MAXIMUM RATINGS (T A = 25 C, unless otherwise noted.) STANDARD APPLICATION

Transcription

1 These voltage regulators are monolithic integrated circuits designed as fixedvoltage regulators for a wide variety of applications including local, oncard regulation. These regulators employ internal current limiting, thermal shutdown, and safearea compensation. With adequate heatsinking they can deliver output currents in excess of 1.0 A. Although designed primarily as a fixed voltage regulator, these devices can be used with external components to obtain adjustable voltages and currents. Output Current in Excess of 1.0 A No External Components Required Internal Thermal Overload Protection Internal Short Circuit Current Limiting Output Transistor SafeArea Compensation Output Voltage Offered in 2% and 4% Tolerance Available in Surface Mount D 2 PAK, DPAK and Standard 3Lead Transistor Packages MAXIMUM RATINGS (T A = 25 C, unless otherwise noted.) Rating Symbol Value Unit Input Voltage ( V) V I 35 Vdc Input Voltage (24 V) 40 Power Dissipation Case 221A (TO220) T A = 25 C P D Internally W Limited Thermal Resistance, JunctiontoAmbient R θja 65 C/W Thermal Resistance, JunctiontoCase R θjc 5.0 C/W Case 936 (D 2 PAK) T A = 25 C P D Internally W Limited Thermal Resistance, JunctiontoAmbient R θja See C/W Figure 14 Thermal Resistance, JunctiontoCase R θja 5.0 C/W Case 369A (DPAK) T A = 25 C P D Internally W Limited Thermal Resistance, JunctiontoAmbient R θja 92 C/W Thermal Resistance, JunctiontoCase R θjc 5.0 C/W Storage Junction Temperature Range T stg 65 to +150 Operating Junction Temperature T J +150 C NOTE: ESD data available upon request. C TO220 T SUFFIX CASE 221A Heatsink surface connected to Pin 2. 1 D 2 PAK D2T SUFFIX CASE 936 Pin 1. Input 2. Ground 3. Output 3 Heatsink surface (shown as terminal 4 in case outline drawing) is connected to Pin 2. 1 µ 3 STANDARD APPLICATION MC78XX DPAK DT SUFFIX CASE 369A A common ground is required between the input and the output voltages. The input voltage must remain typically 2.0 V above the output voltage even during the low point on the input ripple voltage. XX, These two digits of the type number indicate nominal voltage. * C in is required if regulator is located an appreciable distance from power supply filter. ** C O is not needed for stability; however, it does improve transient response. Values of less than 0.1 µf could cause instability. ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 16 of this data sheet. DEVICE MARKING INFORMATION See general marking information in the device marking section on page 18 of this data sheet. Semiconductor Components Industries, LLC, 2002 April, 2002 Rev Publication Order Number: MC7800/D

2 This device contains 22 active transistors. Figure 1. Representative Schematic Diagram 2

3 ELECTRICAL CHARACTERISTICS (V in = 10 V, I O = 500 ma, T J = T low to T high [Note 1], unless otherwise noted.) MC7805B, NCV7805 MC7805C/LM340T5 Output Voltage (T J = 25 C) V O Vdc Output Voltage (5.0 ma I O 1.0 A, P D V O 15 W) 7.0 Vdc V in 20 Vdc Vdc V in 20 Vdc Vdc Line Regulation (Note 2) Reg line mv 7.5 Vdc V in 20 Vdc, 1.0 A Vdc V in 12 Vdc Load Regulation (Note 2) Reg load mv 5.0 ma I O 1.0 A ma I O 1.5 A (T A = 25 C) Quiescent Current I B ma 7.0 Vdc V in 25 Vdc ma I O 1.0 A (T A = 25 C) Ripple Rejection RR db 8.0 Vdc V in 18 Vdc, f = 120 Hz Dropout Voltage (I O = 1.0 A, T J = 25 C) V I V O Vdc Output Noise Voltage (T A = 25 C) V n µv/v O Output Resistance f = 1.0 khz r O mω Short Circuit Current Limit (T A = 25 C) I SC A Peak Output Current (T J = 25 C) I max A Average Temperature Coefficient of Output Voltage TCV O mv/ C ELECTRICAL CHARACTERISTICS (V in = 10 V, I O = 1.0 A, T J = T low to T high [Note 1], unless otherwise noted.) MC7805AB/MC7805AC/LM340AT5 Characteristic Symbol Min Typ Max Unit Output Voltage (T J = 25 C) V O Vdc Output Voltage (5.0 ma I O 1.0 A, P D 15 W) V O Vdc 7.5 Vdc V in 20 Vdc Line Regulation (Note 2) Reg line mv 7.5 Vdc V in 25 Vdc, I O = 500 ma Vdc V in 12 Vdc, I O = 1.0 A Vdc V in 12 Vdc, I O = 1.0 A, T J = 25 C Vdc V in 20 Vdc, I O = 1.0 A, T J = 25 C Load Regulation (Note 2) Reg load mv 5.0 ma I O 1.5 A, T J = 25 C ma I O 1.0 A ma I O 750 ma Quiescent Current I B ma 8.0 Vdc V in 25 Vdc, I O = 500 ma Vdc V in 20 Vdc, T J = 25 C ma I O 1.0 A T low =0 C for MC78XXAC, C, LM340ATXX, LM340TXX T high = +125 C for MC78XXAC, C, LM340ATXX, LM340TXX, NCV7805 = 40 C for MC78XXB, MC78XXAB, NCV 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. 3

