40A/72W

Technical
Specification
IQ24xxxQTXxxx
18-36 V
50 V
1.8-48 V 120 W
Continuous Input Transient Input
Outputs
Max Power
2250 Vdc
Quarter-brick
Isolation
DC-DC Converter
The InQor quarter-brick converter series is composed
of next-generation, board-mountable, isolated, fixed
switching frequency dc-dc converters that use synchronous
rectification to achieve extremely high power conversion
efficiency. Each module is supplied completely encased to
provide protection from the harsh environments seen in
many industrial and transportation applications.
18
240
High efficiency, up to 93% at full rated load current
Delivers full power with minimal derating
Operating input voltage range: 18-36 V
Fixed frequency switching provides predictable EMI
No minimum load requirement
Protection Features
Mechanical Features
•
•
•
•
S-G
40 A
RT
I Q C CONVE V OUT @
D
1.8
DCN
V
I
6
18-3
Operational Features
•
•
•
•
•
R
40N
Q T C ER
Industry standard Quarter-brick pin-out configuration
Size: 2.386" x 1.536" x 0.500" (60.60 x 39.01 x 12.70 mm)
Total weight: 2.9 oz. (84 g)
Flanged baseplate version available
•
•
•
•
•
Input under-voltage lockout
Output current limit and short circuit protection
Active back drive current limit
Output over-voltage protection
Thermal shutdown
Control Features
• On/Off control referenced to input side
• Remote sense for improved output voltage control
• Wide output voltage trim range
Safety Features
•
•
•
•
UL 60950-1/R:2011-12 Basic Insulation
CAN/CSA-C22.2 No. 60950-1/A1:2011
EN 60950-1/A12:2011
RoHS compliant (see last page)
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
CONTENTS
Page No.
Family Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.8Vout Electrical Characteristics & Figures . . . . . . . . . . . . . . . . . . . . . . 4
3.3Vout Electrical Characteristics & Figures . . . . . . . . . . . . . . . . . . . . . . 6
5.0Vout Electrical Characteristics & Figures . . . . . . . . . . . . . . . . . . . . . . 8
7.0Vout Electrical Characteristics & Figures . . . . . . . . . . . . . . . . . . . . . 10
12Vout Electrical Characteristics & Figures . . . . . . . . . . . . . . . . . . . . . 12
15Vout Electrical Characteristics & Figures . . . . . . . . . . . . . . . . . . . . . 14
24Vout Electrical Characteristics & Figures . . . . . . . . . . . . . . . . . . . . . 16
30Vout Electrical Characteristics & Figures . . . . . . . . . . . . . . . . . . . . . 18
48Vout Electrical Characteristics & Figures . . . . . . . . . . . . . . . . . . . . . 20
Application Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Standards & Qualification Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Standard Mechanical Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Flanged Mechanical Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 1
Technical
Specification
IQ24xxxQTXxxx
IQ24-QT FAMILY ELECTRICAL CHARACTERISTICS (all output voltages)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24 Vdc 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
Min.
Typ.
Max.
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
-1
60
Operating
36
Operating Transient Protection
50
Isolation Voltage
Input to Output
2250
Input to Baseplate
2250
Output to Baseplate
2250
Operating Temperature
-40
100
Storage Temperature
-45
125
Voltage at ON/OFF input pin
-2
18
INPUT CHARACTERISTICS
Operating Input Voltage Range
18
24
36
Input Under-Voltage Lockout
Turn-On Voltage Threshold
17.1
17.5
17.9
Turn-Off Voltage Threshold
16.1
16.5
16.9
Lockout Voltage Hysteresis
220.0
Input Over-Voltage Shutdown
Recommended External Input Capacitance
100.0
Input Filter Component Values (L\C)
1.0\6.6
DYNAMIC CHARACTERISTICS
Turn-On Transient
Turn-On Time
9
Start-Up Inhibit Time
180
200
220
Output Voltage Overshoot
0
ISOLATION CHARACTERISTICS
Isolation Voltage (dielectric strength)
Isolation Resistance
30
Isolation Capacitance (input to output)
1000
TEMPERATURE LIMITS FOR POWER DERATING CURVES
Semiconductor Junction Temperature
125
PCB Temperature
125
Transformer Temperature
125
Maximum Baseplate Temperature, Tb
100
FEATURE CHARACTERISTICS
Switching Frequency
230
250
270
ON/OFF Control
Off-State Voltage
2.4
18
On-State Voltage
-2
0.8
ON/OFF Control
Pull-Up Voltage
5
Pull-Up Resistance
50
Over-Temperature Shutdown OTP Trip Point
125
Over-Temperature Shutdown Restart Hysteresis
10
RELIABILITY CHARACTERISTICS
Calculated MTBF (Telcordia) TR-NWT-000332
1.49
Calculated MTBF (MIL-217) MIL-HDBK-217F
1.31
Field Demonstrated MTBF
Note 1: Higher values of isolation capacitance can be added externally to the module.
Note 2: See “Input System Instability” in the Application Considerations section.
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Units Notes & Conditions
V
V
V
Vdc
Vdc
Vdc
°C
°C
V
Continuous
Continuous
Baseplate temperature
V
V
V
V
V
µF
µH\µF
ms
ms
%
Not Available
Typical ESR 0.1-0.2 Ω; see Note 2
Internal values; see Figure D
Full load, Vout = 90 % nom. (from enable)
Figure E
Maximum Output Capacitance
See Absolute Maximum Ratings
MΩ
pF
See Note 1
°C
°C
°C
°C
Package rated to 150 °C
UL rated max operating temp 130 °C
kHz
Isolation stage switching freq. is half this
V
Application notes Figures A & B
V
kΩ
°C
°C
Average PCB Temperature
106 Hrs. Tb = 70 °C
106 Hrs. Tb = 70 °C
106 Hrs. See our website for details
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 2
Technical
Specification
IQ24xxxQTXxxx
Family Figures (all output voltages)
120
Typical Current Limit Inception Point
Nominal Vout
Output Voltage (%)
100
80
Current Limit Shutdown Voltage
60
40
Vin min
Vin nom
20
Vin max
0
0
10
20
30
40
50
60
70
80
90
100 110 120 130 140 150
Load Current (%)
Common Figure 1: Typical startup waveform. Input voltage pre-applied, ON/
OFF Pin on Ch 2. Output voltage normalized.
Common Figure 2: Output voltage vs. load current showing typical current limit
curves and converter shutdown points.
100,000.0
1.8 V
10,000.0
3.3 V
5V
12 V
15 V
Trim Resistance (kOhms)
Trim Resistance (kOhms)
100,000.0
1,000.0
100.0
10.0
0
1
2
3
4
5
6
7
8
9
Increase in Vout (%)
28 V
40 V
48 V
10,000.0
1,000.0
100.0
10
24 V
0
1
2
3
4
5
6
7
8
9
10
Increase in Vout (%)
Common Figure 3: Trim graph for trim-up 1.8 to 12 V outputs.
Common Figure 4: Trim graph for trim-up 15 to 48 V outputs.
10,000.0
Trim Resistance (kOhms)
All voltages
1,000.0
100.0
10.0
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20
Decrease in Vout (%)
Common Figure 5: Trim graph for trim down.
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 3
Input:18-36 V
Output:1.8 V
Current:40 A
Part No.:IQ24018QTx40
Technical Specification
IQ24018QTx40 ELECTRICAL CHARACTERISTICS (1.8 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24 Vdc 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
Min.
Typ.
Max.
