20A - SynQor

Technical
Specification
IQ36xxxSKXxx
18-75V
1.2-15V
26W
2250Vdc
Continuous Input
Outputs
Max Power
Isolation
Sixteenthbrick
DC-DC Converter
@
20
A
R
TE
R
VE
2V
O
U
T
N
IN
5V
1.
CO
01
D
18
-7
36
C-
D
IQ
Operational Features
•
•
•
•
C
2S
KC
20
N
R
S-
G
The InQor® Sixteenth-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.
High efficiency, 85% at full load
Delivers full power with conductive cooling through integral baseplate
Operating input voltage range: 18-75V dc
Fixed frequency switching provides predictable EMI
Protection Features
Mechanical Features
Mechanical Features
• Industry standard Sixteenth-brick pin-out configuration
• Size: 1.436" x 1.036" x 0.500" (36.47 x 26.31 x 12.70 mm)
• Total weight: 1.1 oz (31 g)
•
•
•
•
•
Input under-voltage lockout
Output current limit and short circuit protection
Active back bias limit
Output over-voltage protection
Thermal shutdown
Control Features
• On/Off control referenced to input side
• Remote sense for the output voltage
• Output voltage trim range of -10%, +10%
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 # IQ36xxxSKXxx
Phone 1-888-567-9596
CONTENTS
Page No.
Family Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
5.0Vout Electrical Characteristics & Figures . . . . . . . . . . . . . . . . . . . . . . 4
7.0Vout Electrical Characteristics & Figures . . . . . . . . . . . . . . . . . . . . . . 6
Application Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Standards & Qualification Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Standard Mechanical Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Flanged Mechanical Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
www.synqor.com
Doc.# 005-0005341 Rev. B
11/20/13
Page 1
Technical
Specification
IQ36xxxSKXxx
IQ36-SK Family Electrical Characteristics (all output voltages)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 36V 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
Min.
Typ.
Max.
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
-1
100
Operating
75
Isolation Voltage
Input to Output
2250
Input to Base-Plate
2250
Output to Base-Plate
2250
Operating Temperature
-40
100
Storage Temperature
-45
125
Voltage at ON/OFF input pin
-2
8
INPUT CHARACTERISTICS
Operating Input Voltage Range
18
36
75
Input Under-Voltage Lockout
Turn-On Voltage Threshold
17.1
17.8
18.5
Turn-Off Voltage Threshold
14.8
15.8
16.8
Lockout Voltage Hysteresis
2.0
Recommended External Input Capacitance
100
Input Filter Component Values (L\C)
0.47\2.35
DYNAMIC CHARACTERISTICS
Turn-On Transient
Turn-On Time
30
Start-Up Inhibit Time
180
200
250
Power-Up Inhibit Time
2
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
Board Temperature
125
Transformer Temperature
125
Maximum Baseplate Temperature, Tb
100
FEATURE CHARACTERISTICS
Switching Frequency
250
ON/OFF Control
Off-State Voltage
2.4
8
On-State Voltage
-2
0.8
ON/OFF Control
Pull-Up Voltage
5
Pull-Up Resistance
10
Over-Temperature Shutdown OTP Trip Point
125
Over-Temperature Shutdown Restart Hysteresis
10
RELIABILITY CHARACTERISTICS
Calculated MTBF (Telcordia) TR-NWT-000332
3.90
Calculated MTBF (MIL-217) MIL-HDBK-217F
3.50
Field Demonstrated MTBF
Note 1: Start-up guaranteed above 18.5V, but will operate down to 18V
Note 2: Higher values of isolation capacitance can be added external to the module.
Note 3: Maximum value is 400ms for DC current limit and short circuit fault conditions
Product # IQ36xxxSKXxx
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Units Notes & Conditions
V
V
V dc
V dc
V dc
°C
°C
V
V
Continuous
Continuous
Baseplate temperature
Note 1
V
V
V
µF
µH\µF
Typical ESR 0.1-0.2 Ω
Internal values; see Figure D
ms
ms
ms
%
Full load, Vout=90% nom.
Figure E; See Note 3
Figure E
Maximum Output Capacitance
See Absolute Maximum Ratings
MΩ
pF
°C
°C
°C
°C
See Note 2
Package rated to 150 °C
UL rated max operating temp 130 °C
kHz
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.# 005-0005341 Rev. B
11/20/13
Page 2
Technical
Specification
IQ36xxxSKXxx
Family Figures (all output voltages)
10,000.0
Trim Resistance (kOhms)
Nominal Vout
% Decrease in Vout (All voltages)
1,000.0
100.0
10.0
0
Common Figure 1: Typical startup waveform. Input voltage pre-applied, ON/
OFF Pin on Ch 2.
