unisonic technologies co., ltd l8001 preliminary cmos ic www.unisonic.com.tw 1 of 5 copyright ? 2015 unisonic technologies co., ltd qw-r502-938.b fet bias controller ? description the utc l8001 is specially designed integrated circuit for satellite receiver front-end block. it provides stable drain and gate bias conditions for gaas or hemt fets. the utc l8001 , provide six fets bias control respectively. by adjusting two external resistor s, it can change the fet?s bias current to optimize the sate llite receiver front end block performances. it generates the required negative voltage to bias the gate of gaas fet, and internally provides protection circuit that can protect the fet devices during su pply voltage transient. so it is very popular in satellite receiver front end block. ? features * built in fet device protection circuit * adjustable fet device operating current * stable bias control for gaas and hemt fets * drive up to six fets * wide supply voltage range ? ordering information ordering number package packing L8001G-R20-R ssop-20 tape reel L8001G-R20-R (1)packing type (2)package type (3)green package (1) r: tape reel (2) ssop-20 (3) g: halogen free and lead free ? marking
l8001 preliminary cmos ic unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r502-938.b ? pin configuration 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 vd1 vg1 vd2 vg2 vd3 vg3 gnd nc cnb1 cnb2 csub rcal1 rcal2 vg6 vd6 vg5 vd5 vg4 vd4 v cc ? pin description pin no. pin name description 1 vd1 1 st drain output voltage 2 vg1 1 st gate output voltage 3 vd2 2 nd drain output voltage 4 vg2 2 nd gate output voltage 5 vg3 3 rd gate output voltage 6 vd3 3 rd drain output voltage 7 gnd ground 8 nc no connect 9 cnb1 osc output 10 cnb2 rectifier input 11 csub negative voltage output 12 rcal1 vd1/vd2/vd3 current set resistor connect 13 rcal2 vd4/vd5/vd6 current set resistor connect 14 vg6 6 th gate output voltage 15 vd6 6 th drain output voltage 16 vg5 5 th gate output voltage 17 vd5 5 th drain output voltage 18 vg4 4 th gate output voltage 19 vd4 4 th drain output voltage 20 v cc supply voltage
l8001 preliminary cmos ic unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r502-938.b ? block diagram
l8001 preliminary cmos ic unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r502-938.b ? absolute maximum rating parameter symbol ratings unit supply voltage v cc -0.6~8 v supply current i cc 100 ma maximum drain current 15 ma maximum c sub sink current -500 ua operating temperature t opr -40~80 c storage temperature t stg -50~150 c 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 (v cc =3.3v, i d =10ma, r cal1 =8.2k ? , r cal2 =8.2k ? , t a =25c, unless otherwise stated) parameter symbol test conditions min typ max unit supply voltage v cc 3.3 6 v supply current i cc no fet 10 ma negative voltage v sub i sub =0ua, v cc =6v -3.0 -2.5 -1 v i sub =-200ua -1 v oscillator freq. f o 200 350 800 khz drain current i d 8 10 12 ma drain current change with v cc ? i dv v cc =3.3~6v 0.2 %/v vd1/vd2(vd3/vd4) drain offset current ? i dc 0.2 ma drain current change with temp. ? i dt t=-40~80c 0.1 %/c drain voltage v d i d =10ma 1.8 2 2.2 v drain voltage change with v cc ? v dv v cc =3.3~6v 0.5 %/v drain voltage change ? v dt t=-40~80c 50 ppm dynamic gate voltage range v g csub without loading -2.5 0.7 v drain output noise voltage v dn with drain bypass capacitor=10nf 0.05 v pp gate output noise voltage v gn with gate bypass capacitor=10nf 0.03 v pp
l8001 preliminary cmos ic unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r502-938.b ? typical application circuit 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.
|