Units Notes & Conditions
INPUT CHARACTERISTICS
Maximum Input Current
6.3
A
Vin min; trim up; in current limit
No-Load Input Current (enabled)
100
130
mA
Disabled Input Current
1.5
2
mA
Response to Input Transient
0.08
V
See Figure 6
Input Terminal Ripple Current
40
mA
RMS
Recommended Input Fuse
20
A
Fast acting fuse recommended; see Note 3
OUTPUT CHARACTERISTICS
Output Voltage Set Point
1.782
1.800
1.818
V
Output Voltage Regulation
Over Line
±0.1
±0.3
%
Over Load
±0.1
±0.3
%
Over Temperature
-27
27
mV
Total Output Voltage Range
1.755
1.845
V
Over sample, line, load, temperature & life
Output Voltage Ripple and Noise
20 MHz bandwidth; see Note 1
Peak-to-Peak
32
60
mV
Full load
RMS
6.1
10
mV
Full load
A
Operating Output Current Range
0
40
Subject to thermal derating
Output DC Current Limit Inception
44.0
48.0
52.0
A
Output voltage 10% Low
Output DC Current Limit Shutdown Voltage
0.7
V
Back-Drive Current Limit while Enabled
1.2
A
Negative current drawn from output pins
Back-Drive Current Limit while Disabled
15
mA
Negative current drawn from output pins
Maximum Output Capacitance
10,000
µF
Vout nominal at full load (resistive load)
Output Voltage during Load Current Transient
Step Change in Output Current (0.2 A/µs)
76
mV
50 % to 75 % to 50 % Iout max; see Figure 5
Settling Time
100
µs
To within 1 % Vout nom; see Figure 5
Output Voltage Trim Range
-20
10
%
Across Pins 8 & 4; Common Figures 3-5
Output Voltage Remote Sense Range
10
%
Across Pins 8 & 4
Output Over-Voltage Protection
2.1
2.2
2.3
V
Over full temp range
EFFICIENCY
100 % Load
84
%
See Figure 1 for efficiency curve
50 % Load
87
%
See Figure 1 for efficiency curve
Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum capacitors. For applications requiring reduced output voltage ripple and
noise, consult SynQor applications support (e-mail: [email protected])
Note 3: Safety certification requires the use of a fuse rated at or below this value
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 4
Input:18-36 V
Output:1.8 V
Current:40 A
Part No.:IQ24018QTx40
Technical Specification
95
16
90
14
Power Dissipation (W)
Efficiency (%)
85
80
75
70
18 Vin
65
24 Vin
0
5
10
15
20
25
30
35
10
8
6
4
18 Vin
24 Vin
2
36 Vin
60
12
0
40
36 Vin
0
5
10
15
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
nominal, and maximum input voltage at 25 °C.
25
30
35
40
Figure 2: Power dissipation at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25 °C.
45
45
40
40
35
35
30
30
25
25
Iout (A)
Iout (A)
20
Load Current (A)
20
20
15
15
10
400 LFM (2.0 m/s)
10
5
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
5
0
50
60
70
80
90
100
110
0
Baseplate Temperature (°C)
100 LFM (0.5 m/s)
0
25
40
55
70
85
Ambient Air Temperature (°C)
Figure 3: Maximum load current vs. baseplate temperature when conductively
cooled. Note: The system design must provide a suitable thermal path that
maintains the baseplate temperature below 100 °C.
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating
vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air
flows across the converter from input to output (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50 % -75 %
-50 % of Iout(max); dI/dt = 0.2 A/µs). Load cap: 15 µF tantalum cap and 1µF
ceramic cap. Ch 1: Vout, Ch 2: Iout (10 A/div).
Figure 6: Output voltage response to step-change in input voltage (nominal
to maximum), at full load current. Load cap: 100 µF, electrolytic output
capacitance. Ch 1: Vout, Ch 2: Vin.
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 5
Input:18-36 V
Output:3.3 V
Current:30 A
Part No.:IQ24033QTx30
Technical Specification
IQ24033QTx30 ELECTRICAL CHARACTERISTICS (3.3 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24 Vdc 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
Min.
Typ.
Max.
Units Notes & Conditions
8.1
A
100
130
mA
Disabled Input Current
1.5
2
mA
Response to Input Transient
0.12
V
40
mA
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current (enabled)
Input Terminal Ripple Current
Recommended Input Fuse
20
A
3.300
3.333
V
±0.1
±0.3
%
±0.1
Vin min; trim up; in current limit
See Figure 6
RMS
Fast acting fuse recommended; see Note 3
OUTPUT CHARACTERISTICS
Output Voltage Set Point
3.267
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
±0.3
%
-50
50
mV
3.217
3.383
V
38
80
mV
Full load
7.4
10
mV
Full load
30
A
Subject to thermal derating
39.0
A
Output voltage 10% Low
Output Voltage Ripple and Noise
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Peak-to-Peak
RMS
Operating Output Current Range
0
Output DC Current Limit Inception
33.0
36.0
Output DC Current Limit Shutdown Voltage
1.6
V
Back-Drive Current Limit while Enabled
0.7
A
Negative current drawn from output pins
Back-Drive Current Limit while Disabled
15
mA
Negative current drawn from output pins
µF
Vout nominal at full load (resistive load)
Maximum Output Capacitance
10,000
Output Voltage during Load Current Transient
Step Change in Output Current (0.2 A/µs)
112
mV
50 % to 75 % to 50 % Iout max; see Figure 5
Settling Time
100
µs
To within 1 % Vout nom; see Figure 5
10
%
Across Pins 8 & 4; Common Figures 3-5
10
%
Across Pins 8 & 4
4.2
V
Over full temp range
%
See Figure 1 for efficiency curve
Output Voltage Trim Range
-20
Output Voltage Remote Sense Range
Output Over-Voltage Protection
3.9
4.0
EFFICIENCY
100 % Load
90
50 % Load
91
%
See Figure 1 for efficiency curve
Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum capacitors. For applications requiring reduced output voltage ripple and
noise, consult SynQor applications support (e-mail: [email protected])
Note 3: Safety certification requires the use of a fuse rated at or below this value
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 6
Input:18-36 V
Output:3.3 V
Current:30 A
Part No.:IQ24033QTx30
95
14
90
12
85
10
Power Dissipation (W)
Efficiency (%)
Technical Specification
80
75
70
8
6
4
18 Vin
18 Vin
24 Vin
65
24 Vin
2
36 Vin
36 Vin
60
0
0
5
10
15
Load Current (A)
20
25
30
10
15
Load Current (A)
20
25
30
Figure 2: Power dissipation at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25 °C.
35
35
30
30
25
25
20
5
20
Iout (A)
Iout (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
nominal, and maximum input voltage at 25 °C.
0
15
15
10
400 LFM (2.0 m/s)
10
300 LFM (1.5 m/s)
5
200 LFM (1.0 m/s)
5
100 LFM (0.5 m/s)
0
50
60
70
80
90
100
110
0
Baseplate Temperature (°C)
0
25
40
55
70
85
Ambient Air Temperature (°C)
Figure 3: Maximum load current vs. baseplate temperature when conductively
cooled. Note: The system design must provide a suitable thermal path that
maintains the baseplate temperature below 100 °C.
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating
vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air
flows across the converter from input to output (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50 % -75 %
-50 % of Iout(max); dI/dt = 0.2 A/µs). Load cap: 15 µF tantalum cap and 1 µF
ceramic cap. Ch 1: Vout, Ch 2: Iout (10 A/div).
Figure 6: Output voltage response to step-change in input voltage (nominal
to maximum), at full load current. Load cap: 100 µF, electrolytic output
capacitance. Ch 1: Vout, Ch 2: Vin.
