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Technical
Specification
IQ24-QTC Family
18-36 V
Cont. Input
50 V
Trans. Input
1.8-48 V
Outputs
120 W
Max Power
2250 V dc 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.
Operational Features
• High efficiencies, up to 93% at full rated load current
• Delivers full power with minimal derating - no heatsink required
• Operating input voltage range:
18-36 V, 50 V transient for 100 ms
• 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%
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)
contents
Page No.
Mechanical Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
IQ24 Family Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . 3 - 4
IQ24 Family Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
IQ24018QTC40 (1.8V, 40A) Characteristics and Figures . . . . . . . . . . 6 - 7
IQ24033QTC30 (3.3V, 30A) Characteristics and Figures . . . . . . . . . . 8 - 9
IQ24050QTC24 (5.0V, 24A) Characteristics and Figures . . . . . . . . . 10 - 11
IQ24070QTC17 (7.0V, 17A) Characteristics and Figures . . . . . . . . . 12 - 13
IQ24120QTC10 (12V, 10A) Characteristics and Figures . . . . . . . . . 14 - 15
IQ24150QTC08 (15V, 8.0A) Characteristics and Figures . . . . . . . . . 16 - 17
IQ24240QTC05 (24V, 5.0A) Characteristics and Figures . . . . . . . . . 18 - 19
IQ24300QTC04 (30V, 4.0A) Characteristics and Figures . . . . . . . . . 20 - 21
IQ24480QTC2F (48V, 2.5A) Characteristics and Figures . . . . . . . . . 22 - 23
Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 - 27
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 1
www.DataSheet4U.com
Technical
Specification
IQ24-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)
87654
0.26
(6.7)
Side View
0.500 ± 0.025
(12.7 ± 0.63)
Overall Height
0.18
(4.57)
2.39
(60.6)
2.00
(50.8)
1.86
(47.21)
0.18
(4.6)
0.47
(11.9)
123
M3 Threaded
Inserts
4 Places
See Note 9
0.600 (15.24)
1.030 (26.16)
0.300 (7.62)
0.010 ± 0.010
(0.25 ± 0.25)
Bottom Side Clearance
NOTES
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.
Pin
No.
1
2
3
4
5
6
7
8
PIN DESIGNATIONS
Name Function
Vin (+)
ON/OFF
Vin (-)
Vout (-)
SENSE (-)
TRIM
SENSE (+)
Vout (+)
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 sense1
Output voltage trim2
Positive remote sense3
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.
Product # IQ24xxxQTCxx
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-IQ24QTX Rev. C
09/23/08
Page 2
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