parameter symbol typ unit input voltage v i 35 v output voltage v o 9.0 v peak current i pk 2.2 a operating temperature range t opr 0~125 o c storage temperature rang e t stg -65~150 o c LM7809J general description parameter symbol test conditions min typ max unit output voltage v o v i = 11.5v to 25v 8.73 9.0 9.27 v line regulation (note1) regline v i = 11.5v to 25v 6.0 180 mv v i = 12v to 17v 2.0 90 load regulation (note1) regload i o = 5.0ma to1.5a 12 180 mv i o =250ma to 750ma 4 90 quiescent current i q t j =+25 o c 5 8 ma ripple rejection rr f = 120hz, v o = 11v to 21v 56 71 db dropout voltage v drop i o = 1a, t j =+25 o c 2 v output resistance r o f = 1khz 0.017 w short circuit current i sc v i = 35v, t a =+25 o c 250 ma peak current i pk t j =+25 o c 2.2 a 3-terminal 1a positive voltage regulator the lm7809 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 voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. product specification absolute maximum ratings electrical characteristics (refer to test circuit, io = 500ma, vi = 15v, ci= 0.33uf, co=0.1uf unless otherwise specified) ( ta = 25 c) o ( ta = 25 c) o to-252 tiger electronic co.,ltd
|
