PAH-28 Vout, 350-Watt Series www.murata-ps.com Isolated, 350-Watt, Half-Brick DC-DC Converters Output (V) Current (A) Input Voltage (V) 28 12.5 18-36 or 36-75 TTypical unitypical unit FEATURES PRODUCT OVERVIEW For applications requiring improved electrical and The module provides a 28Vdc output at 12.5 Amps 28Vout 12.5A (350W) thermal performance, consider Muratas new PAH and accepts a wide input voltage range of 18-36 or Trimmable 16.8 Vout to 32.2 Vout 350W series Half Brick DC-DC power converters. These 36-75 Vdc. The PAH topology offers high effi ciency with Vin = 18-36V (D24) or 36-75V (D48) compact modules measure 2.3 X 2.4 X 0.5 (58 (up to 93%), tight line and load regulation, low ripple/ Industry Standard Half Brick package noise, and a fast dynamic load response. A single- X 61 X 12.7mm) and offer the industry-standard High Effi ciency: up to 93% board, highly optimized thermal design contributes to Half Brick footprint. Outstanding thermal performance the superior thermal performance. The PAH Series is ideal for power amplifi er Standard baseplate for conduction cooled These half-bricks provide output trim, sense applications, wireless networks, and telecom applications pins, and primary side on/off control. Standard fea- applications. The baseplate provides a means for No output reverse conduction tures also include input under-voltage shutdown, conduction cooling in demanding thermal environ- output over-voltage protection, output short-circuit/ ment conditions. Input to Output Isolation, 2250Vdc (Basic) current limiting protection, and thermal shutdown. Input under-voltage lockout On/Off Control (Positive or Negative Logic) Output over-voltage protection Thermal shutdown Output short circuit protection (hiccup technique) Certifi ed to UL/EN 60950-1, CSA-C22.2 No. 60950-1, 2nd edition safety approvals F1 +Vin +Vout Barrier Case ground External DC NOTE: A minimum of 470F Controller Power of capacitance is required and Power Source on the output to ensure Cout stable operation. An ESR equal to or less than 0.02 Open = On is also required. On/Off Reference and Control Error Amplier Trim logic) -Vin -Vout Figure 1. Simplifi ed Schematic Typical topology is shown. Some models may vary slightly. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support M DC PAH-28Vout-350W.B07 Page 1 of 21PAH-28 Vout, 350-Watt Series Isolated, 350-Watt, Half-Brick DC-DC Converters PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Output Input Efficiency IOUT IIN, no IIN, full Power R/N (mV pk-pk) Regulation (Max.) VOUT VIN Nom. Range Dimensions (Amps, load load (Volts) (Volts) (Volts) Root Model (Watts) Typ. Max. Line Load Min. Typ. (inches) Max.) (mA) (Amps) PAH-28/12.5-D24 28 12.5 350 75 200 0.125% 0.25% 24 18-36 80 15.7 91% 92.5% 2.3 x 2.4 x 0.5 PAH-28/12.5-D48 28 12.5 350 100 300 0.25% 0.25% 48 36-75 80 7.84 91.5% 93% 2.3 x 2.4 x 0.5 Please refer to the part number structure for additional ordering part numbers and options. Full power continuous output requires baseplate installation. Please refer to the derating curves. All specifications are at nominal line volta ge and full load, +25C. unless otherwise noted. See detailed specifications. NOTE: The following models are To Be Discontinued. PAH-28/12.5-D48PB1-C and PAH-28/12.5-D48PB-C PART NUMBER STRUCTURE PAH - 28 / 12.5 D48 N Bx H Lx C - - Power Amplifier RoHS Hazardous Materials compliance Half-Brick C = RoHS-6 (no lead), standard, does not claim EU exemption 7b lead in solder Nominal Output Voltage Pin length option Blank = standard pin length 0.180 in. (4.57 mm) Maximum Output Current L1 = 0.110 in. (2.79 mm)* in Amps L2 = 0.145 in. (3.68 mm)* *Minimum order quantity is required. Input Voltage Range: Conformal coating (optional) Samples available with standard pin D24 = 18-36 Volts (24V nominal) Blank = no coating, standard length only. D48 = 36-75 Volts (48V nominal) H = Coating added* Baseplate (installed on all models) On/Off Control Logic B = Baseplate installed with standard M3-12.7 threaded rivet (typ. 4) Note: N = Negative logic B1 = Baseplate installed with unthreaded insert Some model number combinations may P = Positive logic not be available. See website or contact (see Mechanical section for details). your local Murata sales representative. www.murata-ps.com/support M DC PAH-28Vout-350W.B07 Page 2 of 21