2
3
4
5
6
% Decrease in Vout
7
8
9
10
9
10
Common Figure 2: Trim graph for trim down.
100,000.0
10,000.0
1.2 V
1,000.0
1.5 V
1.8 V
2.5 V
5V
3.3 V
Trim Resistance (kOhms)
Trim Resistance (kOhms)
1
100.0
10.0
1.0
7V
12 V
15 V
10,000.0
1,000.0
100.0
0
1
2
3
4
5
6
7
8
9
10
0
Increase in Vout (%)
Common Figure 3: Trim graph for trim-up 1.2 to 3.3V outputs.
Product # IQ36xxxSKXxx
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1
2
3
4
5
6
7
8
Increase in Vout (%)
Common Figure 4: Trim graph for trim-up 5 to 15V outputs.
www.synqor.com
Doc.# 005-0005341 Rev. B
11/20/13
Page 3
Input:18-75V
Output:5V
Current:5A
Part No.:IQ36050SKx05
Technical Specification
IQ36050SKx05 Electrical Characteristics (5.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 36V 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
Min.
Typ.
Max.
Units Notes & Conditions
2.3
A
100
130
mA
10
14
mA
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current
Disabled Input Current
Response to Input Transient
0.17
V
Input Terminal Ripple Current
300
mA
Recommended Input Fuse
20
A
5.000
5.050
V
±0.1
±0.3
%
±0.1
Vin min; trim up; in current limit
1000 V/ms; see Figure 6
RMS
Fast acting external fuse recommended
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
Turn-On Time
38
ms
Output Voltage Ripple and Noise
Over sample, line, load, temperature & life
Full load, Vout=90% nom.
20 MHz bandwidth; see Note 1
Peak-to-Peak
0
RMS
Operating Output Current Range
35
70
mV
Full load
9
20
mV
Full load
5
A
0
Output DC Current-Limit Inception
6.0
Back-Drive Current Limit while Enabled
2.0
A
Negative current drawn from output
Back-Drive Current Limit while Disabled
2
mA
Negative current drawn from output
µF
Vout nominal at full load (resistive load); See Note 2
Maximum Output Capacitance
A
5,000
Output Voltage during Load Current Transient
Step Change in Output Current (0.1 A/µs)
200
mV
50% to 75% to 50% Iout max
Settling Time
80
µs
To within 1% Vout nom
10
%
Across Pins 8&4; Common Figures 3-5; see Note 3
10
%
Across Pins 8&4
6.5
V
Over full temp range
%
See Figure 1 for efficiency curve
Output Voltage Trim Range
-10
Output Voltage Remote Sense Range
Output Over-Voltage Protection
5.7
6.2
EFFICIENCY
100% Load
82
50% Load
75
%
See Figure 1 for efficiency curve
Note 1: Output is terminated with 1 µF ceramic and 22 µF low-ESR tantalum capacitors. For applications requiring reduced output voltage ripple and
noise, consult SynQor applications support (e-mail: [email protected])
Note 2: Recommended minimum output capacitance is 100uF
Note 3: Trim-up range is limited below 10% at low line and full load, consult SynQor applications support for more detail (e-mail: [email protected])
Product # IQ36xxxSKXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005341 Rev. B
11/20/13
Page 4
Input:18-75V
Output:5V
Current:5A
Part No.:IQ36050SKx05
Technical Specification
90
10
8
Power Dissipation (W)
Efficiency (%)
85
80
75
70
18 Vin
65
6
4
2
36 Vin
18 Vin
36 Vin
75 Vin
60
0
1
2
3
75 Vin
4
0
5
0
1
2
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.
3
2
3
2
400 LFM (2.0 m/s)
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
1
300 LFM (1.5 m/s)
1
200 LFM (1.0 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0
3
Load Current (A)
25
40
100 LFM (0.5 m/s)
55
70
0
85
Ambient Air Temperature (°C)
Figure 5: Output voltage response to step-change in load current for Mega
version (50%-75%-50% of Iout(max); dI/dt = 0.1 A/µs). Load cap: 100 µF
electrolytic capacitor. Ch 1: Vout (500 mV/div), Ch 2: Iout (5 A/div)
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40
55
70
85
Ambient Air Temperature (°C)
Figure 3: Encased converter (without 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).
