this is information on a product in full production. april 2014 docid022224 rev 3 1/9 LET16045C rf power transistor from the ldmost family of n-channel enhancement-mode lateral mosfets datasheet - production data figure 1. pin out features ? excellent thermal stability ? common source configuration ? p out (@28 v) = 45 w with 16 db gain @ 1600 mhz ? beo free package ? in compliance with the 2002/95/ec european directive description the LET16045C is a common source n-channel enhancement-mode lateral field-effect rf power transistor designed for broadband commercial and industrial applications at frequencies up to 1.6 ghz. the LET16045C is designed for high gain and broadband performance operating in common source mode at 28 v. it is ideal for inmarsat satellite communications. m243 epoxy sealed 1 3 2 1. drain 2. gate 3. source table 1. device summary order code package branding LET16045C m243 LET16045C www.st.com
maximum ratings LET16045C 2/9 docid022224 rev 3 1 maximum ratings table 2. absolute maximum ratings (t case = 25 c) symbol parameter value unit v (br)dss drain-source voltage 80 v v gs gate-source voltage -0.5 to +15 v i d drain current 9 a p diss power dissipation (@ t c = 70 c) 100 w t j max. operating junction temperature 200 c t stg storage temperature -65 to +150 c table 3. thermal data symbol parameter value unit r th(jc) junction-case thermal resistance 1.3 c/w
docid022224 rev 3 3/9 LET16045C electrical characteristics 9 2 electrical characteristics t c = 25 c table 4. static symbol test conditions min. typ. max. unit v (br)dss v gs = 0 v; i ds = 10 ma 80 v i dss v gs = 0 v; v ds = 28 v 1 a i gss v gs = 20 v; v ds = 0 v 1 a v gs(q) v ds = 28 v; i d = 300 ma 2.0 5.0 v v ds(on) v gs = 10 v; i d = 3 a 1.1 v g fs v ds = 10 v; i d = 3 a 2.5 mho c iss v gs = 0 v; v ds = 28 v; f = 1 mhz 58 pf c oss v gs = 0 v; v ds = 28 v; f = 1 mhz 29 pf c rss v gs = 0 v; v ds = 28 v; f = 1 mhz 0.8 pf table 5. dynamic symbol test conditions min. typ. max. unit p out v dd = 28 v; i dq = 400 ma; p in = 2 w 45 54 - w g ps v dd = 28 v; i dq = 400 ma; p out = 45 w 15 16 db h d v dd = 28 v; i dq = 400 ma; p out = 45 w 50 55 % load mismatch v dd = 28 v; i dq = 400 ma; p out = 50 w; f = 1600 mhz all phase angles 20:1 vswr table 6. impedance data frequency (mhz) z source ( ) z load ( ) 1600 1.1 - j1.6 1.1 - j0.6
typical performances LET16045C 4/9 docid022224 rev 3 3 typical performances figure 2. gain and efficiency vs output power figure 3. gain vs ouptut power and bias current figure 4. ouptut power vs drain supply voltage 0 10 20 30 40 50 60 70 80 8 10 12 14 16 18 20 22 24 0 102030405060 e?ciency (%) gain (db) output power (w) gain e?ciency freq = 1600 mhz v dd = 28v i dq = 400 ma am02167v2 8 10 12 14 16 18 20 22 24 0 10203040506070 gain (db) output power (w) idq = 100ma idq = 400 ma idq = 600 ma freq = 1600 mhz v dd = 28v am10213v1 25 30 35 40 45 50 55 60 65 70 75 22 24 26 28 30 32 34 output power (w) supply voltage (v) pin = 2w pin = 1.5w pin = 2.5w am10214v1 freq = 1600 mhz i dq = 400 ma
docid022224 rev 3 5/9 LET16045C board layout, schematic and bom 9 4 board layout, schematic and bom figure 5. board layout figure 6. schematic gipg290420140950fsr c stmicroelectronics, inc. let16045 log xxxx rev input output rev log xxxx let16045 stmicroelectronics, inc. c + + + + c13 c2 c6 c7 c11 c10 r1 r2 r3 b1 b2 c12 b4 b3 c9 c4 c8 l1 l2 c3 c5 c1 + gipg290420140944fsr tl9 tl4 fb1 vgg tl3 c13 r1 r2 c12 tl5 tl6 dut tl7 tl8 c10 tl10 fb4 c11 r3 fb2 tl1 c1 tl2 c3 c2 c9 c4 c5 c6 tl11 c7 tl12 vdd c8 l2 l1 fb3
