OM7662SC OM7663SC OM7664SC ISOLATED HERMETIC TO-258AA FIXED POSITIVE VOLTAGE REGULATORS Three Terminal, Fixed Positive Voltage, 3.0 Amp Precision Positive Regulator In Hermetic JEDEC TO-258AA Package FEATURES • • • • • • Isolated Hermetic Package. JEDEC TO-258AA Outline Ouput Voltages: 5V, 12V And 15V (Other Voltages Available) Output Volatges Set Internally To ±2% (±1% Available) Built-In Thermal Overload Protection Short Circuit Current Limiting Product Is Available Hi-Rel Screened DESCRIPTION These three terminal positive regulators are supplied in a hermetically sealed metal package whose outline is similar to the industry standard TO-247 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 3.0 amps of output current. These units feature ±2% initial voltage tolerance, with 0.3% load regulation and .01% line regulation. ABSOLUTE MAXIMUM RATINGS @ 25°C Input to Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +35V Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C Typical Power/Thermal Characteristics: Rated Power @ 25°C TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25W TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W Thermal Resistance: qJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5°C/W qJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W Note: For ±1% device, add letter “A” in front of part number (e.g. OMA 7662SC). 4 11 R4 3.3 - 209 3.3 OM7662SC - OM7664SC ELECTRICAL CHARACTERISTICS: 5 VOLT OUTPUT (OM7662SC) Parameter Test Conditions Min. Typ. Max. VOUT TJ = 25°C, VIN = 12 V, IO = 10 mA 4.90 5.00 5.10 8.0 V VIN 35 V, 10 mA IO 3 A; P 25 W 4.80 5.00 5.20 .03 .06 Units V Line Regulation (Note 1) 8.0 V VIN 35 V - %/V Load Regulation 10 mA IO 3.0 A - 20 55 mV Thermal Regulation TA = 25°C, 20 mS Pulse - .005 .013 %/W Ripple Rejection f = 120 Hz; VOUT = 5 V Miminum Load Current Limit VIN = 13 V, TJ = 25°C Temperature Stability RMS Output Noise TA = 25°C, 10 Hz f 10 kHz - 65 - dB - - 10 mA 3 4.5 - A - 1.0 2.0 % - .001 - % Units Note 1: Regulation is measured at a constant TJ. Changes in output due to heating must be taken into account separately. Pulse testing with low duty cycle is used. ELECTRICAL CHARACTERISTICS: 12 VOLT OUTPUT (OM7663SC) Parameter Test Conditions Min. Typ. Max. VOUT TJ = 25°C, VIN = 18 V, IO = 10 mA 11.76 12.00 12.24 15 V VIN 35 V, 10 mA IO 3 A; P 25 W 11.53 12.00 12.48 .03 .06 Line Regulation (Note 1) 15 V VIN 35 V - %/V Load Regulation 10 mA IO 3.0 A - 60 132 mV Thermal Regulation TA = 25°C, 20 mS Pulse - .005 .013 %/W Ripple Rejection f = 120 Hz; VOUT = 12 V Miminum Load Current Limit VIN = 20 V, TJ = 25°C Temperature Stability 3.3 V RMS Output Noise TA = 25°C, 10 Hz f 10 kHz - 65 - dB - - 10 mA 3 4.5 - A - 1.0 2.0 % - .001 - % Note 1: Regulation is measured at a constant TJ. Changes in output due to heating must be taken into account separately. Pulse testing with low duty cycle is used. 3.3 - 210 OM7662SC - OM7664SC ELECTRICAL CHARACTERISTICS: 15 VOLT OUTPUT (OM7664SC) Parameter Test Conditions Min. Typ. Max. VOUT TJ = 25°C, VIN = 23 V, IO = 10 mA 14.70 15.00 15.3 18 V VIN 35 V, 10 mA IO 3 A; P 25 W 14.41 15.00 15.60 - .03 .06 Line Regulation (Note 1) 18 V VIN 35 V Units V %/V Load Regulation 10 mA IO 3.0 A - 75 165 mV Thermal Regulation TA = 25°C, 20 mS Pulse -- .005 .013 %/W Ripple Rejection f = 120 Hz; VOUT = 15 V 10 mA 65 Miminum Load Current Limit VIN = 23 V, TJ = 25°C Temperature Stability RMS Output Noise TA = 25°C, 10 Hz f 10 kHz dB - - 3 4.5 - A - 1.0 2.0 % - .001 - % Note 1: Regulation is measured at a constant TJ. Changes in output due to heating must be taken into account separately. Pulse testing with low duty cycle is used. Current Limit Output Current (A) 6 TJ = -55°C TJ = 25°C 4 TJ = 150°C 2 0 0 5 10 15 20 25 30 35 Input-Output Differential (V) 3 2.5 Ripple Rejection 100 ∆VOUT = 100 mV Ripple Rejection (dB) Input-Output Differential (V) Dropout Voltage IOUT = 3 A 2 IOUT = 2 A 1.5 IOUT = 20 mA 1 0.5 -75 60 40 20 0 10 -25 25 75 125 Temperature (°C) 3.3 - 211 3.3 80 VIN - V = 8VDC +35VRMS IOUT = 1A, TJ = 25°C 100 1k 10k 100k Frequency (Hz) OM7662SC - OM7664SC TYPICAL APPLICATIONS Fixed Output Regulator INPUT Circuit For Increasing Output Voltage INPUT OUTPUT OUTPUT OM7662SC OM7662SC VXX 1µFt 0.1µF* 1µF R1 0.1µF IQ R2 R2 VO = VXX 1+ R1 + IQR2 ( *Increasing value of output capacitor improves system transient response. ) tRequired only if regulator is located an appreciable distance from power supply filter. High Output Current, Short Circuit Protected Adjustable Output Regulator, 7 To 30 Volts INPUT INPUT R1 RSC 2N4398 - 2N6124 0.33µF OUTPUT OM7662SC 1µF MECHANICAL OUTLINE 0.1µF LM741 + 1µF 10K PIN CONNECTION .270 .240 .695 .685 .165 .155 OUTPUT OM7662SC .045 .035 .835 .815 .707 .697 .550 .530 3.3 .092 MAX. .750 .500 .200 TYP. .005 .065 .055 .140 TYP. NOTES: • Case is metal/hermetically sealed • Isolated Tab 1 2 3 Front View Pin 1: Ground Pin 2: Output Pin 3: Input This device is also available in a TO-257AA package. Call the factory for test conditions and limits. 205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246