Product # IQ36xxxSKXxx
25
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 6: Output voltage response to step-change in input voltage (1000 V/ms).
Load cap: 100 µF, electrolytic output capacitance.
Ch 1: Vout (500 mV/div), Ch 2: Vin (50 V/div).
www.synqor.com
Doc.# 005-0005341 Rev. B
11/20/13
Page 5
Input:18-75V
Output:7V
Current:3.5A
Part No.:IQ36070SKx04
Technical Specification
IQ36070SKx04 Electrical Characteristics (7.0 Vout)
Ta = 25 °C, airflow rate = 300 LFM, Vin = 36V 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
Min.
Typ.
Max.
Units Notes & Conditions
3.7
A
100
130
mA
10
14
mA
INPUT CHARACTERISTICS
Maximum Input Current
No-Load Input Current
Disabled Input Current
Response to Input Transient
0.08
V
Input Terminal Ripple Current
225
mA
Recommended Input Fuse
20
A
7.000
7.070
V
±0.1
±0.3
%
±0.1
Vin min; trim up; in current limit
1000 V/ms; see Figure 6
RMS
Fast acting external fuse recommended
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
80
mV
Full load
20
mV
Full load
3.5
A
Output Voltage Ripple and Noise
Over sample, line, load, temperature & life
20 MHz bandwidth; see Note 1
Peak-to-Peak
0
RMS
40
10
Operating Output Current Range
0
Subject to thermal derating
Output DC Current-Limit Inception
4.2
Back-Drive Current Limit while Enabled
3.4
A
Negative current drawn from output
Back-Drive Current Limit while Disabled
2
mA
Negative current drawn from output
µF
Vout nominal at full load (resistive load); See Note 2
mV
50% to 75% to 50% Iout max
Maximum Output Capacitance
A
4,000
Output Voltage during Load Current Transient
Step Change in Output Current (0.1 A/µs)
250
Settling Time
100
Output Voltage Trim Range
-10
Output Voltage Remote Sense Range
Output Over-Voltage Protection
8.2
8.5
µs
To within 1% Vout nom
10
%
Across Pins 8&4; Common Figures 3-5
10
%
Across Pins 8&4
9.2
V
Over full temp range
%
See Figure 1 for efficiency curve
EFFICIENCY
100% Load
83
50% Load
85
%
See Figure 1 for efficiency curve
Note 1: Output is terminated with 1 µF ceramic and 22 µF low-ESR tantalum capacitors. For applications requiring reduced output voltage ripple and
noise, consult SynQor applications support (e-mail: [email protected])
Note 2: Recommended minimum output capacitance is 100uF
Note 3: Trim-up range is limited below 10% at low line and full load, consult SynQor applications support for more detail (e-mail: [email protected])
Product # IQ36xxxSKXxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005341 Rev. B
11/20/13
Page 6
Input:18-75V
Output:7V
Current:3.5A
Part No.:IQ36070SKx04
Technical Specification
100
12
95
10
Power Dissipation (W)
Efficiency (%)
90
85
80
75
70
18 Vin
65
8
6
4
18 Vin
2
36 Vin
36 Vin
75 Vin
60
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0
3.5
75 Vin
0.0
0.5
1.0
Load Current (A)
3
3
Iout (A)
Iout (A)
4
2
400 LFM (2.0 m/s)
3.5
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
100 LFM (0.5 m/s)
40
3.0
2
1
300 LFM (1.5 m/s)
25
2.5
Figure 2: Power dissipation at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at 25°C.
4
0
2.0
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for minimum,
nominal, and maximum input voltage at 25°C.
1
1.5
55
70
0
85
25
40
55
70
85
Ambient Air Temperature (°C)
Ambient Air Temperature (°C)
Figure 3: Encased converter (without 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 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 for Mega
version (50%-75%-50% of Iout(max); dI/dt = 0.1 A/µs). Load cap: 100 µF
electrolytic capacitor. Ch 1: Vout (500 mV/div), Ch 2: Iout (2 A/div)
Figure 6: Output voltage response to step-change in input voltage (1000 V/ms).
Load cap: 100 µF, electrolytic output capacitance.
