MC7809A Fairchild, MC7809A Datasheet

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MC7809A

Manufacturer Part Number
MC7809A
Description
3-Terminal 1A Positive Voltage Regulator
Manufacturer
Fairchild
Datasheet
1.MC7809A.pdf (28 pages)

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Features
• Output Current up to 1A
• Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V
• Thermal Overload Protection
• Short Circuit Protection
• Output Transistor Safe Operating Area Protection
Internal Block Digram
©2001 Fairchild Semiconductor Corporation
MC78XX/LM78XX/MC78XXA
3-Terminal 1A Positive Voltage Regulator
Description
The MC78XX/LM78XX/MC78XXA series of three
terminal positive regulators are available in the
TO-220/D-PAK 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
Although designed primarily as fixed voltage regulators,
these devices can be used with external components to
obtain adjustable voltages and currents.
1. Input 2. GND 3. Output
TO-220
D-PAK
1
1
www.fairchildsemi.com
over 1A output current.
Rev. 1.0.1

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MC7809A Summary of contents

Page 1

... Output Voltages 10, 12, 15, 18, 24V • Thermal Overload Protection • Short Circuit Protection • Output Transistor Safe Operating Area Protection Internal Block Digram ©2001 Fairchild Semiconductor Corporation www.fairchildsemi.com Description The MC78XX/LM78XX/MC78XXA series of three terminal positive regulators are available in the ...

Page 2

MC78XX/LM78XX/MC78XXA Absolute Maximum Ratings Parameter Input Voltage (for 18V) O (for V = 24V) O Thermal Resistance Junction-Cases (TO-220) Thermal Resistance Junction-Air (TO-220) Operating Temperature Range Storage Temperature Range Electrical Characteristics (MC7805/LM7805) (Refer to test circuit ...

Page 3

Electrical Characteristics (MC7806) (Refer to test circuit ,0 C < T < 125 Parameter Symbol Output Voltage V O Line Regulation (Note1) Regline Load Regulation (Note1) Regload Quiescent Current I Q Quiescent Current Change I Output Voltage ...

Page 4

MC78XX/LM78XX/MC78XXA Electrical Characteristics (MC7808) (Refer to test circuit ,0 C < T < 125 Parameter Symbol Output Voltage Line Regulation (Note1) Regline Load Regulation (Note1) Regload Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage ...

Page 5

Electrical Characteristics (MC7809) (Refer to test circuit ,0 C < T < 125 Parameter Symbol Output Voltage V O Line Regulation (Note1) Regline Load Regulation (Note1) Regload Quiescent Current I Q Quiescent Current Change I Output Voltage ...

Page 6

MC78XX/LM78XX/MC78XXA Electrical Characteristics (MC7810) (Refer to test circuit ,0 C< T < 125 Parameter Symbol Output Voltage V O Line Regulation (Note1) Regline Load Regulation (Note1) Regload Quiescent Current I Q Quiescent Current Change I Output Voltage ...

Page 7

MC78XX/LM78XX/MC78XXA Electrical Characteristics (MC7812) (Refer to test circuit ,0 C < T < 125 Parameter Symbol Output Voltage V Line Regulation (Note1) Regline Load Regulation (Note1) Regload T Quiescent Current Quiescent Current Change Output Voltage Drift V ...

Page 8

Electrical Characteristics (MC7815) (Refer to test circuit ,0 C < T < 125 Parameter Symbol Output Voltage Line Regulation (Note1) Regline Load Regulation (Note1) Regload Quiescent Current Quiescent Current Change Output Voltage Drift V Output Noise Voltage ...

Page 9

MC78XX/LM78XX/MC78XXA Electrical Characteristics (MC7818) (Refer to test circuit ,0 C < T < 125 Parameter Symbol Output Voltage V Line Regulation (Note1) Regline Load Regulation (Note1) Regload T Quiescent Current I Q Quiescent Current Change I Output ...

Page 10

MC78XX/LM78XX/MC78XXA Electrical Characteristics (MC7824) (Refer to test circuit ,0 C < T < 125 Parameter Symbol Output Voltage Line Regulation (Note1) Regline Load Regulation (Note1) Regload T Quiescent Current Quiescent Current Change Output Voltage Drift V Output ...

Page 11

MC78XX/LM78XX/MC78XXA Electrical Characteristics (MC7805A) (Refer to the test circuits < Parameter Symbol Output Voltage V Line Regulation (Note1) Regline Load Regulation (Note1) Regload Quiescent Current I Q Quiescent Current I Change Output Voltage Drift V/ T ...

