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| B_(X)T-W2 Series 0.25W,FIXED INPUT, ISOLATED & UNREGULATED SINGLE OUTPUT, SMD DC-DC CONVERTER multi-country patent protection RoHS FEATURES Single Voltage Output SMD Package Style No Heat sink Required 1KVDC Isolation Temperature Range: -40C to +85C Internal SMD construction No External Component Required Industry Standard Pinout RoHS Compliance PRODUCT PROGRAM Input Part Number B0503(X)T-W2 B0505(X)T-W2 B0509(X)T-W2 B0512(X)T-W2 B0515(X)T-W2 B1205(X)T-W2 B1209(X)T-W2 12 10.8-13.2 5 4.5-5.5 Voltage (VDC) Nominal Range Voltage (VDC) 3.3 5 9 12 15 5 9 12 15 5 24 21.6-26.4 9 12 15 Output Current (mA) Max 76 50 28 21 17 50 28 21 17 50 28 21 17 Min 8 5 3 2 2 5 3 2 2 5 3 2 2 62 64 65 67 66 65 64 63 64 60 61 63 65 Efficiency (%, Typ.) APPLICATIONS The B_(X)T-W2 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-W2 B1215(X)T-W2 B2405(X)T-W2 B2409(X)T-W2 B2412(X)T-W2 B2415(X)T-W2 Note: The B_XT-W2 series have no 3,6,7 pin. For example B0505XT-W2. 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) 15 12.8 8.3 6.8 6.3 Test Conditions Min Typ. Max 0.25 1.5 1.2 20 15 10 10 10 % Units W MODEL SELECTION 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) Output voltage accuracy Temperature drift Output ripple &Noise* 100% full load 20MHz Bandwidth Full load, nominal input(24V input) Full load, nominal input (others input) B0505(X )T-W2 Ra ted Power P ackage Styl e Output Vol tag e Inpu t Vol tag e P ro duct Se ri es See tolerance envelope graph 0.03 50 500 110 75 %/C mVp-p KHz 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 Switching frequency *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-W2 A/1-2008 Page 1 of 2 COMMON SPECIFICATION Item Storage humidity Operating temperature Storage temperature Temp. rise at full load Lead temperature Cooling Case material Short circuit protection* MTBF Weight *Supply voltage must be discontinued at the end of short circuit duration. 3500 1.35 1.5mm from case for 10 seconds -40 -55 15 Test Conditions Min Typ. Max 95 85 125 25 260 Free air convection Plastic(UL94-V0) 1 s K hours g C Units % APPLICATION NOTE 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 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). L TYPICAL CHARACTERISTICS Vin Cin +Vo DC DC (Figure 1) Cout GND 0V 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. It's not recommended to connect any external capacitor in the application field. RECOMMENDED REFLOW SOLDERING PROFILE 250 Temperature ( o C) 200 150 100 50 0 Time ( s ec . ) 90 Sec Max (>220 o C ) 260 C 1 0 S ec M ax o 22 0o C 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). OUTLINE DIMENSIONS & FOOTPRINT DETAILS 4.13 (0.163) Vin GND REG +Vout First Angle Projection RECOMMENDED FOOTPRINT Top view,grid:2.54*2.54mm(0.1*0.1inch) DC DC 0V REG 6.25 (0.246) 6.00 (0.236) (Side view) 2.54 0.25 (0.100) (0.100) 12.70 (0.500) 7.62 (0.300) Vin B_T-W2 B_(X)T-W2 +Vout GND 8765 2.00 (0.079) DC DC 0V 8 12 5 4 1234 1.00 (0.039) (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 at the input end or add a circuit breaker to the circuit. No parallel connection or plug and play. 11.20 (0.441) 7.50 (0.295) (Top view) 2.54 0.10 (0.100 0.004) 0.60 0.05 (0.024 0.002) 6.76 (0.266) A 1.85 (0.073) 7.19 (0.283) 0.3 (0.012) FOOTPRINT DETAILS Pin Function(T) Function(XT) 1 GND GND 2 Vin Vin 4 0V 0V 5 +Vo +Vo NC No Pin 3,6,7 8 NC NC NC:No Connection Note: Unit:mm(inch) Pin section:0.60*0.25mm(0.024*0.010inch) Pin section tolerances: 0.10mm( 0.004inch) General tolerances: 0.15mm( 0.006inch) 0.50 (0.020) 1.35 (0.053) 5.00 MORNSUN reserves the copyright Specifications subject to change without notice. B_(X)T-W2 A/1-2008 Page 2 of 2 |
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