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 7
Input:18-36 V
Output:5 V
Current:24 A
Part No.:IQ24050QTx24
Technical Specification
IQ24050QTx24 ELECTRICAL CHARACTERISTICS (5.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24 Vdc 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
Min.
Typ.
Max.
Units Notes & Conditions
9.8
A
100
130
mA
Disabled Input Current
1.5
2
mA
Response to Input Transient
0.16
V
40
mA
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current (enabled)
Input Terminal Ripple Current
Recommended Input Fuse
20
A
5.000
5.050
V
±0.1
±0.3
%
±0.1
Vin min; trim up; in current limit
See Figure 6
RMS
Fast acting fuse recommended; see Note 3
OUTPUT CHARACTERISTICS
Output Voltage Set Point
4.950
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
±0.3
%
-75
75
mV
4.875
5.125
V
42
80
mV
Full load
8.2
20
mV
Full load
24
A
Subject to thermal derating
31.2
A
Output voltage 10% Low
Output Voltage Ripple and Noise
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Peak-to-Peak
RMS
Operating Output Current Range
0
Output DC Current Limit Inception
26.4
28.8
Output DC Current Limit Shutdown Voltage
2.5
V
Back-Drive Current Limit while Enabled
0.6
A
Negative current drawn from output pins
Back-Drive Current Limit while Disabled
15
mA
Negative current drawn from output pins
µF
Vout nominal at full load (resistive load)
Maximum Output Capacitance
8,000
Output Voltage during Load Current Transient
Step Change in Output Current (0.1 A/µs)
160
mV
50 % to 75 % to 50 % Iout max; see Figure 5
Settling Time
100
µs
To within 1 % Vout nom; see Figure 5
10
%
Across Pins 8 & 4; Common Figures 3-5
10
%
Across Pins 8 & 4
6.4
V
Over full temp range
%
See Figure 1 for efficiency curve
Output Voltage Trim Range
-20
Output Voltage Remote Sense Range
Output Over-Voltage Protection
5.9
6.1
EFFICIENCY
100 % Load
90
50 % Load
92
%
See Figure 1 for efficiency curve
Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum capacitors. For applications requiring reduced output voltage ripple and
noise, consult SynQor applications support (e-mail: [email protected])
Note 3: Safety certification requires the use of a fuse rated at or below this value
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 8
Input:18-36 V
Output:5 V
Current:24 A
Part No.:IQ24050QTx24
Technical Specification
18
95
16
90
14
Power Dissipation (W)
Efficiency (%)
85
80
75
70
18 Vin
24 Vin
65
10
8
6
4
18 Vin
24 Vin
2
36 Vin
60
36 Vin
0
0
5
10
15
Load Current (A)
20
0
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
nominal, and maximum input voltage at 25 °C.
5
10
15
20
Load Current (A)
Figure 2: Power dissipation at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25 °C.
30
30
25
25
20
20
Iout (A)
Iout (A)
12
15
15
10
10
400 LFM (2.0 m/s)
5
300 LFM (1.5 m/s)
5
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0
50
60
70
80
90
100
110
0
Baseplate Temperature (°C)
0
25
40
55
70
85
Ambient Air Temperature (°C)
Figure 3: Maximum load current vs. baseplate temperature when conductively
cooled. Note: The system design must provide a suitable thermal path that
maintains the baseplate temperature below 100 °C.
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating
vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air
flows across the converter from input to output (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50 % -75 %
50 % of Iout(max); dI/dt = 0.1 A/µs). Load cap: 15 µF tantalum cap and 1 µF
ceramic cap. Ch 1: Vout, Ch 2: Iout (5 A/div).
Figure 6: Output voltage response to step-change in input voltage (nominal
to maximum), at full load current. Load cap: 100 µF, electrolytic output
capacitance. Ch 1: Vout, Ch 2: Vin.
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 9
Input:18-36 V
Output:7 V
Current:17 A
Part No.:IQ24070QTx17
Technical Specification
IQ24070QTx17 ELECTRICAL CHARACTERISTICS (7.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24 Vdc 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
Min.
Typ.
Max.
Units Notes & Conditions
9.5
A
110
140
mA
Disabled Input Current
1.5
2
mA
Response to Input Transient
0.16
V
40
mA
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current (enabled)
Input Terminal Ripple Current
Recommended Input Fuse
20
A
7.000
7.070
V
±0.1
±0.3
%
±0.1
Vin min; trim up; in current limit
See Figure 6
RMS
Fast acting fuse recommended; see Note 3
OUTPUT CHARACTERISTICS
Output Voltage Set Point
6.930
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
±0.3
%
-105
105
mV
6.825
7.175
V
48
100
mV
Full load
9.5
20
mV
Full load
17
A
Subject to thermal derating
22.1
A
Output voltage 10% Low
Output Voltage Ripple and Noise
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Peak-to-Peak
RMS
Operating Output Current Range
0
Output DC Current Limit Inception
18.7
20.4
Output DC Current Limit Shutdown Voltage
3.3
V
Back-Drive Current Limit while Enabled
0.5
A
Negative current drawn from output pins
Back-Drive Current Limit while Disabled
15
mA
Negative current drawn from output pins
µF
Vout nominal at full load (resistive load)
Maximum Output Capacitance
4,000
Output Voltage during Load Current Transient
Step Change in Output Current (0.1 A/µs)
210
mV
50 % to 75 % to 50 % Iout max; see Figure 5
Settling Time
100
µs
To within 1 % Vout nom; see Figure 5
10
%
Across Pins 8 & 4; Common Figures 3-5
10
%
Across Pins 8 & 4
8.9
V
Over full temp range
%
See Figure 1 for efficiency curve
Output Voltage Trim Range
-20
Output Voltage Remote Sense Range
Output Over-Voltage Protection
8.2
8.5
EFFICIENCY
100 % Load
92
50 % Load
92
%
See Figure 1 for efficiency curve
Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum capacitors. For applications requiring reduced output voltage ripple and
noise, consult SynQor applications support (e-mail: [email protected])
Note 3: Safety certification requires the use of a fuse rated at or below this value
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 10
Input:18-36 V
Output:7 V
Current:17 A
Part No.:IQ24070QTx17
95
14
90
12
85
10
Power Dissipation (W)
Efficiency (%)
Technical Specification
80
75
70
8
6
4
18 Vin
18 Vin
24 Vin
65
24 Vin
2
36 Vin
36 Vin
60
0
0
2
4
6
8
10
12
Load Current (A)
14
16
18
18
16
16
14
14
12
12
10
2
4
6
8
10
Load Current (A)
12
14
16
Figure 2: Power dissipation at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25 °C.
10
Iout (A)
Iout (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
nominal, and maximum input voltage at 25 °C.
0
8
6
8
6
4
400 LFM (2.0 m/s)
4
2
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
2
0
50
60
70
80
90
100
110
0
Baseplate Temperature (°C)
100 LFM (0.5 m/s)
0
25
40
55
70
85
Ambient Air Temperature (°C)
Figure 3: Maximum load current vs. baseplate temperature when conductively
cooled. Note: The system design must provide a suitable thermal path that
maintains the baseplate temperature below 100 °C.
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating
vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air
flows across the converter from input to output (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50 % -75 %
-50 % of Iout(max); dI/dt = 0.1 A/µs). Load cap: 15 µF tantalum cap and 1 µF
ceramic cap. Ch 1: Vout, Ch 2: Iout (5 A/div).