4 ELECTRICAL CHARACTERISTICS (continued) (V in = 10 V, I O = 1.0 A, T J = T low to T high [Note 1], unless otherwise noted.) MC7805AB/MC7805AC/LM340AT5 Characteristic Symbol Min Typ Max Unit Ripple Rejection RR db 8.0 Vdc V in 18 Vdc, f = 120 Hz, I O = 500 ma Dropout Voltage (I O = 1.0 A, T J = 25 C) V I V O 2.0 Vdc Output Noise Voltage (T A = 25 C) V n 10 µv/v O Output Resistance (f = 1.0 khz) r O 0.9 mω Short Circuit Current Limit (T A = 25 C) I SC 0.2 A Peak Output Current (T J = 25 C) I max 2.2 A Average Temperature Coefficient of Output Voltage TCV O 0.3 mv/ C ELECTRICAL CHARACTERISTICS (V in = 11 V, I O = 500 ma, T J = T low to T high [Note 1], unless otherwise noted.) MC7806B MC7806C Output Voltage (T J = 25 C) V O Vdc Output Voltage (5.0 ma I O 1.0 A, P D 15 W) V O Vdc 8.0 Vdc V in 21 Vdc Vdc V in 21 Vdc Line Regulation, T J = 25 C (Note 2) Reg line mv 8.0 Vdc V in 25 Vdc Vdc V in 13 Vdc Load Regulation, T J = 25 C (Note 2) Reg load mv 5.0 ma I O 1.5 A Quiescent Current (T J = 25 C) I B ma 8.0 Vdc V in 25 Vdc ma I O 1.0 A Ripple Rejection RR db 9.0 Vdc V in 19 Vdc, f = 120 Hz Dropout Voltage (I O = 1.0 A, T J = 25 C) V I V O Vdc Output Noise Voltage (T A = 25 C) V n µv/v O Output Resistance f = 1.0 khz r O mω Short Circuit Current Limit (T A = 25 C) I SC A Peak Output Current (T J = 25 C) I max A Average Temperature Coefficient of Output Voltage TCV O mv/ C 1. T low =0 C for MC78XXAC, C, LM340ATXX, LM340TXX T high = +125 C for MC78XXAC, C, LM340ATXX, LM340TXX, NCV7805 = 40 C for MC78XXB, MC78XXAB, NCV 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. 4

