www.DataSheet4U.com µA7900 SERIES NEGATIVE-VOLTAGE REGULATORS SLVS058A – JUNE 1976 – REVISED OCTOBER 1996 D D D D D D D D KC PACKAGE (TOP VIEW) 3-Terminal Regulators Output Current Up to 1.5 A No External Components Internal Thermal Overload Protection High-Power Dissipation Capability Internal Short-Circuit Current Limiting Output Transistor Safe-Area Compensation Essentially Equivalent to National LM320 Series OUTPUT INPUT COMMON The input terminal is in electrical contact with the mounting base TO–220AB O I description This series of fixed-negative-voltage monolithic integrated-circuit voltage regulators is designed to complement Series µA7800 in 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 current limiting and thermal shutdown features of these regulators make them essentially 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 as the power pass element in precision regulators. C KTE PACKAGE (TOP VIEW) OUTPUT INPUT COMMON The input terminal is in electrical contact with the mounting base. O I C AVAILABLE OPTIONS TA 0°C to 125°C VO(nom) (V) PACKAGED DEVICES HEAT-SINK MOUNTED (KC) HEAT-SINK MOUNTED† (KTE) CHIP FORM (Y) –5 µA7905CKC µA7905CKTE µA7905Y – 5.2 µA7952CKC µA7952CKTE µA7952Y –6 µA7906CKC µA7906CKTE µA7906Y –8 µA7908CKC µA7908CKTE µA7908Y –12 µA7912CKC µA7912CKTE µA7912Y –15 µA7915CKC µA7915CKTE µA7915Y –18 µA7918CKC µA7918CKTE µA7918Y – 24 µA7924CKC µA7924CKTE µA7924Y † The KTE package is also available taped and reeled. 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. Copyright 1996, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 µA7900 SERIES NEGATIVE-VOLTAGE REGULATORS SLVS058A – JUNE 1976 – REVISED OCTOBER 1996 schematic 12 V to 18 V 5 V to 8 V COMMON 5 kΩ OUTPUT 6.2 V 20 kΩ 0.2 kΩ INPUT INPUT All component values are nominal. absolute maximum ratings over operating temperature range (unless otherwise noted) www.DataSheet4U.com Input voltage, VI: µA7924C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40 V All others . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 35 V Continuous total power dissipation at (or below): TA = 25°C (see Note 1) . . . See Dissipation Rating Tables TC = 90°C (see Note 1) . . . See Dissipation Rating Tables Operating free-air, TA, case, TC, or virtual junction, TJ, temperature range . . . . . . . . . . . . . . . . . . . 0 to 150°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65 to 150°C Lead temperature 3.2 mm (1/8 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C NOTE 1: For operation above 25°C free-air or 90°C case temperature, refer to Figures 1 and 2. To avoid exceeding the design maximum virtual junction temperature, these ratings should not be exceeded. Due to variations in individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be activated at power levels slightly above or below the rated dissipation. DISSIPATION RATING TABLE — FREE-AIR TEMPERATURE PACKAGE TA ≤ 25°C POWER RATING DERATING FACTOR ABOVE TA = 25°C TA = 70°C POWER RATING TA = 105°C POWER RATING TA = 125°C POWER RATING KC 2000 mW 16.0 mW/°C 1280 mW 720 mW 400 mW KTE 1900 mW 15.2 mW/°C 1216 mW 684 mW 380 mW DISSIPATION RATING TABLE — CASE TEMPERATURE 2 PACKAGE TC ≤ 90°C POWER RATING DERATING FACTOR ABOVE TC = 90°C TA = 125°C POWER RATING KC 15000 mW 250.0 mW/°C 6250 mW KTE 14300 mW 238.0 mW/°C 5970 mW POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 µA7900 SERIES NEGATIVE-VOLTAGE REGULATORS SLVS058A – JUNE 1976 – REVISED OCTOBER 1996 FREE-AIR TEMPERATURE DISSIPATATION DERATING CURVE CASE TEMPERATURE DISSIPATION DERATING CURVE 16 2000 Maximum Continuous Dissipation – W Maximum Continuous Dissipation – mW 1800 1600 1400 1200 1000 800 600 400 200 Derating factor = 16 mW/°C RθJA ≈ 62.5°C/W 0 25 14 12 10 8 6 4 Derating factor = 0.25 W/°C above 90°C RθJA ≈ 4°C/W 2 0 50 75 100 125 150 25 50 TA – Free-Air Temperature – °C 75 125 100 150 TC – Case Temperature – °C Figure 1 Figure 2 recommended