Figure 6: Output voltage response to step-change in input voltage (nominal
to maximum), at full load current. Load cap: 100 µF, electrolytic output
capacitance. Ch 1: Vout, Ch 2: Vin.
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 11
Input:18-36 V
Output:12 V
Current:10 A
Part No.:IQ24120QTx10
Technical Specification
IQ24120QTx10 ELECTRICAL CHARACTERISTICS (12.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24 Vdc 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
Min.
Typ.
Max.
Units Notes & Conditions
9.6
A
100
130
mA
Disabled Input Current
1.5
2
mA
Response to Input Transient
0.17
V
40
mA
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current (enabled)
Input Terminal Ripple Current
Recommended Input Fuse
20
A
12.00
12.12
V
±0.1
±0.3
%
±0.1
Vin min; trim up; in current limit
See Figure 6
RMS
Fast acting fuse recommended; see Note 3
OUTPUT CHARACTERISTICS
Output Voltage Set Point
11.88
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
±0.3
%
-180
180
mV
11.70
12.30
V
53
110
mV
Full load
10.6
20
mV
Full load
10
A
Subject to thermal derating
13.0
A
Output voltage 10% Low
Output Voltage Ripple and Noise
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Peak-to-Peak
RMS
Operating Output Current Range
0
Output DC Current Limit Inception
11.0
Output DC Current Limit Shutdown Voltage
12.0
5
V
Back-Drive Current Limit while Enabled
0.45
A
Negative current drawn from output pins
Back-Drive Current Limit while Disabled
15
mA
Negative current drawn from output pins
µF
Vout nominal at full load (resistive load)
Maximum Output Capacitance
1,500
Output Voltage during Load Current Transient
Step Change in Output Current (0.1 A/µs)
340
mV
50 % to 75 % to 50 % Iout max; see Figure 5
Settling Time
100
µs
To within 1 % Vout nom; see Figure 5
10
%
Across Pins 8&4; Common Figures 3-5; see Note 2
10
%
Across Pins 8 & 4
15.2
V
Over full temp range
%
See Figure 1 for efficiency curve
Output Voltage Trim Range
-20
Output Voltage Remote Sense Range
Output Over-Voltage Protection
14.0
14.6
EFFICIENCY
100 % Load
92
50 % Load
92
%
See Figure 1 for efficiency curve
Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum capacitors. For applications requiring reduced output voltage ripple and
noise, consult SynQor applications support (e-mail: [email protected])
Note 2: Trim-up range is limited below 10 % at lower line and full load. Contact SynQor applications support for more detail (email: [email protected]
com)
Note 3: Safety certification requires the use of a fuse rated at or below this value
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 12
Input:18-36 V
Output:12 V
Current:10 A
Part No.:IQ24120QTx10
Technical Specification
12
95
90
10
Power Dissipation (W)
Efficiency (%)
85
80
75
70
18 Vin
6
4
18 Vin
2
24 Vin
65
8
24 Vin
36 Vin
36 Vin
60
0
0
2
4
6
8
Load Current (A)
10
12
12
10
10
8
8
6
2
4
6
Load Current (A)
8
10
Figure 2: Power dissipation at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25 °C.
Iout (A)
Iout (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
nominal, and maximum input voltage at 25 °C.
0
4
6
4
400 LFM (2.0 m/s)
2
300 LFM (1.5 m/s)
2
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0
50
60
70
80
90
100
110
0
Baseplate Temperature (°C)
0
25
40
55
70
85
Ambient Air Temperature (°C)
Figure 3: Maximum load current vs. baseplate temperature when conductively
cooled. Note: The system design must provide a suitable thermal path that
maintains the baseplate temperature below 100 °C.
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating
vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air
flows across the converter from input to output (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50 % -75 %
-50 % of Iout(max); dI/dt = 0.1 A/µs). Load cap: 15 µF tantalum cap and 1 µF
ceramic cap. Ch 1: Vout, Ch 2: Iout (2.5 A/div).
Figure 6: Output voltage response to step-change in input voltage (nominal
to maximum), at full load current. Load cap: 100 µF, electrolytic output
capacitance. Ch 1: Vout, Ch 2: Vin.
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 13
Input:18-36 V
Output:15 V
Current:8 A
Part No.:IQ24150QTx08
Technical Specification
IQ24150QTx08 ELECTRICAL CHARACTERISTICS (15.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24 Vdc 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
Min.
Typ.
Max.
Units Notes & Conditions
9.6
A
100
130
mA
Disabled Input Current
1.5
2
mA
Response to Input Transient
0.22
V
40
mA
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current (enabled)
Input Terminal Ripple Current
Recommended Input Fuse
20
A
15.00
15.15
V
±0.1
±0.3
%
±0.1
Vin min; trim up; in current limit
See Figure 6
RMS
Fast acting fuse recommended; see Note 3
OUTPUT CHARACTERISTICS
Output Voltage Set Point
14.85
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
±0.3
%
-225
225
mV
14.62
15.38
V
57
110
mV
Full load
11.4
20
mV
Full load
8
A
Subject to thermal derating
10.4
A
Output voltage 10% Low
Output Voltage Ripple and Noise
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Peak-to-Peak
RMS
Operating Output Current Range
0
Output DC Current Limit Inception
8.8
9.6
Output DC Current Limit Shutdown Voltage
6.5
V
Back-Drive Current Limit while Enabled
0.3
A
Negative current drawn from output pins
Back-Drive Current Limit while Disabled
15
mA
Negative current drawn from output pins
µF
Vout nominal at full load (resistive load)
Maximum Output Capacitance
1,000
Output Voltage during Load Current Transient
Step Change in Output Current (0.1 A/µs)
520
mV
50 % to 75 % to 50 % Iout max; see Figure 5
Settling Time
50
µs
To within 1 % Vout nom; see Figure 5
10
%
Across Pins 8&4; Common Figures 3-5; see Note 2
10
%
Across Pins 8 & 4
19.1
V
Over full temp range
%
See Figure 1 for efficiency curve
Output Voltage Trim Range
-20
Output Voltage Remote Sense Range
Output Over-Voltage Protection
17.6
18.3
EFFICIENCY
100 % Load
92
50 % Load
93
%
See Figure 1 for efficiency curve
Note 1: Output is terminated with 1 µF ceramic and 15 µF low-ESR tantalum capacitors. For applications requiring reduced output voltage ripple and
noise, consult SynQor applications support (e-mail: [email protected])
Note 2: Trim-up range is limited below 10 % at lower line and full load. Contact SynQor applications support for more detail (email: [email protected]
com)
Note 3: Safety certification requires the use of a fuse rated at or below this value
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 14
Input:18-36 V
Output:15 V
Current:8 A
Part No.:IQ24150QTx08
95
14
90
12
85
10
Power Dissipation (W)
Efficiency (%)
Technical Specification
80
75
70
8
6
4
18 Vin
18 Vin
24 Vin
65
24 Vin
2
36 Vin
36 Vin
60
0
0
1
2
3
4
5
Load Current (A)
6
7
8
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
nominal, and maximum input voltage at 25 °C.
0
2
3
4
5
Load Current (A)
6
7
8
Figure 2: Power dissipation at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25 °C.
9
9
8
8
7
7
6
6
5
5
Iout (A)
Iout (A)
1
4
4
3
3
2
400 LFM (2.0 m/s)
2
1
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
1
0
50
60
70
80
90
100
110
0
Baseplate Temperature (°C)
100 LFM (0.5 m/s)
0
25
40
55
70
85
Ambient Air Temperature (°C)
Figure 3: Maximum load current vs. baseplate temperature when conductively
cooled. Note: The system design must provide a suitable thermal path that
maintains the baseplate temperature below 100 °C.
