(see
Ordering Information)
Input
Voltage
9-60 V
Model Number
Output Current
NQ60W60HGw40Nyz-G
Output
Voltage
0 - 60V
Max Output
Current
40A
Thermal Design
The following options must be included in place of the w x y z
spaces in the model numbers listed above.
Performance Level
Package Size
Output Voltage
Options Description: w x y z
Enable
Thermal Design
Pin Style
Feature Set
Logic
Mode:
Mode (see Ordering Information)
Input Voltage
Product Family
The first 12 characters comprise the base part number and
the last 3 characters indicate available options. The “-G”
suffix indicates 6/6 RoHS compliance.
W - Buck /
Boost
C - Encased with
Threaded
Baseplate
D - Encased with
Non-Threaded
Baseplate
V - Encased with
Flanged Baseplate
NNegative
N - 0.145"
R - 0.180"
Y - 0.250"
F - Current
Sharing /
Trimmable
current limit
Application Notes
A variety of application notes and technical white papers can
be downloaded in pdf format from our website.
RoHS Compliance: The EU led RoHS (Restriction of Hazardous
Substances) Directive bans the use of Lead, Cadmium,
Hexavalent Chromium, Mercury, Polybrominated Biphenyls
(PBB), and Polybrominated Diphenyl Ether (PBDE) in Electrical
and Electronic Equipment. This SynQor product is 6/6 RoHS
compliant. For more information please refer to SynQor’s
RoHS addendum available at our RoHS Compliance / Lead Free
Initiative web page or e-mail us at [email protected]
Contact SynQor for further information and to order:
Phone:
Toll Free:
Fax:
E-mail:
Web:
Address:
Product # NQ60W60HGx40
978-849-0600
888-567-9596
978-849-0602
[email protected]
www.synqor.com
155 Swanson Road
Boxborough, MA 01719
USA
Phone 1-888-567-9596
Not all combinations make valid part numbers, please contact
SynQor for availability. See the Product Summary web page for
more options.
PATENTS
SynQor holds numerous U.S. patents, one or more of which apply to most of its power conversion
products. Any that apply to the product(s) listed in this document are identified by markings on
the product(s) or on internal components of the product(s) in accordance with U.S. patent laws.
SynQor’s patents include the following:
5,999,417
6,222,742
6,545,890
6,594,159
6,894,468
6,896,526
6,927,987
7,050,309
7,072,190
7,085,146
7,119,524
7,269,034
7,272,021
7,272,023
7,558,083
7,564,702
7,765,687
7,787,261
8,023,290
8,149,597
8,493,751
8,644,027
9,143,042
WARRANTY
SynQor offers a two (2) year limited warranty. Complete warranty information
is listed on our website or is available upon request from SynQor.
www.synqor.com
Doc.# 005-0006097 Rev. D
06/07/16
Page 13 of 13
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