ISOLATED UNREGULATED DUAL OUTPUT DC/DC CONVERTER BxxxxLS-1W SERIES DESCRIPTION The BxxxxLS-1W series of DC/DC Converters is particularly suited to isolating and/or converting DC power rails. The galvanic isolation allows the device to be configured to provide an isolated negative rail in systems where only positive rails exist. The wide temperature range guarantees startup from –40°C and full 1 watt output at 85°C. FEATURES � RoHS compliant � 5V , 12V & 24V input � Single isolated output � 5V, 9V, 12V & 15V output � 1kVDC isolation � No heatsink required � Efficiency up to 85% � Internal SMD construction � Wide temperature performance at full 1 watt load, –40°C to � Fully encapsulated with toroidal magnetics 85°C � No external components required 3 � Power density 1.44W/cm � MTTF up to 2327 khours � UL 94V-0 package material � Custom solutions available � PCB mounting 2 � Footprint from 1.46cm � Industry standard pinout SELECTION GUIDE Input Output Output Input Current Voltage Voltage Current (Rated Load) (V) (V) (mA) (mA) % pF kHrs B0505LS-1W 5 5 200 289 69 30 2414 B0509LS-1W 5 9 111 260 77 37 1173 B0512LS-1W 5 12 83 256 78 33 663 B0515LS-1W 5 15 66 250 80 40 360 B0524LS-1W 5 24 42 248 81 48 290 B1205LS-1W 12 5 200 120 69 33 620 B1209LS-1W 12 9 111 115 73 48 488 B1212LS-1W 12 12 83 110 76 55 360 B1215LS-1W 12 15 67 110 76 56 111 B2405LS-1W 24 5 200 60 70 40 201 B2409LS-1W 24 9 111 56 75 59 185 B2412LS-1W 24 12 83 52 80 78 163 B2415LS-1W 24 15 67 52 80 79 136 B2424LS-1W 24 24 41 50 82 78 131 Order Code Efficiency Isolation Capacitance MTTF1 Package Style SIP When operated with additional external load capacitance the rise time of the input voltage will determine the maximum external capacitance value for guaranteed start up. The slower the rise time of the input voltage the greater the maximum value of the additional external capacitance for reliable start up. WWW.TYCEM.COM Guangzhou Tycem Electronics Limited Page 1 of 3 ISOLATED UNREGULATED DUAL OUTPUT DC/DC CONVERTER BxxxxLS-1W SERIES INPUT CHARACTERISTICS Parameter Voltage Range Conditions Min. Typ. Max. Continuous operation, 5V input types 4.5 5 5.5 Continuous operation, 12V input types 10.8 12 13.2 Continuous operation, 24V input types 21.6 24 26.4 Units V OUTPUT CHARACTERISTICS Parameter Rated Power 2 Conditions 5V & 12V input types TA=-40°C to 85°C 24V input types TA=0°C to 70°C Voltage Set Point Accuracy See tolerance envelope Line regulation High VIN to low VIN Min. Typ. Max. Units 1 W 1.2 %/% 1 10% load to rated load, 5V output types 15 10% load to rated load, other output types 10 Load Regulation % 5V & 12V Input Ripple and Noise 24V Input BW=DC to 20MHz, 5V output types 85 110 BW=DC to 20MHz, 9V output types 60 75 BW=DC to 20MHz, 12V output types 50 65 BW=DC to 20MHz, 15V output types 40 55 BW=DC to 20MHz, All output types mV p-p 150 ABSOLUTE MAXIMUM RATINGS Short-circuit protection 3 1 second Lead temperature 1.5mm from case for 10 seconds 300℃ Internal power dissipation 450mW Input voltage VIN, B05 types 7V Input voltage VIN, B12 types 15V Input voltage VIN, B24 types 28V GENERAL CHARACTERISTICS Parameter Switching frequency Conditions Min. All input types Type Max. 100 Units kHz TEMPERATURE CHARACTERISTICS Parameter Conditions 5V & 12V input types Specification 24V input types Storage All Case Temperature above ambient Cooling Min. Type Max. -40 85 0 70 -50 150 5V output types 41 All other output types 32 Units °C Free air convection ISOLATION CHARACTERISTICS Parameter Isolation test voltage WWW.TYCEM.COM Conditions Min. Flash tested for 1 second 1000 Guangzhou Tycem Electronics Limited Type Max. Units VDC Page 2 of 3 ISOLATED UNREGULATED DUAL OUTPUT DC/DC CONVERTER BxxxxLS-1W SERIES Resistance Viso= 1000VDC 10 1. Calculated using MIL-HDBK-217F with nominal input voltage at full load. 2. See derating graph 3. Supply voltage must be discontinued at the end of the short circuit duration. O u tp u t P o w e r (W ) All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. 5V & 12V Input 24V & 48V Input 1.5 70° c 85° c 1 0.5 0 -40° c 0° c 50° c 100° c 150° c A m b ie n t T e m p e ra tu re ( C ) PA CKAGE SPECIFICATIONS PACKAGE Guangzhou Tycem Electronics Limited Web:www.tycem.com 220 7/81696730 Tel:+ 86 20 8163 8163220 2207/81696730 WWW.TYCEM.COM Email:[email protected] Fax:+ 86 20 81576282 Guangzhou Tycem Electronics Limited Page 3 of 3 GΩ