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating
vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air
flows across the converter from input to output (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50 % - 75 %
-50 % of Iout(max); dI/dt = 0.1 A/µs). Load cap: 15 µF tantalum cap and 1 µF
ceramic cap. Ch 1: Vout, Ch 2: Iout (2.5 A/div).
Figure 6: Output voltage response to step-change in input voltage (nominal
to maximum), at full load current. Load cap: 100 µF, electrolytic output
capacitance. Ch 1: Vout, Ch 2: Vin.
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 15
Input:18-36 V
Output:24 V
Current:5 A
Part No.:IQ24240QTx05
Technical Specification
IQ24240QTx05 ELECTRICAL CHARACTERISTICS (24.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24 Vdc 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
Min.
Typ.
Max.
Units Notes & Conditions
9.6
A
No-Load Input Current (enabled)
100
130
mA
Disabled Input Current
1.5
2
mA
Response to Input Transient
0.6
V
Input Terminal Ripple Current
40
mA
INPUT CHARACTERISTICS
Maximum Input Current
Recommended Input Fuse
20
A
24.00
24.24
V
±0.1
±0.3
%
±0.1
Vin min; trim up; in current limit
See Figure 6
RMS
Fast acting fuse recommended; see Note 3
OUTPUT CHARACTERISTICS
Output Voltage Set Point
23.76
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
±0.3
%
-360
360
mV
23.40
24.60
V
65
130
mV
Full load
13.1
30
mV
Full load
5
A
Subject to thermal derating
6.5
A
Output voltage 10% Low
Output Voltage Ripple and Noise
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Peak-to-Peak
RMS
Operating Output Current Range
0
Output DC Current Limit Inception
5.5
Output DC Current Limit Shutdown Voltage
6.0
12
V
Back-Drive Current Limit while Enabled
0.12
A
Negative current drawn from output pins
Back-Drive Current Limit while Disabled
15
mA
Negative current drawn from output pins
µF
Vout nominal at full load (resistive load)
1300
mV
50 % to 75 % to 50 % Iout max; see Figure 5
50
µs
To within 1 % Vout nom; see Figure 5
10
%
Across Pins 8 & 4; Common Figures 3-5
10
%
Across Pins 8 & 4
30.5
V
Over full temp range
%
See Figure 1 for efficiency curve
Maximum Output Capacitance
400
Output Voltage during Load Current Transient
Step Change in Output Current (0.8 A/µs)
Settling Time
Output Voltage Trim Range
-20
Output Voltage Remote Sense Range
Output Over-Voltage Protection
28.1
29.3
EFFICIENCY
100 % Load
92
50 % Load
92
%
See Figure 1 for efficiency curve
Note 1: Output is terminated with 1 µF ceramic capacitor. For applications requiring reduced output voltage ripple and noise, consult SynQor applications
support (e-mail: [email protected])
Note 3: Safety certification requires the use of a fuse rated at or below this value
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 16
Input:18-36 V
Output:24 V
Current:5 A
Part No.:IQ24240QTx05
95
14
90
12
85
10
Power Dissipation (W)
Efficiency (%)
Technical Specification
80
75
70
8
6
4
18 Vin
18 Vin
24 Vin
65
24 Vin
2
36 Vin
36 Vin
60
0
0
1
2
3
4
Load Current (A)
5
1
2
3
Load Current (A)
4
5
Figure 2: Power dissipation at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25 °C.
6
6
5
5
4
4
Iout (A)
Iout (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
nominal, and maximum input voltage at 25 °C.
0
3
3
2
2
400 LFM (2.0 m/s)
1
300 LFM (1.5 m/s)
1
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0
50
60
70
80
90
100
110
0
Baseplate Temperature (°C)
0
25
40
55
70
85
Ambient Air Temperature (°C)
Figure 3: Maximum load current vs. baseplate temperature when conductively
cooled. Note: The system design must provide a suitable thermal path that
maintains the baseplate temperature below 100 °C.
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating
vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air
flows across the converter from input to output (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50 %-75 %-50
% of Iout(max); dI/dt = 0.8 A/µs). Load cap: 1 µF ceramic cap. Ch 1: Vout, Ch
2: Iout (1 A/div).
Figure 6: Output voltage response to step-change in input voltage (nominal
to maximum), at full load current. Load cap: 100 µF, electrolytic output
capacitance. Ch 1: Vout, Ch 2: Vin.
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 17
Input:18-36 V
Output:30 V
Current:4 A
Part No.:IQ24300QTx04
Technical Specification
IQ24300QTx04 ELECTRICAL CHARACTERISTICS (30.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24 Vdc 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
Min.
Typ.
Max.
Units Notes & Conditions
9.7
A
100
130
mA
Disabled Input Current
1.5
2
mA
Response to Input Transient
0.75
V
40
mA
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current (enabled)
Input Terminal Ripple Current
Recommended Input Fuse
20
A
30.00
30.30
V
±0.1
±0.3
%
±0.1
Vin min; trim up; in current limit
See Figure 6
RMS
Fast acting fuse recommended; see Note 3
OUTPUT CHARACTERISTICS
Output Voltage Set Point
29.70
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
±0.3
%
-450
450
mV
29.25
30.75
V
70
140
mV
Full load
14.1
30
mV
Full load
4
A
Subject to thermal derating
5.2
A
Output voltage 10% Low
Output Voltage Ripple and Noise
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Peak-to-Peak
RMS
Operating Output Current Range
0
Output DC Current Limit Inception
4.4
Output DC Current Limit Shutdown Voltage
4.8
15
V
Back-Drive Current Limit while Enabled
0.07
A
Negative current drawn from output pins
Back-Drive Current Limit while Disabled
15
mA
Negative current drawn from output pins
µF
Vout nominal at full load (resistive load)
1700
mV
50 % to 75 % to 50 % Iout max; see Figure 5
50
µs
To within 1 % Vout nom; see Figure 5
10
%
Across Pins 8 & 4; Common Figures 3-5
10
%
Across Pins 8 & 4
38.1
V
Over full temp range
%
See Figure 1 for efficiency curve
Maximum Output Capacitance
250
Output Voltage during Load Current Transient
Step Change in Output Current (0.5 A/µs)
Settling Time
Output Voltage Trim Range
-20
Output Voltage Remote Sense Range
Output Over-Voltage Protection
35.1
36.6
EFFICIENCY
100 % Load
91
50 % Load
92
%
See Figure 1 for efficiency curve
Note 1: Output is terminated with 1 µF ceramic capacitor. For applications requiring reduced output voltage ripple and noise, consult SynQor applications
support (e-mail: [email protected])
Note 3: Safety certification requires the use of a fuse rated at or below this value
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 18
Input:18-36 V
Output:30 V
Current:4 A
Part No.:IQ24300QTx04
95
14
90
12
85
10
Power Dissipation (W)
Efficiency (%)
Technical Specification
80
75
70
8
6
4
18 Vin
18 Vin
24 Vin
65
24 Vin
2
36 Vin
36 Vin
60
0
0.0
0.5
1.0
1.5
2.0
2.5
Load Current (A)
3.0
3.5
4.0
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
nominal, and maximum input voltage at 25 °C.
0.0
0.5
1.0
1.5
2.0
2.5
Load Current (A)
3.0
3.5
4.0
Figure 2: Power dissipation at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25 °C.
