unisonic technologies co., ltd l8115 linear integrated circuit www.unisonic.com.tw 1 of 6 copyright ? 2009 unisonic technologies co., ltd qw-r123-013,c fet bias controller with polarization switch and tone detection ? description the utc l8115 is designed to bias the mosfets that are commonly used in lnbs that can implies minimum external components requires. ? features * can bias up to 3 fets * hb and lb switch for lnbs. * drain current adjustable by external resistors. * band switching by 22khz tone detection. lead-free: l8115l halogen-free: l8115g ? ordering information ordering number normal lead free plating halogen free package packing L8115-R16-R l8115l-r16-r l8115g-r16-r ssop-16 tape reel l8115-r20-r l8115l-r20-r l8115g-r20-r ssop-20 tape reel
l8115 linear integrated circuit unisonic technologies co., ltd 2 of 6 www.unisonic.com.tw qw-r123-013,c ? pin configuration
l8115 linear integrated circuit unisonic technologies co., ltd 3 of 6 www.unisonic.com.tw qw-r123-013,c ? absolute maximum ratings parameter symbol ratings unit supply voltage v cc -0.6 ~ +12 v input voltage v in 25 continuous v supply current i cc 100 ma drain current (per fet)(set by rcal) i d 0 ~ 15 ma power dissipation(ta=25 ) p d 500 mw operating temperature t opr -40~+80 storage temperature t stg -50~+85 note: absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? electrical characteristics (ta=25 , v cc =5v, i d =10ma, r cal =33k ? , unless otherwise specified.) parameter symbol test conditions min. typ. max. unit supply voltage v cc 5 10 v i d1 = i d2 (or i d12 )=i d3 =0 8.5 15 ma i d1 =0,i d2 (or i d12 )= i d3 =10ma, v pol =14v 28 35 ma i d2 =0,i d1 (or i d12 )= i d3 =10ma, v pol =15.5v 28 35 ma i d1 and i d3 =0, i lb =10ma 18 25 ma supply current i cc i d1 and i d3 =0, i hb =10ma 18 25 ma i sub =0 -3.05 -2.8 -2.55 v substrate voltage v sub (internally generated) i sub =-200 a -2.4 v gate voltage e ng 0.005 vpkpk output noise drain voltage e nd c g =4.7nf,c d =10nf 0.02 vpkpk oscillator frequency f osc 180 330 800 khz ? gate characteristics parameter symbol test conditions min. typ. max. unit output current range i go -30 2000 a off v g1o i d1 =0ma, v pol =14v, i go1 =-10 a -2.5 -2.25 -2 v low v g1l i d1 =12ma, v pol =15.5v, i go1 =-10 a -2.5 -2.25 -2 v output voltage gate 1 high v g1h i d1 =8ma, v pol =15.5v, i go1 =0 a 0.4 0.75 1 v off v g2o i d2 =0ma, v pol =15.5v, i go2 =-10 a -2.5 -2.25 -2 v low v g2l i d2 =12ma, v pol =14v, i go2 =-10 a -2.5 -2.25 -2 v output voltage gate 2 high v g2h i d2 =8ma, v pol =14v, i go2 =0 a 0.4 0.75 1 v low v g3l i d3 =12ma, i go3 =-10 a -3 -2.75 -2 v output voltage gate 3 high v g3h i d3 =8ma, i go3 =0 a 0.4 0.75 1 v ? drain characteristics parameter symbol test conditions min. typ. max. unit current i d 8 10 12 ma current range i drng set by r cal 0 15 ma with v cc i dv v cc =5 ~ 10v 0.5 %/v current change with t j i dt t j =-40 ~ +70 0.05 %/ drain 1 voltage: high v d1 i d1 =10ma,v pol =15.5v 2 2.2 2.4 v drain 2 voltage: high v d2 i d2 =10ma,v pol =14v 2 2.2 2.4 v drain 3 voltage: high v d3 i d3 =10ma,v pol =15.5v 2 2.2 2.4 v with v cc v dv v cc =5 ~ 10v 0.5 %/v voltage change with t j v dt t j =-40 ~ +70 50 ppm drain 1 i leak1 v d1 =0.5v,v pol =14v 10 a leakage current (ssop-20 only) drain 2 i leak2 v d2 =0.5v,v pol =15.5v 10 a
l8115 linear integrated circuit unisonic technologies co., ltd 4 of 6 www.unisonic.com.tw qw-r123-013,c ? tone detection characteristics parameter symbol test conditions min typ max unit filter amplifier bias voltage v out i fin =0 1.75 1.95 2.15 v input impedance f inz v fin =100mv p/p 150 ? amplifier gain a g v fin =100mv p/p 30 v/ma v threshold f vt 100 170 350 mvp/p output stage lov bias current i lov v lov =0v 0.02 0.15 1 a lov volt range v lov i l =50ma(lb or hb) -0.5 v cc -1.8 v v lov =0v, i l =0ma, r ib-csub =1m ? enabled -3.05 -2.8 -2.55 v lb output low v lbl v lov =3v, i l =0ma, r ib-gnd =1m ? enabled -0.01 0 0.1 v v lov =0v, i l =10ma disabled -0.025 0 0.025 v lb output high v lbh v lov =3v, i l =50ma disabled 2.9 3 3.1 v lov =0v, i l =0ma, r hb-csub =1m ? disabled -3.05 -2.80 -2.55 v hb output low v hbl v lov =3v, i l =0ma, r hb-gnd =1m ? disabled -0.01 0 0.1 v v lov =0v, i l =10ma enabled -0.025 0 0.025 v hb output high v hbh v lov =3v, i l =50ma enabled 2.9 3 3.1 note: noise voltage measurement would be ignored in production. ? polarity switch characteristics parameter symbol test conditions min typ max unit input current i pol v pol =25v (applied via r pol =2k ? ) 10 25 40 a threshold voltage v tpol v pol =25v (applied via r pol =2k ? ) 14 14.75 15.5 v switching speed t spol v pol =25v (applied via r pol =2k ? ) 100 ms
l8115 linear integrated circuit unisonic technologies co., ltd 5 of 6 www.unisonic.com.tw qw-r123-013,c ? typcial characteristics rcal (k) 100 0 40 60 80 20 jfet drain current vs. rcal 0 16 8 10 12 14 4 6 2 vcc =5v 12 6810 4 jfet drain voltage vs. drain current 2 16 2.3 2.4 14 2.2 5v 8v 10v drain current (ma) 2.1 load current (ma) lb/hb dropout voltage vs. load current load current (ma) 4 01020 30 40 50 0 2 -2 -4 -6 -8 v cc =5v, v lov =0v ta=70 ta=25 ta=-40 2.0 01020 30 40 50 1.8 1.9 1.7 1.6 1.5 1.4 1.2 1.3 vcc=5v ta=70 ta=25 ta=-40 lb/hb offset voltage vs. load current external v sub load (ma) 1.0 0.4 0.6 0.8 0.2 v sub vs. external load 0 -2.0 -1.5 -2.5 5v 10v -1.0 -3.0
l8115 linear integrated circuit unisonic technologies co., ltd 6 of 6 www.unisonic.com.tw qw-r123-013,c utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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