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| B_LS-1W/ B_LD-1W Series FIXED INPUT ISOLATED & UNREGULATED 1W OUTPUT SINGLE OUTPUT MINIATURE SIP(DIP) PACKAGE FEATURES Efficiency to 81% Small Footprint SIP or DIP Package Single Output Voltage RoHS multi-country patent protection Output Current (mA) Max Min 300 30 200 20 300 30 200 20 111 12 83 9 50 5 67 7 300 30 200 20 111 12 83 9 67 7 300 30 200 20 111 12 83 9 67 7 PRODUCT PROGRAM Part Number B0303LS/D-1W B0305LS/D-1W B0503LS/D-1W B0505LS/D-1W B0509LS/D-1W B0512LS/D-1W B0515LS/D-W75 B0515LS/D-1W B1203LS/D-1W B1205LS/D-1W B1209LS/D-1W B1212LS/D-1W B1215LS/D-1W B2403LS/D-1W B2405LS/D-1W B2409LS/D-1W B2412LS/D-1W B2415LS/D-1W Input Voltage (VDC) Nomina Range 3.0~3.6 3.3 3.0~3.6 3.3 4.5~5.5 5 4.5~5.5 5 4.5~5.5 5 4.5~5.5 5 4.5~5.5 5 4.5~5.5 5 10.8~13.2 12 10.8~13.2 12 10.8~13.2 12 10.8~13.2 12 10.8~13.2 12 21.6~26.4 24 21.6~26.4 24 21.6~26.4 24 21.6~26.4 24 Voltage (VDC) Efficiency (%, Typ) Package Style SIP/DIP SIP/DIP SIP/DIP SIP/DIP SIP/DIP SIP/DIP SIP/DIP SIP/DIP SIP/DIP SIP/DIP SIP/DIP SIP/DIP SIP/DIP SIP/DIP SIP/DIP SIP/DIP SIP/DIP SIP/DIP 1KVDC Isolation Fixed Input Voltage Unregulated Output Voltage Temperature Range: -40C~+85C Industry Standard Pinout UL94-V0 Package No Heat sink Required No External Component Required PCB Mounting RoHS Compliance APPLICATIONS The B_LS(D)-1W Series is specially designed for applications where a single power supply is 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. These products don't apply to: 1) Where the input supply voltage is varied (variation10%), otherwise our company's WRB series is recommended; 2)Where the isolation voltage between input and output is required to be>1000VDC, otherwise our company's F_S(D)-1W Series of products are recommended; 3)he output load's actual power consumption is less than 0.25W, otherwise our company's B_LS(D)-0.25W Series are recommended. 24 21.6~26.4 3.3 5 3.3 5 9 12 15 15 3.3 5 9 12 15 3.3 5 9 12 15 72 73 74 72 74 77 68 79 75 73 75 79 80 76 74 76 80 81 COMMON SPECIFICATIONS Short circuit protection Temperature rise at full load Cooling Operating temperature range Storage temperature range Lead temperature Storage humidity range Case material MTBF 1 second 25C MAX, 15C TYP Free air convection -40C~+85C -55C ~+125C 300C (1.5mm from case for 10 seconds) 95% Plastic (UL94-V0) >3,500,000 hours ISOLATION SPECIFICATIONS Item Isolation voltage Isolation resistance Test conditions Tested for 1 minute Test at 500VDC Min 1000 1000 Typ Max Units VDC M OUTPUT SPECIFICATIONS Item Output power Line regulation Load regulation Output voltage accuracy Temperature drift Output ripple Switching frequency Test conditions For Vin change of 1% 10% to 100% full load See tolerance envelope graph 100% full load 20MHz Bandwidth Full load, nominal input MIN 0.1 10 TYP MAX 1 1.2 15 0.03 75 Units W % % %/C mVp-p KHz MODEL SELECTION B0505LS-1W Rated Power Package Style Output Voltage Input Voltage Product Series 50 100 MORNSUN Science& Technology Ltd. Address: 8th floor 8th building, Hangzhou Industrial District, Guangzhou, China Tel: 86-20-38601850 Fax: 86-20-38601272 http://www.mornsun-power.com 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 Edition: A NOV-2005 Page 1 of 2 TYPICAL CHARACTERISTICS Vin C L L +Vo C GND DC DC 0V Vin GND REG +Vout DC DC 0V REG Ambient Temperature ( C ) Vin GND +Vout DC DC 0V PIN CONNECTIONS Pin 1 2 4 6 Vin GND 0V +Vo BXXXXLS-Series 12 4 6 Pin 1 7 8 9 14 GND NC 0V +V Vin BXXXXLD-Series 1 14 7 9 8 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. OUTLINE DIMENSIONS& RECONMENDED FOOTPRINT DETAILS BXXXXLS-1W Package BXXXXLD-1W Package 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 (see Figure 2). Side View RoHS 12 4 6 Bottom View BXXXXLS-1W Package 2.54 1 14 7 98 BXXXXLD-1W Package 14 98 7 External Capacitor Table Vin 5VDC 12VDC 24VDC -External capacitor 4.7uF 2.2uF 1uF -Vout 5VDC 9VDC 12VDC 15VDC External capacitor 10uF 4.7uF 2.2uF 1uF 12 4 6 1 Note: All Pins on a 2.54mm pitch; all pin diameters are 0.50mm; all dimensions in mm. APPLICATION NOTE Filtering In some circuits which are sensitive to noise and ripple, a filtering capacitor may be added to the DC/DC output end and input end to reduce the noise and ripple. 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 the external capacitor table. To get an extremely low ripple, an "LC" filtering network may be connected to the input and output ends of the DC/DC converter, which may produce a more significant filtering effect. 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 (see figure 1). Requirement on output load To ensure this module can 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 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 (B_LS(D) -0.25W series). MORNSUN Science& Technology Ltd. Address: 8th floor 8th building, Huangzhou Industrial District, Guangzhou, China Tel: 86-20-38601850 Fax: 86-20-38601272 Http: //www.mornsun-power.com MORNSUN reserves the copyright Edition: A NOV-2005 Page 2 of 2 |
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