4.5
5
4
4
3.5
3
2.5
Iout (A)
Iout (A)
3
2
2
1.5
400 LFM (2.0 m/s)
1
300 LFM (1.5 m/s)
1
200 LFM (1.0 m/s)
0.5
100 LFM (0.5 m/s)
0
50
60
70
80
90
100
0
110
0
25
40
55
70
85
Ambient Air Temperature (°C)
Baseplate Temperature (°C)
Figure 3: Maximum load current vs. baseplate temperature when conductively
cooled. Note: The system design must provide a suitable thermal path that
maintains the baseplate temperature below 100 °C.
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating
vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air
flows across the converter from input to output (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50 % -75 %50 % of Iout(max); dI/dt = 0.5 A/µs). Load cap: 1 µF ceramic cap. Ch 1: Vout,
Ch 2: Iout (1 A/div).
Figure 6: Output voltage response to step-change in input voltage (nominal
to maximum), at full load current. Load cap: 100 µF, electrolytic output
capacitance. Ch 1: Vout, Ch 2: Vin.
Product # IQ24xxxQTXxxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 19
Input:18-36 V
Output:48 V
Current:2.5 A
Part No.:IQ24480QTx2F
Technical Specification
IQ24480QTx2F ELECTRICAL CHARACTERISTICS (48.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 24 Vdc 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
Min.
Typ.
Max.
Units Notes & Conditions
9.9
A
100
130
mA
Disabled Input Current
1.5
2
mA
Response to Input Transient
0.75
V
40
mA
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current (enabled)
Input Terminal Ripple Current
Recommended Input Fuse
20
A
48.00
48.48
V
±0.1
±0.3
%
±0.1
Vin min; trim up; in current limit
See Figure 6
RMS
Fast acting fuse recommended; see Note 3
OUTPUT CHARACTERISTICS
Output Voltage Set Point
47.52
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
±0.3
%
-720
720
mV
46.80
49.20
V
150
mV
Full load
Full load
Output Voltage Ripple and Noise
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Peak-to-Peak
75
RMS
15.2
Operating Output Current Range
0
Output DC Current Limit Inception
2.8
Output DC Current Limit Shutdown Voltage
3.0
30
mV
2.5
A
Subject to thermal derating
3.3
A
Output voltage 10% Low
24
V
Back-Drive Current Limit while Enabled
0.05
A
Negative current drawn from output pins
Back-Drive Current Limit while Disabled
15
mA
Negative current drawn from output pins
µF
Vout nominal at full load (resistive load)
2600
mV
50 % to 75 % to 50 % Iout max; see Figure 5
50
µs
To within 1 % Vout nom; see Figure 5
10
%
Across Pins 8&4; Common Figures 3-5
10
%
Across Pins 8 & 4
61.0
V
Over full temp range
%
See Figure 1 for efficiency curve
Maximum Output Capacitance
100
Output Voltage during Load Current Transient
Step Change in Output Current (0.2 A/µs)
Settling Time
Output Voltage Trim Range
-20
Output Voltage Remote Sense Range
Output Over-Voltage Protection
56.2
58.6
EFFICIENCY
100 % Load
89
50 % Load
92
%
See Figure 1 for efficiency curve
Note 1: Output is terminated with 1 µF ceramic capacitor. For applications requiring reduced output voltage ripple and noise, consult SynQor applications
support (e-mail: [email protected])
Note 3: Safety certification requires the use of a fuse rated at or below this value
Product # IQ24xxxQTXxxx
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Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 20
Input:18-36 V
Output:48 V
Current:2.5 A
Part No.:IQ24480QTx2F
Technical Specification
20
95
18
90
16
Power Dissipation (W)
Efficiency (%)
85
80
75
70
16 Vin
28 Vin
65
40 Vin
60
12
10
8
6
4
16 Vin
2
40 Vin
28 Vin
0
0.0
0.5
1.0
1.5
2.0
Load Current (A)
2.5
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
nominal, and maximum input voltage at 25°C.
0.0
0.5
1.0
1.5
Load Current (A)
2.0
2.5
Figure 2: Power dissipation at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25°C.
3
3.0
2.5
2.5
2
2.0
Iout (A)
Iout (A)
14
1.5
1.5
1
1.0
400 LFM (2.0 m/s)
0.5
300 LFM (1.5 m/s)
0.5
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0
50
60
70
80
90
100
110
0.0
Baseplate Temperature (°C)
0
25
40
55
70
85
Ambient Air Temperature (°C)
Figure 3: Maximum load current vs. baseplate temperature when conductively
cooled. Note: The system design must provide a suitable thermal path that
maintains the baseplate temperature below 100 °C.
Figure 4: Encased converter (with 1/4” heatsink) max. output power derating
vs. ambient air temperature for airflow rates of 100 LFM through 400 LFM. Air
flows across the converter from input to output (nominal input voltage).
Figure 5: Output voltage response to step-change in load current (50%-75%50% of Iout(max); dI/dt = 0.2A/µs). Load cap: 1µF ceramic cap. Ch 1: Vout, Ch
2: Iout (1A/div).
Figure 6: Output voltage response to step-change in input voltage (nominal
to maximum), at full load current. Load cap: 100µF, electrolytic output
capacitance. Ch 1: Vout, Ch 2: Vin.
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10/07/14
Page 21
Technical
Specification
IQ24xxxQTXxxx
Application Section
BASIC OPERATION AND FEATURES
This converter series uses a two-stage power
topology. The first stage is a buck-converter that
output voltage constant over variations in line,
temperature. The second stage uses a transformer
the functions of input/output isolation and voltage
step-down to achieve the output voltage required.
conversion
keeps the
load, and
to provide
step-up or
5V
50k
ON/OFF
Both the first stage and the second stage switch at a fixed
frequency for predictable EMI performance. Rectification of the
transformer’s output is accomplished with synchronous rectifiers.
These devices, which are MOSFETs with a very low on-state
resistance, dissipate far less energy than Schottky diodes. This
is the primary reason that the converter has such high efficiency.
These converters are offered totally encased to withstand harsh
environments and thermally demanding applications. Dissipation
throughout the converter is so low that it does not require a
heatsink for operation in many applications; however, adding
a heatsink provides improved thermal derating performance in
demanding applications.
This series of converters use the industry standard footprint and
pin-out configuration.
TTL
100pF
Vin(-)
Figure B: Internal ON/OFF pin circuitry
REMOTE SENSE(+) (Pins 7 and 5): The SENSE(+) inputs
correct for voltage drops along the conductors that connect the
converter’s output pins to the load.
Pin 7 should be connected to Vout(+) and Pin 5 should be
connected to Vout(-) at the point on the load where regulation is
desired. A remote connection at the load can adjust for a voltage
drop only as large as that specified in this datasheet, that is
[Vout(+) - Vout(-)] – [Vsense(+) - Vsense(-)] <
CONTROL FEATURES
Sense Range % x Vout
REMOTE ON/OFF (Pin 2): The ON/OFF input, Pin 2, permits
the user to control when the converter is on or off. This input
is referenced to the return terminal of the input bus, Vin(-).
The ON/OFF signal is active low (meaning that a low turns the
converter on). Figure A details four possible circuits for driving
the ON/OFF pin. Figure B is a detailed look of the internal ON/
OFF circuitry.
ON/OFF
ON/OFF
Sense Range % = Trim-up Range % (usually 10 %)
Pins 7 and 5 must be connected for proper regulation of
the output voltage. If these connections are not made, the
converter will deliver an output voltage that is slightly higher
than its specified value.
Note: the output over-voltage protection circuit senses the
voltage across the output (pins 8 and 4) to determine when
it should trigger, not the voltage across the converter’s sense
leads (pins 7 and 5). Therefore, the resistive drop on the board
should be small enough so that output OVP does not trigger,
even during load transients.
