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| MC78xxCT Series New Product Vishay Semiconductor 3-Terminal Fixed Positive Voltage Regulators MC78xxCT TO-220AB Pin Definition 1. Input 2. Ground 3. Output (Heatsink/ tab connected to pin 2) Description These voltage regulators are monolithic integrated circuits designed as fixed-voltage regulators for a wide variety of applications including local, on-card regulation. These regulators employ internal current limiting, thermal shutdown, and safe-area compensation. With adequate heatsinking the MC78xxCT can deliver output currents in excess of 1.5 ampere. Although designed primarily as a fixed voltage regulator, these devices can be used with external components to obtain adjustable voltages with currents. Output 1 2 3 Standard Application Input MC78xx Features * Output current in excess of 1.0 ampere * No external components required * Internal thermal overload protection * Internal short-circuit current limiting * Output transistor safe-area compensation * Output voltage offered in 2% tolerance Cin 0.33F Co 0.1F Notes: A common ground is required between the input and the output voltages. The input voltage must remain typically 2.0V above the output voltage even during the low point on the input ripple voltage. xx = these two digits of the part number indicate output voltage. Cin is required if regulator is located an appreciable distance from power supply filter. Co is not needed for stability, however, it does improve transient response. Mechanical Data Case: TO-220 Package Case outline is on the back page. Internal Block Diagram Input 1 Current Generator Starting Circuit Reference Voltage Series Pass Element SOA Protection Error Amplifier Thermal Protection Output 3 GND 2 Document Number 74813 29-Nov-01 www.vishay.com 1 MC78xxCT Series Vishay Semiconductor Maximum Ratings Parameter Input Voltage Input Voltage (1) (2) (3) Ratings at 25C ambient temperature unless otherwise specified. Symbol Vin Vin RJC TJ Tstg Value 30 40 5 -20 to +150 -65 to +150 Unit V V C/W C C Thermal Resistance Operating Junction Temperature Range Storage Junction Temperature Range Notes: (1) MC7805 to MC7818 (2) MC7824 (3) Follow the derating curve (fig. 1) Electrical Characteristics - MC7805 Vin = 10V, Iout = 500mA, 0C TJ 125C, Cin = 0.33F, Cout = 0.1F; unless otherwise noted. Parameter Output Voltage Symbol Vout Conditions TJ = 25C 7V Vin 20V, 5mA Iout 1.0A, PD 15W 7V Vin < 25V 8V Vin < 13V 10mA Iout < 1.5A 250mA Iout < 750mA Iout = 0, TJ = 25C 7V Vin 25V 5mA Iout 1.0A 10Hz f100KHz,TJ =25C f = 120Hz Iout = 1.0A, TJ = 25C f = 1KHz TJ = 25C TJ = 25C Iout = 5mA,0C TJ 125C Min. 4.90 4.85 - - - - -- -- -- -- 62 -- -- -- -- -- Typ. 5 -- 3 1 15 5 4.2 -- -- 40 78 2 17 750 1.5 -1.1 Max. 5.10 5.15 100 50 100 50 8 1.3 0.5 -- -- -- -- -- -- -- V Unit Line Regulation (TJ = 25C) Load Regulation (TJ = 25C) Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Ratio Dropout Voltage Output Resistance Output Short Circuit Current Peak Output Current Temperature Coefficient of Output Voltage REG line REG load Iq Iq Vn RR Vdrop Rout Ios Io peak Vout/TJ mV mV mA mA V dB V m mA A mV/C www.vishay.com 2 Document Number 74813 29-Nov-01 MC78xxCT Series Vishay Semiconductor Electrical Characteristics - MC7806 Vin = 11V, Iout = 500mA, 0C TJ 125C, Cin = 0.33F, Cout = 0.1F; unless otherwise