μA7800 SERIES www.ti.com SLVS056O – MAY 1976 – REVISED AUGUST 2012 FIXED POSITIVE VOLTAGE REGULATORS Check for Samples: μA7800 SERIES FEATURES 1 • • 2 • 3-Terminal Regulators Available in fixed 5V/8V/10V/12V/15V/24V options Output Current up to 1.5 A • • • • Internal Thermal-Overload Protection High Power-Dissipation Capability Internal Short-Circuit Current Limiting Output Transistor Safe-Area Compensation E ET L SO OB OUTPUT COMMON INPUT KCS OR KCT (TO-220) PACKAGE (TOP VIEW) COMMON COMMON KC (TO-220) PACKAGE (TOP VIEW) TM OB E ET L SO OUTPUT COMMON INPUT KTT (TO-263) PACKAGE (TOP VIEW) COMMON COMMON KTE (PowerFLEX ) PACKAGE (TOP VIEW) OUTPUT COMMON INPUT OUTPUT COMMON INPUT DESCRIPTION/ORDERING INFORMATION This series of fixed-voltage integrated-circuit voltage regulators is designed for a wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated with single-point regulation. Each of these regulators can deliver up to 1.5 A of output current. The internal currentlimiting and thermal-shutdown features of these regulators essentially make them immune to overload. In addition to use as fixed-voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents, and also can be used as the power-pass element in precision regulators. 1 2 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PowerFLEX, PowerPAD are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 1976–2012, Texas Instruments Incorporated μA7800 SERIES SLVS056O – MAY 1976 – REVISED AUGUST 2012 www.ti.com ORDERING INFORMATION (1) TJ 5V 8V ORDERABLE PART NUMBER PACKAGE (2) VO(NOM) TO-220, short shoulder – KCS Tube of 50 UA7805CKCS UA7805C TO-220, single gauge – KCT Tube of 50 UA7805CKCT UA7805C TO-263 – KTT Reel of 500 UA7805CKTTR UA7805C PowerFLEX™ – KTE OBSOLETE OBSOLETE TO-220 – KC OBSOLETE OBSOLETE TO-220, short shoulder – KCS Tube of 50 UA7808CKCS UA7808C TO-220, single gauge – KCT Tube of 50 UA7808CKCT UA7808C TO-263 – KTT Reel of 500 UA7808CKTTR UA7808C OBSOLETE OBSOLETE PowerFLEX – KTE TO-220 – KC 10 V OBSOLETE OBSOLETE TO-220, short shoulder – KCS Tube of 50 UA7810CKCS UA7810C TO-263 – KTT Reel of 500 UA7810CKTTR UA7810C OBSOLETE OBSOLETE PowerFLEX – KTE TO-220 – KC 0°C to 125°C 12 V 15 V OBSOLETE OBSOLETE TO-220, short shoulder – KCS Tube of 50 UA7812CKCS UA7812C TO-220, single gauge – KCT Tube of 50 UA7812CKCT UA7812C TO-263 – KTT Reel of 500 UA7812CKTTR UA7812C PowerFLEX – KTE OBSOLETE OBSOLETE TO-220 – KC OBSOLETE OBSOLETE TO-220, short shoulder – KCS Tube of 50 UA7815CKCS UA7815C TO-220, single gauge – KCT Tube of 50 UA7815CKCT UA7815C TO-263 – KTT Reel of 500 UA7815CKTTR UA7815C OBSOLETE OBSOLETE PowerFLEX – KTE TO-220 – KC 24 V (1) (2) 2 TOP-SIDE MARKING OBSOLETE OBSOLETE TO-220, short shoulder – KCS Tube of 50 UA7824CKCS UA7824C TO-263 – KTT Reel of 500 UA7824CKTTR UA7824C PowerFLEX – KTE OBSOLETE OBSOLETE TO-220 – KC OBSOLETE OBSOLETE For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. Package drawings, thermal data, and symbolization are available at www.ti.com/packaging. Submit Documentation Feedback Copyright © 1976–2012, Texas Instruments Incorporated μA7800 SERIES www.ti.com SLVS056O – MAY 1976 – REVISED AUGUST 2012 Figure 1. SCHEMATIC INPUT OUTPUT COMMON Absolute Maximum Ratings (1) over virtual junction temperature range (unless otherwise noted) MIN Vl Input voltage TJ Operating virtual junction temperature Lead temperature Tstg (1) MAX μA7824C 40 All others 35 1,6 mm (1/16 in) from case for 10 s Storage temperature range –65 UNIT V 150 °C 260 °C 150 °C Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. Package Thermal Data (1) (1) (2) θJP (2) PACKAGE BOARD θJA θJC PowerFLEX (KTE) – OBSOLETE High K, JESD 51-5 23°C/W 3°C/W 2.7°C/W TO-220 (KCS), (KCT) (KC – OBSOLETE) High K, JESD 51-5 19°C/W 17°C/W 3°C/W TO-263 (KTT) High K, JESD 51-5 25.3°C/W 18°C/W 1.94°C/W Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability. For packages with exposed thermal