Ch 1: Vout (200 mV/div), Ch 2: Vin (50 V/div).
Product # IQ36xxxSKXxx
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Doc.# 005-0005341 Rev. B
11/20/13
Page 7
Technical
Specification
IQ36xxxSKXxx
Application Section
BASIC OPERATION AND FEATURES
CONTROL 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.
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.
conversion
keeps the
load, and
to provide
step-up or
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, even at very low output voltages and very high
output currents.
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
extreme situations.
This series of converters use the industry standard footprint and
pin-out configuration.
ON/OFF
ON/OFF
Vin(_)
Vin(_)
Remote Enable Circuit
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 board 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(-)] <
Sense Range % x Vout
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.
5V
Negative Logic
(Permanently Enabled)
5V
ON/OFF
TTL/
CMOS
10k
ON/OFF
ON/OFF
50k
TTL
Vin(_)
Vin(_ )
Open Collector Enable Circuit
Figure A: Various circuits for driving the ON/OFF pin.
Product # IQ36xxxSKXxx
100pF
Vin(-)
Direct Logic Drive
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Figure B: Internal ON/OFF pin circuitry
www.synqor.com
Doc.# 005-0005341 Rev. B
11/20/13
Page 8
Technical
Specification
IQ36xxxSKXxx
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 and 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.
It is not necessary for the user to add capacitance at the
Trim pin. The node is internally bypassed to eliminate noise.
* For 1.2Vout unit replace 1.225 with 0.6 (see Trim Up Graph
Common Figure 3).
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 load voltage drops,
should not be greater than that specified for the output
voltage trim range.
Product # IQ36xxxSKXxx
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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
impedance of the load across the output is small enough to make
the output voltage drop below the specified Output DC CurrentLimit 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 short circuit condition is removed. This prevents
excessive heating of the converter or the load 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 short-circuit 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 converter 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.
www.synqor.com
Doc.# 005-0005341 Rev. B
11/20/13
Page 9
Technical
Specification
IQ36xxxSKXxx
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.
Application Circuits: Figure C provides a typical circuit diagram
which details the input filtering and voltage trimming.
Vin(+)
Vin
External
Input
Filter
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. 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 specifications page).
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Technical
Specification
IQ36xxxSKXxx
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 high after t2, the Startup Inhibit
Period has elapsed, and the output turns on within the typical
Turn-On Time.
Thermal Considerations: The maximum operating base-plate
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 base-plate of the converter. It is only necessary
to determine the thermal resistance, RTHBA, of the chosen heatsink
between the base-plate and the ambient air for a given airflow
rate. This information is usually available from the heatsink
vendor. The following formula can the be used to determine the
maximum power the converter can dissipate for a given thermal
condition if its base-plate is to be no higher than 100 ºC.
• InputOver-VoltageLockout
• OutputOver-VoltageProtection
• OverTemperatureShutdown
• CurrentLimit
• 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 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.
For convenience, power derating curves for an encased converter
without a heatsink and with a typical heatsink are provided for
each output voltage.
Vin
Under-Voltage
Lockout TurnOn Threshold
ON/OFF
(neg logic)
ON
OFF ON
OFF
ON
30ms
Vout
(typical turn on time)
2ms
(typical start-up
inhibit period)
t1
t0
200ms
200ms
t2
t
Figure E: Startup Inhibit Period (turn-on time not to scale)
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Doc.# 005-0005341 Rev. B
11/20/13
Page 11
Technical
Specification
IQ36xxxSKXxx
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
100g 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.
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Page 12
Technical
Specification
IQ36xxxSKXxx
Standard Mechanical Diagram
1.036±.020 (26.31±0.5)
.600 (15.24)
.450 (11.43)
0.500±.025
(12.7±0.63)
Overall height
.300 (7.62)
.150 (3.81)
8 7 6 5 4
0.18
(4.6)
Top View
1.436±.020
(36.47±0.5)
Side View
1.10
(27.9)
.143±.020
(3.63±0.5)
1
2
3
.300 (7.62)
.218±.020
(5.54±0.5)
.600 (15.24)
NOTES
1)
2)
3)
4)
5)
6)
7)
8)
9)
PIN DESIGNATIONS
Baseplate flatness tolerance is 0.004" (.10mm) TIR for surface.
Pins 1-3, 5-7 are 0.040” (1.02mm) diameter, with 0.080” (2.03mm)
diameter standoff shoulders.