Vin(_)
Vin(_)
Remote Enable Circuit
50k
Negative Logic
(Permanently Enabled)
5V
ON/OFF
TTL/
CMOS
ON/OFF
Vin(_)
Vin(_ )
Open Collector Enable Circuit
Direct Logic Drive
Figure A: Various circuits for driving the ON/OFF pin.
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10/07/14
Page 22
Technical
Specification
IQ24xxxQTXxxx
Application Section
OUTPUT VOLTAGE TRIM (Pin 6): The TRIM input permits the
user to adjust the output voltage across the sense leads up or
down according to the trim range specifications.
To decrease the output voltage, the user should connect a
resistor between Pin 6 and Pin 5 (SENSE(-) input). For a desired
decrease of the nominal output voltage, the value of the resistor
should be
Rtrim-down =
- 10.22
(511
D% )
[kW]
where
D% =
Vnominal – Vdesired
Vnominal
x 100[%]
To increase the output voltage, the user should connect a
resistor between Pin 6 and Pin 7 (SENSE(+) input). For a desired
increase of the nominal output voltage, the value of the resistor
should be
Rtrim-up =
where
(
5.11VOUT x (100+D%)
1.225D%
_ 511 _ 10.22
D%
)
[kW]
Vout = Nominal Output Voltage
Trim graphs show the relationship between the trim resistor
value Rtrim-up and Rtrim-down, showing the total range the
output voltage can be trimmed up or down.
Note: the TRIM feature does not affect the voltage at which the
output over-voltage protection circuit is triggered. Trimming the
output voltage too high may cause the over-voltage protection
circuit to engage, particularly during transients.
Do not add decoupling capacitance at the Trim pin.
The node is internally bypassed to eliminate noise.
Total DC Variation of VOUT: For the converter to meet
its full specifications, the maximum variation of the dc value
of Vout, due to both trimming and remote sensing voltage
drops, should not be greater than that specified for the output
voltage trim range.
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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” on our
website. 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 specifications 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.
Output Current Limit: The maximum current limit remains
constant as the output voltage drops. However, once the output
voltage drops below the specified Output DC Current-Limit
Shutdown Voltage, the converter turns off.
The converter then enters a “hiccup mode” where it repeatedly
turns on and off at a 5 Hz (nominal) frequency with a 5 % duty
cycle until the overload is removed. This prevents excessive
heating of the converter or the system board.
Output Over-Voltage Limit: If the voltage across the output
pins exceeds the Output Over-Voltage Protection threshold, the
converter will immediately stop switching. This prevents damage
to the load circuit due to 1) excessive series resistance in output
current path from converter output pins to sense point, 2) a
release of a overload condition, or 3) a release of a current limit
condition. Load capacitance determines exactly how high the
output voltage will rise in response to these conditions. After 200
ms the converter will automatically restart.
Over-Temperature Shutdown: A temperature sensor on
the internal converter PCB senses the average temperature of
the module. The thermal shutdown circuit is designed to turn
the converter off when the temperature at the sensed location
reaches the Over-Temperature Shutdown value. It will allow the
converter to turn on again when the temperature of the sensed
location falls by the amount of the Over-Temperature Shutdown
Restart Hysteresis value.
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10/07/14
Page 23
Technical
Specification
IQ24xxxQTXxxx
Application Section
APPLICATION CONSIDERATIONS
Input System Instability: This condition can occur because
any dc-dc converter appears incrementally as a negative
resistance load. A detailed application note titled “Input System
Instability” is available on the SynQor website which provides
an understanding of why this instability arises, and shows the
preferred solution for correcting it. The Electrical Characteristics
Table indicates a “Recommended External Input Capacitance”.
The value needed for that capacitance and ESR can vary based
on application parameters. Input stability can be evaluated
using our “Stability Calculator” tool in the Technical Support
section of our website www.synqor.com.
Application Circuits: Figure C provides a typical circuit diagram
which details the input filtering and voltage trimming.
Vin(+)
External
Input
Filter
Vin
Electrolytic
Capacitor
Vout(+)
Vsense(+)
ON/OFF
Trim
Vsense(_)
Vin(_)
Rtrim-up
or
Rtrim-down
Cload
Iload
Vout(_)
Figure C: Typical application circuit (negative logic unit, permanently enabled).
Input Filtering and External Capacitance: Figure D provides
a diagram showing the internal input filter components. This filter
dramatically reduces input terminal ripple current, which otherwise
could exceed the rating of an external electrolytic input capacitor.
The recommended external input capacitance is specified in the
Input Characteristics section on the Electrical Characteristics
page. The input capacitance need not exactly match the specified
value. More detailed information is available in the application note
titled “EMI Characteristics” on the SynQor website.
L
Vin(+)
C
Vin(_)
Figure D: Internal Input Filter Diagram (component values listed on the input characteristics page).
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10/07/14
Page 24
Technical
Specification
IQ24xxxQTXxxx
Application Section
Startup Inhibit Period: The Startup Inhibit Period ensures that
the converter will remain off for approximately 200 ms when it is
shut down for any reason. When an output short is present, this
generates a 5 Hz “hiccup mode,” which prevents the converter
from overheating. In all, there are seven ways that the converter
can be shut down, initiating a Startup Inhibit Period:
• InputUnder-VoltageLockout
When the ON/OFF pin goes low after t2, and the Startup Inhibit
Period has elapsed, and the output turns on within the typical
Turn-On Time.
Thermal Considerations: The maximum operating baseplate
temperature, TB, is 100 ºC. As long as the user’s thermal system
keeps TB < 100 ºC, the converter can deliver its full rated power.
A power derating curve can be calculated for any heatsink that is
attached to the baseplate of the converter. It is only necessary to
determine the thermal resistance, RTHBA, of the chosen heatsink
between the baseplate and the ambient air for a given airflow
rate. This information is available from the heatsink vendor. The
following formula can then be used to determine the maximum
power the converter can dissipate for a given thermal condition if
its baseplate is to be no higher than 100 ºC.
• InputOver-VoltageShutdown
• OutputOver-VoltageProtection
• OverTemperatureShutdown
• CurrentLimit(whenVoutisbelowshutdownvoltage)
• ShortCircuitProtection
• TurnedoffbytheON/OFFinput
Figure E shows three turn-on scenarios, where a Startup Inhibit
Period is initiated at t0, t1, and t2:
Before time t0, when the input voltage is below the UVL threshold,
the unit is disabled by the Input Under-Voltage Lockout (UVL)
feature. When the input voltage rises above the UVL threshold,
the Input Under-Voltage Lockout is released, and a Startup Inhibit
Period is initiated. At the end of this delay, the ON/OFF pin is
evaluated, and since it is active, the unit turns on.
At time t1, the unit is disabled by the ON/OFF pin, and it cannot
be enabled again until the Startup Inhibit Period has elapsed.
max
Pdiss =
100 ºC - TA
RTHBA
This value of power dissipation can then be used in conjunction
with the data shown in Figure 2 to determine the maximum load
current (and power) that the converter can deliver in the given
thermal condition.
We recommend that a suitable thermal interface material such as
a thermally conductive pad or grease be used to assure a good
thermal interface between the base plate and the conductive
cooling device.