pads, such as QFN, PowerPAD™, or PowerFLEX, θJP is defined as the thermal resistance between the die junction and the bottom of the exposed pad. Copyright © 1976–2012, Texas Instruments Incorporated Submit Documentation Feedback 3 μA7800 SERIES SLVS056O – MAY 1976 – REVISED AUGUST 2012 www.ti.com Recommended Operating Conditions Vl Input voltage IO Output current TJ Operating virtual junction temperature 4 Submit Documentation Feedback MIN MAX μA7805 7 25 UNIT μA7808 10.5 25 μA7810 12.5 28 μA7812 14.5 30 μA7815 17.5 30 μA7824 27 38 1.5 A 0 125 °C V Copyright © 1976–2012, Texas Instruments Incorporated μA7800 SERIES www.ti.com SLVS056O – MAY 1976 – REVISED AUGUST 2012 uA7805 Electrical Characteristics at specified virtual junction temperature, VI = 10 V, IO = 500 mA (unless otherwise noted) PARAMETER TEST CONDITIONS IO = 5 mA to 1 A, VI = 7 V to 20 V, PD ≤ 15 W Output voltage Input voltage regulation Ripple rejection (2) Output voltage regulation VI = 7 V to 25 V VI = 8 V to 12 V VI = 8 V to 12 V, f = 120 Hz VI = 8 V to 12 V, f = 120 Hz (KCT) IO = 5 mA to 1.5 A IO = 250 mA to 750 mA TJ μA7805C (1) MIN TYP 25°C 4.8 5 0°C to 125°C 4.75 25°C 0°C to 125°C 62 UNIT MAX 5.2 V 5.25 3 100 1 50 mV 78 dB 68 25°C 15 100 5 50 mV Output resistance f = 1 kHz 0°C to 125°C 0.017 Ω Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –1.1 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 40 Dropout voltage IO = 1 A 25°C 2 25°C 4.2 Bias current Bias current change VI = 7 V to 25 V IO = 5 mA to 1 A μV V 8 mA 1.3 0°C to 125°C mA 0.5 Short-circuit output current 25°C 750 mA Peak output current 25°C 2.2 A (1) (2) Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 0.33-μF capacitor across the input and a 0.1-μF capacitor across the output. This parameter is validated by design and verified during product characterization. It is not tested in production. uA7808 Electrical Characteristics at specified virtual junction temperature, VI = 14 V, IO = 500 mA (unless otherwise noted) PARAMETER Output voltage Input voltage regulation TEST CONDITIONS TJ 25°C IO = 5 mA to 1 A, VI = 10.5 V to 23 V, PD ≤ 15 W 0°C to 125°C VI = 10.5 V to 25 V VI = 11 V to 17 V Output voltage regulation VI = 11.5 V to 21.5 V, f = 120 Hz (KCT) IO = 5 mA to 1.5 A IO = 250 mA to 750 mA MIN TYP MAX 7.7 8 8.3 7.6 25°C VI = 11.5 V to 21.5 V, f = 120 Hz Ripple rejection (2) μA7808C (1) 55 0°C to 125°C 25°C UNIT V 8.4 6 160 2 80 mV 72 dB 62 12 160 4 80 mV Output resistance f = 1 kHz 0°C to 125°C 0.016 Ω Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –0.8 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 52 μV Dropout voltage IO = 1 A 25°C 2 V 25°C 4.3 Bias current Bias current change VI = 10.5 V to 25 V IO = 5 mA to 1 A Short-circuit output current (1) (2) 1 0°C to 125°C 25°C 8 0.5 450 mA mA mA Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 0.33-μF capacitor across the input and a 0.1-μF capacitor across the output. This parameter is validated by design and verified during product characterization. It is not tested in production. Copyright © 1976–2012, Texas Instruments Incorporated Submit Documentation Feedback 5 μA7800 SERIES SLVS056O – MAY 1976 – REVISED AUGUST 2012 www.ti.com uA7808 Electrical Characteristics (continued) at specified virtual junction temperature, VI = 14 V, IO = 500 mA (unless otherwise noted) PARAMETER TEST CONDITIONS Peak output current TJ μA7808C (1) MIN 25°C TYP MAX 2.2 UNIT A uA7810 Electrical Characteristics at specified virtual junction temperature, VI = 17 V, IO = 500 mA (unless otherwise noted) PARAMETER TEST CONDITIONS TJ 25°C IO = 5 mA to 1 A, VI = 12.5 V to 25 V, PD ≤ 15 W 0°C to 125°C Output voltage Input voltage regulation Ripple rejection (2) Output voltage regulation VI = 12.5 V to 28 V VI = 14 V to 20 V VI = 13 V to 23 V, f = 120 Hz IO = 5 mA to 1.5 A IO = 250 mA to 750 mA μA7810C (1) MIN TYP MAX 9.6 10 10.4 9.5 25°C 0°C to 125°C 55 25°C 10.5 