DRF RELIABILITY DATA

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Geraldine Hicks
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1 Y K-ambda 9--0

2 X alculated values of - omponent derating -~ ain components temperature rise list -~ lectrolytic capacitor lifetime -9 Vibration test -0 bnormal est -~ hermal shock test - est results are typical data evertheless the following results are considered to be actual capability data because all units have nearly the same characteristics K-ambda

3 alculated values for alculating ethod alculated based on part count reliability projection of J (-90) ndividual failure rates λ is given to each part and is calculated by the count of each part ormula = X 0 lequip lequip = X 0 () n i ( l pq ) i i= where lequip = otal quipment ailure ate ( ailure / 0 ours ) l = eneric ailure ate or he ith eneric art ( ailure / 0 ours ) i = Quantity of ith eneric art n = umber of ifferent eneric art ategories pq = eneric Quality actor for the ith eneric art ( pq = ) Values (, X) =,9 (ours) K-ambda -

4 omponent derating () alculating method (a) easuring onditions nput V, 0V mbient temperature 0 utput V, 0 (00%) ounting method tandard ounting (b) emiconductors ompared with maximum junction temperature and actual one which is calculated based on case temperature, power dissipation and thermal impedance (c), esistors, apacitors, etc mbient temperature, operating condition, power dissipation and so on are within derating criteria (d) alculating ethod of hermal mpedance j-c = j(max) - c c(max) j-a = j(max) - a c(max) j-l = j(max) - l c(max) c ase temperature at start point of derating ; in general a mbient temperature at start point of derating ; in general l ead temperature at start point of derating ; in general c(max) aximum collector(channel) dissipation (ch(max)) j(max) aximum junction(channel) temperature (ch(max)) ( j - c) ( ch - c) hermal impedance between junction(channel) and case j-a hermal impedance between junction and air j-l hermal impedance between junction and lead K-ambda -

5 () omponent erating ist ocation o Q 00 Q 00 Q Q Q0 00 Q0 00 Q0-00, X Q0-00, X 0-0(,Q) 0(,Q) Vin = V oad = 00% a = 0 j-c = /W jmax = 0, d = W, c = j = c + (( j-c) d) = 9 = 0% c = 9 j-c = /W jmax = 0, d = W, c =, j = c + (( j-c) d) = 9 = % c = 9 jmax = 0, d = 00W, j = c + (( j-c) d) = 9 = 9% jmax = 0, d = 00W, j = c + (( j-c) d) = 0 = % jmax = 0, j-c = 0 /W, c = 9, d(max) = 0W c = 99 j-c = 0 /W, c = 9, d(max) = 0W c = 99 d = 0W, c =, c = 9 j-c = /W c =, c = 9 j-c = 0 /W, c =, d(max) = W c = j-c = 0 /W c = d(max) = W c = j-c = /W j = c + (( j-c) d) = 9 = % jmax = 0, d = 0W, j = c + (( j-c) = 09% jmax =, d = 0W, j = c + (( j-c) = 9% jmax =, d = 0W, j = c + (( j-c) = % jmax = 0, d = W, j = c + (( j-c) = % jmax = 0, d = 0000W, j = c + (( j-c) = 9% jmax = 0, d = 0000W, j = c + (( j-c) = 9% d) = 9 d) = d) = 9 j-c = /W c = d) = 09 c = 0 j-c = 0 /W c = 9 c = 99 j-c = 0 /W c = 9 c = 99 d) = 99 d) = 99 K-ambda -

