weitron http://www .weitron.com.tw WTK4228 surface mount dual n-channel d1 8 7 6 5 1 2 3 4 d1 d2 d2 s1 g1 s2 g2 so-8 drain current 6.8 amperes 1 featur es: *sup er high dense c ell design f or lo w r ds(on) *dual n mosfet package *simple drive requirement *so-8 package r ds(on) <26m @v gs = 10v enhancement mode mosfet r ds(on) <40m @v gs = 4.5v 1/ 5 04-dec-08 rating symbol v alue unite v ds v gs i d i dm p d r ja op er a ting j unc tion and s t or age t emp er a tur e r ange t j , t st g -55 t o 150 c v v a w c/w d r ain-s our c e v oltage g a t e-s our c e v oltage c on tinuous d r ain c ur r en t (t a =25?c) p ulsed d r ain c ur r en t p o w er d issipa tion m aximax j unc tion-t o-a mbien t maximum ratings ( t a=25 c u nless o ther wise s p ecified) device marking WTK4228=4228ss 30 20 6.8 a 5.5 40 2 62.5 - + (t a =70?c) (t a =25?c) (2) (1) (1) (1) 30 voltage drain source voltage l e a d( p b)- f r ee p b
weitron http://www .weitron.com.tw WTK4228 2/5 04-dec-08 e l e c t r i c a l c h a r a c t e r i s t i c s ( t j = 2 5c u n l e s s o t h e r w i s e s p e c i f i e d ) p a r a m e t e r s y m b o l m i n . t y p . m a x . u n i t t e s t c o n d i t i o n s 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 b v d s s 3 0 - - v v g s = 0 , i d = 2 5 0 u 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 ) 1 . 0 - 3 . 0 v v d s = v g s , i d = 2 5 0 u 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 - 1 5 - s v d s = 1 0 v , i d = 6 a g a t e - s o u r c e l e a k a g e c u r r e n t i g s s - - 1 0 0 n a v g s = 2 0 v d r a i n - s o u r c e l e a k a g e c u r r e n t ( t j = 2 5 ) - - 1 u a v d s = 3 0 v , v g s = 0 d r a i n - s o u r c e l e a k a g e c u r r e n t ( t j = 7 0 ) i d s s - - 2 5 u a v d s = 2 4 v , v g s = 0 - - 2 6 v g s = 1 0 v , i d = 6 a 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 2 r d s ( o n ) - - 4 0 m? v g s = 4 . 5 v , i d = 4 a t o t a l g a t e c h a r g e 2 q g - 9 1 5 g a t e - s o u r c e c h a r g e q g s - 2 - g a t e - d r a i n ( ? m i l l e r ? ) c h a n g e q g d - 6 - n c i d = 6 . 8 a v d s = 2 4 v v g s = 4 . 5 v t u r n - o n d e l a y t i m e 2 t d ( o n ) - 1 0 - r i s e t i m e t r - 9 - t u r n - o f f d e l a y t i m e t d ( o f f ) - 1 8 - f a l l t i m e t f - 6 - n s v d s = 1 5 v i d = 1 a v g s = 1 0 v r g = 3 . 3 r d = 1 5 i n p u t c a p a c i t a n c e c i s s - 5 8 0 9 3 0 o u t p u t c a p a c i t a n c e c o s s - 1 5 0 - 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 s s - 1 0 8 - p f v g s = 0 v v d s = 2 5 v f = 1 . 0 m h z s o u r c e - d r a i n d i o d e p a r a m e t e r s y m b o l m i n . t y p . m a x . u n i t t e s t c o n d i t i o n s f o r w a r d o n v o l t a g e 2 v s d - - 1 . 3 v i s = 1 . 7 a , v g s = 0 v , t j = 2 5 r e v e r s e r e c o v e r y t i m e t r r - 1 5 - n s r e v e r s e r e c o v e r y c h a r g e q r r - 9 - n c i s = 6 . 8 a , v g s = 0 v d i / d t = 1 0 0 a / ? s n o t e s : 1 . p u l s e w i d t h l i m i t e d b y m a x . j u n c t i o n t e m p e r a t u r e . 2 . p u l s e w i d t h 3 0 0 u s , d u t y c y c l e 2 % . 3 . s u r f a c e m o u n t e d o n 1 i n 2 c o p p e r p a d o f f r 4 b o a r d ; 1 3 5 / w w h e n m o u n t e d o n m i n . c o p p e r p a d .
weitron http://www .weitron.com.tw WTK4228 w e i t r o n 3/5 04-dec-08
weitron http://www .weitron.com.tw WTK4228 w e i t r o n 4/5 04-dec-08
weitron http://www .weitron.com.tw WTK4228 5/5 04-dec-08 so-8 package outline dimensions u nit:mm 1 (4x) b eb e1 l 7(4x) a 2 1 a a c symbols min 1 . 3 5 0 . 1 0 0 . 3 5 0 . 1 8 4 . 6 9 3 . 5 6 5 . 7 0 1 . 2 7 b s c 0 . 6 0 0 max 1 . 7 5 0 . 2 0 0 . 4 5 0 . 2 3 4 . 9 8 4 . 0 6 6 . 3 0 0 . 8 0 8 millimeters a a 1 b c d e 1 e b e l 7 d e
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