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| A7900 SERIES NEGATIVE-VOLTAGE REGULATORS SLVS058A - JUNE 1976 - REVISED OCTOBER 1996 D D D D D D D D 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 KC PACKAGE (TOP VIEW) 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 A7800 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 VO(nom) (V) -5 - 5.2 -6 0C to 125C -8 -12 -15 -18 - 24 PACKAGED DEVICES HEAT-SINK MOUNTED (KC) A7905CKC A7952CKC A7906CKC A7908CKC A7912CKC A7915CKC A7918CKC A7924CKC HEAT-SINK MOUNTED (KTE) A7905CKTE A7952CKTE A7906CKTE A7908CKTE A7912CKTE A7915CKTE A7918CKTE A7924CKTE CHIP FORM (Y) A7905Y A7952Y A7906Y A7908Y A7912Y A7915Y A7918Y A7924Y 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 (c) 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 A7900 SERIES NEGATIVE-VOLTAGE REGULATORS SLVS058A - JUNE 1976 - REVISED OCTOBER 1996 schematic 5 V to 8 V 12 V to 18 V COMMON 5 k OUTPUT 6.2 V 20 k 0.2 k INPUT INPUT All component values are nominal. absolute maximum ratings over operating temperature range (unless otherwise noted) Input voltage, VI: A7924C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 40 V All others . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 35 V Continuous total power dissipation at (or below): TA = 25C (see Note 1) . . . See Dissipation Rating Tables TC = 90C (see Note 1) . . . See Dissipation Rating Tables Operating free-air, TA, case, TC, or virtual junction, TJ, temperature range . . . . . . . . . . . . . . . . . . . 0 to 150C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65 to 150C Lead temperature 3.2 mm (1/8 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260C NOTE 1: For operation above 25C free-air or 90C 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 KC KTE TA 25C POWER RATING 2000 mW 1900 mW DERATING FACTOR ABOVE TA = 25C 16.0 mW/C 15.2 mW/C TA = 70C POWER RATING 1280 mW 1216 mW TA = 105C POWER RATING 720 mW 684 mW TA = 125C POWER RATING 400 mW 380 mW DISSIPATION RATING TABLE -- CASE TEMPERATURE PACKAGE KC KTE TC 90C POWER RATING 15000 mW 14300 mW DERATING FACTOR ABOVE TC = 90C 250.0 mW/C 238.0 mW/C TA = 125C POWER RATING 6250 mW 5970 mW 2 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 A7900 SERIES NEGATIVE-VOLTAGE REGULATORS SLVS058A - JUNE 1976 - REVISED OCTOBER 1996 FREE-AIR TEMPERATURE DISSIPATATION DERATING CURVE 2000 Maximum Continuous Dissipation - W 1800 Maximum Continuous Dissipation - mW 1600 1400 1200 1000 800 600 400 200 0 25 Derating factor = 16 mW/C RJA 62.5C/W 16 14 12 10 8 6 4 2 0 50 75 100 125 150 25 CASE TEMPERATURE DISSIPATION DERATING CURVE Derating factor = 0.25 W/C above 90C RJA 4C/W 50 75 100 125 150 TA - Free-Air Temperature - C TC - Case Temperature - C Figure 1 Figure 2 recommended operating conditions MIN A7905C A7952C A7906C Input voltage VI voltage, A7908C A7912C A7915C A7918C A7924C Output current, IO Operating virtual junction temperature, TJ 0 -7 - 7.2 -8 - 10.5 - 14.5 - 17.5 - 21 - 27 MAX - 25 - 25 - 25 - 25 - 30 - 30 - 33 - 28 1.5 125 A C V UNIT POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 3 A7900 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 TEST CONDITIONS TJ 25C Output voltage IO = 5 mA to 1 A, P 15 W 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 IO = 250 mA to 750 mA IO = 5 mA f = 10 Hz to 100 kHz IO = 1 A VI = - 7 V to - 25 V IO = 5 mA to 1 A f = 120 Hz 0C to 125C 54 VI = - 7 V to - 20 V, 0C to 125C A7905C MIN - 4.8 - 4.75 12.5 4 60 15 5 0C to 125C 25C 25C 25C - 0.4 125 1.1 1.5 0.15 0.08 2 0.5 0.5 100 50 TYP -5 MAX - 5.2 - 5.25 50 15 V UNITS Input regulation Ripple rejection Output regulation Temperature coefficient of output voltage Output noise voltage Dropout voltage Bias current