Technical
Specification
IQ36-QTC Family
18-75 V
Cont. Input
1.8-48 V
Outputs
120 W
Max Power
2250 V dc
Isolation
DC-DC Converter
Quarter-brick
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.
Operational Features
• High efficiencies, 85-92% at full rated load current
• Delivers full power with minimal derating - no heatsink required
• Operating input voltage range: 18-75 V
• Fixed frequency switching provides predictable EMI
• No minimum load requirement
Mechanical Features
• Industry standard quarter-brick pin-out configuration
• Size: 1.54" x 2.39" x 0.50"
(39.0 x 60.6 x 12.7mm)
• Total weight: 3 oz (85 g)
Protection Features
• 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 -20%, +10%
COnTenTS
Mechanical Drawing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
IQ36 Family Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . 3 - 4
IQ36 Family Figures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
IQ36018QTC40 (1.8V, 40A) Characteristics and Figures . . . . . . . . . . 6 - 7
IQ36033QTC30 (3.3V, 30A) Characteristics and Figures . . . . . . . . . . 8 - 9
IQ36050QTC24 (5.0V, 24A) Characteristics and Figures . . . . . . . . 10 - 11
IQ36070QTC17 (7.0V, 17A) Characteristics and Figures . . . . . . . . 12 - 13
IQ36120QTC10 (12V, 10A) Characteristics and Figures . . . . . . . . . 14 - 15
IQ36150QTC08 (15V, 8.0A) Characteristics and Figures . . . . . . . . 16 - 17
IQ36240QTC05 (24V, 5.0A) Characteristics and Figures . . . . . . . . 18 - 19
IQ36300QTC04 (30V, 4.0A) Characteristics and Figures . . . . . . . . 20 - 21
IQ36480QTC2F (48V, 2.5A) Characteristics and Figures . . . . . . . . 22 - 23
Application Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 - 27
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Page No.
Safety Features
• 2250 V, 30 MW input-to-output isolation
• UL/cUL 60950-1 recognized (US & Canada), basic insulation
rating
• TUV certified to EN60950-1
• Meets 72/23/EEC and 93/68/EEC directives which facilitates
CE Marking in user’s end product
• Board and plastic components meet UL94V-0 standard
• RoHS compliant (see Page 28)
Product # IQ36xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ36QTX Rev. B
09/23/08
Page 1
Technical
Specification
IQ36-QTC Family
MECHANICAL DIAGRAM
Top View
0.600 (15.24)
0.450 (11.43)
0.300 (7.62)
0.150 (3.81)
1.54 (39)
0.25
(6.4)
0.26
(6.7)
0.500 ± 0.025
(12.7 ± 0.63)
Overall Height
Side View
0.18
(4.57)
8
7
6
5
4
2.39
(60.6)
2.00
(50.8)
1.86
(47.21)
M3 Threaded
Inserts
4 Places
See Note 9
0.18
(4.6)
0.47
(11.9)
1
2
3
0.300 (7.62)
0.010 ± 0.010
(0.25 ± 0.25)
Bottom Side Clearance
0.600 (15.24)
1.030 (26.16)
NOTES
PIN DESIGNATIONS
Pin
No.
1
2
3
4
5
6
7
8
Notes:
1. SENSE(–) should be connected to Vout(–) either remotely or at the
converter.
2. Leave TRIM pin open for nominal output voltage.
3. SENSE(+) should be connected to Vout(+) either remotely or at the
converter.
1) Pins 1-3, 5-7 are 0.040" (1.02mm) diameter with 0.080" (2.03
mm) diameter standoff shoulders.
2) Pins 4 and 8 are 0.062" (1.57 mm) diameter with 0.100" (2.54
mm) diameter standoff shoulders.
3) Recommended pin length is 0.03" (0.76mm) greater than the PCB
thickness.
4) All Pins: Material - Copper Alloy; Finish - Matte Tin over Nickel
plate
5) Undimensioned components shown are for visual reference only.
6) Weight: 3.02 oz. (85.7 g) typical
7) All dimensions in inches (mm)
Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm)
x.xxx +/-0.010 in. (x.xx +/-0.25mm)
8) Workmanship: Meets or exceeds current IPC-A-610 Class II
9) M3 screws used to bolt unit’s baseplate to other surfaces (such as
a heatsink) must not exceed 0.100" (2.54 mm) depth below the
surface of the baseplate.
10) Applied torque per screw should not exceed 6in-lb. (0.7 Nm).
11) Baseplate flatness tolerance is 0.004" (.10mm) TIR for surface.
