1 shantou huashan electronic devices co.,ltd . ? description the h7805 a series of three terminal positive regulators are available in the to - 220 package and with several fixed output voltages, making them useful in a wide range of applications . each type employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. if adequate heat sinking is provided, they can deliver over 1a output current. although designed primarily as fixed v oltage regulator, these devices can be used with external components to obtain adjustable voltages and currents. ? features ? absolute maximum ratings ? t a =25 ?? ? 3 - terminal fixed voltage regulator v i ?a?a input voltage ( for v o =5 v to 18v) ?-?-?-?-?-?- 35v r | jc ?a?a thermal resistance junction - cases ?-?-?-?- 5 ?? /w r | j a ?a?a thermal resistance junction - air ?-?-?-?- 65 ?? /w t opr ?a?a operating temperature range ?-?-?-?-?- 0~125 ?? t stg ?a?a storage temperature range ?-?-?-?-?- - 65~150 ?? h 7805 a 1 d input 2 d gnd 3 d output l output current up to 1a l output voltages of 5v l thermal overload protection l short circu it protection l output transistor safe operating area protection to - 2 20
2 shantou huashan electronic devices co.,ltd . ? refer to test circuit, unless otherwise specified,0 ??? t j ? 125 ?? ,i o =500ma, v i =10v ,c i =0.33 | f ,c o =0.1 | f, ? symbol parameter min. typ. max. unit co nditions 4.8 5.0 5.2 t j = 25 ?? v o output voltage 4.75 5.0 5.25 v 5 .o ma ? i o ? 1. 0a, p d ? 15w, 7v ? v i ? 20v 5 .0 5 0 t j = 25 ?? , 7 .3 v ? v i ? 2 0 v | v o line regulation (note1) 1. 5 25 m v t j = 25 ?? , 8v ? v i ? 12v 9 100 t j = 25 ?? , 5.0 ma ? i o ? 1 .5 a | v o load regulation (note1) 4 5 0 m v t j = 25 ?? , 250 ma ? i o ? 750 ma i q quiescent current 5.0 8 ma t j = 25 ?? 0.5 5 ma ? i o ? 1 .0 a | i q quiescent current change 0.8 m a 8 v ? v i ? 25v | v o / | t output voltage drift - 0.8 m v/ ?? i o =5ma v n output noise voltage 42 | v t a = 25 ?? , 10hz ? f ? 10 0 khz r r ripple rej ection 62 73 db f=120hz , 8v ? v i ? 18v v d dropout voltage 2 v i o =1a, t j = 25 ?? r o output resistance 15 m |? f=1 k hz i sc short circuit current 230 ma v i = 35v , t a = 25 ?? i pk peak current 2.2 a t j = 25 ?? h 7805 a
3 shantou huashan electronic devices co.,ltd . ? ? 1 ? 4 ? 2 ? 3 ? 5 ? 6 ? h 7805a
4 shantou huashan electronic devices co.,ltd . 7 ? 8 ? 9 ? 10 ? 11 ? 13 ? 12 ? h 7805a
5 shantou huashan electronic devices co.,ltd . h 7805a
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