Pins 4 and 8 are 0.062” (1.57 mm) diameter with 0.100" (2.54 mm)
diameter standoff shoulders.
All Pins: Material – Copper Alloy; Finish – Matte Tin over Nickel plate
Undimensioned components are shown for visual reference only.
Weight: 1.1oz (31g) typical
All dimensions in inches (mm)
Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm)
x.xxx +/-0.010 in. (x.xx +/-0.25mm)
Workmanship: Meets or exceeds IPC-A610 Class II
Recommended pin length is 0.03” (0.76mm) greater than the PCB
thickness.
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Pin
1
2
Name
Vin(+)
ON/OFF
3
4
5
6
7
8
Vin(–)
Vout(–)
SENSE(–)
TRIM
SENSE(+)
Vout(+)
Function
Positive input voltage
TTL input to turn converter on and off,
referenced to Vin(–), with internal pull up.
Negative input voltage
Negative output voltage
Negative remote sense(see note 1)
Output voltage trim (see note 2)
Positive remote sense (see note 3)
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.
Doc.# 005-0005341 Rev. B
11/20/13
Page 13
Technical
Specification
IQ36xxxSKXxx
Flanged Mechanical Diagram
]
TOP VIEW
1.12
[ 28,3 ]
.94
[ 23,9 ]
.21
[ 5,3 ]
.14
[ 3,6 ]
.017 .020
[ 0,43 0,5 ]
1.436
[ 36,47 ]
1
3
.218
.020
[ 5,54
0,5 ]
.350
.020
[ 8,89
0,5 ]
.450
.020
[ 11,43
.13
1
[ 3,2 ]
BOTTOMSIDE
CLEARANCE
.010 [ 0,25 ]
.300
[ 7,62 ]
.600
[ 15,24 ]
0,5 ]
NOTES
PIN DESIGNATIONS
Applied torque per screw should not exceed 5in-lb (3in-lb
recommended).
2)
Baseplate flatness tolerance is 0.01” (.25mm) TIR for surface.
3)
Pins 1-3, 5-7 are 0.040” (1.02mm) diameter, with 0.080” (2.03mm)
diameter standoff shoulders.
4)
Pins 4 and 8 are 0.062” (1.57 mm) diameter with 0.100" (2.54 mm)
diameter standoff shoulders.
5)
All Pins: Material – Copper Alloy; Finish – Matte Tin over Nickel plate
6)
Weight: 1.22 oz (34.6g) typical
7)
Undimensioned components are shown for visual reference only.
8)
All dimensions in inches (mm)
Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm)
x.xxx +/-0.010 in. (x.xx +/-0.25mm)
9)
Workmanship: Meets or exceeds IPC-A610 Class II
10) Recommended pin length is 0.03” (0.76mm) greater than the PCB
thickness.
11) A thermal interface material is required to assure proper heat
transfer from the flanged baseplate to the cooling surface. Thermal
grease, conductive pads, compounds, and other similar products are
available from many heatsink manufacturers.
1)
Product # IQ36xxxSKXxx
2
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Pin
1
2
Name
Vin(+)
ON/OFF
3
4
5
6
7
8
Vin(–)
Vout(–)
SENSE(–)
TRIM
SENSE(+)
Vout(+)
Function
Positive input voltage
TTL input to turn converter on and off,
referenced to Vin(–), with internal pull up.
Negative input voltage
Negative output voltage
Negative remote sense(see note 1)
Output voltage trim (see note 2)
Positive remote sense (see note 3)
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.
Doc.# 005-0005341 Rev. B
11/20/13
Page 14
Technical
Specification
IQ36xxxSKXxx
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 3 6 0 1 2 S K C 2 0 N R S - G
IQ36012SKw20xyz
IQ36015SKw16xyz
IQ36018SKw14xyz
IQ36025SKw10xyz
IQ36033SKw08xyz
IQ36050SKw05xyz
IQ36070SKw04xyz
IQ36120SKw02xyz
IQ36150SKw02xyz
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
36V
36V
36V
36V
36V
36V
36V
36V
36V
Model Number
6/6 RoHS
Max Output
Current
20A
16A
14A
10A
8A
5A
3.5A
2A
1.7A
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
1.2V
1.5V
1.8V
2.5V
3.3V
5V
7V
12V
15V
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 # IQ36xxxSKXxx
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
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.# 005-0005341 Rev. B
11/20/13
Page 15