operating conditions www.DataSheet4U.com Input voltage, voltage VI MIN MAX µA7905C –7 – 25 µA7952C – 7.2 – 25 µA7906C –8 – 25 µA7908C – 10.5 – 25 µA7912C – 14.5 – 30 µA7915C – 17.5 – 30 µA7918C – 21 – 33 µA7924C – 27 – 28 1.5 A 0 125 °C Output current, IO Operating virtual junction temperature, TJ POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 UNIT V 3 µA7900 SERIES NEGATIVE-VOLTAGE REGULATORS SLVS058A – JUNE 1976 – REVISED OCTOBER 1996 electrical characteristics at specified virtual junction temperature, VI = –10 V, IO = 500 mA (unless otherwise noted) PARAMETER Output voltage‡ Input regulation Ripple rejection Output regulation TEST CONDITIONS IO = 5 mA to 1 A, P ≤ 15 W VI = – 7 V to – 20 V, µA7905C TJ† MIN TYP MAX 25°C – 4.8 –5 – 5.2 0°C to 125°C – 4.75 VI = – 7 V to – 25 V VI = – 8 V to – 12 V VI = – 8 V to – 18 V, IO = 5 mA to 1.5 A f = 120 Hz 0°C to 125°C 54 – 5.25 12.5 50 4 15 60 UNITS V mV dB 15 100 5 50 mV Temperature coefficient of output voltage IO = 250 mA to 750 mA IO = 5 mA 0°C to 125°C – 0.4 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 125 µV Dropout voltage IO = 1 A 25°C 1.1 25°C 1.5 2 0.15 0.5 0.08 0.5 Bias current Bias current change VI = – 7 V to – 25 V IO = 5 mA to 1 A V mA mA Peak output current 25°C 2.1 A † Pulse-testing techniques are used to 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 2-µF capacitor across the input and a 1-µF capacitor across the output. ‡ This specification applies only for dc power dissipation permitted by absolute maximum ratings. electrical characteristics at specified virtual junction temperature, VI = –10 V, IO = 500 mA (unless otherwise noted) www.DataSheet4U.com PARAMETER Output voltage‡ Input regulation Ripple rejection Output regulation TEST CONDITIONS IO = 5 mA to 1 A, P ≤ 15 W VI = – 7.2 V to – 20 V, µA7952C TJ† MIN TYP MAX 25°C –5 – 5.2 – 5.4 0°C to 125°C – 4.95 VI = – 7.2 V to – 25 V VI = – 8.2 V to – 12 V VI = – 8.2 V to – 18 V, IO = 5 mA to 1.5 A f = 120 Hz 0°C to 125°C 54 – 5.45 12.5 100 4 50 60 UNITS V mV dB 15 100 5 50 mV Temperature coefficient of output voltage IO = 250 mA to 750 mA IO = 5 mA 0°C to 125°C – 0.4 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 125 µV Dropout voltage IO = 1 A 25°C 1.1 25°C 1.5 2 0.15 1.3 0.08 0.5 Bias current Bias current change VI = –7.2 V to – 25 V IO = 5 mA to 1 A V mA mA Peak output current 25°C 2.1 A † Pulse-testing techniques are used to 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 2-µF capacitor across the input and a 1-µF capacitor across the output. ‡ This specification applies only for dc power dissipation permitted by absolute maximum ratings. 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 µA7900 SERIES NEGATIVE-VOLTAGE REGULATORS SLVS058A – JUNE 1976 – REVISED OCTOBER 1996 electrical characteristics at specified virtual junction temperature, VI = –11 V, IO = 500 mA (unless otherwise noted) PARAMETER Output voltage‡ Input regulation Ripple rejection Output regulation IO = 5 mA to 1 A, P ≤ 15 W VI = – 8 V to – 21 V, µA7906C TJ† MIN TYP MAX 25°C – 5.75 –6 – 6.25 0°C to 125°C – 5.7 TEST CONDITIONS VI = – 8 V to – 25 V VI = – 9 V to – 13 V VI = – 9 V to – 19 V, IO = 5 mA to 1.5 A f = 120 Hz 0°C to 125°C 54 – 6.3 12.5 120 4 60 60 UNITS V mV dB 15 120 5 60 mV Temperature coefficient of output voltage IO = 250 mA to 750 mA IO = 5 mA 0°C to 125°C – 0.4 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 150 µV Dropout voltage IO = 1 A 25°C 1.1 25°C 1.5 2 0.15 1.3 0.08 0.5 Bias current Bias current change VI = – 8 V to – 25 V IO = 5 mA to 1 A V mA mA Peak output current 25°C 2.1 A † Pulse-testing techniques are used to 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 2-µF capacitor across the input and a 1-µF capacitor across the output. ‡ This specification applies only for dc power dissipation permitted by absolute maximum ratings. electrical characteristics at specified virtual junction temperature, VI = –14 V, IO = 500 mA (unless otherwise noted) www.DataSheet4U.com PARAMETER Output voltage‡ Input regulation Ripple rejection Output regulation TEST CONDITIONS IO = 5 mA to 1 A, P ≤ 15 W VI = – 10.5 V to – 23 V, µA7908C TJ† MIN TYP MAX 25°C – 7.7 –8 – 8.3 0°C to 125°C – 7.6 VI = – 10.5 V to – 25 V VI = – 11 V to – 17 V VI = – 11.5 V to – 21.5 V, f = 120 Hz IO = 5 mA to 1.5 A 0°C to 125°C 54 – 8.4 12.5 160 4 80 60 UNITS V mV dB 15 160 5 80 mV Temperature coefficient of output voltage IO = 250 mA to 750 mA IO = 5 mA 0°C to 125°C – 0.6 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 200 µV Dropout voltage IO = 1 A 25°C 1.1 25°C 1.5 Bias current Bias current change VI = –10.5 V to – 25 V IO = 5 mA to 1 A V 2 0.15 1 0.08 0.5 mA mA Peak output current 25°C 2.1 A † Pulse-testing techniques are used to 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 2-µF capacitor across the input and a 1-µF capacitor across the output. ‡ This specification applies only for dc power dissipation permitted by absolute maximum ratings. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 µA7900 SERIES NEGATIVE-VOLTAGE REGULATORS SLVS058A – JUNE 1976 – REVISED OCTOBER 1996 electrical characteristics at specified virtual junction temperature, VI = –19 V, IO = 500 mA (unless otherwise noted) PARAMETER Output voltage‡ Input regulation Ripple rejection Output regulation TEST CONDITIONS IO = 5 mA to 1 A, P ≤ 15 W VI = – 14.5 V to – 27 V, µA7912C TJ† MIN TYP MAX 25°C – 11.5 – 12 – 12.5 0°C to 125°C – 11.4 VI = – 14.5 V to – 30 V VI = – 16 V to – 22 V VI = – 15 V to – 25 V, IO = 5 mA to 1.5 A f = 120 Hz 0°C to 125°C 54 – 12.6 5 80 3 30 60 UNITS V mV dB 15 200 5 75 mV Temperature coefficient of output voltage IO = 250 mA to 750 mA IO = 5 mA 0°C to 125°C – 0.8 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 300 µV Dropout voltage IO = 1 A 25°C 1.1 25°C 2 3 0.04 0.5 0.06 0.5 Bias current Bias current change VI = –14.5 V to – 30 V IO = 5 mA to 1 A V mA mA Peak output current 25°C 2.1 A † Pulse-testing techniques are used to 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 2-µF capacitor across the input and a 1-µF capacitor across the output. ‡ This specification applies only for dc power dissipation permitted by absolute maximum ratings. electrical characteristics at specified virtual junction temperature, VI = –23 V, IO = 500 mA (unless otherwise noted) www.DataSheet4U.com PARAMETER Output voltage‡ Input regulation Ripple rejection Output regulation IO = 5 mA to 1 A, P ≤ 15 W VI = – 17.5 V to – 30 V, µA7915C TJ† MIN TYP MAX 25°C – 14.4 – 15 – 15.6 0°C to 125°C – 14.25 TEST CONDITIONS VI = – 17.5 V to – 30 V VI = – 20 V to – 26 V VI = – 18.5 V to – 28.5 V, f = 120 Hz IO = 5 mA to 1.5 A 0°C to 125°C 54 – 15.75 5 100 3 50 60 UNITS V mV dB 20 300 8 150 mV Temperature coefficient of output voltage IO = 250 mA to 750 mA IO = 5 mA 0°C to 125°C –1 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 375 µV Dropout voltage IO = 1 A 25°C 1.1 25°C 2 3 0.04 0.5 0.06 0.5 Bias current Bias current change VI = –17.5 V to – 30 V IO = 5 mA to 1 A V mA mA Peak output current 25°C 2.1 A † Pulse-testing techniques are used to 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 2-µF capacitor across the input and a 1-µF capacitor across the output. ‡ This specification applies only for dc power dissipation permitted by absolute maximum ratings. 