Page 12

Electrical Characteristics (MC7806A) (Refer to the test circuits < Parameter Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short ...

Page 13

MC78XX/LM78XX/MC78XXA Electrical Characteristics (MC7808A) (Refer to the test circuits < T < 125 Parameter Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection ...

Page 14

... Electrical Characteristics (MC7809A) (Refer to the test circuits < Parameter Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current Note: 1 ...

Page 15

MC78XX/LM78XX/MC78XXA Electrical Characteristics (MC7810A) (Refer to the test circuits < T < 125 Parameter Symbol Output Voltage Line Regulation (Note1) Regline Load Regulation (Note1) Regload Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise ...

Page 16

MC78XX/LM78XX/MC78XXA Electrical Characteristics (MC7812A) (Refer to the test circuits < Parameter Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance ...

Page 17

Electrical Characteristics (MC7815A) (Refer to the test circuits < Parameter Symbol Output Voltage Line Regulation (Note1) Regline Load Regulation (Note1) Regload Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage ...

Page 18

MC78XX/LM78XX/MC78XXA Electrical Characteristics (MC7818A) (Refer to the test circuits < Parameter Symbol Output Voltage Line Regulation (Note1) Regline Load Regulation (Note1) Regload Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout ...

Page 19

Electrical Characteristics (MC7824A) (Refer to the test circuits < Parameter Symbol Output Voltage Line Regulation (Note1) Regline Load Regulation (Note1) Regload Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage ...

Page 20

MC78XX/LM78XX/MC78XXA Typical Perfomance Characteristics I Figure 1. Quiescent Current Figure 3. Output Voltage 20 Figure 2. Peak Output Current Figure 4. Quiescent Current ...

Page 21

Typical Applications Input Input Input MC78XX/LM78XX Figure 5. DC Parameters MC78XX/LM78XX Figure 6. Load Regulation MC78XX/LM78XX Figure 7. Ripple Rejection Input MC78XX/LM78XX Figure 8. Fixed Output Regulator MC78XX/LM78XX/MC78XXA Output Output Output Output 21 ...

Page 22

MC78XX/LM78XX/MC78XXA Notes: (1) To specify an output voltage. substitute voltage value for "XX." A common ground is required between the input and the Output voltage. The input voltage must remain typically 2.0V above the output voltage even during the low ...

Page 23

Input MC78XX/LM78XX Figure 12. High Current Voltage Regulator Input Figure 13. High Output Current with Short Circuit Protection MC78XX/LM78XX LM741 Figure 14. Tracking Voltage Regulator MC78XX/LM78XX/MC78XXA Output MC78XX/LM78XX Output 23 ...

Page 24

MC78XX/LM78XX/MC78XXA Input Input 24 MC7815 MC7915 Figure 15. Split Power Supply ( ±15V-1A) MC78XX/LM78XX Figure 16. Negative Output Voltage Circuit MC78XX/LM78XX Figure 17. Switching Regulator Output Output ...

Page 25

Mechanical Dimensions Package 9.90 0.20 (8.70) ø3.60 0.10 1.27 0.10 2.54TYP [2.54 ] 0.20 10.00 0.20 TO-220 1.52 0.10 0.80 0.10 +0.10 0.50 –0.05 2.54TYP [2.54 ] 0.20 MC78XX/LM78XX/MC78XXA 4.50 0.20 +0.10 1.30 –0.05 2.40 0.20 25 ...

Page 26

MC78XX/LM78XX/MC78XXA Mechancal Dimensions Package 6.60 0.20 5.34 0.30 (0.50) (4.34) MAX0.96 2.30TYP [2.30 0.20] 26 (Continued) D-PAK (0.50) 0.76 0.10 2.30TYP [2.30 0.20] 6.60 0.20 (5.34) (5.04) (1.50) (2XR0.25) 2.30 0.10 0.50 0.10 0.50 0.10 1.02 0.20 2.30 0.20 0.76 ...

Page 27

... Output Voltage Tolerance MC7805CT MC7806CT MC7808CT MC7809CT MC7810CT MC7812CT MC7815CT MC7818CT MC7824CT MC7805CDT MC7806CDT MC7808CDT MC7809CDT MC7810CDT MC7812CDT MC7805ACT MC7806ACT MC7808ACT MC7809ACT MC7810ACT MC7812ACT MC7815ACT MC7818ACT MC7824ACT Package TO-220 ±4% Package TO-220 ±4% D-PAK ±2% TO-220 MC78XX/LM78XX/MC78XXA Operating Temperature 125 C Operating Temperature ...

Page 28

... DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1 ...

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