Document
isc Three Terminal Positive Voltage Regulator
MC7812E
FEATURES
·Output current in excess of 1 A ·Output voltage of 12V ·Internal thermal overload protection ·Output transition Safe-Area compensation ·100% avalanche tested ·Minimum Lot-to-Lot variations for robust device
performance and reliable operation
ABSOLUTE MAXIMUM RATINGS(Ta=25℃)
SYMBOL
PARAMETER
RATING
UNIT
Vi
DC input voltage
35
V
Io
Output current
Ptot
Power dissipation
internally limited
internally limited
TOP
Operating junction temperature
-40~125
℃
Tstg
Storage temperature
-55~150
℃
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
Rth j-c Rth j-a
Thermal Resistance, Junction to Case
Thermal Resistance,Junction to Ambient
MAX 5 65
UNIT ℃/W ℃/W
isc website:www.iscsemi.com
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isc Three Terminal Positive Voltage Regulator
·ELECTRICAL CHARACTERISTICS
Tj=25℃ (Vi= 19V, IO=0.5A, Ci= 0.33μF, CO= 0.1μF unless otherwise specified)
SYMBOL
PARAMETER
CONDITIONS
VO
Output Voltage
VO
Output Voltage
△VV Line Regulation
△Vi Load Regulation
Ib
Quiescent Current
Vin=19V; IO=500mA
IO=5 mA to 1A;Po≤15W; Vin=14.5 to 27V; 14.5V≤Vin≤30V 16V≤Vin≤22V 5.0mA≤IO≤1.0 A 250mA≤IO≤750mA
Vin=19V; IO=0.5A
△b1 Quiescent Current Change 5.0mA≤IO≤1.0A
△b2 Quiescent Current Change 14.5V≤Vin≤30V
MC7812E
MIN MAX UNIT
11.5 12.5
V
11.4 12.6
V
240 120
mV
240 120
mV
8.0 mA
0.5 mA
1.0 mA
NOTICE: ISC reserves the rights to make changes of the content herein the datasheet at any time without notification. The information contained herein is presented only as a guide for the applications of our products. ISC products are intended for usage in general electronic equipment. The products are not designed for use in equipment which require specialized quality and/or reliability, or in equipment which could have applications in hazardous environments, aerospace industry, or medical field. Please contact us if you intend our products to be used in these special applications. ISC makes no warranty or guarantee regarding the suitability of its products for any particular purpose, nor does ISC assume any liability arising from the application or use of any products, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
isc website:www.iscsemi.com
2 isc & iscsemi is registered trademark
.