noted. Parameter Output Voltage Line Regulation (TJ = 25C) Load Regulation (TJ = 25C) Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Ratio Dropout Voltage Output Resistance Output Short Circuit Current Peak Output Current Temperature Coefficient of Output Voltage Symbol Vout Conditions TJ = 25C 8V Vin 21V, 5mA Iout 1.0A, PD 15W 8V Vin < 25V 9V Vin < 13V 10mA Iout < 1.5A 250mA Iout < 750mA Iout = 0, TJ = 25C 8V Vin 25V 5mA Iout 1.0A 10Hz f100KHz,TA =25C f = 120Hz, 9V Vin 19V Iout = 1.0A, TJ = 25C f = 1KHz TJ = 25C TJ = 25C Iout = 5mA,0C TJ 125C Min. 5.88 5.83 - - - - -- -- -- -- 59 -- -- -- -- -- Typ. 6.0 -- 5 1.5 14 4 4.3 -- -- 45 75 2 19 550 1.5 -0.8 Max. 6.12 6.17 120 60 120 60 8.0 1.3 0.5 -- -- -- -- -- -- -- V Unit REG line REG load Iq Iq Vn RR Vdrop Rout Ios Io peak Vout/TJ mV mV mA mA V dB V m mA A mV/C Electrical Characteristics - MC7808 Vin = 14V, Iout = 500mA, 0C TJ 125C, Cin = 0.33F, Cout = 0.1F; unless otherwise noted. Parameter Output Voltage Line Regulation (TJ = 25C) Load Regulation (TJ = 25C) Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Ratio Dropout Voltage Output Resistance Output Short Circuit Current Peak Output Current Temperature Coefficient of Output Voltage Symbol Vout Conditions TJ = 25C 10.5V Vin 23V, 5mA Iout 1.0A, PD 15W 10.5V Vin < 25V 11V Vin < 15V 10mA Iout < 1.5A 250mA Iout < 750mA Iout = 0, TJ = 25C 10.5V Vin 25V 5mA Iout 1.0A 10Hz f100KHz,TJ =25C f = 120Hz Iout = 1.0A, TJ = 25C f = 1KHz TJ = 25C TJ = 25C Iout = 5mA,0C TJ 125C Min. 7.84 7.74 - - - - -- -- -- -- 56 -- -- -- -- -- Typ. 8.0 -- 6 2 12 4 4.3 -- -- 52 72 2 16 450 1.5 -0.8 Max. 8.16 8.26 160 80 160 80 8.0 1 0.5 -- -- -- -- -- -- -- V Unit REG line REG load Iq Iq Vn RR Vdrop Rout Ios Io peak Vout/TJ mV mV mA mA V dB V m mA A mV/C Document Number 74813 29-Nov-01 www.vishay.com 3 MC78xxCT Series Vishay Semiconductor Electrical Characteristics - MC7809 Vin = 15V, Iout = 500mA, 0C TJ 125C, Cin = 0.33F, Cout = 0.1F; unless otherwise noted. Parameter Output Voltage Line Regulation (TJ = 25C) Load Regulation (TJ = 25C) Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Ratio Dropout Voltage Output Resistance Output Short Circuit Current Peak Output Current Temperature Coefficient of Output Voltage Symbol Vout Conditions TJ = 25C 11.5V Vin 24V, 5mA Iout 1.0A, PD 15W 11.5V Vin < 27V 12V Vin < 16V 5mA Iout < 1.5A 250mA Iout < 750mA Iout = 0, TJ = 25C 11.5V Vin 27V 5mA Iout 1.0A 10Hz f100KHz,TJ =25C f = 120Hz,12V Vin 22V Iout = 1.0A, TJ = 25C f = 1KHz TJ = 25C TJ = 25C Iout = 5mA,0C TJ 125C Min. 8.82 8.77 - - - - -- -- -- -- 55 -- -- -- -- -- Typ. 9 -- 6 2 12 4 4.3 -- -- 52 72 2 16 450 1.5 -1 Max. 9.18 9.23 160 80 160 80 8 1 0.5 -- -- -- -- -- -- -- V Unit REG line REG load Iq Iq Vn RR Vdrop Rout Ios Io peak Vout/TJ mV mV mA mA V dB V m mA A mV/C Electrical Characteristics - MC7810 Vin = 16V, Iout = 500mA, 0C TJ 125C, Cin = 0.33F, Cout = 0.1F; unless otherwise noted. Parameter Output Voltage Line Regulation (TJ = 25C) Load Regulation (TJ = 25C) Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Ratio Dropout Voltage Output Resistance Output Short Circuit Current Peak Output Current Temperature Coefficient of Output Voltage Symbol Vout Conditions TJ = 25C 12.5V Vin 25V, 5mA Iout 1.0A, PD 15W 12.5V Vin < 28V 13V Vin < 17V 10mA Iout < 1.5A 250mA Iout < 750mA Iout = 0, TJ = 25C 12.5V Vin 28V 5mA Iout 