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  a d justable a ccurate referenc e s ource tl431 (kl431) f e a tu r e s t h e o u t p u t v o l t a g e c a n b e a d j u s t e d t o 3 6 v l o w d y n a m i c o u t p u t i m ped a n c e , i t s t y p i c a l v a l u e i s 0 . 2 t rapp i n g c u rr e n t c apabi l i t y i s 1 t o 1 0 0 m a t h e t y p i c a l v a l u e o f t h e e q u i v a l e n t t e m pe r a t u r e f a c t o r i n t h e w h o l e t e m pe r a t u r e s c o p e i s 5 0 p p m / t h e e f f e c t i v e t e m pe r a t u r e c o m p e n s a t i o n i n t h e w o r k i n g r a n g e o f f u l l t e m p e r a t u r e l o w o u t p u t n o i s e v o l t a g e f a s t o n - s t a t e r e s p o n s e e l e c t r i c a l c h a r a c t e r i s ti c s ( t a = 2 5 un l e s s o t h e r w i s e s p e c i f i e d ) t i n u x a m p y t n i m s n o t i d n o c t s e t l o b m y s r e t e m a r a p v e g a t l o v t u p n i e c n e r e f e r r e f v k a = v r e f , i k a = 1 0 m a 2 . 4 5 2 . 5 2 . 5 5 v v e g a t l o v t u p n i e c n e r e f e r f o n o i t a i v e d k a = v r e f , i k a = 1 0 m a o v e r t e m pe r a t u r e ( * ) t m i n t a t m a x r a t i o o f c h a n g e i n r e f e r e n c e i n p u t v o l t a g e i k a = 1 0 m a , v k a = 1 0 v v r e f - 1 . 0 - 2 . 7 m v / v t o t h e c ha n g e i n c a t h o d e v o l t a g e i k a = 1 0 m a , v k a = 3 6 v 1 0 v - 0 . 5 - 2 . 0 m v / v i t n e r r u c t u p n i e c n e r e f e r r e f i k a = 1 0 m a , r 1 = 1 0 k , r 2 = 1 . 5 4 a d e v i a t i o n o f r e f er e n c e i n p u t curr e n t i k a = 1 0 m a , r 1 = 1 0 k , r 2 = t e g n a r e r u t a r e p m e t l l u f r e v o a = f u l l t e m p e r a t u r e m i n i m u m c a t h o d e curr e n t f o r r e g u l a t i o n i k a ( m i n ) v k a = v r e f 0 . 4 5 1 . 0 m a i t n e r r u c e d o h t a c e t a t s - f f o k a ( o f f ) v k a = 3 6 v , v r e f 0 . 1 5 0 . 0 0 = a z e c n a d e p m i c i m a n y d k a v k a = v r e f , i k a = 1 t o 1 0 0 m a , f 1 . 0 k h z 0 . 1 5 0 . 5 * t m i n = 0 , t m a x = + 7 0 m v 0 . 4 1 . 2 a v r e f / t v r e f / v k a i r e f / t 4 . 5 1 7 www .kexin.com.cn 1 c i e p y t d m s a b s o l u t e m a x i m u m ra t i n g s ( o pe r a t i n g t e m pe r a t u r e r a n g e a p p li e s u n l e s s o t h e r w i s e s p e c i f i e d ) t i n u g n i t a r l o b m y s r e t e m a r a p v e g a t l o v e d o h t a c k a 3 7 v c a t h o d e curr e n t ra n g e (c o n t i nu o u s ) i k a - 1 0 0 + 1 5 0 m a i e g n a r t n e r r u c t u p n i e c n e r e f e r r e f 0 . 0 5 + 1 0 m a p n o i t a p i s s i d r e w o p d 50 0 m w t e r u t a r e p m e t g n i t a r e p o o p r 0 7 0 t e g n a r e r u t a r e p m e t e g a r o t s s t g - 6 5 + 1 5 0 1.70 0.1 0.42 0.1 0.46 0.1 1.reference 2.anode 3.cathode
www .kexin.com.cn 2 c l a s s i f i c a ti o n o f v r e f t y p i c a l ch a r a c t e r i s ti c s 3 2 1 0 - 1 - 2 1 2 5 1 0 0 7 5 5 0 2 5 0 - 2 5 - 5 0 - 7 5 -1 0 0 ) a m ( t n e r r u c e d o h t a c ca t ho d e v ol t a g e ( v ) ca t ho d e curre n t v s . ca t ho d e v ol t a g e - 1 0 1 2 3 -2 0 0 0 2 0 0 4 0 0 8 0 0 6 0 0 v = v t = 2 5 k a r e f a ca t ho d e v ol t a g e ( v ) ca t ho d e curre n t v s . ca t ho d e v ol t a g e ) a ( t n e r r u c e d o h t a c v = v t = 2 5 k a r e f a i (m i n ) k a 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 0 - 5 - 1 5 - 1 0 - 2 0 - 2 5 - 3 0 - 3 5 - 4 0 ) v m ( e g a t l o v t u p n i e c n e r e f e r n i e g n a h c ca t ho d e v ol t a g e ( v ) chan g e i n re f eren c e i np u t v ol t a g e v s . ca t ho d e v ol t a g e i = 10 m a t = 2 5 k a a 1 k 1 0 k 10 0 k 1 m 1 0 m 1 0 0 7 0 4 0 2 0 1 0 7 4 2 1 0 . 7 0 . 4 0 . 2 0 . 1 ) ( e c n a d e p m i f requen c y (h z ) dynam i c i mpedan c e f requen c y t = 2 5 i = 1 m a t o 100 m a a k a tl431 (kl431) ) b d ( n o i t a c i f i l p m a e g a t l o v 7 0 6 0 5 0 4 0 3 0 2 0 1 0 - 1 0 0 1 k s ma l l s ign a l v ol t a g e a mpli f ica t i o n v s . f requen c y 1 0 k f requen c y (h z ) 10 0 k 1 m 1 0 m i = 10 m a t = 2 5 k a a 6 8 3 4 2 1 0 0 1 2 3 4 5 6 7 ) v ( e g a t l o v t u p t u o d n a t u p n i t i m e ( s ) p ul s e re s pon s e t = 2 5 a i n p u t o u tp u t c i e p y t d m s rank 0.3 0.5 1 2 rangfe 2.493 ~ 2.508 2.487~ 2.512 2.475~ 2.525 2.450~ 2.550


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