s m d ty p e w w w . k e x i n . c o m . c n 1 m os f e t p - ch an n el m osf et ndt 2955 ( k d t2 9 5 5 ) f e a tu r e s v d s ( v ) = - 6 0 v i d = - 2 . 5 a ( v g s = - 1 0 v ) r d s ( o n ) 3 0 0 m ( v g s = - 1 0 v ) r d s ( o n ) 5 0 0 m ( v g s = - 4 . 5 v ) s g d d a b s o l u te m a x i m u m ra ti n g s t a = 2 5 p a r a m e t e r s y m b o l r a t i n g u n i t d r a i n - s o u r c e v o l t a g e v d s - 6 0 g a t e - s o u r c e v o l t a g e v g s 2 0 c o n t i n u o u s d r a i n c u r r e n t ( n o t e . 1 ) i d - 2 . 5 p u l s e d d r a i n c u r r e n t i d m - 1 5 ( n o t e . 1 ) 3 p o w e r d i s s i p a t i o n ( n o t e . 2 ) 1 . 3 ( n o t e . 3 ) 1 . 1 t h e r m a l r e s i s t a n c e . j u n c t i o n - t o - a m b i e n t ( n o t e . 1 ) r t h ja 4 2 t h e r m a l r e s i s t a n c e . j u n c t i o n - t o - c a s e r t h jc 1 2 j u n c t i o n t e m p e r a t u r e t j 1 5 0 j u n c t i o n s t o r a g e t e m p e r a t u r e r a n g e t st g - 5 5 t o 1 5 0 p d w v / w a n o t e . 1 : 4 2 c / w w h e n m o u n t e d o n a 1 i n p a d o f 2 o z c o p p e r n o t e . 2 : 9 5 c / w w h e n m o u n t e d o n a . 0 0 6 6 i n p a d o f 2 o z c o p p e r n o t e . 3 : 1 1 0 c / w w h e n m o u n t e d o n a m i n i m u m p a d . 2 2 1.80 (max) 0.02 ~ 0.1 0.700.1 4.60 (typ) 10 b 7.00.3 3.500.2 6.500.2 3.000.1 2.30 (typ) sot-223 unit:mm 4 1 2 3 0.250 gauge plane 1.gate 2.drain 3.source 4.drain
s m d ty p e w w w . k e x i n . c o m . c n 2 m os f e t p - ch an n el m osf et ndt 2955 ( k d t2 9 5 5 ) e l e c tr i c a l ch a r a c te r i s ti c s t a = 2 5 p a r a m e t e r s y m b o l t e s t c o n d i t i o n s m i n t y p m a x u n i t d r a i n - s o u r c e b r e a k d o w n v o l t a g e v d s s i d = - 2 5 0 a , v g s = 0 v - 6 0 v z e r o g a t e v o l t a g e d r a i n c u r r e n t i d s s v d s = - 6 0 v , v g s = 0 v - 1 0 u a g a t e - b o d y l e a k a g e c u r r e n t i g s s v d s = 0 v , v g s = 2 0 v 1 0 0 n a g a t e t h r e s h o l d v o l t a g e v g s ( t h ) v d s = v g s i d = - 2 5 0 a - 2 - 4 v v g s = - 1 0 v , i d = - 2 . 5 a 3 0 0 v g s = - 4 . 5 v , i d = - 2 a 5 0 0 v g s = - 1 0 v , i d = - 2 . 5 a t j = 1 2 5 5 1 3 o n s t a t e d r a i n c u r r e n t i d ( o n ) v g s = - 1 0 v , v d s = - 5 v - 1 2 a f o r w a r d t r a n s c o n d u c t a n c e g f s v d s = - 1 0 v , i d = - 2 . 5 a 5 . 5 s i n p u t c a p a c i t a n c e c i ss 6 0 1 o u t p u t c a p a c i t a n c e c o ss 8 5 r e v e r s e t r a n s f e r c a p a c i t a n c e c r ss 3 5 t o t a l g a t e c h a r g e q g 1 1 1 5 g a t e s o u r c e c h a r g e q g s 2 . 4 g a t e d r a i n c h a r g e q g d 2 . 7 t u r n - o n d e l a y t i m e t d ( o n ) 1 2 2 1 t u r n - o n r i s e t i m e t r 1 0 2 0 t u r n - o f f d e l a y t i m e t d ( o f f ) 1 9 3 4 t u r n - o f f f a l l t i m e t f 6 1 2 b o d y d i o d e r e v e r s e r e c o v e r y t i m e t r r 2 5 b o d y d i o d e r e v e r s e r e c o v e r y c h a r g e q r r 4 0 n c d r a i n - s o u r c e a v a l a n c h e e n e r g y w d s s s i n g l e p u l s e , v d d = 3 0 v , i d = 2 . 5 a 1 7 4 m j m a x i m u m b o d y - d i o d e c o n t i n u o u s c u r r e n t i s - 2 . 5 a d i o d e f o r w a r d v o l t a g e v s d i s = - 2 . 5 a , v g s = 0 v (note.1) - 1 . 2 v n s m v g s = - 1 0 v , v d s = - 3 0 v , i d = - 1 a , r g = 6 ( n o t e . 1 ) r d s ( o n ) s t a t i c d r a i n - s o u r c e o n - r e s i s t a n c e i f = - 2 . 5 a , d i / d t = 1 0 0 a / s v g s = 0 v , v d s = - 3 0 v , f = 1 m h z v g s = - 1 0 v , v d s = - 3 0 v , i d = - 2 . 5 a ( n o t e . 1 ) p f n c n o t e . 1 : p u l s e t e s t : p u l s e w i d t h < 3 0 0 s , d u t y c y c l e < 2 . 0 % m a r k i n g m a r k i n g * d t 2 9 5 5
