www.murata-ps.com RBQ-12/33-D48 Quarter-Brick 400-Watt Isolated DC-DC Converters Output (Vout, max) Current (A) Nominal Input (V) 11.85 33 48 TTypical uniypical unitt FEAFEATTURESURES PRODUCT OVERVIEW The fully isolated (2250 Vdc) RBQ-12/33-D48 zero air ow higher temperature applications may 391 Watts total output power, 11.85 VDC 33 A module accepts a 36 to 75 Volt DC input voltage use the optional base plate for cold surface mount- Regulated Intermediated Bus Architecture (RIBA) range (48 VDC nominal) and converts it to a low Vdc ing or natural-convection heatsinks. with PoL converters output. Applications include 48V-powered datacom 96% ultra-high ef ciency at full load (typical) A wealth of electronic protection features include and telecom installations, base stations, cellular 36 to 75 Volt DC input range (48 VDC nominal) input undervoltage lockout (UVLO) , output current dataphone repeaters, instruments and embedded limit, short circuit hiccup, and overtemperature Standard quarter-brick footprint systems. Wideband output ripple and noise is a low shutdown. Available options include positive or Synchronous recti er topology with 100 mV 100 mV, peak-to-peak. negative logic remote On/Off control, conformal ripple & noise The RBQs synchronous-recti er topology with coating, various pin lengths, and the baseplate. Up to +85 Celsius thermal performance (with line regulation and xed frequency operation Assembled using ISO-certi ed automated surface- derating) means excellent ef ciencies up to 96%, enabling mount techniques, the RBQ series is certi ed to Stable no-load operation no heatsink operation for most applications up all UL and IEC emissions, safety and ammability Multiple-unit parallel operation for increased to +85 Celsius (with derating air ow). No fan or standards. current Fully isolated to 2250 VDC (BASIC) Remote On/Off enable control Extensive protection features SC, OC, UVLO, OT Certi ed to full safety, emissions and environ- mental standards Meets UL 60950-1, CAN/CSAC22.2 No. 60950- 1, IEC60950-1, EN60950-1 safety approvals (2nd Edition) *TPMB UJPO F1 +Vin (1) +Vout (8) Barrier t 4XJUDIJOH External t JMUFST On/Off DC Controller Control Power t VSSFOU 4FOTF (2) and Power Source SBOTGFS5 Open = On Reference and Duty Cycle MPTFE 0GG 3FHVMB UJPO Error Amplier 1 PTJUJWF MPHJD -Vin (3) -Vout (4) Figure 1. Connection Diagram Typical topology is shown. Murata Power Solutions recommends an external fuse at F1. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MDC RBQ-12/33-D48.A01 Page 1 of 15RBQ-12/33-D48 Quarter-Brick 400-Watt Isolated DC-DC Converters PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Output Input Ripple & Noise Effi- Total IIN, min. IIN, full (mVp-p) Regulation (max.) ciency Dimensions (baseplate) VOUT (V, IOUT Power VIN Nom. Range load load Root Model max) (A, max) (W, max) Typ. Max. Line (%) Load (%) (V) (V) (mA) (A) Typ. (inches) (mm) RBQ-12/33-D48 11.85 33 391 100 200 +1/-2 3 48 36-75 140 8.59 96% 2.3 x 1.45 x 0.5 58.4 x 36.8 x 12.7 Please refer to the part number structure for additional options and complete ordering part All speci cations are at nominal line voltage and full load, +25 deg.C. unless otherwise noted. numbers. See detailed speci cations. Output capacitors are 1F, 10uF and 470F in parallel, with a 220F Regulation speci cations describe the output voltage deviations as the line voltage or load input capacitor. I/O caps are necessary for our test equipment and may not be needed for your current is varied from its nominal/midpoint value to either extreme. (Load step = 25 %). Line application. Regulation tested from 40V to 75V, output nominal load. PART NUMBER STRUCTURE RB Q - 12 / 33 - D48 N B S H Lx - C Output Con guration RoHS Hazardous Materials compliance RB = Regulated Converter C = RoHS 6 (does not claim EU RoHS exemption 7blead in solder), standard Quarter-Brick Package Pin Length Option (Through-hole packages only) Isolated converter Blank = Standard pin length 0.180 inches (4.6mm) L1 = Pin length 0.110 inches (2.79mm)* L2 = Pin length 0.145 inches (3.68mm)* Maximum Output Voltage (11.85V) Conformal coating (optional) Blank = no coating, standard H = Coating added, optional* *Special quantity order is required no sample quantities available. Maximum Rated Output Load Share Option Blank = no share Current in Amps S = Load share Input Voltage Range Baseplate B = Baseplate installed, standard D48 = 36-75V, 48V nominal Note: Some model number combinations may On/Off Control Logic Option not be available. Please contact Murata Power N = Negative logic Solutions for ordering assistance. P = Positive logic www.murata-ps.com/support MDC RBQ-12/33-D48.A01 Page 2 of 15