Bias current change mV dB mV mV/C V V mA mA Peak output current 25C 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-F capacitor across the input and a 1-F 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) PARAMETER TEST CONDITIONS TJ 25C Output voltage IO = 5 mA to 1 A, P 15 W 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 IO = 250 mA to 750 mA IO = 5 mA f = 10 Hz to 100 kHz IO = 1 A VI = -7.2 V to - 25 V IO = 5 mA to 1 A f = 120 Hz 0C to 125C 54 VI = - 7.2 V to - 20 V, 0C to 125C A7952C MIN -5 - 4.95 12.5 4 60 15 5 0C to 125C 25C 25C 25C - 0.4 125 1.1 1.5 0.15 0.08 2 1.3 0.5 100 50 TYP - 5.2 MAX - 5.4 - 5.45 100 50 V UNITS Input regulation Ripple rejection Output regulation Temperature coefficient of output voltage Output noise voltage Dropout voltage Bias current Bias current change mV dB mV mV/C V V mA mA Peak output current 25C 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-F capacitor across the input and a 1-F 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 A7900 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 TEST CONDITIONS TJ 25C Output voltage IO = 5 mA to 1 A, P 15 W 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 IO = 250 mA to 750 mA IO = 5 mA f = 10 Hz to 100 kHz IO = 1 A VI = - 8 V to - 25 V IO = 5 mA to 1 A f = 120 Hz 0C to 125C 54 VI = - 8 V to - 21 V, 0C to 125C A7906C MIN - 5.75 - 5.7 12.5 4 60 15 5 0C to 125C 25C 25C 25C - 0.4 150 1.1 1.5 0.15 0.08 2 1.3 0.5 120 60 TYP -6 MAX - 6.25 - 6.3 120 60 V UNITS Input regulation Ripple rejection Output regulation Temperature coefficient of output voltage Output noise voltage Dropout voltage Bias current Bias current change mV dB mV mV/C V V mA mA Peak output current 25C 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-F capacitor across the input and a 1-F 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) PARAMETER TEST CONDITIONS TJ 25C Output voltage IO = 5 mA to 1 A, P 15 W 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 IO = 250 mA to 750 mA IO = 5 mA f = 10 Hz to 100 kHz IO = 1 A VI = -10.5 V to - 25 V IO = 5 mA to 1 A 0C to 125C 54 VI = - 10.5 V to - 23 V, 0C to 125C A7908C MIN - 7.7 - 7.6 12.5 4 60 15 5 0C to 125C 25C 25C 25C - 0.6 200 1.1 1.5 0.15 0.08 2 1 0.5 160 80 TYP -8 MAX - 8.3 - 8.4 160 80 V UNITS Input regulation Ripple rejection Output regulation Temperature coefficient of output voltage Output noise voltage Dropout voltage Bias current Bias current change mV dB mV mV/C V V mA mA Peak output current 25C 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-F capacitor across the input and a 1-F 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 A7900 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 TEST CONDITIONS TJ 25C Output voltage IO = 5 mA to 1 A, P 15 W 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 IO = 250 mA to 750 mA IO = 5 mA f = 10 Hz to 100 kHz IO = 1 A VI = -14.5 V to - 30 V IO = 5 mA to 1 A f = 120 Hz 0C to 125C 54 VI = - 14.5 V to - 27 V, 0C to 125C A7912C MIN - 11.5 - 11.4 5 3 60 15 5 0C to 125C 25C 25C 25C - 0.8 300 1.1 2 0.04 0.06 3 0.5 0.5 200 75 TYP - 12 MAX - 12.5 - 12.6 80 30 V UNITS Input regulation Ripple rejection Output regulation Temperature coefficient of output voltage Output noise voltage Dropout voltage Bias current Bias current change mV dB mV mV/C V V mA mA Peak output current 25C 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-F capacitor across the input and a 1-F 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) PARAMETER TEST CONDITIONS TJ 25C Output voltage IO = 5 mA to 1 A, P 15 W VI = - 17.5 V to - 30 V, 0C to 125C A7915C MIN - 14.4 - 14.25 5 3 0C to 125C 54 60 20 8 0C to 125C 25C 25C 25C VI = -17.5 V to - 30 V IO = 5 mA to 1 A -1 375 1.1 2 0.04 0.06 3 