s m d ty p e w w w . k e x i n . c o m . c n 3 m osf e t p - ch an n el m osf et ndt 2955 ( k d t2 9 5 5 ) t y p i c a l ch a r a c te r i s i ti c s 0 3 6 9 12 0 1 2 3 4 5 - v d s , d r a in t o s o urc e v o l t a g e ( v ) - i d , dra i n curr e n t ( a ) v g s = -1 0 v -7 . 0 v - 4. 0v -4 . 5 v - 5. 0v -6 . 0v 0 . 8 1 1 . 2 1 . 4 1 . 6 1 . 8 2 0 3 6 9 1 2 - i d , dra i n cur re nt ( a ) r d s ( o n ) , no rmali ze d drai n- s o urce o n- r es i s tance v g s = - 4 . 5 v -5 . 0 v -6 . 0 v - 7 . 0 v -8 . 0 v -1 0 v figu r e 1. o n- r egion c ha r acte r istics. figu r e 2. o n- r esistance va r iation w ith drain current and g a te voltage. 0 . 4 0 . 6 0 . 8 1 1 . 2 1 . 4 1 . 6 1 . 8 -5 0 - 2 5 0 2 5 5 0 7 5 10 0 1 2 5 15 0 t j , j u nc t i o n t e m pe ra t u r e ( o c ) r d s( o n ) , n o rmaliz e d drain -s o urc e o n - r es i s t anc e i d = - 2 . 5 a v g s = -10 v 0 . 0 5 0. 1 0 . 1 5 0. 2 0 . 2 5 0. 3 0 . 3 5 2 4 6 8 1 0 - v g s , g a t e t o so ur c e vo l t a ge ( v ) r d s( o n ) , o n-r esis t anc e ( oh m ) i d = - 1 . 3 a t a = 1 2 5 o c t a = 2 5 o c figu r e 3. o n- r esistance va r iation w ithtempe r atu r e. figu r e 4. o n- r esistance va r iation w ith gate-to-source voltage. 0 2 4 6 8 1 0 2 . 5 3 . 5 4 . 5 5 . 5 - v g s , g at e t o s o u r c e v o l t a g e (v ) - i d , drain curr e nt ( a ) t a = - 5 5 o c 2 5 o c v d s = -10 v 12 5 o c 0 . 0 0 0 1 0 . 0 0 1 0 . 0 1 0 . 1 1 1 0 0 0 . 2 0 . 4 0 . 6 0 . 8 1 1 . 2 - v s d , b o d y d i o d e f o r w a rd v o l t a g e ( v ) - i s , r eve r se dra i n curr e n t ( a ) v g s = 0 v t a = 1 2 5 o c 2 5 o c -5 5 o c figu r e 5. t r ansfe r c ha r acte r istics. figu r e 6. b od y d iode fo r w a r d voltage va r iation w i th source current and temperature.
s m d ty p e w w w . k exi n . co m . c n 4 m osfe t . p - ch an n el m osf et ndt 2955 ( k d t2 9 5 5 ) t y p i c a l ch a r a c te r i s i ti c s 0 2 4 6 8 1 0 0 3 6 9 1 2 q g , ga t e ch a r g e (n c ) - v g s , ga t e - s o urc e v o lta g e ( v ) i d = - 2 . 5 a v d s = -20 v -3 0 v -40 v 0 2 0 0 4 0 0 6 0 0 8 0 0 0 1 5 3 0 4 5 6 0 - v d s , dr a i n t o so ur c e vo l t a g e ( v ) ca p ac i t anc e (p f ) c i s s c o s s c r s s f = 1 m hz v g s = 0 v figu r e 7 . g a te c ha r g e c ha r acte r i st i cs . figu r e 8 . c ap ac i ta n ce c ha r acte r i st i cs . 0 . 0 1 0 . 1 1 1 0 1 0 0 0 . 1 1 1 0 10 0 -v d s , d ra i n - so ur c e v o l t a ge (v ) -i d , drain curr e nt (a ) d c 1 s 10 0 m s 10 0 s r d s (o n ) l i m i t v g s = -10 v s i n gle p u ls e r j a = 11 0 o c / w t a = 2 5 o c 10 m s 1 m s 10 s 0 1 0 2 0 3 0 4 0 5 0 0 . 0 0 1 0 . 0 1 0 . 1 1 1 0 1 0 0 1 0 0 0 t 1 , t i m e ( s e c ) p (p k ) , pe ak t ran sie n t p ow e r ( w ) s i ng le p u ls e r j a = 110 c/ w t a = 25 c figu r e 9 . max i m u m s afe o pe r at ing a r ea . figu r e 10 . singl e pul se max i m u m po w e r dissipation. 0.001 0.01 0.1 1 0.0001 0.001 0.01 0.1 1 10 100 1000 t 1 , t i m e ( sec ) r (t) , n o r m al i z e d e ff e ct i ve tran s i e n t th e r m a l r es i s t anc e r j a ( t) = r(t) * r j a r j a = 110 o c/w t j - t a = p * r j a (t) d u ty cy c l e, d = t 1 / t 2 p ( p k ) t 1 t 2 s i n g l e p u l s e 0 . 0 1 0 . 0 2 0 . 0 5 0 . 1 0. 2 d = 0 . 5 figu r e 11 . t r a n s i e n t th e r m a l r es pon se c u r v e . t h e rm al c h a r acte r izati o n p e r f o rm e d u si n g t h e c o n d iti o n s d esc r i b e d i n n o te 1c. t r a n sie n t t h e rm al r es po n se will c h a n g e d e p e n d i n g o n t h e ci r c u i t bo a r d d esi g n .
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