Name
Vin (+)
ON/OFF
Vin (-)
Vout (-)
SENSE (-)
TRIM
SENSE (+)
Vout (+)
Function
Positive input voltage
TTL input to turn converter
on and off, referenced to
Vin (-) with internal pull up
Negative input voltage
Negative output voltage
Negative remote sense
1
Output voltage trim
2
Positive remote sense
3
Positive output voltage
Product # IQ36xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ36QTX Rev. B
09/23/08
Page 2
Technical
Specification
IQ36-QTC Family
IQ36 FaMIly eleCTRICal ChaRaCTeRISTICS (all output voltages)
aBSOlUTe MaXIMUM RaTInGS
Input Voltage
Non-Operating
Operating
Operating Transient Protection
Isolation Voltage
Input to Output
Input to Base-Plate
Output to Base-Plate
Operating Temperature
Storage Temperature
Voltage at ON/OFF input pin
InPUT ChaRaCTeRISTICS
Operating Input Voltage Range
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Voltage Hysteresis
Recommended External Input Capacitance
DynaMIC ChaRaCTeRISTICS
Turn-On Transient
Turn-On Time
Start-Up Inhibit Time
Output Voltage Overshoot
ISOlaTIOn ChaRaCTeRISTICS
Isolation Voltage (dielectric strength)
Isolation Resistance
Isolation Capacitance (input to output)
1
TeMPeRaTURe lIMITS FOR POWeR DeRaTInG CURVeS
Semiconductor Junction Temperature
Board Temperature
Transformer Temperature
Maximum Baseplate Temperature, T
B
FeaTURe ChaRaCTeRISTICS
Switching Frequency
ON/OFF Control
Off-State Voltage
On-State Voltage
ON/OFF Control
Pull-Up Voltage
Pull-Up Resistance
Over-Temperature Shutdown
Over-Temperature Shutdown Restart Hysteresis
RelIaBIlITy ChaRaCTeRISTICS
Calculated MTBF (Telcordia) TR-NWT-000332
Calculated MTBF (MIL-217) MIL-HDBK-217F
Field Demonstrated MTBF
T
A
= 25 °C, airflow rate = 300 LFM,
V
IN
=
36
V
DC
unless otherwise
noted; full operating temperature range is -40 °C to +100 °C ambient
temperature with appropriate power derating. Specifications subject to change without notice.
Parameter
Min.
-40
-55
-2
18
16.6
15.0
200
230
2.4
-2
Typ.
36
17.0
15.4
1.6
220
9
230
0
30
1000
250
5
50
125
10
2.5
2.0
Max.
80
75
2250
2250
2250
100
125
18
75
17.4
15.8
250
125
125
125
100
270
18
0.8
Units notes & Conditions
V
V
Vdc
Vdc
Vdc
°C
°C
V
V
V
V
V
µF
ms
ms
%
MW
pF
°C
°C
°C
°C
kHz
V
V
V
kW
°C
°C
Continuous
Continuous
Not applicable
Basic insulation, Pollution Degree 2
Baseplate temperature
Not applicable
Typical ESR 0.1-0.2 W
Full load, V
out
=90% nom.
See Figure F
Maximum Output Capacitance
See Absolute Maximum Ratings
Package rated to 150 °C
UL rated max operating temp 130 °C
See Common Figure 3 for derating curve
Regulation and Isolation stages
Common Figures A & B
Average PCB Temperature
10
6
Hrs 80% load, 300LFM, 40 °C T
A
10
6
Hrs 80% load, 300LFM, 40 °C T
A
10
6
Hrs See our website for details
note 1: Higher values of isolation capacitance can be added external to the module.
Product # IQ36xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ36QTX Rev. B
09/23/08
Page 3
Technical
Specification
IQ36-QTC Family
IQ36 FaMIly STanDaRDS anD QUalIFICaTIOnS (all output voltages)
T
A
= 25 °C, airflow rate = 300 LFM, V
IN
= 36
V
DC
unless
otherwise noted; full operating temperature range is -40 °C to +100 °C ambient
temperature with appropriate power derating. Specifications subject to change without notice.
STANDARDS COMPLIANCE
Parameter
STANDARDS COMPLIANCE
UL/cUL 60950-1
EN60950-1
Needle Flame Test (IEC 695-2-2)
IEC 61000-4-2
Notes & Conditions
File # E194341, Basic insulation
Certified by TUV
Test on entire assembly; board & plastic components UL94V-0 compliant
ESD test, 8 kV - NP, 15 kV air - NP (Normal Performance)
Note: An external input fuse must always be used to meet these safety requirements. Contact SynQor for official safety certificates on new
releases or download from the SynQor website.
QUALIFICATION TESTING
Parameter
QUALIFICATION TESTING
Life Test
Vibration
Mechanical Shock
Temperature Cycling
Power/Thermal Cycling
Design Marginality
Humidity
Solderability
# Units
32
5
5
10
5
5
5
15 pins
Test Conditions
95% rated Vin and load, units at derating point, 1000 hours
10-55 Hz sweep, 0.060" total excursion, 1 min./sweep, 120 sweeps for 3 axis
100g minimum, 2 drops in x and y axis, 1 drop in z axis
-40 °C to 100 °C, unit temp. ramp 15 °C/min., 500 cycles
Toperating = min to max, Vin = min to max, full load, 100 cycles
Tmin-10 °C to Tmax+10 °C, 5 °C steps, Vin = min to max, 0-105% load
85 °C, 85% RH, 1000 hours, continuous Vin applied except 5 min/day
MIL-STD-883, method 2003
Product # IQ36xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ36QTX Rev. B
09/23/08
Page 4
Technical
Specification
IQ36-QTC Family
IQ36 FaMIly FIGUReS (all output voltages)
Nominal Vout
120
Typical Current Limit Inception Point
100
Output Voltage (%)
80
Typical Output Voltage at Shutdown
60
40
Vin, Min.
20
Vin, Typ.
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.
Common Figure 2:
Output voltage vs. load current showing typical
current limit curves and converter shutdown points.
100,000.0
1,000,000.0
Trim Resistance (kOhms)
Trim Resistance (kOhms)
10,000.0
100,000.0
1,000.0
10,000.0
100.0
1,000.0
10.0
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
100.0
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1.8 V
3.3 V
5V
7V
12 V
15 V
24 V
30 V
48 V
Common Figure 3:
Trim graph for trim-up 1.8 to 12 V outputs.
10,000.0
% Decrease in Vout (All voltages)
Common Figure 4:
Trim graph for trim-up 15 to 48 V outputs.
Trim Resistance (kOhms)
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 (All voltages)
Common Figure 5:
Trim graph for trim down.
Product # IQ36xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ36QTX Rev. B
09/23/08
Page 5
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