1.0A 10Hz f100KHz,TJ =25C f = 120Hz, 13V Vin 23V Iout = 1.0A, TJ = 25C f = 1KHz TJ = 25C TJ = 25C Iout = 5mA,0C TJ 125C Min. 9.8 9.75 - - - - -- -- -- -- 54 -- -- -- -- -- Typ. 10 -- 10 3 12 4 4.3 -- -- 52 72 2 16 450 1.5 -1 Max. 10.2 10.25 240 120 240 120 8 1 0.5 -- -- -- -- -- -- -- V Unit REG line REG load Iq Iq Vn RR Vdrop Rout Ios Io peak Vout/TJ mV mV mA mA V dB V m mA A mV/C www.vishay.com 4 Document Number 74813 29-Nov-01 MC78xxCT Series Vishay Semiconductor Electrical Characteristics - MC7812 Vin = 19V, Iout = 500mA, 0C TJ 125C, Cin = 0.33F, Cout = 0.1F; unless otherwise noted. Parameter Output Voltage Line Regulation (TJ = 25C) Load Regulation (TJ = 25C) Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Ratio Dropout Voltage Output Resistance Output Short Circuit Current Peak Output Current Temperature Coefficient of Output Voltage Symbol Vout Conditions TJ = 25C 14.5V Vin 27V, 5mA Iout 1.0A, PD 15W 14V Vin < 30V 15V Vin < 19V 10mA Iout < 1.5A 250mA Iout < 750mA Iout = 0, TJ = 25C 14.5V Vin 30V 5mA Iout 1.0A 10Hz f100KHz,TJ =25C f = 120Hz,15V Vin 25V Iout = 1.0A, TJ = 25C f = 1KHz TJ = 25C TJ = 25C Iout = 5mA,0C TJ 125C Min. 11.76 11.66 - - - - -- -- -- -- 55 -- -- -- -- -- Typ. 12.0 -- 10 3 12 4 4.3 -- -- 75 71 2 18 350 1.5 -1 Max. 12.24 12.34 240 120 240 120 8 1 0.5 -- -- -- -- -- -- -- V Unit REG line REG load Iq Iq Vn RR Vdrop Rout Ios Io peak Vout/TJ mV mV mA mA V dB V m mA A mV/C Electrical Characteristics - MC7815 Vin = 23V, Iout = 500mA, 0C TJ 125C, Cin = 0.33F, Cout = 0.1F; unless otherwise noted. Parameter Output Voltage Line Regulation (TJ = 25C) Load Regulation (TJ = 25C) Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Ratio Dropout Voltage Output Resistance Output Short Circuit Current Peak Output Current Temperature Coefficient of Output Voltage Symbol Vout Conditions TJ = 25C 17.5V Vin 30V, 5mA Iout 1.0A, PD 15W 17.5V Vin < 30V 13V Vin < 17V 10mA Iout < 1.5A 250mA Iout < 750mA Iout = 0, TJ = 25C 17.5V Vin 30V 5mA Iout 1.0A 10Hz f100KHz,TJ =25C f = 120Hz, 18V Vin 28V Iout = 1.0A, TJ = 25C f = 1KHz TJ = 25C TJ = 25C Iout = 5mA,0C TJ 125C Min. 14.7 14.55 - - - - -- -- -- -- 54 -- -- -- -- -- Typ. 15.0 -- 11 3 12 4 4.4 -- -- 90 70 2 19 230 1.5 -1 Max. 15.3 15.45 300 150 300 150 8 1 0.5 -- -- -- -- -- -- -- V Unit REG line REG load Iq Iq Vn RR Vdrop Rout Ios Io peak Vout/TJ mV mV mA mA V dB V m mA A mV/C Document Number 74813 29-Nov-01 www.vishay.com 5 MC78xxCT Series Vishay Semiconductor Electrical Characteristics - MC7818 Vin = 27V, Iout = 500mA, 0C TJ 125C, Cin = 0.33F, Cout = 0.1F; unless otherwise noted. Parameter Output Voltage Line Regulation (TJ = 25C) Load Regulation (TJ = 25C) Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Ratio Dropout Voltage Output Resistance Output Short Circuit Current Peak Output Current Temperature Coefficient of Output Voltage Symbol Vout Conditions TJ = 25C 21V Vin 33V, 5mA Iout 1.0A, PD 15W 21V Vin < 33V 22V Vin < 26V 10mA Iout < 1.5A 250mA Iout < 750mA Iout = 0, TJ = 25C 21V Vin 33V 5mA Iout 1.0A 10Hz f100KHz,TJ =25C f = 120Hz,21V Vin 31V Iout = 1.0A, TJ = 25C f = 1KHz TJ = 25C TJ = 25C Iout = 5mA,0C TJ 125C Min. 17.64 17.44 - - - - -- -- -- -- 53 -- -- -- -- -- Typ. 18.0 -- 15 5 12 4 4.5 -- -- 110 69 2 22 200 1.5 -1 Max. 18.36 18.56 360 180 360 180 8 1 0.5 -- -- -- -- -- -- -- V Unit REG line REG load Iq Iq Vn RR Vdrop Rout