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july 2008 rev 2 1/12 12 STW9NK95Z n-channel 950 v - 1.15 ? - 7 a - to-247 zener-protected supermesh tm power mosfet features extremely high dv/dt capability 100% avalanche tested gate charge minimized application switching applications description the supermesh? series is obtained through an extreme optimization of st?s well established strip-based powermesh? layout. in addition to pushing on-resistance significantly down, special care is taken to ensure a very good dv/dt capability for the most demanding applications. figure 1. internal schematic diagram type v dss r ds(on) max i d pw STW9NK95Z 950 v < 1.38 ? 7 a 160 w to-247 1 2 3 table 1. device summary order code marking package packaging STW9NK95Z 9nk95z to-247 tube www.st.com
contents STW9NK95Z 2/12 contents 1 electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
STW9NK95Z electrical ratings 3/12 1 electrical ratings table 2. absolute maximum ratings symbol parameter value unit v ds drain-source voltage (v gs = 0) 950 v v gs gate-source voltage 30 v i d drain current (continuous) at t c = 25 c 7 a i d drain current (continuous) at t c =100 c 4.41 a i dm (1) 1. pulse width limited by safe operating area drain current (pulsed) 28 a p tot total dissipation at t c = 25 c 160 w derating factor 1.28 w/c vesd(g-s) g-s esd (hbm c=100 pf, r=1.5 k ?) 4000 v dv/dt (2) 2. i sd 7 a, di/dt 100 a/s,v dd 80% v (br)dss peak diode recovery voltage slope 4.5 v/ns t j t stg operating junction temperature storage temperature -55 to 150 c table 3. thermal data symbol parameter value unit r thj-case thermal resistance junc tion-case max 0.78 c/w r thj-a thermal resistance junc tion-ambient max 50 c/w t l maximum lead temperature for soldering purpose 300 c table 4. avalanche characteristics symbol parame ter value unit i as avalanche current, repetitive or not-repetitive (pulse width limited by t j max) 7a e as single pulse avalanche energy (starting t j =25 c, i d =i as , v dd =50 v) (see figure 17) and (see figure 18) 300 mj
electrical characteristics STW9NK95Z 4/12 2 electrical characteristics (t case =25c unless otherwise specified) table 5. on/off states symbol parameter test conditions min. typ. max. unit v (br)dss drain-source breakdown voltage i d = 1 ma, v gs = 0 950 v i dss zero gate voltage drain current (v gs = 0) v ds = max rating, v ds = max rating @125 c 1 50 a a i gss gate body leakage current (v ds = 0) v gs = 20 v, v ds = 0 10 a v gs(th) gate threshold voltage v ds = v gs , i d = 100 a 33.754.5 v r ds(on) static drain-source on resistance v gs = 10 v, i d = 3.6 a 1.15 1.38 ? table 6. dynamic symbol parameter test conditions min. typ. max. unit g fs (1) 1. pulsed: pulse duration=300s, duty cycle 1.5% forward transconductance v ds =15 v, i d = 3.6 a 5.7 s c iss c oss c rss input capacitance output capacitance reverse transfer capacitance v ds = 25 v, f=1 mhz, v gs = 0 2256 189 30 pf pf pf c oss eq (2) . 2. c oss eq. is defined as a constant equi valent capacitance giving t he same charging time as c oss when v ds increases from 0 to 80% v dss equivalent output capacitance v gs =0, v ds =0 to 760 v 37 pf r g intrinsic gate resistance f=1 mhz, open drain 1.6 ? q g q gs q gd total gate charge gate-source charge gate-drain charge v dd = 760 v, i d = 7.2 a v gs = 10 v (see figure 15) 56 10 30 nc nc nc
STW9NK95Z electrical characteristics 5/12 table 7. switching times symbol parameter test conditions min. typ. max. unit t d(on) t r turn-on delay time rise time v dd = 475 v, i d = 3.6 a, r g = 4.7 ?, v gs = 10 v (see figure 14) (see figure 19) 22 15 ns ns t d(off) t f turn-off delay time fall time v dd = 475 v, i d = 3.6 a, r g = 4.7 ?, v gs = 10 v (see figure 14) (see figure 19) 51 22 ns ns table 8. gate-source zener diode symbol parameter test conditions min. typ. max. unit bv gso (1) 1. the built-in back-to-back zener diodes have spec ifically been designed to enhance not only the device?s esd capability, but also to make them safely absor b possible voltage transients that may occasionally be applied from gate to source. in this respect the z ener voltage is appropriate to achieve an efficient and cost-effective intervention to protect the device?s in tegrity. these integrated zener diodes thus avoid the usage of external components. gate-source breakdown voltage igs=1 ma(open drain) 30 v table 9. source drain diode symbol parameter test conditions min typ. max unit i sd source-drain current 7 a i sdm (1) 1. pulse width limited by safe operating area source-drain current (pulsed) 28 a v sd (2) 2. pulsed: pulse duration=300s, duty cycle 1.5% forward on voltage i sd = 7.2 a, v gs =0 1.6 v t rr q rr i rrm reverse recovery time reverse recovery charge reverse recovery current i sd = 7.2 a, di/dt = 100 a/s, v dd = 60v, tj = 25c (see figure 16) 660 5.9 18 ns c a t rr q rr i rrm reverse recovery time reverse recovery charge reverse recovery current i sd = 7.2 a, di/dt = 100 a/s, v dd = 60v, tj = 150c (see figure 16) 800 7.4 18.6 ns c a
electrical characteristics STW9NK95Z 6/12 2.1 electrical characteristi cs (curves) figure 2. safe operating area figure 3. thermal impedance figure 4. output characteristics figure 5. transfer characteristics figure 6. normalized b vdss vs temperature figure 7. static drain-source on resistance
STW9NK95Z electrical characteristics 7/12 figure 8. gate charge vs gate-source voltage figure 9. capacitance variations figure 10. normalized gate threshold voltage vs temperature figure 11. normalized on resistance vs temperature figure 12. source-drain diode forward characteristics figure 13. maximum avalanche energy vs temperature
test circuits STW9NK95Z 8/12 3 test circuits figure 14. switching times test circuit for resistive load figure 15. gate charge test circuit figure 16. test circuit for inductive load switching and diode recovery times figure 17. unclamped inductive load test circuit figure 18. unclamped inductive wavefo rm figure 19. switching time waveform
STW9NK95Z package mechanical data 9/12 4 package mechanical data in order to meet environmental requirements, st offers these devices in ecopack? packages. these packages have a lead-free second level interconnect. the category of second level interconnect is marked on the package and on the inner box label, in compliance with jedec standard jesd97. the maximum ratings related to soldering conditions are also marked on the inner box label. ecopack is an st trademark. ecopack specifications are available at: www.st.com
package mechanical data STW9NK95Z 10/12 dim. mm. min. typ max. a4. 8 55.15 a1 2.20 2.60 b 1.0 1.40 b 1 2.0 2.40 b 2 3 .0 3 .40 c0.40 0. 8 0 d1 9 . 8 5 20.15 e 15.45 15.75 e5.45 l 14.20 14. 8 0 l1 3 .70 4. 3 0 l2 1 8 .50 ?p 3 .55 3 .65 ?r 4.50 5.50 s 5.50 to-247 mechanical data
STW9NK95Z revision history 11/12 5 revision history table 10. document revision history date revision changes 11-oct-2006 1 initial release 03-jul-2008 2 updated figure 6, figure 7, figure 9
STW9NK95Z 12/12 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 parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by an authorized st representative, st products are not recommended, authorized or warranted for use in military , air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements 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 registered 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. ? 2008 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 - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com

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