5 ELECTRICAL CHARACTERISTICS (V in = 11 V, I O = 1.0 A, T J = T low to T high [Note 1], unless otherwise noted.) MC7806AC Characteristic Symbol Min Typ Max Unit Output Voltage (T J = 25 C) V O Vdc Output Voltage (5.0 ma I O 1.0 A, P D 15 W) V O Vdc 8.6 Vdc V in 21 Vdc Line Regulation (Note 2) Reg line mv 8.6 Vdc V in 25 Vdc, I O = 500 ma Vdc V in 13 Vdc, I O = 1.0 A Load Regulation (Note 2) Reg load mv 5.0 ma I O 1.5 A, T J = 25 C ma I O 1.0 A ma I O 750 ma Quiescent Current I B ma 9.0 Vdc V in 25 Vdc, I O = 500 ma Vdc V in 21 Vdc, I O = 1.0 A, T J = 25 C ma I O 1.0 A 0.5 Ripple Rejection RR db 9.0 Vdc V in 19 Vdc, f = 120 Hz, I O = 500 ma Dropout Voltage (I O = 1.0 A, T J = 25 C) V I V O 2.0 Vdc Output Noise Voltage (T A = 25 C) V n 10 µv/v O Output Resistance (f = 1.0 khz) r O 0.9 mω Short Circuit Current Limit (T A = 25 C) I SC 0.2 A Peak Output Current (T J = 25 C) I max 2.2 A Average Temperature Coefficient of Output Voltage TCV O 0.3 mv/ C ELECTRICAL CHARACTERISTICS (V in = 14 V, I O = 500 ma, T J = T low to T high [Note 1], unless otherwise noted.) MC7808B MC7808C Output Voltage (T J = 25 C) V O Vdc Output Voltage (5.0 ma I O 1.0 A, P D 15 W) V O Vdc 10.5 Vdc V in 23 Vdc Vdc V in 23 Vdc Line Regulation, T J = 25 C, (Note 2) Reg line mv 10.5 Vdc V in 25 Vdc Vdc V in 17 Vdc Load Regulation, T J = 25 C (Note 2) Reg load mv 5.0 ma I O 1.5 A Quiescent Current I B ma 10.5 Vdc V in 25 Vdc ma I O 1.0 A T low =0 C for MC78XXAC, C, LM340ATXX, LM340TXX T high = +125 C for MC78XXAC, C, LM340ATXX, LM340TXX, NCV7805 = 40 C for MC78XXB, MC78XXAB, NCV 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. 5

6 ELECTRICAL CHARACTERISTICS (continued) (V in = 14 V, I O = 500 ma, T J = T low to T high [Note 1], unless otherwise noted.) MC7808B MC7808C Ripple Rejection RR db 11.5 Vdc V in 18 Vdc, f = 120 Hz Dropout Voltage (I O = 1.0 A, T J = 25 C) V I V O Vdc Output Noise Voltage (T A = 25 C) V n µv/v O Output Resistance f = 1.0 khz r O mω Short Circuit Current Limit (T A = 25 C) I SC A Peak Output Current (T J = 25 C) I max A Average Temperature Coefficient of Output Voltage TCV O mv/ C ELECTRICAL CHARACTERISTICS (V in = 14 V, I O = 1.0 A, T J = T low to T high [Note 1], unless otherwise noted.) MC7808AB/MC7808AC Characteristic Symbol Min Typ Max Unit Output Voltage (T J = 25 C) V O Vdc Output Voltage (5.0 ma I O 1.0 A, P D 15 W) V O Vdc 10.6 Vdc V in 23 Vdc Line Regulation (Note 2) Reg line mv 10.6 Vdc V in 25 Vdc, I O = 500 ma Vdc V in 17 Vdc, I O = 1.0 A Vdc V in 23 Vdc, T J = 25 C Load Regulation (Note 2) Reg load mv 5.0 ma I O 1.5 A, T J = 25 C ma I O 1.0 A ma I O 750 ma Quiescent Current I B ma 11 Vdc V in 25 Vdc, I O = 500 ma Vdc V in 23 Vdc, I O = 1.0 A, T J = 25 C ma I O 1.0 A 0.5 Ripple Rejection RR db 11.5 Vdc V in 21.5 Vdc, f = 120 Hz, I O = 500 ma Dropout Voltage (I O = 1.0 A, T J = 25 C) V I V O 2.0 Vdc Output Noise Voltage (T A = 25 C) V n 10 µv/v O Output Resistance f = 1.0 khz r O 0.9 mω Short Circuit Current Limit (T A = 25 C) I SC 0.2 A Peak Output Current (T J = 25 C) I max 2.2 A Average Temperature Coefficient of Output Voltage TCV O 0.4 mv/ C 1. T low =0 C for MC78XXAC, C, LM340ATXX, LM340TXX T high = +125 C for MC78XXAC, C, LM340ATXX, LM340TXX, NCV7805 = 40 C for MC78XXB, MC78XXAB, NCV 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. 6

