ISOLATED UNREGULATED DUAL OUTPUT DC/DC CONVERTER BxxxxS-1W SERIES DESCRIPTION The BxxxxS-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 temperatu re range guarantees startup from –40°C and full 1 watt output at 85°C. For lower ripple, refer to output ripple reduction section. FEATURES � RoHS compliant � 5V, 12V, 24V & 48V input � Single isolated output � 5V, 9V, 12V and 15V output � 1kVDC isolation � No heatsink required � Efficiency up to 80% � 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 � Power density 1.53W/cm3 � MTTF up to 2.4 million hours � UL 94V-0 package material � Custom solutions available � PCB mounting 2 � Footprint from 0.69cm � Industry standard pinout SELECTION GUIDE Input Output Output Input Current Voltage Voltage Current (Rated Load) (V) (V) (mA) (mA) % pF kHrs B0505S-1W 5 5 200 289 70 48 290 B0509S-1W 5 9 111 260 77 37 1173 B0512S-1W 5 12 83 256 78 33 633 B0515S-1W 5 15 66 250 80 40 360 B0524S-1W 5 24 42 248 80 48 290 B1205S-1W 12 5 200 120 69 33 620 B1209S-1W 12 9 111 115 74 48 488 B1212S-1W 12 12 83 110 76 55 360 B1215S-1W 12 15 66 115 72 48 488 B2405S-1W 24 5 200 60 70 40 201 B2409S-1W 24 9 111 56 75 59 185 B2412S-1W 24 12 83 52 80 78 163 B2415S-1W 24 15 66 52 80 79 136 B4805S-1W 48 5 200 30 70 32 213 B4809S-1W 48 9 111 28 75 50 194 B4812S-1W 48 12 83 26 80 76 164 B4815S-1W 48 15 66 26 80 75 140 Order Code WWW.TYCEM.COM Efficiency Isolation Capacitance Copyright Guangzhou Tycem Electronics Limited MTTF1 Package Style SIP Page 1 of 4 ISOLATED UNREGULATED DUAL OUTPUT DC/DC CONVERTER BxxxxS-1W SERIES 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. 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 Continuous operation, 48V input types 43.2 48 52.8 Units V OUTPUT CHARACTERISTICS Parameter Rated Power 2 Conditions 5V & 12V input types TA=-40°C to 85°C 24V & 12V input types TA=-40°C to 85°C Voltage Set Point Accuracy See tolerance envelope Line regulation High VIN to low VIN Min. Typ. 1 Max. Units 1 W 1.2 %/% 10% load to rated load, 5V output types 15 10% load to rated load, other output types 10 Load Regulation Ripple and % 5V & 12V Input Noise 24V & 48V 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, A05 types 7V Input voltage VIN, A12 types 15V Input voltage VIN, A24 types 28V Input voltage VIN, A48 types 54V ISOLATION CHARACTERISTICS Parameter Conditions Min. Isolation test voltage Flash tested for 1 second 1000 Resistance Viso= 1000VDC Type Max. Units VDC 10 GΩ TEMPERATURE CHARACTERISTICS Parameter Specification WWW.TYCEM.COM Conditions 5V & 12V input types Min. Type -40 Copyright Guangzhou Tycem Electronics Limited Max. Units 85 °C Page 2 of 4 ISOLATED UNREGULATED DUAL OUTPUT DC/DC CONVERTER BxxxxS-1W SERIES 24V & 48V input types Storage All Case Temperature above ambient Cooling 0 70 -50 150 5V output types 41 All other output types 32 Free air convection GENERAL CHARACTERISTICS Parameter Conditions Switching frequency All input types 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. Min. Type 100 Max. Units kHz 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 ) WWW.TYCEM.COM PACKAGE SPECIFICATIONS Copyright Guangzhou Tycem Electronics Limited Page 3 of 4 ISOLATED UNREGULATED DUAL OUTPUT DC/DC CONVERTER BxxxxS-1W SERIES Guangzhou Tycem Electronics Limited Web:www.tycem.com 220 7/81696730 Tel:+ 86 20 8163 8163220 2207/81696730 com Email:support@Tycem. Email:[email protected] Fax:+ 86 20 81576282 All dimensions in inches ±0.01. All pins on a 0.1 pitch and within 0.01 of true position. All dimensions in inches ±0.01. All pins on a 0.1 pitch and within 0.01 of true position. WWW.TYCEM.COM Copyright Guangzhou Tycem Electronics Limited Page 4 of 4