BP5843A high-po w er led dr iv ers f or llumination absolute maximum ratings electrical characteristics application circuit a c100v input, constant current input voltage output voltage withstand voltage maximum surface temperature operating temperature range storage temperature range parameter symbol limits unit vi vo bv tcmax topr tstg 170 12 1.8 105 ? 20 to +80 ? 25 to +85 v vpk kv c c c dc 1s (between primary and secondary) ambient temperature + module self-heating tcmax refer to derating curve unit conditions v ma v vp-p % vi=141v, r1=0.82 ? (1%) vi=141v, lo=350ma vi=141v, lo=350ma vi=141v, vo=12v, lo=350ma input voltage range output current output voltage range output ripple voltage power conversion efficiency parameter symbol typ. max. min. vi io vo vp 141 350 ? ? 85 170 369 12 0.5 ? 113 332 2.5 ? 80 ? 1 maximum output current varies depending on ambient temperature ; please refer to derating curve. ? 2 spike noise is not included in output ripple voltage. BP5843A pin no. 1 2 3 4 5 6 7 8 9 10 11 function input terminal (+) skip input terminal ( ? ) nc nc skip skip skip output capacitor connection terminal led connection terminal (cathode) led connection terminal (anode) external components setting 10 f/250v c1 : input capacitor 40 f/25v ceramics capacitor c2 : output capacitor 2200pf (basic insulation) c5 : noise removal capacitor 0.82 ? 1 % 1/4w (lo=350ma) r1 : output current setting resistor 800v/1a d1: diode bridge please use the capacitor, if necessary. capacitance : 0.1 f to 0.22 f rated voltage : 250v or higher c3, c4: noise removal capacitor f1: fuse fuse must be used for safety 10mh lf1: line filter znr1: varistor varistor must be used. it protects this part from lighting surge and static electricity. 24.0max. 4.0 1.0 32.6max. 15.8max. 2.54x10=25.4 typ. marking side 1345 9 10 11 0.75 0.1 1.3 0.2 p=2.54 0.2 3.55max marking side 0.5 0.05 11.05max. 4.75max. dimensions (unit : mm ) derating curve derating curve operation range 5 4 3 2 1 0 010 -30 -20 -10 20 40 30 80 70 60 50 90 ambient temperature ta( c ) output power (w) output characteristics output characteristics operation range r1= r1=0.91 ? 0.40 0.35 0.00 0.05 0.10 0.15 0.20 0.25 0.30 02 6 412 810 16 14 output voltage( v ) output current (a) be sure to use fuse for safety c2 d1 + c1 lf1 c3 c4 c5 znr1 f1 r1 BP5843A 1 3 9 10 11 how to calculate r1 r1=0.13741/(0.91 x lo-0.151) lo : output current setting current output current-setting resistor 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.26 0.24 0.28 0.30 0.34 0.32 0.36 output current : (a) setting resistor : r1( ? )
notes no technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of rohm co.,ltd. the contents described herein are subject to change without notice. the specifications for the product described in this document are for reference only. upon actual use, therefore, please request that specifications to be separately delivered. application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. rohm co.,ltd. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by rohm co., ltd. is granted to any such buyer. products listed in this document are no antiradiation design. appendix1-rev2.0 thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact your nearest sales office. rohm customer support system the americas / europe / asia / japan contact us : webmaster@ rohm.co. jp www.rohm.com copyright ? 2008 rohm co.,ltd. the products listed in this document are designed to be used with ordinary electronic equipment or de vices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of which would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. it is our top priority to supply products with the utmost quality and reliability. however, there is always a chance of failure due to unexpected factors. therefore, please take into account the derating characteristics and allow for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in order to prevent possible accidents that may result in bodily harm or fire caused by component failure. rohm cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the notes specified in this catalog. 21 saiin mizosaki- cho, ukyo-ku, kyoto 615-8585, japan tel : +81-75-311-2121 fax : +81-75-315-0172 appendix
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