0.5 0.5 300 150 TYP - 15 MAX - 15.6 - 15.75 100 50 V UNITS Input regulation Ripple rejection Output regulation Temperature coefficient of output voltage Output noise voltage Dropout voltage Bias current Bias current change 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 IO = 250 mA to 750 mA IO = 5 mA f = 10 Hz to 100 kHz IO = 1 A mV dB mV mV/C V V mA mA Peak output current 25C 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-F capacitor across the input and a 1-F 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 A7900 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 TEST CONDITIONS TJ 25C Output voltage IO = 5 mA to 1 A, P 15 W 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 IO = 250 mA to 750 mA IO = 5 mA f = 10 Hz to 100 kHz IO = 1 A VI = -21 V to - 33 V IO = 5 mA to 1 A f = 120 Hz 0C to 125C 54 VI = - 21 V to - 33 V, 0C to 125C A7918C MIN - 17.3 - 17.1 5 3 60 30 10 0C to 125C 25C 25C 25C -1 450 1.1 2 0.04 0.06 3 1 0.5 360 180 TYP - 18 MAX - 18.7 - 18.9 360 180 V UNITS Input regulation Ripple rejection Output regulation Temperature coefficient of output voltage Output noise voltage Dropout voltage Bias current Bias current change mV dB mV mV/C V V mA mA Peak output current 25C 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-F capacitor across the input and a 1-F 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) PARAMETER TEST CONDITIONS TJ 25C Output voltage IO = 5 mA to 1 A, P 15 W 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 IO = 250 mA to 750 mA IO = 5 mA f = 10 Hz to 100 kHz IO = 1 A VI = -27 V to - 38 V IO = 5 mA to 1 A 0C to 125C 54 VI = - 27 V to - 38 V, 0C to 125C A7924C MIN - 23 - 22.8 5 3 60 85 25 0C to 125C 25C 25C 25C -1 600 1.1 2 0.04 0.06 3 1 0.5 480 240 TYP - 24 MAX - 25 - 25.2 480 240 V UNITS Input regulation Ripple rejection Output regulation Temperature coefficient of output voltage Output noise voltage Dropout voltage Bias current Bias current change mV dB mV mV/C V V mA mA Peak output current 25C 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-F capacitor across the input and a 1-F 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 A7900 SERIES NEGATIVE-VOLTAGE REGULATORS SLVS058A - JUNE 1976 - REVISED OCTOBER 1996 MECHANICAL INFORMATION KC (R-PSFM-T3) 0.420 (10,67) 0.380 (9,65) (see Note H) 0.120 (3,05) 0.100 (2,54) PLASTIC FLANGE-MOUNT PACKAGE 0.185 (4,70) 0.175 (4,46) 0.156 (3,96) DIA 0.146 (3,71) 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) (see Note F) 0.125 (3,18) (see Note C) 0.250 (6,35) MAX 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) 0.100 (2,54) 0.200 (5,08) 4040207 / B 01/95 0.122 (3,10) 0.102 (2,59) 0.025 (0,64) 0.012 (0,30) NOTES: A. B. C. D. E. F. G. H. 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 8 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 A7900 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) 0.356 (9,05) 0.220 (5,59) NOM 0.050 (1,27) 0.040 (1,02) 0.010 (0,25) NOM 0.295 (7,49) NOM 0.420 (10,67) 0.410 (10,41) 0.360 (9,14) 0.350 (8,89) 0.320 (8,13) 0.310 (7,87) Thermal Tab (see Note C) 1 3 0.025 (0,63) 0.031 (0,79) Seating Plane 0.004 (0,10) 0.005 (0,13) 0.001 (0,03) 0.100 (2,54) 0.200 (5,08) 0.010 (0,25) M 0.010 (0,25) NOM Gage Plane 0.041 (1,04) 0.031 (0,79) 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. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ("CRITICAL APPLICATIONS"). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK. In order to minimize risks associated with the customer's applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. 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. Copyright (c) 1998, Texas Instruments Incorporated |
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