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 µA7900 SERIES NEGATIVE-VOLTAGE REGULATORS SLVS058A – JUNE 1976 – REVISED OCTOBER 1996 electrical characteristics at specified virtual junction temperature, VI = –27 V, IO = 500 mA (unless otherwise noted) PARAMETER Output voltage‡ Input regulation Ripple rejection Output regulation TEST CONDITIONS IO = 5 mA to 1 A, P ≤ 15 W VI = – 21 V to – 33 V, µA7918C TJ† MIN TYP MAX 25°C – 17.3 – 18 – 18.7 0°C to 125°C – 17.1 VI = – 21 V to – 33 V VI = – 24 V to – 30 V VI = – 22 V to – 32 V, IO = 5 mA to 1.5 A f = 120 Hz 0°C to 125°C 54 – 18.9 5 360 3 180 60 UNITS V mV dB 30 360 10 180 mV Temperature coefficient of output voltage IO = 250 mA to 750 mA IO = 5 mA 0°C to 125°C –1 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 450 µV Dropout voltage IO = 1 A 25°C 1.1 25°C 2 Bias current Bias current change VI = –21 V to – 33 V IO = 5 mA to 1 A V 3 0.04 1 0.06 0.5 mA mA Peak output current 25°C 2.1 A † Pulse-testing techniques are used to 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 2-µF capacitor across the input and a 1-µF capacitor across the output. ‡ This specification applies only for dc power dissipation permitted by absolute maximum ratings. electrical characteristics at specified virtual junction temperature, VI = –33 V, IO = 500 mA (unless otherwise noted) www.DataSheet4U.com PARAMETER Output voltage‡ Input regulation Ripple rejection Output regulation TEST CONDITIONS IO = 5 mA to 1 A, P ≤ 15 W VI = – 27 V to – 38 V, µA7924C TJ† MIN TYP MAX 25°C – 23 – 24 – 25 0°C to 125°C – 22.8 VI = – 27 V to – 38 V VI = – 30 V to – 36 V VI = – 28 V to – 38 V, f = 120 Hz IO = 5 mA to 1.5 A 0°C to 125°C 54 – 25.2 5 480 3 240 60 UNITS V mV dB 85 480 25 240 mV Temperature coefficient of output voltage IO = 250 mA to 750 mA IO = 5 mA 0°C to 125°C –1 mV/°C Output noise voltage f = 10 Hz to 100 kHz 25°C 600 µV Dropout voltage IO = 1 A 25°C 1.1 25°C 2 Bias current Bias current change VI = –27 V to – 38 V IO = 5 mA to 1 A V 3 0.04 1 0.06 0.5 mA mA Peak output current 25°C 2.1 A † Pulse-testing techniques are used to 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 2-µF capacitor across the input and a 1-µF capacitor across the output. ‡ This specification applies only for dc power dissipation permitted by absolute maximum ratings. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 µA7900 SERIES NEGATIVE-VOLTAGE REGULATORS SLVS058A – JUNE 1976 – REVISED OCTOBER 1996 MECHANICAL INFORMATION KC (R-PSFM-T3) PLASTIC FLANGE-MOUNT PACKAGE 0.120 (3,05) 0.100 (2,54) 0.420 (10,67) 0.380 (9,65) 0.156 (3,96) DIA 0.146 (3,71) 0.185 (4,70) 0.175 (4,46) (see Note H) 0.052 (1,32) 0.048 (1,22) 0.270 (6,86) 0.230 (5,84) (see Note H) 0.625 (15,88) 0.560 (14,22) 0.125 (3,18) (see Note C) (see Note F) 0.250 (6,35) MAX www.DataSheet4U.com 0.562 (14,27) 0.500 (12,70) 1 0.035 (0,89) 0.029 (0,74) 0.010 (0,25) M 3 0.070 (1,78) 0.045 (1,14) 0.122 (3,10) 0.102 (2,59) 0.025 (0,64) 0.012 (0,30) 0.100 (2,54) 0.200 (5,08) 4040207 / B 01/95 NOTES: A. B. C. D. E. F. G. H. 8 All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. Lead dimensions are not controlled within this area. All lead dimensions apply before solder dip. The center lead is in electrical contact with the mounting tab. The chamfer is optional. Falls within JEDEC TO-220AB Tab contour optional within these dimensions POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 µA7900 SERIES NEGATIVE-VOLTAGE REGULATORS SLVS058A – JUNE 1976 – REVISED OCTOBER 1996 MECHANICAL INFORMATION KTE (R-PSFM-T3) PLASTIC FLANGE-MOUNT PACKAGE 0.080 (2,03) 0.070 (1,78) 0.366 (9,31) 0.050 (1,27) 0.040 (1,02) 0.356 (9,05) 0.220 (5,59) NOM 0.010 (0,25) NOM 0.360 (9,14) 0.350 (8,89) 0.295 (7,49) NOM 0.320 (8,13) 0.310 (7,87) 0.420 (10,67) 0.410 (10,41) 1 3 0.025 (0,63) 0.031 (0,79) 0.100 (2,54) Thermal Tab (see Note C) Seating Plane 0.004 (0,10) 0.010 (0,25) M 0.005 (0,13) 0.001 (0,03) 0.200 (5,08) www.DataSheet4U.com 0.041 (1,04) 0.031 (0,79) 0.010 (0,25) NOM Gage Plane 3°– 6° 0.010 (0,25) 4073375/B 01/96 NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice. C. The center lead is in electrical contact with the thermal tab. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 9 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. 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TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, warranty or endorsement thereof. www.DataSheet4U.com Copyright 1998, Texas Instruments Incorporated