board layout, schematic and bom LET16045C 6/9 docid022224 rev 3 table 7. component list item qty part number vendor description r1 1 cr1206-8w-561jb venkel 560 ohm, 1/8w surface mount chip resistor r2 1 cr1206-8w-132jb venkel 1.3k ohm, 1/8w surface mount chip resistor r3 1 cr1206-8w-100jb venkel 10 ohm, 1/8w surface mount chip resistor fb1,2,3,4, 4 2743021447 fair-rite corp surface mount emi sheild bead c1,c4,c5,c6 4 johanson 0.6-4.5pf giga trim variable capacitor c2,c7,c9,c12 4 atc100b470xxxx atc 47 pf chip capacitor c3 1 27291pc johanson 0.8-8pf giga trim variable capacitor c8 1 atc100b330xxxx atc 33pf chip capacitor c10 1 330uf, 50v electrolytic capacitor c11 1 10uf, 63v electrolytic capacitor c13 1 100uf, 63v electrolytic capacitor l1, l2 2 1812sms-33nj coilcraft 33 nh coil tl1, tl2 2 l= 1.350in [34.29mm] w=0.082in [2.080mm] tl3 1 l= 0.469in [11.91mm] w=0.080in [2.020mm] tl4, tl5 2 l= 0.277in [7.03mm] w=0.323in [8.210mm] tl6 1 l= 0.207in [5.26mm] w=0.506in [12.85mm] tl7 1 l= 0.208in [5.28mm] w=0.506in [12.85mm] tl8,tl9 2 l= 0.275in [6.98mm] w=0.324in [8.230mm] tl10,tl11 2 l= 0.470in [11.93mm] w=0.080in [2.020mm] tl12 1 l= 1.351in [34.33mm] w=0.082in [2.080mm] board 3x5 1 rogers corp er=2.55 t=0.0026in h=0.030in
docid022224 rev 3 7/9 LET16045C package mechanical data 9 5 package mechanical data in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions and product status are available at: www.st.com . ecopack ? is an st trademark. figure 7. m243 package dimensions table 8. m243 (.230 x .360 2l n/herm w/flg) mechanical data dim. mm inch min. typ max. min. typ max. a 5.21 5.72 0.205 0.225 b 5.46 6.48 0.215 0.255 c 5.59 6.1 0.22 0.24 d 14.27 0.562 e 20.07 20.57 0.79 0.81 f 8.89 9.4 0.35 0.37 g 0.1 0.15 0.004 0.006 h 3.18 4.45 0.125 0.175 i 1.83 2.24 0.072 0.088 j 1.27 1.78 0.05 0.07
revision history LET16045C 8/9 docid022224 rev 3 6 revision history table 9. document revision history date revision changes 14-sep-2011 1 initial release. 04-nov-2011 2 updated table 3: thermal data , table 4: static , table 5: dynamic and figure 3: gain vs ouptut power and bias current . inserted table 6: impedance data and figure 2: gain and efficiency vs output power and figure 4: ouptut power vs drain supply voltage . 29-apr-2014 3 added section 4: board layout, schematic and bom .
docid022224 rev 3 9/9 LET16045C 9 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a particular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. st products are not designed or authorized for use in: (a) safety critical applications such as life supporting, active implanted devices or systems with product functional safety requirements; (b) aeronautic applications; (c) automotive applications or environments, and/or (d) aerospace applications or environments. where st products are not designed for such use, the purchaser shall use products at purchaser?s sole risk, even if st has been informed in writing of such usage, unless a product is expressly designated by st as being intended for ?automotive, automotive safety or medical? industry domains according to st product design specifications. products formally escc, qml or jan qualified are deemed suitable for use in aerospace by the corresponding governmental agency. resale of st products with provisions different from the statem ents and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or register ed trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2014 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - philippines - singapore - spain - swed en - switzerland - united kingdom - united states of america www.st.com
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