L7800 series

L7800 series - L7800 SERIES POSITIVE VOLTAGE REGULATORS s s s s s OUTPUT CURRENT TO 1.5A OUTPUT VOLTAGES OF 5 5.2 6 8 8.5 9 12 15 18 24V THERMAL

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1/29 February 2003 OUTPUT CURRENT TO 1.5A OUTPUT VOLTAGES OF 5; 5.2; 6; 8; 8.5; 9; 12; 15; 18; 24V THERMAL OVERLOAD PROTECTION SHORT CIRCUIT PROTECTION OUTPUT TRANSITION SOA PROTECTION DESCRIPTION The L7800 series of three-terminal positive regulators is available in TO-220, TO-220FP, TO-3 and D 2 PAK packages and several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Each type employs internal current limiting, thermal shut-down and safe 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 voltage and currents. L7800 SERIES POSITIVE VOLTAGE REGULATORS SCHEMATIC DIAGRAM TO-220 D 2 PAK TO-220FP TO-3
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L7800 SERIES 2/29 ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. THERMAL DATA SCHEMATIC DIAGRAM Symbol Parameter² Value Unit V I DC Input Voltage for V O = 5 to 18V 35 V for V O = 20, 24V 40 I O Output Current Internally Limited P tot Power Dissipation Internally Limited T stg Storage Temperature Range -65 to 150 °C T op Operating Junction Temperature Range for L7800 -55 to 150 °C for L7800C 0 to 150 Symbol Parameter D 2 PAK TO-220 TO-220FP TO-3 Unit R thj-case Thermal Resistance Junction-case Max 3554 ° C / W R thj-amb Thermal Resistance Junction-ambient Max 62.5 50 60 35 °C/W
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L7800 SERIES 3/29 CONNECTION DIAGRAM (top view) ORDERING CODES (*) Available in Tape & Reel with the suffix "-TR". TYPE TO-220 D 2 PAK (*) TO-220FP TO-3 OUTPUT VOLTAGE L7805 L7805T 5 V L7805C L7805CV L7805CD2T L7805CP L7805CT 5 V L7852C L7852CV L7852CD2T L7852CP L7852CT 5.2 V L7806 L7806T 6 V L7806C L7806CV L7806CD2T L7806CP L7806CT 6 V L7808 L7808T 8 V L7808C L7808CV L7808CD2T L7808CP L7808CT 8 V L7885C L7885CV L7885CD2T L7885CP L7885CT 8.5 V L7809C L7809CV L7809CD2T L7809CP L7809CT 9 V L7812 L7812T 12 V L7812C L7812CV L7812CD2T L7812CP L7812CT 12 V L7815 L7815T 15 V L7815C L7815CV L7815CD2T L7815CP L7815CT 15 V L7818 L7818T 18 V L7818C L7818CV L7818CD2T L7818CP L7818CT 18 V L7820 L7820T 20 V L7820C L7820CV L7820CD2T L7820CP L7820CT 20 V L7824 L7824T 24 V L7824C L7824CV L7824CD2T L7824CP L7824CT 24 V TO-220 TO-220FP TO-3 D 2 PAK
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L7800 SERIES 4/29 APPLICATION CIRCUITS TEST CIRCUITS Figure 1 : DC Parameter Figure 2 : Load Regulation
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L7800 SERIES 5/29 Figure 3 : Ripple Rejection ELECTRICAL CHARACTERISTICS OF L7805 (refer to the test circuits, T J = -55 to 150°C, V I = 10V, I O =500mA ,C I =0 .33μF,C O = 0.1 μF unless otherwise specified). (*) Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. Symbol Parameter Test Conditions Min. Typ. Max. Unit V O Output Voltage T J = 25°C 4.8 5 5.2 V V O Output Voltage I O =5mAto1A P O 15W V I = 8 to 20 V 4.65 5 5.35 V V O (*) Line Regulation V I =7to25V T J = 25°C 3 50 mV V I =8to12V T J = 25°C 1 25 V O (*) Load Regulation I O =5mAto1.5A T J = 25°C 100 mV I O = 250 to 750 mA T J = 25°C 25 I d Quiescent Current T J = 25°C 6 mA
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This note was uploaded on 08/24/2011 for the course ECE 231 taught by Professor Damodar during the Spring '10 term at IIT Kanpur.

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L7800 series - L7800 SERIES POSITIVE VOLTAGE REGULATORS s s s s s OUTPUT CURRENT TO 1.5A OUTPUT VOLTAGES OF 5 5.2 6 8 8.5 9 12 15 18 24V THERMAL

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