RSB_T-3W Series WIDE INPUT ISOLATED & REGULATED 3W SINGLE OUTPUT SMD PACKAGE multi-country patent protection RoHS FEATURES PRODUCT PROGRAM ● Wide (2:1) Input Range ● Operating Temperature:-40°C~+85°C ● 1500VDC Isolation ● UL94-V0 Package ● No Heat Sink Required ● Industry Standard Pinout ● MTBF>1,000,000 hours ● Custom Service Available ● RoHS Compliance Input Part Number Voltage (VDC) Max Min RSB1205T-3W 5 600 60 75 RSB1209T-3W 9 330 33 78 RSB1212T-3W 12 Range 9~18 Max* 22 12 250 25 79 RSB1215T-3W 15 200 20 78 RSB2405T-3W 5 600 60 77 RSB2409T-3W 9 330 33 80 12 250 25 82 RSB2415T-3W 15 200 20 81 RSB4803T-3W 3.3 909 90 72 5 600 60 75 9 330 33 78 RSB4812T-3W 12 250 25 81 RSB4815T-3W 15 200 20 83 RSB2412T-3W The RSB_T-3W Series are specially designed for applications where a wide range input voltage power supplies are isolated from the input power supply in a distributed power supply system on a circuit board. These products apply to: 1) Where the voltage of the input power supply is wide range (voltage range: 2:1); 2) Where isolation is necessary between input and output (isolation voltage =1500VDC); 3) Where the regulation of the output voltage and the output ripple noise are demanded. Efficiency (%, Typ) Current(mA) Voltage (VDC) Nominal APPLICATIONS Output 24 18~36 40 RSB4805T-3W RSB4809T-3W 48 36~72 80 ISOLATION SPECIFICATIONS Item Isolation voltage Isolation resistance MODEL SELECTION RSB2405T-3W Test conditions Flash tested for 60 seconds Test at 500VDC Min 1500 1000 Typ Max Units VDC MΩ Max 3 ±1 ±2 ±0.5 ±0.75 ±0.2 ±0.5 ±0.03 50 50 100 300（PFM） Units W OUTPUT SPECIFICATIONS Rated Power Package Style Output Voltage Input Voltage Product Series MORNSUN Science& Technology Ltd. Address: 2th floor 6th building, Huangzhou Industrial District, Guangzhou, China Tel: 86-20-38601850 Fax: 86-20-38601272 Http://www.mornsun-power.com MORNSUN reserves the copyright Item 3W output power Output Voltage accuracy Load regulation Line regulation Temperature drift (Vout) Ripple Noise Switching frequency Test conditions See below products program Refer to recommended circuit From 10% to 100% load Input Voltage From Low to High Refer to recommended circuit 20MHz bandwidth 20MHz bandwidth 100% load, nominal input voltage Min 0.3 Typ % %/°C mVp-p KHz Note: 1.All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2.See below recommended circuits for more details. For any design change and upgrade, we will not make any prior notification A/1-2007 Page 1 of 2 COMMON SPECIFICATIONS Recommended Circuit Output Short Circuit Protection Temperature Rise at Full Load Cooling No-load Power Consumption Operating Temperature Range Storage Temperature Range Reflow Solding Profile*** Storage Humidity Range Case Material MTBF ***220℃ for 90sec,max Continuous, Automatic Recovery 20°C (typ) Free Air Convection 150mW (typical) -40°C~+85°C -50°C ~+125°C Peak Temp 260℃(10sec,max) ≤ 95% Plastic (UL94-V0) >1,000,000 hours TYPICAL CHARECTERISTICS All the RSB_T-3W Series have been tested according to the following recommended testing circuit before leaving factory. This series should be tested under load(Figure 1). Vin Vout Cin DC DC 0V GND If you want to further decrease the input/output ripple, you can increase capacitance properly or choose capacitors with low ESR. However, the capacitance should not be too high(Table 1) Extemal Capacitor Table(Table 1) Vout Temperature Derating Graph Cout/μF（max） 1000 5V 9V 680 12V 470 15V 220 3.3μF 2200 External Capacitor Although this series of DC/DC converter can work without external capacitor, in order to keep an optimum performance, however, it needs external capacitor. (Table 2) Operating Temp.( C ) FOOTPRINT DETAILS External Capacitor Table (Table 2) Pin Function 23,24 Vin 1,2 GND 13 +Vo 15 0V Others NC 2.18 17.78 (0.7) (0.085) (Top View) 14.4 16.1(0.63) 10 1112 (0.74) 1 2 3 18.8 15 14 13 0.5 100uF 24V&48V 10uF Cout (-40+85°C) 47uF (tantalum capacitor) When it is used in unregulated power supply, be sure that the fluctuating range of the power supply and the rippled voltage do not exceed the module standard. Input current of power supply should afford the startup current of this kind of DC/DC module (Figure 2) 10.5 24 23 22 12V Cout (0+70°C) 100uF (electrolytic capacitor) Input Current OUTLINE DIMENSIONS (1.27) Cin Input Current(A) Top View Vin Ip Input Voltage Range 0.27 (0.02) Input Voltage (V) (Side View) Note: Unit: mm(inch); Tolerance: ±0.25mm; All Pins on a 2.54mm pitch; APPLICATION NOTE The products cannot be used in parallel and in plug and play. Requirement on Output Load To ensure this module operate efficiently and reliably, a minimum load is specified for this kind of DC/DC converter in addition to a maximum load (namely full load). During operation, make sure the specified range of input voltage is not exceeded, the minimum out put load is not less than 10% Of the full load, If the actual load is less below the specified minimum load, the output ripple of this type of DC/DC converter may increase drastically. If the actual output power from the load in your circuit is very small, please connect a resistor with proper resistance at the output end to in parallel to increase the load, or use our company’s other products with a lower rated output power. MORNSUN reserves the copyright For any design change and upgrade, we will not make any prior notification A/1-2007 Page 2 of 2