7 200 2 100 71 UNIT V mV dB 12 200 4 100 mV Ω Output resistance f = 1 kHz 0°C to 125°C 0.018 Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –1 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 70 μV Dropout voltage IO = 1 A 25°C 2 25°C 4.3 Bias current Bias current change VI = 12.5 V to 28 V IO = 5 mA to 1 A V 8 1 0°C to 125°C 0.5 mA mA Short-circuit output current 25°C 400 mA Peak output current 25°C 2.2 A (1) (2) Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 0.33-μF capacitor across the input and a 0.1-μF capacitor across the output. This parameter is validated by design and verified during product characterization. It is not tested in production. uA7812 Electrical Characteristics at specified virtual junction temperature, VI = 19 V, IO = 500 mA (unless otherwise noted) PARAMETER Output voltage Input voltage regulation Ripple rejection (2) Output voltage regulation TEST CONDITIONS TJ 25°C IO = 5 mA to 1 A, VI = 14.5 V to 27 V, PD ≤ 15 W 0°C to 125°C VI = 14.5 V to 30 V VI = 16 V to 22 V VI = 15 V to 25 V, f = 120 Hz VI = 15 V to 25 V, f = 120 Hz (KCT) IO = 5 mA to 1.5 A IO = 250 mA to 750 mA μA7812C (1) MIN TYP MAX 11.5 12 12.5 11.4 25°C 0°C to 125°C 25°C 55 12.6 10 240 3 120 71 UNIT V mV dB 61 12 240 4 120 mV Ω Output resistance f = 1 kHz 0°C to 125°C 0.018 Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –1 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 75 μV Dropout voltage IO = 1 A 25°C 2 V (1) (2) 6 Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 0.33-μF capacitor across the input and a 0.1-μF capacitor across the output. This parameter is validated by design and verified during product characterization. It is not tested in production. Submit Documentation Feedback Copyright © 1976–2012, Texas Instruments Incorporated μA7800 SERIES www.ti.com SLVS056O – MAY 1976 – REVISED AUGUST 2012 uA7812 Electrical Characteristics (continued) at specified virtual junction temperature, VI = 19 V, IO = 500 mA (unless otherwise noted) PARAMETER TEST CONDITIONS Bias current TJ μA7812C (1) MIN 25°C Bias current change VI = 14.5 V to 30 V IO = 5 mA to 1 A TYP MAX 4.3 8 UNIT mA 1 0°C to 125°C mA 0.5 Short-circuit output current 25°C 350 mA Peak output current 25°C 2.2 A uA7815 Electrical Characteristics at specified virtual junction temperature, VI = 23 V, IO = 500 mA (unless otherwise noted) PARAMETER TEST CONDITIONS IO = 5 mA to 1 A, VI = 17.5 V to 30 V, PD ≤ 15 W Output voltage Input voltage regulation VI = 17.5 V to 30 V VI = 20 V to 26 V TJ μA7815C (1) MIN TYP MAX 25°C 14.4 15 15.6 0°C to 125°C 14.25 25°C VI = 18.5 V to 28.5 V, f = 120 Hz Ripple rejection (2) Output voltage regulation VI = 18.5 V to 28.5 V, f = 120 Hz (KCT) IO = 5 mA to 1.5 A IO = 250 mA to 750 mA 54 0°C to 125°C UNIT V 15.75 11 300 3 150 mV 70 dB 60 25°C 12 300 4 150 mV Ω Output resistance f = 1 kHz 0°C to 125°C 0.019 Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –1 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 90 μV Dropout voltage IO = 1 A 25°C 2 25°C 4.4 Bias current Bias current change VI = 17.5 V to 30 V IO = 5 mA to 1 A V 8 1 0°C to 125°C 0.5 mA mA Short-circuit output current 25°C 230 mA Peak output current 25°C 2.1 A (1) (2) Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 0.33-μF capacitor across the input and a 0.1-μF capacitor across the output. This parameter is validated by design and verified during product characterization. It is not tested in production. uA7824 Electrical Characteristics at specified virtual junction temperature, VI = 33 V, IO = 500 mA (unless otherwise noted) PARAMETER Output voltage Input voltage regulation Ripple rejection (2) (1) (2) TEST CONDITIONS IO = 5 mA to 1 A, VI = 27 V to 38 V, PD ≤ 15 W VI = 27 V to 38 V VI = 30 V to 36 V VI = 28 V to 38 V, f = 120 Hz TJ μA7824C (1) 25°C 0°C to 125°C MIN TYP MAX 23 24 25 22.8 25°C 0°C to 125°C 50 25.2 18 480 6 240 66 UNIT V mV