7 ELECTRICAL CHARACTERISTICS (V in = 15 V, I O = 500 ma, T J = T low to T high [Note 1], unless otherwise noted.) MC7809B MC7809C Output Voltage (T J = 25 C) V O Vdc Output Voltage (5.0 ma I O 1.0 A, P D 15 W) V O Vdc 11.5 Vdc V in 24 Vdc Line Regulation, T J = 25 C (Note 2) Reg line mv 11 Vdc V in 26 Vdc Vdc V in 17 Vdc Load Regulation, T J = 25 C (Note 2) Reg load mv 5.0 ma I O 1.5 A Quiescent Current I B ma 11.5 Vdc V in 26 Vdc ma I O 1.0 A Ripple Rejection RR db 11.5 Vdc V in 21.5 Vdc, f = 120 Hz Dropout Voltage (I O = 1.0 A, T J = 25 C) V I V O Vdc Output Noise Voltage (T A = 25 C) V n µv/v O Output Resistance f = 1.0 khz r O mω Short Circuit Current Limit (T A = 25 C) I SC A Peak Output Current (T J = 25 C) I max A Average Temperature Coefficient of Output Voltage TCV O mv/ C ELECTRICAL CHARACTERISTICS (V in = 19 V, I O = 500 ma, T J = T low to T high [Note 1], unless otherwise noted.) MC7812B MC7812C/LM340T12 Output Voltage (T J = 25 C) V O Vdc Output Voltage (5.0 ma I O 1.0 A, P D 15 W) V O Vdc 14.5 Vdc V in 27 Vdc Vdc V in 27 Vdc Line Regulation, T J = 25 C (Note 2) Reg line mv 14.5 Vdc V in 30 Vdc Vdc V in 22 Vdc Vdc V in 27 Vdc, I O = 1.0 A 48 Load Regulation, T J = 25 C (Note 2) Reg load mv 5.0 ma I O 1.5 A Quiescent Current I B ma 14.5 Vdc V in 30 Vdc, I O = 1.0 A, T J = 25 C Vdc V in 30 Vdc ma I O 1.0 A Ripple Rejection RR db 15 Vdc V in 25 Vdc, f = 120 Hz Dropout Voltage (I O = 1.0 A, T J = 25 C) V I V O Vdc 1. T low =0 C for MC78XXAC, C, LM340ATXX, LM340TXX T high = +125 C for MC78XXAC, C, LM340ATXX, LM340TXX, NCV7805 = 40 C for MC78XXB, MC78XXAB, NCV 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. 7

8 ELECTRICAL CHARACTERISTICS (continued) (V in = 19 V, I O = 500 ma, T J = T low to T high [Note 1], unless otherwise noted.) MC7812B MC7812C/LM340T12 Output Noise Voltage (T A = 25 C) V n µv/v O Output Resistance f = 1.0 khz r O mω Short Circuit Current Limit (T A = 25 C) I SC A Peak Output Current (T J = 25 C) I max A Average Temperature Coefficient of Output Voltage TCV O mv/ C ELECTRICAL CHARACTERISTICS (V in = 19 V, I O = 1.0 A, T J = T low to T high [Note 1], unless otherwise noted.) MC7812AB/MC7812AC/LM340AT12 Characteristic Symbol Min Typ Max Unit Output Voltage (T J = 25 C) V O Vdc Output Voltage (5.0 ma I O 1.0 A, P D 15 W) V O Vdc 14.8 Vdc V in 27 Vdc Line Regulation (Note 2) Reg line mv 14.8 Vdc V in 30 Vdc, I O = 500 ma Vdc V in 22 Vdc, I O = 1.0 A Vdc V in 27 Vdc, T J = 25 C Load Regulation (Note 2) Reg load mv 5.0 ma I O 1.5 A, T J = 25 C ma I O 1.0 A 25 Quiescent Current I B ma 15 Vdc V in 30 Vdc, I O = 500 ma Vdc V in 27 Vdc, T J = 25 C ma I O 1.0 A, T J = 25 C 0.5 Ripple Rejection RR db 15 Vdc V in 25 Vdc, f = 120 Hz, I O = 500 ma Dropout Voltage (I O = 1.0 A, T J = 25 C) V I V O 2.0 Vdc Output Noise Voltage (T A = 25 C) V n 10 µv/v O Output Resistance (f = 1.0 khz) r O 1.1 mω Short Circuit Current Limit (T A = 25 C) I SC 0.2 A Peak Output Current (T J = 25 C) I max 2.2 A Average Temperature Coefficient of Output Voltage TCV O 0.8 mv/ C 1. T low =0 C for MC78XXAC, C, LM340ATXX, LM340TXX T high = +125 C for MC78XXAC, C, LM340ATXX, LM340TXX, NCV7805 = 40 C for MC78XXB, MC78XXAB, NCV 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. 8

