3-1 [external form dimensions] pin no.1,10 are leads bending formed. unit mm notes dc-dc converter part no. part nam e EHDRD3338 item contents color black panasonic electronic devices co.,ltd. material of resin phenol denatured epoxy resin (flame class: ul94v-0) materials of leadpins 0.5 fe lead with cu,sn and sn-bi plating external appearance without noticeable flaw and stain marking silver white and clear bottom edge of substrate must be molded terminal no.2,4,6,8,9 are removed. dimensions which have no tolerance show the typical values. forming of leads (1pin,10pin) p=2.54 terminal no. side of marking lot no. 3.50.7 1 3 5 7 0.5 10 30.5max. (28.2typ.) 18.9max. (17.9typ.) 10.0max. (7.2typ.) rd3338 made in japan 3p 2p 2p 2p 2.0 1.8
3-2 [absolute maximum ratings] [electric characteristics] ambient temperature 25 degc vin=141vdc iout=50ma vin=113 to 170vdc (note1) vin=113 to 170vdc iout=50ma vin=141vdc iout=0 to 50ma vin=141vdc iout=50ma (note2) vin=141vdc iout=80ma note1 please refer to the derating curve for maximum output current. note2 the output ripple doesn't include the spike noise. note3 : avoid dew condensation always. [test circuit] vin 2 output voltage input voltage range 1 113 141 170 vdc 80 ma 14.00 vdc vout 15.00 16.00 vr 3 output current iout 4 line regulation 3 item no. 0.05 0.20 vdc 5 load regulation vl 0.05 0.20 vdc 6 output ripple voltage vp 0.05 0.20 vp-p 7 efficiency 60 73 % specification max. unit min. typ. symbol degc strage temperature tstg -25 to +85 condition/notes refer to derating curve. operational temperature avoid dew condensation (note3) vdc 2 topr -20 to +70 degc 1 vin 170 power suppl y item symbol rating unit remarks EHDRD3338 part nam e dc-dc converter part no. panasonic electronic devices co.,ltd. no. we recommend low impedance aluminium capacitor for power supply. load EHDRD3338 out gnd + 100 f /35v + 33 f /200v vin 1 3 5 7 10 vout iout in nc nc
3-3 [application] note for safety, please use fuse. [derating curve] vin=113v to 170vdc [circuit diagram] panasonic electronic devices co.,ltd. EHDRD3338 part nam e dc-dc converter part no. we recommend low impedance aluminium capacitor for power supply. derating curve 0 20 40 60 80 100 -25 0 25 50 75 100 ambient temperature [ ] output current [ ] a c100v 20% (50/60hz) EHDRD3338 in out gnd + 100 f /35v 5 7 10 vou t iout nc + 33 f /200v 1 + - nc 3 fuse 0.1 f /50v c2 load control circuit 1 out in 5 gnd 10 3 7 nc nc improvement circuit of efficiency over-current detector
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