6 () omponent erating ist ocation o Vin = V jmax =, 0 d = W, c = j = c + (( j-c) d) = 990 = 9% jmax = 0, j-l = 0 /W, d = 00W, l =, j = l + (( j-l) d) = 00 = 9% jmax = 0, j-a = /W c = 9 d = 09W, c = j = a + (( j-a) d) = 0 = 9% c = 9 0 0(,Q) 0 0(,Q) 0 -Y--() 0 -Y--() 0 -Y--() /, X 0 9/, X 0 0J oad = 00% j-c = 9 /W jmax =, j-c = 0 /W d = 000W, c = 9, j = c + (( j-c) d) = 9 = % jmax =, j-c = 0 /W d = 0W, c = j = c + (( j-c) d) = 9 = 9% jmax =, j-c = 0 /W d = 000W, c = j = c + (( j-c) d) = 9 = % jmax = 0, j-a = /W, d = 00W, c = 9, j = c + (( j-c) d) = 0 = % jmax = 0, j-c = 0 /W, d = 00W, c = 9, j = c + (( j-c) d) = = % jmax = 0, j-c = 9 /W, d = 0W, c =, j = c + (( j-c) d) = 9 = 9% jmax = 0, j-c = 9 /W, d = 0W, c =, j = c + (( j-c) d) = = % jmax = 0, j-c = /W d = 0W, c = j = c + (( j-c) d) = 0 = 99% K-ambda a = 0 l = 9 c = 99 c = 9 c = 9 c = 99 c = 99 c = 9 c = 0 c = 9 -

7 () omponent erating ist ocation o Q 00 Q 00 Q Q Q0 00 Q0 00 Q0-00, X Q0-00, X 0-0(,Q) 0(,Q) Vin = 0V oad = 00% a = 0 j-c = /W jmax = 0, d = 09W, c = j = c + (( j-c) d) = = % c = j-c = /W jmax = 0, d = 09W, c =, j = c + (( j-c) d) = = % c = jmax = 0, j-c = 0 /W, d = 00W, c =, j = c + (( j-c) d) = 0 = 0% jmax = 0, j-c = 0 /W, d = 00W, c =, j = c + (( j-c) d) = = % jmax = 0, j-c = /W d(max) = 0W c = d = 0W, d(max) = 0W c = c =, c = j-c = /W c =, c = j-c = 0 /W, c =, d(max) = W c = 0 j-c = 0 /W c = 0 d(max) = W c = 00 j-c = /W c = c = j-c = 0 /W c = c = j-c = 0 /W c = c = j = c + (( j-c) d) = = % jmax = 0, d = 0W, j = c + (( j-c) = % jmax =, d = 0W, j = c + (( j-c) = % jmax =, d = 0W, j = c + (( j-c) = % jmax = 0, d = W, j = c + (( j-c) = 9% jmax = 0, d = 0000W, j = c + (( j-c) = % jmax = 0, d = 0000W, j = c + (( j-c) = % d) = d) = 0 d) = 009 d) = 9 d) = d) = K-ambda -

8 () omponent erating ist ocation o Vin = 0V jmax =, 0 d = 9W, c = j = c + (( j-c) d) = = 9% jmax = 0, j-l = 0 /W, d = 00W, l = 0, j = l + (( j-l) d) = 90 = % jmax = 0, j-a = /W c = d = 09W, c = j = a + (( j-a) d) = 000 = 9% c = 0 0(,Q) 0 0(,Q) 0 -Y--() 0 -Y--() 0 -Y--() /, X 0 9/, X 0 0J oad = 00% j-c = 9 /W a = 0 l = 90 j-c = jmax =, j-c = 0 /W 0 / d = 000W, c =, c = j = c + (( j-c) d) = = % j-c = jmax =, j-c = 0 /W 0 / d = 0W, c = c = j = c + (( j-c) d) = = % jmax =, j-c = 0 /W j-c = d = 000W, c = c = j = c + (( j-c) d) = = % jmax = 0, j-a = /W, d = 00W, c =, c = j = c + (( j-c) d) = 9 = % jmax = 0, j-c = 0 /W, d = 00W, c =, c = j = c + (( j-c) d) = 99 = % jmax = 0, j-c = 9 /W, d = 0W, c = 9, c = 9 j = c + (( j-c) d) = 0 = % jmax = 0, j-c = 9 /W, d = 0W, c =, c = 9 j = c + (( j-c) d) = 9 = % jmax = 0, j-c = /W d = 0W, c = 0 c = 90 j = c + (( j-c) d) = 00 = 99% K-ambda -

