Optimized for harsh environments in industrial/railway applications, the IRQ
DC-DC converter series offer regulated outputs in an industry-standard
quarter brick fully encased package.
FEATURES
DC input range: 57.6-160V
(Covers both 96V and 110V input range)
Encapsulated circuitry for optimal thermal/vibration
performance
Regulation: ±0.3% from no load to full load
High Efficiency
Maximum baseplate operating temperature: 110ºC,
full load
Over-current & Over-temperature protection
Synchronous rectifier topology
Stable no-load operation
Support Pre-Bias startup
PRODUCT OVERVIEW
The IRQ series regulated converter module
deliver a 5V, 12V or 24V output @ Vin = 57.6
– 160 Vdc in an industry standard quarter
brick fully encased package at astonishing
efficiency. The fully isolated (3000Vdc) IRQ
series accept a 57.6 to 160 Volt DC input
voltage range with a reinforced insulation
system. Typical applications include
industrial, railway and transportation
applications.
The IRQ’s synchronous-rectifier topology and
fixed frequency operations means excellent
efficiencies. A wealth of electronic protection
features include input under voltage lockout,
over voltage lockout protection, output
current limit, current sharing, short circuit
hiccup, Vout overshoot, and over temperature
shutdown.
Available options include various pin lengths
and flanged baseplate. The IRQ series is
designed to meet all UL and IEC emissions,
safety, and flammability certifications.
SAFETY FEATURES
Reinforced insulation
3000Vdc input to output isolation
EN 50155
UL 60950-1 (Pending)
CAN/CSA-C22.2 No. 60950-1 (Pending)
EN 60950-1
RoHS compliant
Slotted / Flanged Baseplate
“V” Option Pins / Pinout
Pin Dia : 0.080
Slotted / Flanged Baseplate
DOSA Pins / Pinout
Pin Dia : 0.040 / 0.060
Standard Baseplate
DOSA Pins / Pinout
Pin Dia : 0.040 / 0.060
For full details go to
ww w.murata-ps.com/rohs
www.murata-ps.com/support
SDC_IRQ_A01.D06 Page 1
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IRQ Series
Encapsulated 100-Watt Isolated DC-DC Converter
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
① ②
Output
Root Model
①
VOUT IOUT
(V) (A, max)
Total
Power
(W)
100
100
100
Ripple & Noise
(mVp-p)
Typ.
IRQ-5/20-T110
IRQ-12/8.3-T110
IRQ-24/4.2-T110
5
12
24
20
8.3
4.2
80
50
100
Max.
150
120
240
Regulation (max.)
Line
±0.2%
±0.6%
±0.3%
Load
±0.3%
±0.5%
±0.3%
110
110
110
57.6-160
57.6-160
57.6-160
150
50
20
2.06
2.50
2.50
Input
Efficiency
VIN Nom.
(V)
Range
(V)
IIN, no load
(mA)
IIN, full load
(A)
Min.
83.0%
87.0%
86.5%
Typ.
85.5%
87.4%
88.2%
①
Please refer to the part number structure for additional options and complete ordering part numbers.
②
All specifications are at nominal line voltage and full load, +25 ºC. Unless otherwise noted. See detailed specifications. Output capacitors are 1 μF ceramic in parallel with 10 μF
electrolytic. I/O caps are necessary for our test equipment and may not be needed for your application.
Part Number Structure
Note: Please see mechanical drawings for details. Special order applies to Positive Logic version. Some model number combinations may not be
available. See website or contact your local Murata sales representative.
www.murata-ps.com/support
SDC_IRQ.A01.D06
Page
2
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28
IRQ Series
Encapsulated 100-Watt Isolated DC-DC Converter
IRQ SERIES FUNCTIONAL SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
Input Voltage, Continuous
Input Voltage, Transient
100 mS max. duration
Input to output
Isolation Voltage
Input to Baseplate
Output to Baseplate
On/Off Remote Control
Operating Temperature Range
Storage Temperature Range
Referred to -Vin
Ambient Temperature
Baseplate Temperature
0
-40
-55
Conditions
Minimum
0
Typical/Nominal
Maximum
160
170
3000
1500
500
15
85
125
Units
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
°C
°C
Absolute maximums are stress ratings. Exposure of devices to greater than any of these conditions may adversely affect long-term reliability. Proper operation under conditions other
than those listed in the Performance/Functional Specifications Table is not implied nor recommended.
INPUT
Operating Input Voltage Range
Turn-on Voltage Threshold
Turn-off Voltage Threshold
Lockout Voltage Hysteresis
Recommended External Input
Capacitance
0
52
50
54.5
52
TBD
TBD
160
57
56
Vdc
Vdc
Vdc
Vdc
uF
FEATURES and OPTIONS
Conditions
Minimum
Typical/Nominal
Maximum
Units
Primary On/Off control (designed to be driving with an open collector logic, Voltages referenced to -Vin)
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