Ios Io peak Vout/TJ mV mV mA mA mV dB V m mA A mV/C Electrical Characteristics - MC7824 Vin = 33V, Iout = 500mA, 0C TJ 125C, Cin = 0.33F, Cout = 0.1F; unless otherwise noted. Parameter Output Voltage Line Regulation (TJ = 25C) Load Regulation (TJ = 25C) Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Ratio Dropout Voltage Output Resistance Output Short Circuit Current Peak Output Current Temperature Coefficient of Output Voltage Symbol Vout Conditions TJ = 25C 26V Vin 38V, 5mA Iout 1.0A, PD 15W 26V Vin < 38V 27V Vin < 32V 10mA Iout < 1.5A 250mA Iout < 750mA Iout = 0, TJ = 25C 26V Vin 38V 5mA Iout 1.0A 10Hz f100KHz,TJ =25C f = 120Hz, 26V Vin 36V Iout = 1.0A, TJ = 25C f = 1KHz TJ = 25C TJ = 25C Iout = 5mA,0C TJ 125C Min. 23.52 23.32 - - - - -- -- -- -- 50 -- -- -- -- -- Typ. 24.0 -- 18 6 12 4 4.6 -- -- 170 66 2 28 150 1.5 -1.5 Max. 24.48 24.68 480 240 480 240 8 1 0.5 -- -- -- -- -- -- -- V Unit REG line REG load Iq Iq Vn Rrej Vdrop Rout Ios Io peak Vout/TJ mV mV mA mA V dB V m mA A mV/C www.vishay.com 6 Document Number 74813 29-Nov-01 MC78xxCT Series Vishay Semiconductor Ratings and Characteristic Curves (TA = 25C unless otherwise noted) Fig. 1 - Power Dissipation vs. Ambient Temperature (MC78xxCT) 20 JC = 5C/W JA = 65C/W TJ (max) = 150C 2.5 Fig. 2 - Dropout Voltage vs. Junction Temperature VIN -- VOUT, Input - Output Voltage Differential (V) 16 Io = 1.0A 2.0 Io = 500mA Power Dissipation (W) HS = 5C/W 12 1.5 Io = 200mA Io = 20mA 1.0 Io = 0mA 8.0 HS = 15C/W No Heatsink 4.0 0 0.5 0 25 50 75 100 125 150 0 25 50 75 100 125 Ambient Temperatue (C) Fig. 3 - Peak Output Current 3.00 80 Fig. 4 -Ripple Rejection Ratio vs. Output Voltage f = 120Hz Io = 20mA Vin = 1.0V (RMS) Io -- Output Current (A) 2.25 TJ = --40C TJ = 0C RR -- Ripple Rejection (db) 70 1.50 60 Part # / Vin 7805 / 10V 7806 / 11V 7808 / 14V 7812 / 19V 7815 / 23V 7818 / 27V 7824 / 33V 4.0 6.0 8.0 10 12 14 16 18 20 22 24 TJ = 25C TJ = 125C 0.75 50 0 40 0 6.0 12 18 24 30 Input -- Output Voltage Differential (V) Vo -- Output Voltage (V) Fig. 5 - Output Impedance (m) vs. Output Voltage 1000 f = 120Hz Io = 500mA CL = OuF 6.20 Fig. 6 - Output Voltage vs. Junction Temperature Vin = 10V Vo = 6.0V Io = 20mA 6.10 100 Vo -- Output Voltage (V) 4.0 8.0 12 16 20 24 6.00 5.90 10 5.80 --75 --50 --25 0 25 50 100 125 150 175 200 Vo -- Output Voltage (V) Document Number 74813 29-Nov-01 TJ -- Junction Temperature (C) www.vishay.com 7 MC78xxCT Series Vishay Semiconductor Ratings and Characteristic Curves (TA = 25C unless otherwise noted) Fig. 7 - Quiescent Current vs. Junction Temperature 5.0 MC78xxC 8.0 Vin = 10V Vo = 5.0V Io = 20mA MC7805 TJ = 25C Fig. 8 - Output Voltage vs. Input Voltage IB -- Quiescent Current (mA) VO -- Output Voltage (V) 4.0 MC78xx 3.0 Vin = 10V Vo = 5.0V Io = 5.0mA 6.0 Io = 10mA 4.0 Io = 1.0A 2.0 2.0 Io = 500mA 1.0 0 --75 0 --50 --25 0 25 50 75 100 125 0 2.0 4.0 6.0 8.0 10 12 14 16 TJ -- Junction Temperature (C) VI -- Input Voltage (V) www.vishay.com 8 Document Number 74813 29-Nov-01 MC78xxCT Series Vishay Semiconductor TO-220 Case Outline 4.85 0.375 10.25 0.25 3.84 0.6 Dia. 1.27 0.12 2.69 0.25 6.26 0.25 14.8 0.51 8.54 0.26 28.7 0.92 3.94 0.375 13.9 0.41 2.53 0.185 1.3 0.185 0.8 0.12 0.387 0.09 2.55 0.375 Dimensions in millimeters Document Number 74813 29-Nov-01 www.vishay.com 9 |
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