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SC338IMSTRT 数据表(PDF) 3 Page - Semtech Corporation |
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SC338IMSTRT 数据表(HTML) 3 Page - Semtech Corporation |
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3 / 14 page ![]() 3 2004 Semtech Corp. www.semtech.com SC338(A) POWER MANAGEMENT Notes: (1) V PWR = input voltage to pass device drains (or sources depending upon orientation of FETs). (2) If V TH(UV) is exceeded for longer than 50µs (nom.) the protection circuitry will shut down that output. (3) During startup only, V TH(PGD) is -6% (typ.), then switches to -12% (typ.). r e t e m a r a Pl o b m y Ss n o i t i d n o C t s e Tn i Mp y Tx a Ms t i n U ) . t n o C ( N E t n e r r u C s a i B t u p n I e l b a n EI N E V N E V 0 =0 A µ V N I V = N E V 2 1 r o V 5 = 1 -1 + J D A t n e r r u C s a i B t u p n I t s u j d AI J D A V J D A V 5 . 0 = 0 0 1 - 0 0 0 1 + A n e g a tl o V e c n e r e f e RV J D A % 5 . 2 - 0 0 5 . 0 % 5 . 2 + V C ° 0 : y l n o A 8 3 3 C S ≤ T A ≤ C ° 5 8 + % 5 . 1 -% 5 . 1 + V R D t n e r r u C t u p t u OI V R D p u t r a t s , g n i c r u o S V li t n u ( ) D G P ( H T ) d e h c a e r s i 0 1A µ p u t r a t s r e tf a , g n i c r u o S 7 . 0 0 . 2A m g n i k n i S 0 0 4 0 5 7A µ e g a tl o V t u p t u OV V R D I , n O ll u F V R D V , A m 0 = N I V 2 1 = 6 . 6 9 . 6V I , n O ll u F V R D V , A m 0 = N I V 5 = 0 7 . 4 5 8 . 4 n o i t c e t o r P e g a t l o V r e d n U d l o h s e r h T p ir T ) 2 ( V ) V U ( H T n i p J D A t a d e r u s a e M 0 4 0 5 0 6 V % J D A D G P d l o h s e r h T d o o G r e w o P ) 3 ( V ) D G P ( H T n i p J D A t a d e r u s a e M 5 1 - 2 1 - 9 - V % J D A e g a tl o V w o L c i g o L t u p t u OV D G P V J D A I , V 4 . 0 = D G P A m 1 - = 4 . 0 V e g a k a e L d o o G r e w o P t n e r r u C I D G P V J D A V 0 , V 5 . 0 = ≤ V D G P ≤ V N I 1 - 0 1 + A µ t r a t S t f o S e m i T e s i R t u p t u O V % 0 1 T U O V % 0 9 o t T U O , V T U O V 5 0 . 1 = t r C D N G - V R D d e c a l p t o n =0 5 1s µ C D N G - V R D F n 0 1 =0 5 8 Electrical Characteristics (Cont.) Unless specified: T A = 25°C, VIN = VEN = 5V ± 5%, VPWR (1) = 1.5V ± 5%, 0A ≤ I OUT ≤ 3A. Values in bold apply over full operating ambient temperature range. |
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