9 ELECTRICAL CHARACTERISTICS (V in = 23 V, I O = 500 ma, T J = T low to T high [Note 1], unless otherwise noted.) MC7815B MC7815C/LM340T15 Output Voltage (T J = 25 C) V O Vdc Output Voltage (5.0 ma I O 1.0 A, P D 15 W) V O Vdc 17.5 Vdc V in 30 Vdc Vdc V in 30 Vdc Line Regulation, T J = 25 C (Note 2) Reg line mv 17.9 Vdc V in 30 Vdc Vdc V in 26 Vdc Load Regulation, T J = 25 C (Note 2) Reg load mv 5.0 ma I O 1.5 A Quiescent Current I B ma 17.5 Vdc V in 30 Vdc Vdc V in 30 Vdc, I O = 1.0 A, T J = 25 C ma I O 1.0 A Ripple Rejection RR db 18.5 Vdc V in 28.5 Vdc, f = 120 Hz Dropout Voltage (I O = 1.0 A, T J = 25 C) V I V O Vdc Output Noise Voltage (T A = 25 C) V n µv/v O Output Resistance f = 1.0 khz r O mω Short Circuit Current Limit (T A = 25 C) I SC A Peak Output Current (T J = 25 C) I max A Average Temperature Coefficient of Output Voltage TCV O mv/ C ELECTRICAL CHARACTERISTICS (V in = 23 V, I O = 1.0 A, T J = T low to T high [Note 1], unless otherwise noted.) MC7815AB/MC7815AC/LM340AT15 Characteristic Symbol Min Typ Max Unit Output Voltage (T J = 25 C) V O Vdc Output Voltage (5.0 ma I O 1.0 A, P D 15 W) V O Vdc 17.9 Vdc V in 30 Vdc Line Regulation (Note 2) Reg line mv 17.9 Vdc V in 30 Vdc, I O = 500 ma Vdc V in 26 Vdc Vdc V in 30 Vdc, I O = 1.0 A, T J = 25 C Load Regulation (Note 2) Reg load mv 5.0 ma I O 1.5 A, T J = 25 C ma I O 1.0 A ma I O 750 ma Quiescent Current I B ma 17.5 Vdc V in 30 Vdc, I O = 500 ma Vdc V in 30 Vdc, I O = 1.0 A, T J = 25 C ma I O 1.0 A T low =0 C for MC78XXAC, C, LM340ATXX, LM340TXX T high = +125 C for MC78XXAC, C, LM340ATXX, LM340TXX, NCV7805 = 40 C for MC78XXB, MC78XXAB, NCV 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. 9

10 ELECTRICAL CHARACTERISTICS (continued) (V in = 23 V, I O = 1.0 A, T J = T low to T high [Note 1], unless otherwise noted.) MC7815AB/MC7815AC/LM340AT15 Characteristic Symbol Min Typ Max Unit Ripple Rejection RR db 18.5 Vdc V in 28.5 Vdc, f = 120 Hz, I O = 500 ma Dropout Voltage (I O = 1.0 A, T J = 25 C) V I V O 2.0 Vdc Output Noise Voltage (T A = 25 C) V n 10 µv/v O Output Resistance f = 1.0 khz r O 1.2 mω Short Circuit Current Limit (T A = 25 C) I SC 0.2 A Peak Output Current (T J = 25 C) I max 2.2 A Average Temperature Coefficient of Output Voltage TCV O 1.0 mv/ C ELECTRICAL CHARACTERISTICS (V in = 27 V, I O = 500 ma, T J = T low to T high [Note 1], unless otherwise noted.) MC7818B MC7818C Output Voltage (T J = 25 C) V O Vdc Output Voltage (5.0 ma I O 1.0 A, P D 15 W) V O Vdc 21 Vdc V in 33 Vdc Vdc V in 33 Vdc Line Regulation, (Note 2) Reg line mv 21 Vdc V in 33 Vdc Vdc V in 30 Vdc Load Regulation, (Note 2) Reg load mv 5.0 ma I O 1.5 A Quiescent Current I B ma 21 Vdc V in 33 Vdc ma I O 1.0 A Ripple Rejection RR db 22 Vdc V in 33 Vdc, f = 120 Hz Dropout Voltage (I O = 1.0 A, T J = 25 C) V ii V O Vdc Output Noise Voltage (T A = 25 C) V n µv/v O Output Resistance f = 1.0 khz r O mω Short Circuit Current Limit (T A = 25 C) I SC A Peak Output Current (T J = 25 C) I max A Average Temperature Coefficient of Output Voltage TCV O mv/ C 1. T low =0 C for MC78XXAC, C, LM340ATXX, LM340TXX T high = +125 C for MC78XXAC, C, LM340ATXX, LM340TXX, NCV7805 = 40 C for MC78XXB, MC78XXAB, NCV 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. 10

