UWR 26-40W Series www.murata-ps.com Single Output, High-Density, 3.3VOUT and 5 VOUT, 26-40 Watt, DC/DC Converters FEATURES Standard 2 x 2 packages/pinouts PRODUCT OVERVIEW Output voltages/currents: 3.3 Volts 8/9 Amps The newest products in Murata Power Solutions flagship A-Series are the UWR, 26-40 Watt isolated singles. Housed in standard 2 x 2 metal packages (which have tradition- 5 Volts 7/8 Amps ally carried 15-20 Watt devices), these power converters supply up to 9 Amps 3.3V or Choice of 3 input voltage ranges: 8 Amps at 5V. They exemplify Murata Power Solutions relentless drive to bring designers 10-18V, 18-36V, 36-75V more power/current, in standard packages/pinouts, without compromising reliability or Fully synchronous forward topology resorting to thermal specmanship. Input voltage ranges are 10-18V (D12 models), 18- 36V (D24 models) or 36-75V (D48) models. Outstanding performance: Employing an advanced, fully synchronous, high-frequency (300-360kHz) forward to- 1% setpoint accuracy pology, UWR 26-40W singles attain 88-90% efficiencies enabling full-power operation to Ef ciencies to 90% ambient temperatures as high as +55C without supplemental air flow. Assembled using Noise as low as 75mVp-p fully automated, SMT-on-pcb techniques, these DC/DCs additionally provide low noise (75mVp-p), high accuracy (1%), tight line/load regulation (0.5%), quick step response Stable no-load operation (200sec), and stable no-load operation. On/off control and VOUT trim pins All models feature input pi filters, input undervoltage and overvoltage shutdown, Fully isolated (1500Vdc) I/O protected output overvoltage protection, current limiting, short-circuit protection, and thermal shut- Thermal shutdown down. Each model has a VOUT trim pin as well as an on/off control function that may be ordered with either positive or negative logic. These devices are fully isolated (1500Vdc) Designed to meet UL/EN/IEC60950-1 and satisfy UL/EN/IEC60950-1 safety requirements. D48 models (36-75V inputs) are CE certi cation CE marked marked. FIGURE 1. SIMPLIFIED SCHEMATIC +INPUT +OUTPUT (1) (6) SWITCH CONTROL OUTPUT (7) THERMAL INPUT SHUTDOWN (2) PWM OPTO REFERENCE & VOUT CONTROLLER ISOLATION ERROR AMP TRIM (8) UVLO & OVLO COMPARATORS ON/OFF CONTROL Typical topology is shown. (4) For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MDC UWR26-40W.D01 Page 1 of 10UWR 26-40W Series Single Output, High-Density, 3.3VOUT and 5 VOUT, 26-40 Watt, DC/DC Converters Performance Speci cations and Ordering Guide Output Input Package R/N (mVp-p) Regulation (Max.) Ef ciency VIN Nom. Range IIN VOUT IOUT (Case, Model (Volts) (Amps) Typ. Max. Line Load (Volts) (Volts) (mA/A) Min. Typ. Pinout) UWR-3.3/8-D12A-C 3.3 8 75 110 0.05% 0.5% 12 10-18 145/2.97 88% 89% C4, P6 UWR-3.3/9-D24A-C 3.3 9 75 110 0.5% 0.5% 24 18-36 50/1.4 86% 88.5% C4, P6 UWR-3.3/9-D48AN-C 3.3 9 75 110 0.5% 0.5% 48 36-75 25/0.7 86% 88.5% C4, P6 UWR-5/7-D12A-C 5 7 75 110 0.5% 0.5% 12 10-18 160/3.26 85.5% 89.5% C4, P6 UWR-5/8-D24A-C 5 8 75 110 0.05% 0.15% 24 18-36 90/1.82 90% 91.5% C4, P6 UWR-5/8-D48AN-C 5 8 75 110 0.5% 0.5% 48 36-75 25/0.93 86% 90% C4, P6 As of September 2014, ONLY the following part numbers will be available: UWR-3.3/8-D12A-C UWR-5/8-D24A-C Typical at TA = +25C under nominal line voltage and full-load conditions, unless noted. Ripple/Noise (R/N) is tested/speciifed over a 20MHz bandwidth. All models are speci ed with an external 0.47F multi-layer ceramic capacitor installed across their output pins. Using a 10F multi-layer ceramic capacitor instead (e.g. TDK part no. C3225X5R1C106M) will further reduce the R/N to 35mVp-p typical and 75mVp-p maximum. Load regulation is speci ed over 0-100% load conditions. All models are stable and regulate within spec under no-load conditions, with perhaps a slight increase in output ripple/noise. Nominal line voltage, no-load/full-load conditions. Please refer to the part number structure when ordering. MECHANICAL SPECIFICATIONS PART NUMBER STRUCTURE 2.00 U WR - 3.3 / 9 - D48 A N - C (50.8) Output Con guration: METAL CASE RoHS-6 hazardous 0.45 U = Unipolar Case C4 (11.4) substance compliant Wide Range Input On/Off Logic, see below INSULATED BASE 0.040 0.002 DIA. (1.02 0.05) 0.20 MIN Nominal Output Voltage: (5.1) A-Series 1.800 0.10 3.3 or 5 Volts (45.72) (2.5) High Reliability Maximum Output Current Input Voltage Range: in Amps D12 = 10-18 Volts (12V nominal) 5 0.200 D24 = 18-36 Volts (24V nominal) (5.08) D48 = 36-75 Volts (48V nominal) 6 1.200 1 (30.48) 2.00 3 EQ. SP. (50.8) 2 0.400 (10.16) 7 0.400 Part Number Suf xes (10.16) 4 UWR 26-40W DC/DC s are designed so the On/Off Control function on pin 4 can be ordered with either positive (open orhig = on) or negative (open = off, pull low = on) logic. The standard part 8 0.40 number with no suf x denotes positive logic. Add an suf x to select negative logic. (10.2) 0.100 (2.54) No Suf x On/Off Control function (positive logic) on pin 4. Standard for D12, D24. BOTTOM VIEW Suf x On/Off Control function (negative logic) on pin 4. Standard for D48. I/O Connections Dimensions are in inches (mm shown for ref. only). Pin Function P6 Third Angle Projection 1 +Vin Note 2 Vin For D12A and D24A models, 3 No Pin the case is connected to 4 On/Off Control Pin 2 (Input). 5 No Pin Tolerances (unless otherwise specied): For D48A models, the case is .XX 0.02 (0.5) 6 +Vout connected to Pin 1 (+Input)XXX 0.010 (0.25) 7 Vout Angles 2 8 Trim Components are shown for reference only. www.murata-ps.com/support MDC UWR26-40W.D01 Page 2 of 10