BP5722A12 insulation t ype a c-dc con v er ter a c 220v input, 12 v/1000 ma output absolute maximum ratings electrical characteristics sample application circuit parameter symbol limits unit conditions pin 11 input voltage vd parameter symbol pin 11 input voltage vd min. ? ty p. ? max. 700 unit v conditions note 2:io=1000ma operating power voltage(pin 7) vdd 8.8 12 20 v dc, io=1000ma *1 *2 line regulation ? vr ? 8 200 mv vi=217v to 405vdc io=1000ma power conversion efficiency 75 83 ? % 800 v pin 7,9 input voltage vdd 25 v pin 11 input current id 350 ma pin 8 input current idd 10 ma output power po 13 w withstand voltage vi 2.5 kv 1 sec (between primary and secondary) ambient temperature + module self-heating tcmax maximum allowable surface temperature tcmax 105 c operating temperature range topr ? 25 to +80 c storage temperature range tstg ? 40 to +105 c rated output voltage vo 11.4 12.0 12.6 v rated output current io 0 ? 1000 ma see derating curve load regulation ? vi ? 30 200 mv io=50ma to 1000ma output ripple voltage ? ? 200 500 mvpp *1: the operation starting voltage is between 15.5 and 17.5 v. *2: pulsating noise is not included. pin no. terminal name 1vo terminal function secondary 12v output voltage control terminal. insert a 1000 f output smoothing capacitor before the gnd for use. 11 vd drain terminal for the buiit-in fet. 8vs start-up terminal. connect to vi (+) through an external resistor (1.5m ? ). 2gnd secondary 12v output gnd terminal. 6 vin(-) primary input negative terminal. 7 vdd internal circuit power terminal. 9nc nc pin. verify proper operation under actual conditions before use. in particular, confirm that the load current does not exceed the maximum rating. external component settings c1: output capacitor 1000 f/35v low-impedance capacitor for power supply c2: noise reduction capacitor 4700pf/400v c3: v dd capacitor 10 f/50v low-impedance capacitor for power supply c4: input capacitor 33 f/450v c5: noise reduction capacitor (optional) c6: output capacitor 100 f/35v low-impedance c7: noise reduction capacitor (optional) d1: rectifier diode 90v/6a d2: rectifier diode 1kv/1a d3: rectifier diode 90v/0.13a d5: rectifier diode 100v/1a d7: diode bridge 800v/1a r1: resistor 1 100k ? 5%, 3w, 300vdc or higher ruted voltage r2: resistor 2 1.53m ? 5%, 0.25w, 300vdc or higher ruted voltage. r5: noise reduction resistor (optional) t1: switching transformer f1: fuse use a fuse for safety znr: varistor a varistor is required in order to protect against lightning surges and static electricity. operation notes an excessively large capacitance at c1 may cause the output to become inactive. therefore, a capacitance between 1000 and 2200 f is recommended, with a rise time of 10ms or less. the capacitance of c3 should be 10 f, since an excessively small value will result in malfunction. the activation time is defined as: t(sec)=r2 c3 ln[1-17/(vi-30 a r2)], where vi is the dc voltage after smoothing. the resistance of r2 should be 1.5m ? , since an excessively small value will result in malfunction. overcurrent (reset type) and overvoltage (latch type) protection circuits are built in, preventing damage from occurring d ue to unexpected conditions. the overvoltage protection circuit shuts down operation once v dd exceeds 20v. in order to reset the input capacitor c4 must be discharged and the power turned back on. dimensions (mm) derating curve switching frequency operation range ambient temperature ta( c ) output power (w) 6 12 -30-20-100 102030405060708090 conversion efficiency load regulation vo2:18v/100ma vo1:12v/850ma ac100v vi(+) vi(-) gnd1 gnd2 t1 c5 c2 d2 d3 + c3 + c1 d1 d5 + c6 f1 c7 + c4 d7 r1 r5 r2 use a fuse for safety 1 3 4 5 9 1 6 7 znr 1 2 11 7 8 6 BP5722A12 12 67 32.5 max. 21.5 max. 4.0 1.0 3.3 max. 1.3 0.2 9.3 max. mark side 5.6 max. 3.7 max. 2.54 x 10 = 25.4 p = 2.54 0.2 0.5 0.1 0.25 0.05 89 11 output current (ma) switching frequency fsw(khz) 100 80 60 40 20 0 0 200 400 600 800 1000 output current of vo12(ma) conversion efficiency (%) 0 0 10 20 30 40 50 60 70 80 90 100 500 1000 output current(ma) output voltage vo(v) 0 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 1000 1800
appendix appendix1-rev1.1 the products listed in this document are designed to be used with ordinary electronic equipment or devices (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 with 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. 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. about export control order in japan products described herein are the objects of controlled goods in annex 1 (item 16) of export trade control order in japan. in case of export from japan, please confirm if it applies to "objective" criteria or an "informed" (by miti clause) on the basis of "catch all controls for non-proliferation of weapons of mass destruction.
|