Vin
Under-Voltage
Lockout TurnOn Threshold
ON/OFF
(neg logic)
ON
OFF ON
OFF
ON
9ms
Vout
(typical turn on time)
200ms
215ms
(initial start-up
inhibit period)
(typical start-up
inhibit period)
t1
t0
200ms
t2
t
Figure E: Startup Inhibit Period (turn-on time not to scale)
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10/07/14
Page 25
Technical
Specification
IQ24xxxQTXxxx
Standards & Qualification Testing
Parameter
Notes & Conditions
STANDARDS COMPLIANCE
UL 60950-1/R:2011-12
Basic Insulation
CAN/CSA-C22.2 No. 60950-1/A1:2011
EN 60950-1/A12:2011
Certified by TUV
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
# 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
100 g minimum, 2 drops in x, y, and 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, 95 % RH, 1000 hours, continuous Vin applied except 5 min/day
Solderability
15 pins
Altitude
2
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 # IQ24xxxQTXxxx
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10/07/14
Page 26
Technical
Specification
IQ24xxxQTXxxx
Standard Mechanical Diagram
1.536 [39.01]
1.030 [26.16]
0.450 [11.43]
SEATING
PLANE HEIGHT
0.500 0.025
[12.7
0.63]
PIN EXTENSION
0.180
[4.57]
0.150 [3.81]
4
5
6
7
8
TOP VIEW
1.860 2.386
[47.24] [60.60]
2.000
[50.80]
0.004 [0.10]
0.08
[2.0]
3
1
0.215
[5.46
0.020
0.50]
0.300 [7.62]
0.600 [15.24]
THREADED INSERT
SEE NOTE 1
(4 PLCS)
NOTES
1) APPLIED TORQUE PER M3 SCREW 4in-lb RECOMMENDED (5in-lb
LIMIT) SCREW SHOULD NOT EXCEED 0.100" (2.54mm) DEPTH
BELOW THE SURFACE OF THE BASEPLATE.
PIN DESIGNATIONS
Pin
Name
Function
1
+VIN
Positive input voltage
2
ON/OFF
3
–VIN
4
–VOUT
Negative output voltage
5
–SNS
2) BASEPLATE FLATNESS TOLERANCE IS 0.004" (.10mm)
3) PINS 1-3. 5-7 ARE 0.040" (1.02mm) DIA. WITH 0.080"
(2.03mm) DIA. STANDOFFS.
4) PINS 4 AND 8 ARE 0.062" (1.57mm) DIA. WITH 0.100"
(2.54mm) DIA STANDOFFS
5) ALL PINS: MATERIAL: COPPER ALLOY
FINISH: MATTE TIN OVER NICKEL PLATE
6) WEIGHT: 2.9 oz. (84g)
7) ALL DIMENSIONS IN INCHES(mm)
TOLERANCES: X.XXIN +/-0.02 (X.Xmm +/-0.5mm)
X.XXXIN +/-0.010 (X.XXmm +/-0.25mm)
Product # IQ24xxxQTXxxx
1
2
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TTL input to turn converter on and off,
referenced to Vin(–), with internal pull up.
Negative input voltage
6
TRIM
Negative remote sense1
Output voltage trim2
7
+SNS
Positive remote sense3
8
+VOUT
Positive output voltage
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.
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Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 27
Technical
Specification
IQ24xxxQTXxxx
Flanged Mechanical Diagram
2.200 [55.88]
2.000 [50.80]
1.536 [39.01]
0.450 [11.4]
PIN
EXTENSION
0.180
[4.6]
SEATING
PLANE HEIGHT
.500±.025
[12.7±0.63]
0.150 [3.8]
4 5 6 7 8
0.010 [0.25]
TOP VIEW
2.386
[60.60]
1.300
[33.02]
0.36
[9.1]
2.000
[50.8]
2.066
[52.48]
3
2
1
1
0.70
[17.8]
0.300 [7.6]
FLANGE
THICKNESS
0.125
[3.2]
.130 [3.30]
SEE NOTE 1
(6 PLCS)
0.600 [15.2]
NOTES
PIN DESIGNATIONS
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 ARE 0.040" (1.02mm) DIA. WITH 0.080"
(2.03mm) DIA. STANDOFFS.
4) PINS 1-3. 5-7 ARE 0.040" (1.02mm) DIA. WITH 0.080" (2.03mm)
DIA. STANDOFFS.
5) PINS 4 AND 8 ARE 0.062" (1.57mm) DIA. WITH 0.100"
(2.54mm) DIA STANDOFFS
6) ALL PINS: MATERIAL: COPPER ALLOY
FINISH: MATTE TIN OVER NICKEL PLATE
7) WEIGHT: 3.2 oz (90 g)
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Name
Function
1
+VIN
Positive input voltage
2
ON/OFF
3
–VIN
TTL input to turn converter on and off,
referenced to Vin(–), with internal pull up.
Negative input voltage
4
–VOUT
Negative output voltage
5
–SNS
6
TRIM
Negative remote sense1
Output voltage trim2
7
+SNS
Positive remote sense3
8
+VOUT
Positive output voltage
Notes:
1)
SENSE(–) should be connected to Vout(–) either remotely
or at the converter.
8) ALL DIMENSIONS IN INCHES(mm)
TOLERANCES: X.XXIN +/-0.02 (X.Xmm +/-0.5mm)
X.XXXIN +/-0.010 (X.XXmm +/-0.25mm)
Product # IQ24xxxQTXxxx
Pin
www.synqor.com
2)
Leave TRIM pin open for nominal output voltage.
3)
SENSE(+) should be connected to Vout(+) either remotely
or at the converter.
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 28
Technical
Specification
IQ24xxxQTXxxx
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 characters for options.
InQor units are only available with 6/6 RoHS compliance indicated by "-G".
IQ 2 4 0 1 8 Q T C 4 0 N R S - G
Options
(see
Ordering Information)
Output Current
Thermal Design
Performance Level
Package Size
Output Voltage
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.
Input
Voltage
18-36 V
18-36 V
18-36 V
18-36 V
18-36 V
18-36 V
18-36 V
18-36 V
18-36 V
Model Number
6/6 RoHS
IQ24018QTw40xyz
IQ24033QTw30xyz
IQ24050QTw24xyz
IQ24070QTw17xyz
IQ24120QTw10xyz
IQ24150QTw08xyz
IQ24240QTw05xyz
IQ24300QTw04xyz
IQ24480QTw2Fxyz
Max Output
Current
40.0 A
30.0 A
24.0 A
17.0 A
10.0 A
8.0 A
5.0 A
4.0 A
2.5 A
The following options must be included in place of the w x y z spaces in the
model numbers listed above.
Thermal Design
w
Options Description
Enable Logic Pin Style
x
y
C - Encased
V - Encased with
Flanged Baseplate
Application Notes
Output
Voltage
1.8 V
3.3 V
5.0 V
7.0 V
12.0 V
15.0 V
24.0 V
30.0 V
48.0 V
N - Negative
Feature Set
z
R - 0.180"
S - Standard
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]
Not all combinations make valid part numbers, please contact SynQor for
availability.
PATENTS
SynQor holds the following U.S. patents, one or more of which apply to
each product listed in this document. Additional patent applications may
be pending or filed in the future.
Contact SynQor for further information and to order:
Phone:
Toll Free:
Fax:
E-mail:
Web:
Address:
Product # IQ24xxxQTXxxx
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
5,999,417
6,222,742
6,545,890
6,577,109
6,594,159
6,731,520
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
Warranty
SynQor offers a two (2) year limited warranty. Complete warranty
information is listed on our website or is available upon request from
SynQor.
Information furnished by SynQor is believed to be accurate and reliable.
However, no responsibility is assumed by SynQor for its use, nor for any
infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any
patent or patent rights of SynQor.
www.synqor.com
Doc.# 005-IQ24QTX Rev. H
10/07/14
Page 29
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