BP5029 the BP5029 is a dc / dc converter module that uses a self-oscillation system. it contains switching devices, rectifiers and coils. the module is available in stand-alone 6-pin sip packages with no heat sink required. applications household appliances, oa equipment and industrial equipment features 1) compact and light. 2) built-in over current protection circuit. 3) small number of external components required. absolute maximum ratings (ta=25 c) dc / dc con v er ter recommended operating conditions (ta=25 c) parameter symbol limits unit power supply voltage operating temperature storage temperature v in topr tstg 20 ? 10 ~ + 80 ? 25 ~ + 105 v c c parameter symbol min. typ. max. unit input voltage 8 ? 16 v in v electrical characteristics (ta=25 c) parameter symbol min. typ. max. unit conditions input voltage output voltage output current line regulation load regulation output ripple voltage power conversion efficiency v in v o i o vl vr vp 8 4.7 0 ? ? ? 77 ? 5.0 ? 0.03 0.07 0.06 82 16 5.3 300 0.10 0.15 0.15 ? v v ma v v v pp % v in =12v, i o =100ma v in =12v v in =8 ~ 15v, i o =300ma v in =12v, i o =0 ~ 300ma v in =12v, i o =300ma v in =12v, i o =300ma ? 1 maximum output current varies depending on ambient temperature : please refer to derating curve. ? 2 spike noise is not included in output ripple voltage. ? 1 ? 2 1/4
BP5029 pin descriptions measurement circuit operation notes (1) the output current needs to be reduced as the ambient temperature rises.(please refer to the derating curve.) (2) lead pins should be securely connected. if lead pins are not securely connected, irregular voltages could be produced, causing breakdowns and damage. (3) please i/o external capacitors as near as possible to the connection pins. output ripple voltage might be larger. (4) be minded to use external parts within the specified range. in case that the parts with other than the specified range, it will not only result in dissatisfactory fulfillment of the specifications but may also cause the failures. (5) watch out for chattering when the power is turned on. if chattering when the power is turned on, do not use exceeding the maximum input voltage. (6) in the case of loads such as motors or relays, take measures so that over voltage is not applied to the module input / output terminals due to counter-electromotive force when turning power on / off, and current does not exceed absolute maximum rating. (7) make sure that the absolute maximum rated value is not exceeded when locking, reversely rotating, or starting the motor. (8) condensation when the insulation between the terminals is deteriorated due to condensation, normal activation may sometime be hindered. please be careful with the condensation especially between the external coils, and between the input terminals. (9) operating temperature be sure to use within the derating curve. particularly, in case that this product is used in the closed vessel, be sure to measure the temperature, and make sure that it is within the derating curve. (10) do not attempt to apply static electricity at the time of installation or storage. it may cause breakage. (11) the over output voltage should not be applied to the output terminal. (12) since there may be a case that the output voltage cannot be increased if the reverse voltage is applied to the output terminal, make sure that the reverse voltage should not be applied when supplying the power source. (13) in case that vibration is significant, be minded to use this product after fixing it. pin name function 1 2v in1 4 gnd (internally connected with pin 2.) (internally connected with pin 1.) (internally connected with pin 5.) (internally connected with pin 4.) 5 v in2 gnd pin no. 6v out pin 3 is removed. BP5029 12 456 c1 100 f c2 100 f v in fig.1 + + + use a low-impedance product for switching power supplies for the i/o capacitor. 2/4 be sure to use fuse for safety
BP5029 external dimensions (units : mm) electrical characteristic curves (units : mm) 0.05 0.1 0.2 0.3 0.15 0.25 0.35 0 -20 output current : i o (a) ambient temperature : ta ( c ) fig.2 derating carve 80 100 60 40 20 0 100 90 80 70 60 50 40 30 20 10 efficiency : (%) output current : i o (a) fig.3 conversion efficiency 0.3 0 0 0.1 0.2 v in =12.0v 5.30 output voltage : v o (v) output current : i o (a) fig.4 output characteristic 0.3 4.70 4.80 4.90 5.00 5.10 5.20 0 0.1 0.2 v in =8.0v v in =12.0v v in =16.0v 6 5 4 12 18.3max. 11.5max. 6.75max. 4.75max. 19.3max. 4.0 1.0 2.54 5=12.7 2.54 0.2 1.3 0.2 0.5 0.5 0.25 0.05 3.25max. sip6 5.30 output voltage : v o (v) input voltage : v in (v) fig.5 line regulation 16.0 4.70 4.80 4.90 5.00 5.10 5.20 8.0 12.0 10.0 14.0 i o =300ma i o =100ma i o =0ma marked side 3/4
precautions on use of rohm power module 1) the products are designed and produced for application in ordinary electronic equipment (av equipment, oa equipment, telecommunication equipment, home appliances, amusement equipment etc.). if the products are to be used in devices requiring extremely high reliability (medical equipment, transport equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car accessories, safety devices, etc.) and whose malfunction or operational error may endanger human life and sufficient fail-safe measures, please consult with the company's sales staff in advance. if product malfunctions may result in serious damage, including that to human life, sufficient fail-safe measures must be taken, including the following: [a] installation of protection circuits or other protective devices to improve system safety [b] installation of redundant circuits in the case of single-circuit failure 2) the products are designed for use in a standard environment and not in any special environments. application of the products in a special environment can deteriorate product performance. accordingly, verification and confirmation of product performance, prior to use, is recommended if used under the following conditions: [a] use in various types of liquid, including water, oils, chemicals, and organic solvents [b] use outdoors where the products are exposed to direct sunlight, or in dusty places [c] use in places where the products are exposed to sea winds or corrosive gases, including cl2, h2s, nh3, so2, and no2 [d] use in places where the products are exposed to static electricity or electromagnetic waves [e] use in proximity to heat-producing components, plastic cords, or othe flammable items [f] use involving sealing or coating the products with resin or other coating materials [g] use involving unclean solder or use of water or water-soluble cleaning agents for cleaning after soldering [h] use of the products in places subject to dew condensation 3) the products are not radiation resistant. 4) the company is not responsible for any problems resulting from use of the products under conditions not recommended herein. 5) the company should be notified of any product safety issues. moreover, product safety issues should be periodically monitored by the customer. safety precautions 1) if change is made to the constant of an external circuit, allow a sufficient margin due to variations of the characteristics of the products and external components, including transient characteristics, as well as static characteristics. please be informed that the company has not conducted investigations on whether or not particular changes in the application examples or external circuits would result in the infringement of patent rights of a third party. 2) the application examples, their constants, and other types of information contained herein are applicable only when the products are used in accordance with standard methods. therefore, if mass production is intended, sufficient consideration to external conditions must be made. precautions regarding application example and external circuits 1) these specifications contain information related to the company?s industrial property. any use of them other than pertaining to the usage of appropriate products is not permitted. duplication of these specifications and its disclosure to a third party without the company?s permission is prohibited. 2) information and data on products, including application examples, contained in these specifications are simply for reference; the company does not guarantee any industrial property rights, intellectual property rights, or any other rights of a third party regarding this information or data. accordingly, the company does not bear any responsibility for: [a] infringement of the intellectual property rights of a third party [b] any problems incurred by the use of the products listed herein. 3) the company prohibits the purchaser of its products to exercise or use the intellectual property rights, industrial property rights, or any other rights that either belong to or are controlled by the company, other than the right to use, sell, or dispose of the products. prohibitions regarding industrial property 4/4
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