COM7805T COM7812T COM7815T (COTS) COMMERCIAL OFF-THE-SHELF POSITIVE FIXED VOLTAGE REGULATORS IN TO-257 PA C KThree Terminal, Fixed Voltage, 1.5 Amp Precision Positive Regulators In Hermetic JEDEC TO-257AA Package FEATURES • • • • • • Isolated Hermetic Package, JEDEC TO-257AA Outline Output Voltages: 5V, 12V, 15V Output Voltages Set Internally ±2% Built-In Thermal Overload Protection Short Circuit Current Limiting Standard Off-The-Shelf DESCRIPTION These three terminal positive regulators are supplied in a hermetically sealed metal package whose outline is similar to the industry standard TO-220 plastic package. All protective features are designed into the circuit including thermal shutdown, current limiting and safe-area control. With heat sinking, they can deliver over 1.5 amps of output current. These units feature internally trimmed output voltages to +/- 2% of nominal voltage. Standard voltages are 5V, 12V, and 15V. However, other voltages are available up to 24 volts. These units are ideally suited for Military applications where a hermetically sealed package is required. ABSOLUTE MAXIMUM RATINGS @ 25°C Input Voltage.................................................................. 35 V Operating Junction Temperature Range .......................... - 55°C to + 150°C Storage Temperature Range ..................................... - 65°C to + 150°C Typical Power/Thermal Characteristics: Rated Power @ 25° C TC .............................................. 17.5W TA ................................................. 3 W Thermal Resistance qJC ........................................... 4.2°C/W qJA ............................................ 42°C/W 3.3 - 1 3.3 COM7800T Series ELECTRICAL CHARACTERISTICS 5 Volt V IN = 10V, Io = 500mA, -55°C TA 125°C (unless otherwise specified) Parameter Symbol Test Conditions Min. Max. Output Voltage VO U T TA = 25°C 4.9 5.1 V 4.8 5.2 V V IN = 7.5V to 20V Line Regulation • V IN = 7.5V to 20V V RLINE (Note 1) 5 mV • 12 mV 4 mV • 10 mV 12 mV • 25 mV 6 mV • 15 mV V IN = 8.0V to 12V Load Regulation IO = 5mA to 1.5 Amp V RLOAD (Note 1) IO = 250mA to 750 mA Standby Current Drain 6 mA 6.5 mA V IN = 7.5V to 20V • • 0.8 mA IO = 5mA to 1000mA • 0.5 mA IS C D Standby Current Drain DIS C D Change With Line (Line) Standby Current Drain DIS C D Change With Load (Load) Dropout Voltage VD O TA = 25°C, DV O U T = 100mV, IO = 1.0A Peak Output Current IO (pk) TA = 25°C Short Circuit Current ID S V IN = 35V 1.5 • (Note 2) Ripple Rejection Output Noise Voltage DV IN f =120 Hz, DV IN = 10V DV O U T (Note 3) NO TA = 25°C, f =10 Hz to 100KHz • 2.5 V 3.3 A 1.2 A 2.8 A 66 dB 60 dB 40 (Note 3) µV/V RMS Long Term Stability DV O U T (Note 3) Dt ELECTRICAL CHARACTERISTICS TA = 25°C, t = 1000 hrs. 12 Volt 75 V IN = 19V, Io = 500mA, -55°C TA mV 125°C (unless otherwise specified) Parameter Symbol Test Conditions Min. Max. Output Voltage VO U T TA = 25°C 11.76 12.24 V 11.6 12.4 V 18 mV V IN = 14.5V to 27V Line Regulation V RLINE • V IN = 14.5V to 27V • (Note 1) V IN = 16V to 22V • Load Regulation V RLOAD IO = 5mA to 1.5 Amp • (Note 1) IO = 250mA to 750 mA • Standby Current Drain 3.3 Unit DIS C D Change With Line (Line) Standby Current Drain DIS C D Change With Load (Load) mV 30 mV 32 mV 60 mV 20 mV 40 mV mA 6.5 mA V IN = 15V to 30V 0.8 mA IO = 5mA to 1000mA • 0.5 mA • 2.5 V 3.3 A Dropout Voltage VD O DV O U T = 100mV, IO = 1.0A IO (pk) TA = 25°C Short Circuit Current ID S V IN = 35V 1.5 • (Note 2) Output Noise Voltage mV 9 6.0 Peak Output Current Ripple Rejection 50 • • IS C D Standby Current Drain Unit DV IN f =120 Hz, DV IN = 10V DV O U T (Note 3) NO TA = 25°C, f =10 Hz to 100KHz • 1.2 A 2.8 A 61 dB 54 dB 40 (Note 3) µV/V RMS Long Term Stability DV O U T (Note 3) Dt TA = 25°C, t = 1000 hrs. 120 mV Notes: 1. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used. Changes in output voltage due to heating effects must be taken into account separately. 2. Short Circuit protection is only assured up to VIN = 35V. 3. If not tested, shall be guaranteed to the specified limits. The • denotes the specifications which apply over the full operating temperature range. 3.3 - 2 COM7800T Series ELECTRICAL CHARACTERISTICS 15 Volt V IN = 23V, Io = 500mA, -55°C TA 125°C (unless otherwise specified) Parameter Symbol Test Conditions Min. Max. Unit Output Voltage VO U T TA = 25°C 14.7 15.3 V 14.5 15.5 V 20 mV 50 mV • V IN = 18.5V to 30V Line Regulation V IN = 17.5V to 30V V RLINE • (Note 1) V IN = 20V to 26V • Load Regulation IO = 5mA to 1.5 Amp V RLOAD • IO = 5mA to 1.0 Amp (Note 1) IO = 250mA to 750 mA • Standby Current Drain DIS C D Change With Line (Line) Standby Current Drain DIS C D Change With Load (Load) mV 35 mV 75 mV 21 mV 45 mV 6.0 mA 6.5 mA V IN = 18.5V to 30V 0.8 mA IO = 5mA to 1000mA • 0.5 mA 2.5 V Dropout Voltage VD O TA = 25°C, DV O U T = 100mV, IO = 1.0A Peak Output Current IO (pk) TA = 25°C Short Circuit Current ID S V IN = 35V DV IN f =120 Hz, DV IN = 10V 1.5 • (Note 2) Ripple Rejection mV 25 • • IS C D Standby Current Drain 15 3.3 A 1.2 A 2.8 • dB DV O U T (Note 3) NO TA = 25°C, f =10 Hz to 100KHz 40 Long Term Stability DV O U T TA = 25°C, t = 1000 hrs. 150 (Note 3) Dt Output Noise Voltage A 54 52 dB µV/V (Note 3) RMS mV Notes: 1. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used. Changes in output voltage due to heating effects must be taken into account separately. 2. Short Circuit protection is only assured up to VIN = 35V. 3. If not tested, shall be guaranteed to the specified limits. The • denotes the specifications which apply over the full operating temperature range. TYPICAL PERFORMANCE CHARACTERISTICS PEAK OUTPUT CURRENT DROPOUT VOLTAGE Tj = - 2.5 Tj = 25°C 2 1.5 Tj = 150°C 1 0.5 DV O U T = 100mV 0 0 5 10 15 20 25 30 35 100 3.3 IO U T = 1A 2 IO U T = 1.5 IOUT = 0A 1 0.5 0 80 V O U T = 5V 60 40 V IN - V = 8VDC + 3.5 Vrms IOUT = 1A Tj = 25°C 20 DV O U T = 100MV 0 -75 -50 -25 Ripple Rejection (dB) Input To Output Differential (V) 3 Output Current (A) RIPPLE REJECTION 2.5 3.5 25 50 75 100 125 150 10 Input To Output Differential (V) Junction Temperature (°C) 3.3 - 3 100 1k 10k Frequency (Hz) 100k COM7800T Series TYPICAL APPLICATIONS Fixed Output Regulator INPUT Circuit For Increasing Output Voltage OUTPUT COM78XX OM7662SC INPUT OUTPUT COM78XX OM7605SC VXX 1µFt R1 0.1µF* 1µF 0.1µF IQ R2 R2 VO = VXX (1+ R1 ) + IQ R2 *Increasing value of output capacitor improves system transient response. Required only if regulator is located an appreciable distance from power supply filter. High Output Current, Short Circuit Protected INPUT RSC R1 Adjustable Output Regulator, 7 To 30 Volts 2N4398 INPUT 2N6124 OM7662SC COM78XX OUTPUT 0.33µF + MECHANICAL OUTLINE TO-257AA 0.1µF LM741 1µF 1µF OUTPUT OM7662SC COM78XX 10K PIN CONNECTION .200 .190 .420 .410 Tab .045 .035 3.3 .665 .645 .150 .140 .537 .527 .430 .410 .038 MAX. .750 .500 .035 .025 .100 TYP. .005 .120 TYP. COM78XXT Isolated Front View Pin 1: Input Pin 2: Ground Pin 3: Output Tab: Isolated 1 2 3 Note: •Case is metal/hermetically sealed glass feedthroughs •Isolated Tab 205 Crawford Street, Leominster, MA 01453 USA (978) 534-5776 FAX (978) 537-4246