2B-XSR Series FIXED INPUT,ISOLATED®ULATED Single Output DC/DC Converter SELECTION G UIDE Input Order code Output Switching Frequency (KHz,Typ) Nominal Range Max Min 2B0505XSR 5 4.75-5.25 5 400 40 70 100 2B0512XSR 5 4.75-5.25 12 167 17 78 96 FEATURES 2B0515XSR 5 4.75-5.25 15 100 10 75 97 RoHS compliant 2B1205XSR 12 11.4-12.6 5 400 40 71 55 Efficiency up to 84% 2B1212XSR 12 11.4-12.6 15 100 10 76 90 2B1215XSR 12 11.4-12.6 15 133 13 76 87 2B1505XSR 15 14.25-15. 5 400 40 71 67 2B2405XSR 24 22.8-25.2 75 5 400 40 71 67 2B2415XSR 24 22.8-25.2 15 133 13 75 65 ◆ ◆ SIP7 Package ◆ Wide temperature performance at full ◆ 2 Watt load,-40℃～85℃ Current(MA) Efficiency (%,Typ) Voltage (VDC) Voltage(VDC) UL 94V-0 package material ◆ No heat sink required ◆ Small Footprint ◆ Industry standard pin out ◆ ISOLAT ION SPECIF ICATI ONS Power sharing on output ◆ 1KVDC isolation ◆ Continuous Short Circuit Protection ◆ Internal SMD construction Parameter Test conditions Min. Typ. Max. Units Isolation test voltage Flash tested for 1 minute and 1mA max 1000 VDC Isolation resistance Test at Viso=500VDC 1000 MΩ ◆ No external components required ◆ MTTF up to 1.5 million hours ◆ MODEL SE LECTION 2B① 05② 05③ X④ S⑤ R⑥ ①Product Series ③Output Voltage ⑤SIP7 Package ②Input Voltage ④Fixed Input ⑥Rated Power Parameter APPLICATIONS The 2B_XSR series are specially designed for applications where a group of polar 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 fixed (voltage variation ≤±5%); 2) where isolation is necessary between input and output (isolation voltage ≤1000VDC); 3) where the regulation of the output voltage and the output ripple noise are demanded. http://www.microdc.cn OUTPUT SPECIFIC ATIO NS Test conditions Output power Min Typ. 0.2 . Max. Units 2 W Line regulation For Vin change of ±5% ±0.25 % Load regulation 10% to 100% full load ±1.5 % Output voltage accuracy 100% full load ±3 % Temperature drift 100% full load 0.03 %/°C Output Ripple* 20MHz Bandwidth 20 30 MV p-p Output Noise* 20MHz Bandwidth 50 100 MV p-p Full load,nominal input 100 Switching frequency * Test ripple and noise by "parallel cable" method. See detailed operation instructions at Testing of Power Converter section, application notes. Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 1 of 2 Khz 2B-XSR Series TEMPERATURE CHARACTERISTICS Parameter Conditions Recommended circuit Min. Typ. Storage humidity range Operating temperature -40 Storage temperature Lead temperature -55 1.5mm from case for 10 seconds 20 Temp.rise at full load Max. Units 95 % 85 °C 125 °C 30 °C 300 °C Cooling Free air convection Case material Plastic(UL94-V0) If you want to further decrease the input/output ripple, an "LC" filtering network may be connected to the input and output ends of the DC/DC converter, see (Figure 1). Continuous Short circuit protection 1* MTBF S 3500 K hours Weight 2.8 g *Supply voltage must be discontinued at the end of short circuit duration. TYPICAL CHARACTERISTICS Temperature Derating Graph It should also be noted that the inductance and the frequency of the "LC" filtering network should be staggered with the DC/DC frequency to avoid mutual interference. However, the capacitance of the output filter capacitor must be proper. If the capacitance is too big, a startup problem might arise. For every channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor sees (Table 1). EXTERNAL CAPACITOR TABLE (TABLE 1) Ci n Vout Vi n Cout (VDC) 5 (μF) 4.7 (VDC) 5 (μF) 4.7 12 15 2.2 1.0 - - 24 0.47 - - It's not recommend to connect any external capacitor in the application field with less than 0.5 watt output. OUTLINE DIMENSIONS & PIN CONNECTIONS Overload Protection Under normal operating conditions, the output circuit of these products has no protection against over-current and short - circuits . The simplest method is to connect a self-recovery fuse in series at the input end or add a circuit breaker to the circuit. SIZE Graph RECOMMENDED FOOTPRINT Top view,grid:2.54mm(0.1inch) diameter:1.00mm(0.039inch) Input Over-voltage Protection Circuit The simplest device for input over-voltage protection is a linear voltage regulator with overheat protection that is connected to the input end in series (Figure 2). FOOTPRINT DETAILS Pin Note: Unit:mm(inch) Pin section:0.50*0.3mm(0.020*0.012inch) Pin section tolerances:±0.10mm(±0.004inch) General tolerances:±0.25mm(±0.010inch) Function 1 VIN 2 GND 4 0V 6 +V0 All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.Another 24V products, please inquire Our technical department! Requirement on output load To ensure this module can operate efficiently and reliably, During operation, the minimum output load is not less than 10% of the full load, and that this product should never be operated under no load! If the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load.or use our company's products with a lower rated output power . No parallel connection or plug and play. Use dual output simultaneously, forbid opening output pin (0V) to use as single output. RoHS COMPLIANT INFORMATION This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300°C for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are backward compatible with Sn/Pb soldering systems. Microdc Professional Power Module,Inc. Tel:0086-20-86000646 When the environment temperature is higher than 71℃, the product output power should be less then 60% of the rated power. E-mail:[email protected] Website:http://www.microdc.cn http://www.microdc.cn REACH COMPLIANT INFORMATION This series has proven that this product does not contain harmful chemicals, it also has harmful chemical substances through the registration, inspection and approval. Technical Enquiries-Email:[email protected] Tel:0086-20-86000646 Page 2 of 2