B_(X)T-1W Series 1W,FIXED INPUT, ISOLATED & UNREGULATED SINGLE OUTPUT, SMD DC-DC CONVERTER FEATURES PRODUCT PROGRAM SMD Package Style Industry Standard Pinout No Heat sink Required 1KVDC Isolation High Power Density Internal SMD construction Temperature Range: -40°C to +85°C No External Component Required RoHS Compliance Input Part Number Nominal Range 3.3 3.0-3.6 in a distributed power supply system on a circuit board. 1) Where the voltage of the input power supply is fixed (voltage variation ≤ ±10%); 2) Where isolation is necessary between output (isolation voltage Max UL CE Min 303 30 73 UL 20 74 UL B0503(X)T-1W 3.3 303 30 72 B0505(X)T-1W 5 200 20 77 UL，CE 9 111 12 76 UL，CE B0512(X)T-1W 12 84 9 79 UL，CE B0515(X)T-1W 15 67 7 78 UL，CE B1205(X)T-1W 5 200 20 69 UL，CE B1209(X)T-1W 9 111 12 73 UL，CE 12 84 9 73 UL，CE UL，CE 5 12 4.5-5.5 10.8-13.2 B1215(X)T-1W 15 67 7 74 B2403(X)T-1W 3.3 300 30 69 B2405(X)T-1W 5 200 20 70 B2409(X)T-1W 9 110 11 72 12 83 8 75 B2415(X)T-1W 15 67 7 76 B2424(X)T-1W 24 42 4 77 B2412(X)T-1W These products apply to: Efficiency (%, Typ.) Current (mA) 200 B1212(X)T-1W supplies are isolated from the input power supply Voltage (VDC) 5 B0509(X)T-1W for applications where a group of polar power Output 3.3 B0305(X)T-1W The B_(X)T-1W Series are specially designed and Voltage (VDC) B0303(X)T-1W APPLICATIONS input multi-country patent protection RoHS 24 21.6-26.4 Note: 1.the B_XT-1W series have no 3,6,7 pin. For example B0505XT-1W. 2. B_XT-1W series : UL-60950-1 pending. ≤1000VDC); 3) Where the regulation of the output voltage and the output ripple noise are not demanding. Such as: purely digital circuits, ordinary low ISOLATION SPECIFICATIONS Item Test Conditions Min Typ. Max Units Isolation voltage Tested for 1 minute and 1mA max 1000 VDC Isolation resistance Test at 500VDC 1000 MΩ frequency analog circuits, and IGBT power device driving circuits. OUTPUT SPECIFICATIONS Item Test Conditions Min Output power Line regulation MODEL SELECTION Ra ted Power Pac ka ge Style Ou t put Voltage Inp ut Voltage Pro duct Series Load regulation MORNSUN Science& Technology co.,Ltd. W 15 20 10% to 100% load (5V output) 12.8 15 10% to 100% load (9V output) 8.3 10 10% to 100% load (12V output) 6.8 10 10% to 100% load (15V output) 6.3 10 10% to 100% load (24V output) 5 10 % See tolerance envelope graph Temperature drift 100% full load Output ripple &Noise* 20MHz Bandwidth Switching frequency Units 1 ±1.2 For Vin change of 1%(Others output) Output voltage accuracy Address: 2th floor 6th building, Huangzhou Industrial District, Guangzhou, China Tel: 86-20-38601850 Fax:86-20-38601272 Http://www.mornsun-power.com Max ±1.5 For Vin change of 1%(3.3V output) 10% to 100% load (3.3V output) B0505(X)T-1W Typ. 0.1 50 Full load, nominal input(5/12V) 100 Full load, nominal input(24V) 500 0.03 %/°C 100 mVp-p KHz *Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of Power Converter section, application notes. 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. MORNSUN reserves the copyright Specifications subject to change without notice. B_(X)T-1W A/2-2008 Page 1 of 2 COMMON SPECIFICATION Item APPLICATION NOTE Test Conditions Min Typ Storage humidity Max Units 95 % Operating temperature -40 85 Storage temperature -55 125 Temp. rise at full load 15 Lead temperature reliably, During operation, the minimum output load °C 25 1.5mm from case for 10 seconds load! If the actual output power is very small, please Free air convection Package material connect a resistor with proper resistance at the Epoxy Resin(UL94V-0) Short circuit protection* 1 MTBF 3500 Weight is not less than 10% of the full load, and that this product should never be operated under no 260 Cooling Requirement on output load To ensure this module can operate efficiently and output end in parallel to increase the load. s K Hours Recommended testing circuit If you want to further decrease the input/output g ripple, an “LC” filtering network may be connected 1.41 *Supply voltage must be discontinued at the end of short circuit duration. to the input and output ends of the DC/DC converter, see (Figure 1). TYPICAL CHARACTERISTICS Single Output L L +Vo Vin Cout DC DC Cin GND 0V (Figure 1) 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 Operating Temp.(oC) capacitance is too big, a startup problem might arise. For every channel of output, provided the safe RECOMMENDED REFLOW SOLDERING PROFILE 2 50 Te m p e ra tu r e ( o C) and reliable operation is ensured, the greatest capacitance of its filter capacitor sees (Table 1). o 26 0 C 10 Sec Max EXTERNAL CAPACITOR TABLE (Table 1) 22 0o C 2 00 1 50 90 Se c Ma x ( >22 0 oC ) 1 00 4.13 (0.163) 6.25 (0.246) 6.00 (0.236) First Angle Projection RECOMMENDED FOOTPRINT Top view,grid:2.54*2.54mm(0.1*0.1inch) B_T-1W 8 7 6 5 7.50 (0.295) 11.2 MAX (0.441) 12.70 (0.500) 7.62 (0.300) 2.00 (0.079) 0.60±0.05 (0.024±0.002) 6.76 (0.266) A 7.19 (0.283) 1 2 3 4 B_(X)T-1W 9 4.7 0.47 12 2.2 - - 15 1 - - 24 0.47 0.30 (0.012) regulation, over-voltage and over-current protection is a linear voltage regulator with overheat protection that is connected to the input or output end in series (Figure2). 8 1 2 5 4 (0.039) (Top view) 2.54±0.1 (0.100±0.004) 1.85MAX (0.073) 2.2 24 Output Voltage Regulation and Over-voltage Protection Circuit The simplest device for output voltage OUTLINE DIMENSIONS & FOOTPRINT DETAILS 2.54 0.25 (0.100) (0.100) Cout (uF) 10 It’s not recommend to connect any external capacitor in the application field with less than 0.5 watt output. Time ( s ec .) (Side view) Vout (VDC) 3.3/5 12 50 0 Cin (uF) 4.7 Vin (VDC) 3.3/5 FOOTPRINT DETAILS Pin Function(T) Function(XT) GND GND 1 Vin Vin 2 0V 4 0V +Vo +Vo 5 No Pin 3,6,7 NC NC NC 8 NC:No Connection Vin +Vout REG DC DC GND 0V REG Vin GND +Vout DC DC 0V （Figure2） 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 0.50 (0.020) 1.35MAX (0.053) 5.00 。 MORNSUN reserves the copyright Note: Unit:mm(inch) Pin section:0.60*0.25mm(0.024*0.010inch) Pin tolerances: +0.10mm( +0.004inch) General tolerances: +0.15mm( +0.006inch) Specifications subject to change without notice. at the input end or add a circuit breaker to the circuit. No parallel connection or plug and play. B_(X)T-1W A/2-2008 Page 2 of 2