IRS Series www.murata-ps.com Encapsulated Sixteenth-Brick DOSA-Compatible, Wide Input Isolated DC-DC Converters Typical units Output Voltage (V) Output Current (A) Input Voltage (V) 3.3 15 18-75 5 10 18-75 12 4.5 18-75 Optimized for harsh environments in industrial/railway applications, the IRS DC-DC converter series offer regulated outputs in an industry-standard sixteen-brick fully encased package. FEATURES PRODUCT OVERVIEW The world of brick DC-DC converters has seen FPGAs. No minimum load is required. For systems High efficiency synchronous flyback topology a steady size reduction. The IRS series makes requiring controlled startup/shutdown, an external 18-75 Volts DC wide input range with 3.3, 5 and another dramatic size shrink down to a sixteenth- remote On/Off control may use a switch, transistor 12 Volts for Output voltage brick width (0.90 inches) while still retaining a or digital logic. Up to 54 Watts total output power with over- high power output and full 2250 Volt DC isolation. Many self-protection features on the IRS series temperature shutdown The PC-board mount converter family accepts avoid both converter and external circuit hazards. 18to 75 Volts DC inputs and delivers fixed outputs These include input undervoltage lockout and Tiny 1.44 x 1.04 x 0.50 baseplate package regulated to within 0.125%. The IRS converters overtemperature shutdown. The output of these Industry standard DOSAbric format and pinout are ideal for datacom and telecom applications, DC-DC converters have current limit using the cell phone towers, data centers, server farms and hiccup autorestart technique and the outputs may Extensive self-protection shut down features network repeaters. be short-circuited indefinitely. Additional features Small footprint DC-DC converter, ideal for high IRS outputs may be trimmed while delivering fast include output overvoltage and reverse conduction current applications settling to current step loads and no adverse effects elimination. 2250 Volt Basic input/output isolation (48V models) from higher capacitive loads. Excellent ripple and The synchronous flyback topology yields high noise specifications assure compatibility to circuits efficiency for minimal heat buildup and no fan Operating temperature range -40 to +85C with using CPUs, ASICs, programmable logic and operation. derating Stable no-load operation with no required exter- nal components Certified to UL 60950-1, 2nd Edition, EN60950-1 safety approvals For full details go to www.murata-ps.com/rohs www.murata-ps.com/support SDC IRS Series.A01.D02 Page 1 of 26IRS Series Encapsulated Sixteenth-Brick DOSA-Compatible, Wide Input Isolated DC-DC Converters PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Output Input Efficiency Package Root Model R/N (mV pk-pk) Regulation (max.) Vout Iout Power Vin Nom. Range Iin , no load Iin , full (V) (A, max.) (W) (V) (V) (mA) load (A) Typ. Max. Line Load Min. Typ. Case (inches) IRS-3.3/15-Q48 3.3 15 49.5 90 125 0.15% 0.3% 48 18-75 25 1.16 87.5% 89% 1.44 x 1.04 x 0.50 IRS-5/10-Q48 5 10 50 90 130 0.125% 0.125% 48 18-75 30 1.14 88% 91% 1.44 x 1.04 x 0.50 IRS-12/4.5-Q48 12 4.5 54 115 150 0.125% 0.125% 48 18-75 25 1.24 89% 91% 1.44 x 1.04 x 0.50 Please refer to the Part Number Structure when ordering. Regulation specifications describe output voltage deviations from a nominal/midpoint All specifications are at nominal line voltage and full load, +25C unless otherwise value to either extreme (50% load step). noted. See detailed specifications. Output capacitors are 1 F ceramic multilayer in Iout = 13A max. if Vin < 36V. parallel with 10 F. Iout=8A max. if Vin <36V. I/O caps are necessary for our test equipment and may not be needed for your Iout = 3.5A max. if Vin < 36V. application. PART NUMBER STRUCTURE IR S - 12 / 4.5- Q48 N F - C Industrial-Railway RoHS-6 Compliant S = Sixteenth Brick Baseplate Blank = Standard Baseplate F = Flanged Baseplate See Mechanical Drawings for details Nominal Output Voltage: Voltage in Volts (V) On/Off Control Logic: N = Negative P = Positive Maximum Rated Output Current Current in Amps (A ) Input Voltage Range: Q48 = 1875 Volts (48V nominal) *Sense is included on the IRS-3.3/15-Q48 and IRS-5/10-Q48. Special quantity order is required. Some model number combinations may not be available. See website or contact your local Murata sales representative. www.murata-ps.com/support SDC IRS Series.A01.D02 Page 2 of 26