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BL78XX Datasheet(PDF) 7 Page - SHANGHAI BELLING CO., LTD. |
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BL78XX Datasheet(HTML) 7 Page - SHANGHAI BELLING CO., LTD. |
7 / 12 page BL78XX www.belling.com.cn V1.0 Page7 BL7 81 2 E LE CT RI CAL CH ARACT ERIS TICS (R e fe r to th e te s t c i rc u i t, -2 0 °C < T J < 85 °C, Io=50 0 mA , Vi=19V, C i=0.33µ F, Co=0. 1µ F, u n l e s s o th e r w is e sp e c i f ie d C h a r a c te r is t i c s S ymb o l Te s t C o n d i t io n s Min Typ Ma x U n i t T J = + 2 5 ° C 11 . 5 1 2 1 2 . 5 O u t p u t Vo l t a g e Vo 5 . 0 m A ≤ I o ≤ 1 . 0 A , P o ≤ 1 5 W Vi = 1 4 . 5 V t o 2 7 V 11 . 4 1 2 1 2 . 6 V Vi = 1 4 . 5 V t o 3 0 V 1 0 2 4 0 L i n e R e g u l a t i o n * R e g l i n e T J = + 2 5 ° C Vi = 1 6 V t o 2 2 V 3 . 0 1 2 0 mV I o = 5 . 0 m A t o 1 . 5 A 11 2 4 0 L o a d R e g u l a t i o n * R e g l o a d T J = + 2 5 ° C I o = 2 5 0 m A t o 7 5 0 m A 5 . 0 1 2 0 mV Q u i e s c e n t C u r r e n t I Q T J = + 2 5 ° C 5 . 1 8 . 0 mA I o = 5 . 0 m A t o 1 . 0 A 0 . 1 0 . 5 Q u i e s c e n t C u r r e n t C h a n g e Δ I Q Vi = 1 4 . 5 V t o 3 0 V 0 . 5 1 . 0 mA O u t p u t Vo l t a g e D r i f t Δ Vo / Δ T Io =5 . 0 mA -1 m V / ° C O u t p u t N o i s e Vo l t a g e V N f = 1 0 H z t o 1 0 0 K H z , T A = + 2 5 °C 7 6 µ V /Vo R i p p l e R e j e c t i o n R R f = 1 2 0 H z Vi = 1 5 V t o 2 5 V 5 5 7 1 d B D r o p o u t Vo l t a g e V D r o p I o = 1 A , T J = + 2 5 ° C 2 V S h o r t C i r c u i t C u r r e n t I S C Vi = 3 5 V, T A = + 2 5 ° C 2 3 0 mA P e a k C u r r e n t I P K T J = + 2 5 ° C 2 . 2 A * Lo a d a n d l i n e re g u la t io n a r e s p e c i f ie d a t c o n s ta n t ju n c t io n t e mp e ra tu re . C h a n g e s in Vo d u e to h e a t in g e ffe c ts mu s t b e t a k e n in to a c c o u n t s e p a ra t e l y. P u ls e t e s t in g w i th l o w d u t y is u se d . |
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