11 ELECTRICAL CHARACTERISTICS (V in = 27 V, I O = 1.0 A, T J = T low to T high [Note 1], unless otherwise noted.) MC7818AC Characteristic Symbol Min Typ Max Unit Output Voltage (T J = 25 C) V O Vdc Output Voltage (5.0 ma I O 1.0 A, P D 15 W) V O Vdc 21 Vdc V in 33 Vdc Line Regulation (Note 2) Reg line mv 21 Vdc V in 33 Vdc, I O = 500 ma Vdc V in 30 Vdc, I O = 1.0 A Vdc V in 30 Vdc, I O = 1.0 A, T J = 25 C Vdc V in 33 Vdc, I O = 1.0 A, T J = 25 C Load Regulation (Note 2) Reg load mv 5.0 ma I O 1.5 A, T J = 25 C ma I O 1.0 A ma I O 750 ma Quiescent Current I B ma 21 Vdc V in 33 Vdc, I O = 500 ma Vdc V in 30 Vdc, T J = 25 C ma I O 1.0 A 0.5 Ripple Rejection RR db 22 Vdc V in 32 Vdc, f = 120 Hz, I O = 500 ma Dropout Voltage (I O = 1.0 A, T J = 25 C) V I V O 2.0 Vdc Output Noise Voltage (T A = 25 C) V n 10 µv/v O Output Resistance f = 1.0 khz r O 1.3 mω Short Circuit Current Limit (T A = 25 C) I SC 0.2 A Peak Output Current (T J = 25 C) I max 2.2 A Average Temperature Coefficient of Output Voltage TCV O 1.5 mv/ C ELECTRICAL CHARACTERISTICS (V in = 33 V, I O = 500 ma, T J = T low to T high [Note 1], unless otherwise noted.) MC7824B MC7824C Output Voltage (T J = 25 C) V O Vdc Output Voltage (5.0 ma I O 1.0 A, P D 15 W) V O Vdc 27 Vdc V in 38 Vdc Vdc V in 38 Vdc Line Regulation, (Note 2) Reg line mv 27 Vdc V in 38 Vdc Vdc V in 36 Vdc Load Regulation, (Note 2) Reg load mv 5.0 ma I O 1.5 A Quiescent Current I B ma 27 Vdc V in 38 Vdc ma I O 1.0 A T low =0 C for MC78XXAC, C, LM340ATXX, LM340TXX T high = +125 C for MC78XXAC, C, LM340ATXX, LM340TXX, NCV7805 = 40 C for MC78XXB, MC78XXAB, NCV 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. 11

12 ELECTRICAL CHARACTERISTICS (continued) (V in = 33 V, I O = 500 ma, T J = T low to T high [Note 1], unless otherwise noted.) MC7824B MC7824C Ripple Rejection RR db 28 Vdc V in 38 Vdc, f = 120 Hz Dropout Voltage (I O = 1.0 A, T J = 25 C) V I V O Vdc Output Noise Voltage (T A = 25 C) V n µv/v O Output Resistance f = 1.0 khz r O mω Short Circuit Current Limit (T A = 25 C) I SC A Peak Output Current (T J = 25 C) I max A Average Temperature Coefficient of Output Voltage TCV O mv/ C ELECTRICAL CHARACTERISTICS (V in = 33 V, I O = 1.0 A, T J = T low to T high [Note 1], unless otherwise noted.) MC7824AC Characteristic Symbol Min Typ Max Unit Output Voltage (T J = 25 C) V O Vdc Output Voltage (5.0 ma I O 1.0 A, P D 15 W) V O Vdc 27.3 Vdc V in 38 Vdc Line Regulation (Note 2) Reg line mv 27 Vdc V in 38 Vdc, I O = 500 ma Vdc V in 36 Vdc, I O = 1.0 A Vdc V in 36 Vdc, T J = 25 C Vdc V in 38 Vdc, I O = 1.0 A, T J = 25 C Load Regulation (Note 2) Reg load mv 5.0 ma I O 1.5 A, T J = 25 C ma I O 1.0 A ma I O 750 ma Quiescent Current I B ma 27.3 Vdc V in 38 Vdc, I O = 500 ma Vdc V in 38 Vdc, T J = 25 C ma I O 1.0 A 0.5 Ripple Rejection RR db 28 Vdc V in 38 Vdc, f = 120 Hz, I O = 500 ma Dropout Voltage (I O = 1.0 A, T J = 25 C) V I V O 2.0 Vdc Output Noise Voltage (T A = 25 C) V n 10 µv/v O Output Resistance (f = 1.0 khz) r O 1.4 mω Short Circuit Current Limit (T A = 25 C) I SC 0.2 A Peak Output Current (T J = 25 C) I max 2.2 A Average Temperature Coefficient of Output Voltage TCV O 2.0 mv/ C 1. T low =0 C for MC78XXAC, C, LM340ATXX, LM340TXX T high = +125 C for MC78XXAC, C, LM340ATXX, LM340TXX, NCV7805 = 40 C for MC78XXB, MC78XXAB, NCV 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. 12