9 ain components temperature rise list ondition tandard ounting ethod nput Voltage (V) utput Voltage (V) utput urrent () 0 emperature rise ( ) utput erating ocation o 0 Q Q Q0 Q0 Q0 Q arts ame K o = 00% o = % (a = 0 ) (a = 0 ) tandard ounting K-ambda -

ain components temperature rise list ondition tandard ounting ethod nput Voltage (V) 0 utput Voltage (V) utput urrent () 0 emperature rise ( ) utput erating

10 ain components temperature rise list ondition tandard ounting ethod nput Voltage (V) 0 utput Voltage (V) utput urrent () 0 emperature rise ( ) utput erating o = 00% o = % (a = 0 ) (a = 0 ) ocation o arts ame tandard ounting 9 9 K 9 0 Q Q Q0 Q0 Q0 Q K-ambda -

11 lectrolytic capacitor lifetime a = 0 = 0 tandard ounting = 0 Vin = V ife ime (years) a = a = a = ife imes (years) oad (%) 0 Vin = 0V 0 utput urrent (%) 0 utput urrent (%) 00 0 oad (%) a = a = a = ife imes (years) ife ime (years) 0 K-ambda 00-9

12 Vibration est () Vibration est lass requency Variable ndurance est () quipment sed ontroller Vibrator ccelerometer aser () V-0 (ing ynamics) (ytran) () he umber f (evice nder est) nit () est onditions weep requency weep ime cceleration ounting 0 - z minute tandard ounting irection est ime on-operation X, Y, Z hour each axis () est ethod ix the on the mounting rail with stopper on each corner tandard mounting position as per picture above () est results - K K-ambda -0

13 bnormal test () est ondition and ircuit nput Voltage 0Vac utput V, 0 a, 0% () est esults (a amaged) o est osition Q Q Q0 Q0 Q est ode est esults K W 9 0 V a Q,Z, iccup a Q in increase in increase a Q,Z, iccup a Q in increase in increase a Q0,Q0,0, a Q0, a,q0,q0 a Q0,Q0,0, a Q0, a,q0,q0 Q,Q Vgs decrease K-ambda a Q,Q, ower actor decrease ower actor decrease ower actor decrease -

14 o est osition Q Q0 Q est ode K -K -K -K -K -K -K -K -K -K - - est esults K W V 9 0 Q,Q Vgs decrease iccup ower actor decrease a Q a Q a Q in increase in increase in increase in increase a ower actor ecrease a ower actor ecrease a Q a Q V ncrease K-ambda -

15 o est osition est ode est esults K W V 9 0 on/off cant operate aq,q aq,q ower actor ecrease Vbulk ncrease a aq,q aq in increase aq aq in increase ower actor ecrease iccup aq0,q0, K-ambda -

16 o est osition est ode est esults K W V 9 0 iccup Vo decrease Vds increase a,q0,q0 a,q0,q0 Vo hiccup in ncrease in ncrease in ncrease in ncrease in ncrease in ncrease in ncrease in ncrease in ncrease K-ambda -

17 o est osition est ode est esults K W V 9 0 in ncrease a0,09 iccup K-ambda -

18 hermal shock test () quipment used hermal shock chamber ( ) () he number of (ower upply nder est) unit () est onditions mbient temperature -0 est time 0min each temp est cycle 00 cycles perating o operating + cycle + 0mins -0 () est ethod 0mins efore the test, check if there is no abnormal output and put the in the testing chamber hen test it in above cycles fter the test is completed, leave it for hour at the room temperature and check to make sure that there is no abnormal output () est esults K K-ambda -

LS35 RELIABILITY DATA

LS35 RELIABILITY DATA L35 LIABILIY DAA DWG. o A581-57-01 AD CHK DWG DK-Lambda L35 I D X AG 1. Calculated Values of MBF - 1 2. Component Derating..... - 2 3. Main Components emperature ise Δ List - 5 4. lectrolytic Capacitor