dB Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. All characteristics are measured with a 0.33-μF capacitor across the input and a 0.1-μF capacitor across the output. This parameter is validated by design and verified during product characterization. It is not tested in production. Copyright © 1976–2012, Texas Instruments Incorporated Submit Documentation Feedback 7 μA7800 SERIES SLVS056O – MAY 1976 – REVISED AUGUST 2012 www.ti.com uA7824 Electrical Characteristics (continued) at specified virtual junction temperature, VI = 33 V, IO = 500 mA (unless otherwise noted) PARAMETER TEST CONDITIONS IO = 5 mA to 1.5 A Output voltage regulation MIN 25°C IO = 250 mA to 750 mA μA7824C (1) TJ TYP MAX 12 480 4 240 UNIT mV Output resistance f = 1 kHz 0°C to 125°C 0.028 Ω Temperature coefficient of output voltage IO = 5 mA 0°C to 125°C –1.5 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 170 μV Dropout voltage IO = 1 A 25°C 2 V 25°C 4.6 Bias current VI = 27 V to 38 V Bias current change 1 0°C to 125°C IO = 5 mA to 1 A 8 0.5 mA mA Short-circuit output current 25°C 150 mA Peak output current 25°C 2.1 A APPLICATION INFORMATION µA78xx +V +VO 0.33 µF 0.1 µF Figure 2. Fixed-Output Regulator IN + µA78xx VI OUT G IL COM −VO − Figure 3. Positive Regulator in Negative Configuration (VI Must Float) Input µA78xx IO Output R1 0.33 µF 0.1 µF R2 A: The following formula is used when Vxx is the nominal output voltage (output to common) of the fixed regulator: VO + Vxx ) ǒVR1 ) I ǓR2 xx Q Figure 4. Adjustable-Output Regulator 8 Submit Documentation Feedback Copyright © 1976–2012, Texas Instruments Incorporated μA7800 SERIES www.ti.com SLVS056O – MAY 1976 – REVISED AUGUST 2012 µA78xx Input 0.33 µF R1 VO(Reg) Output IO IO = (VO/R1) + IO Bias Current Figure 5. Current Regulator 1N4001 µA7815C 20-V Input VO = 15 V 0.33 µF 0.1 µF 1 µF 2 µF 1N4001 0.1 µF 1N4001 µA7915C −20-V Input VO = −15 V 1N4001 Figure 6. Regulated Dual Supply Operation With a Load Common to a Voltage of Opposite Polarity In many cases, a regulator powers a load that is not connected to ground but, instead, is connected to a voltage source of opposite polarity (e.g., operational amplifiers, level-shifting circuits, etc.). In these cases, a clamp diode should be connected to the regulator output as shown in Figure 7. This protects the regulator from output polarity reversals during startup and short-circuit operation. +VI µA78xx +VO 1N4001 or Equivalent −VO Figure 7. Output Polarity-Reversal-Protection Circuit Reverse-Bias Protection Occasionally, the input voltage to the regulator can collapse faster than the output voltage. This can occur, for example, when the input supply is crowbarred during an output overvoltage condition. If the output voltage is greater than approximately 7 V, the emitter-base junction of the series-pass element (internal or external) could break down and be damaged. To prevent this, a diode shunt can be used as shown in Figure 8. Copyright © 1976–2012, Texas Instruments Incorporated Submit Documentation Feedback 9 μA7800 SERIES SLVS056O – MAY 1976 – REVISED AUGUST 2012 www.ti.com VI µA78xx +VO Figure 8. Reverse-Bias-Protection Circuit 10 Submit Documentation Feedback Copyright © 1976–2012, Texas Instruments Incorporated μA7800 SERIES www.ti.com SLVS056O – MAY 1976 – REVISED AUGUST 2012 REVISION HISTORY Changes from Revision M (January 2009) to Revision N • Page Added KCT package and orderable part number to the ORDERING INFORMATION table. .............................................. 2 Changes from Revision N (June 2012) to Revision O • Page Added KCT Orderable Part Numbers for 8V & 12V ............................................................................................................. 2 Copyright © 1976–2012, Texas Instruments Incorporated Submit Documentation Feedback 11 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. 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