13 MC7800, MC7800A, LM340, LM340A Series, NCV7805 C C C C C Figure 2. Peak Output Current as a Function of Input/Output Differential Voltage (MC78XXC, AC, B) Figure 3. Ripple Rejection as a Function of Output Voltages (MC78XXC, AC, B) Figure 4. Ripple Rejection as a Function of Frequency (MC78XXC, AC, B) Figure 5. Output Voltage as a Function of Junction Temperature (MC7805C, AC, B) Ω µ Figure 6. Output Impedance as a Function of Output Voltage (MC78XXC, AC, B) Figure 7. Quiescent Current as a Function of Temperature (MC78XXC, AC, B) 13

14 APPLICATIONS INFORMATION Design Considerations The MC7800 Series of fixed voltage regulators are designed with Thermal Overload Protection that shuts down the circuit when subjected to an excessive power overload condition, Internal Short Circuit Protection that limits the maximum current the circuit will pass, and Output Transistor SafeArea Compensation that reduces the output short circuit current as the voltage across the pass transistor is increased. In many low current applications, compensation capacitors are not required. However, it is recommended that the regulator input be bypassed with a capacitor if the regulator is connected to the power supply filter with long wire lengths, or if the output load capacitance is large. An input bypass capacitor should be selected to provide good highfrequency characteristics to insure stable operation under all load conditions. A 0.33 µf or larger tantalum, mylar, or other capacitor having low internal impedance at high frequencies should be chosen. The bypass capacitor should be mounted with the shortest possible leads directly across the regulators input terminals. Normally good construction techniques should be used to minimize ground loops and lead resistance drops since the regulator has no external sense lead. µ MC7805 µ MC7805 µ Ω Figure 8. Current Regulator Figure 9. Adjustable Output Regulator µ µ µ µ MC78XX µ µ µ MC78XX Figure 10. Current Boost Regulator Figure 11. Short Circuit Protection 14

15 θ θ θ θ θ Figure 12. Worst Case Power Dissipation versus Ambient Temperature (Case 221A) Figure 13. Input Output Differential as a Function of Junction Temperature (MC78XXC, AC, B) θ θ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ Figure 14. D 2 PAK Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length θ θ ÎÎÎÎ ÎÎÎÎ Figure 15. DPAK Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length 15

