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| B_(X)T-1W Series 1W,FIXED INPUT, ISOLATED & UNREGULATED SINGLE OUTPUT, SMD DC-DC CONVERTER FEATURES SMD Package Style Industry Standard Pinout No Heat sink Required 1KVDC Isolation High Power Density Internal SMD construction Temperature Range: -40C to +85C No External Component Required RoHS Compliance multi-country patent protection RoHS PRODUCT PROGRAM Input Part Number B0303(X)T-1W B0305(X)T-1W B0503(X)T-1W B0505(X)T-1W B0509(X)T-1W B0512(X)T-1W B0515(X)T-1W B1205(X)T-1W B1209(X)T-1W 5 4.5-5.5 Voltage (VDC) Nominal 3.3 Range 3.0-3.6 Voltage (VDC) 3.3 5 3.3 5 9 12 15 5 12 10.8-13.2 9 12 15 3.3 5 24 21.6-26.4 9 12 15 24 Output Current (mA) Max 303 200 303 200 111 84 67 200 111 84 67 300 200 110 83 67 42 Min 30 20 30 20 12 9 7 20 12 9 7 30 20 11 8 7 4 73 74 72 77 76 79 78 69 73 73 74 69 70 72 75 76 77 UL UL Efficiency (%, Typ.) UL CE ULCE ULCE ULCE ULCE ULCE ULCE ULCE ULCE APPLICATIONS The B_(X)T-1W 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 10%); 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 not demanding. Such as: purely digital circuits, ordinary low frequency analog circuits, and IGBT power device driving circuits. B1212(X)T-1W B1215(X)T-1W B2403(X)T-1W B2405(X)T-1W B2409(X)T-1W B2412(X)T-1W B2415(X)T-1W B2424(X)T-1W 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. ISOLATION SPECIFICATIONS Item Isolation voltage Isolation resistance Test Conditions Tested for 1 minute and 1mA max Test at 500VDC Min 1000 1000 Typ. Max Units VDC M OUTPUT SPECIFICATIONS Item Output power Line regulation For Vin change of 1%(3.3V output) For Vin change of 1%(Others output) 10% to 100% load (3.3V output) 10% to 100% load (5V output) Load regulation 10% to 100% load (9V output) 10% to 100% load (12V output) 10% to 100% load (15V output) 10% to 100% load (24V output) Output voltage accuracy Temperature drift 100% full load 20MHz Bandwidth Full load, nominal input(5/12V) Full load, nominal input(24V) 50 100 500 Output ripple &Noise* Switching frequency See tolerance envelope graph 0.03 100 %/C mVp-p KHz 15 12.8 8.3 6.8 6.3 5 Test Conditions Min 0.1 Typ. Max 1 1.5 1.2 20 15 10 10 10 10 % Units W MODEL SELECTION B0505(X)T-1W Ra ted Power Pac ka ge Style Ou t put Voltage Inp ut Voltage Pro duct Series MORNSUN Science& Technology co.,Ltd. Address: 2th floor 6th building, Huangzhou Industrial District, Guangzhou, China Tel: 86-20-38601850 Fax:86-20-38601272 Http://www.mornsun-power.com *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=25C, 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 Storage humidity Operating temperature Storage temperature Temp. rise at full load Lead temperature Cooling Package material Short circuit protection* MTBF Weight *Supply voltage must be discontinued at the end of short circuit duration. APPLICATION NOTE Min -40 -55 15 Typ Max 95 85 125 25 260 Free air convection Epoxy Resin(UL94V-0) 1 3500 1.41 s K Hours g C Units % 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. Recommended testing circuit 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). Single Output L L Test Conditions 1.5mm from case for 10 seconds TYPICAL CHARACTERISTICS Vin Cin +Vo DC DC Cout 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 and reliable operation is ensured, the greatest capacitance of its filter capacitor sees (Table 1). EXTERNAL CAPACITOR TABLE (Table 1) Vin (VDC) 3.3/5 12 24 Cin (uF) 4.7 2.2 0.47 Vout (VDC) 3.3/5 9 12 15 24 Cout (uF) 10 4.7 2.2 1 0.47 RECOMMENDED REFLOW SOLDERING PROFILE 2 50 Te m p e ra tu r e ( o C) 2 00 1 50 1 00 50 0 Time ( s ec .) 90 Se c Ma x ( >22 0 oC ) 26 0 C 10 Sec Max o 22 0o C - It's not recommend to connect any external capacitor in the application field with less than 0.5 watt output. OUTLINE DIMENSIONS & FOOTPRINT DETAILS 4.13 (0.163) First Angle Projection Output Voltage Regulation and Over-voltage Protection Circuit The simplest device for output voltage 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). 6.25 (0.246) 6.00 (0.236) (Side view) 2.54 0.25 (0.100) (0.100) RECOMMENDED FOOTPRINT Top view,grid:2.54*2.54mm(0.1*0.1inch) B_T-1W 8765 B_(X)T-1W 8 12 5 4 12.70 (0.500) 7.62 (0.300) 11.2 MAX (0.441) 7.50 (0.295) Vin GND REG +Vout 2.00 (0.079) 1234 DC DC 0V REG (Top view) (0.039) Vin GND +Vout DC DC 0V 2.540.1 (0.1000.004) 6.76 (0.266) 0.600.05 (0.0240.002) 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 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) 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 A 1.85MAX (0.073) 7.19 (0.283) 0.30 (0.012) 0.50 (0.020) 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 1.35MAX (0.053) 5.00 MORNSUN reserves the copyright Specifications subject to change without notice. |
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