16 DEFINITIONS Line Regulation The change in output voltage for a change in the input voltage. The measurement is made under conditions of low dissipation or by using pulse techniques such that the average chip temperature is not significantly affected. Load Regulation The change in output voltage for a change in load current at constant chip temperature. Maximum Power Dissipation The maximum total device dissipation for which the regulator will operate within specifications. Quiescent Current That part of the input current that is not delivered to the load. Output Noise Voltage The rms ac voltage at the output, with constant load and no input ripple, measured over a specified frequency range. Long Term Stability Output voltage stability under accelerated life test conditions with the maximum rated voltage listed in the devices electrical characteristics and maximum power dissipation. ORDERING INFORMATION Shipping Device Output Voltage Temperature Range Package Rails (No Suffix) Tape & Reel (R4 Suffix) MC7805.2CT TO220 MC7805ACD2T/R4 MC7805ACT TO Units/Rail MC7805CD2T/R4 T J = 0 to +125 C MC7805CT TO220 MC7805CDT/RK DPAK 75 Units/Rail 2500 Units/Reel LM340T5 LM340AT5 50V 5.0 TO220 MC7805BD2T/R4 50 Units/Rail MC7805BT NCV7805BT* MC7805BDT/RK T J = 40 to +125 C TO220 DPAK 75 Units/Rail 2500 Units/Reel MC7805ABD2T/R4 MC7805ABT TO220 MC7806ACT MC7806CT MC7806BD2T/R4 MC7806BT MC7808ACT MC7808CD2T/R4 MC7808CT 60V 6.0 T J = 0 to +125 C TO220 T J = 40 to +125 C T J = 0 to +125 C 50 Units/Rail TO220 TO220 MC7808CDT/RK/T5 DPAK 75 Units/Rail 2500 Units/Reel MC7808BD2T/R V MC7808BT TO Units/Rail MC7808BDT/RK T J = 40 0 to +125 C DPAK 75 Units/Rail 2500 Units/Reel MC7808ABD2T/R4 50 Units/Rail MC7808ABT TO220 *NCV7805: T low = 40 C, T high = +125 C. Guaranteed by design. NCV prefix is for automotive and other applications requiring site and change control. 16

17 ORDERING INFORMATION (continued) Shipping Device Output Voltage Temperature Range Package Rails (No Suffix) Tape & Reel (R4 Suffix) MC7809ACT TO220 MC7809CD2T/R4 T J = 0 to +125 C 90V 9.0 MC7809CT TO220 MC7809BT T J = 40 to +125 C 50 Units/Rail MC7812ACD2T/R4 MC7812ACT TO220 MC7812CD2T/R4 MC7812CT T J = 0 to +125 C TO220 MC7812CDT/RK DPAK 75 Units/Rail 2500 Units/Reel LM340T12 LM340AT12 MC7812BD2T/R4 12 V TO Units/Rail MC7812BT TO220 MC7812BDT/RK T J = 40 0 to +125 C DPAK 75 Units/Rail 2500 Units/Reel MC7812ABD2T/R4 MC7812ABT TO220 MC7815ACD2T/R4 MC7815ACT MC7815CD2T/R4 MC7815CT LM340T15 LM340AT15 MC7815CDT/RK MC7815BD2T/R4 MC7815BT 15 V T J = 0 to +125 C TO Units/Rail TO220 DPAK 75 Units/Rail 2500 Units/Reel TO Units/Rail MC7815BDT/RK T J = 40 0 to +125 C DPAK 75 Units/Rail 2500 Units/Reel MC7815ABD2T/R4 MC7815ABT TO220 MC7818ACT TO220 MC7818CD2T/R4 MC7818CT 18 V T J = 0 to +125 C MC7818BT T J = 40 to +125 C TO Units/Rail MC7824ACT MC7824CD2T T J = 0 to +125 C MC7824CT 24 V TO220 MC7824BD2T/R4 MC7824BT T J = 40 to +125 C TO220 17

18 MARKING DIAGRAMS TO220 T SUFFIX CASE 221A MC7800, MC7800A Series, NCV7805 LM340, LM340A Series MC 78xxXXT AWLYWW LM 340XTxx AWLYWW D2T SUFFIX CASE 936 DPAK DT SUFFIX CASE 369A MC 78xxXXD2T AWLYWW 78xxX ALYWW xx = Voltage Option XX = Appropriate Suffix Options A = Assembly Location WL, L = Wafer Lot Y = Year WW = Work Week 18

19 PACKAGE DIMENSIONS TO220 T SUFFIX CASE 221A09 ISSUE AA H Q Z L V G B N D A K F T U S R J C T D2T SUFFIX CASE ISSUE B B K F J D C A G S OPTIONAL CHAMFER H N R T E M L TERMINAL 4 U V P 19

20 PACKAGE DIMENSIONS DPAK DT SUFFIX CASE 369A13 ISSUE AB V S F B R G L A K D 2 PL J H C T E U Z ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Typical parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customer s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. PUBLICATION ORDERING INFORMATION Literature Fulfillment: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado USA Phone: or Toll Free USA/Canada Fax: or Toll Free USA/Canada ONlit@hibbertco.com N. American Technical Support: Toll Free USA/Canada JAPAN: ON Semiconductor, Japan Customer Focus Center 4321 NishiGotanda, Shinagawaku, Tokyo, Japan Phone: r14525@onsemi.com ON Semiconductor Website: For additional information, please contact your local Sales Representative. 20 MC7800/D