OM7800IH Series ISOLATED HERMETIC TO-257AA FIXED VOLTAGE REGULATORS Three 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 (Other Voltages Available) Output Voltages Set Internally To ±1% or ±2% Built-In Thermal Overload Protection Short Ciruit Current Limiting Product Is Available Screened To OM803 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 ±1% or ±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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W Thermal Resistance qJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2°C/W qJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W Notes: Product also available in Non-Isolated construction. To order this version, delete “I” from part number. Example: Isolated Non-Isolated OM78XXIH OM78XXH Use letter “A” after part number to designate ±1% output voltage tolerance. Example: OM7805AIH 4 11 R4 Supersedes 1 07 R3 3.3 - 217 3.3 OM7800IH Series ELECTRICAL CHARACTERISTICS 5 Volt VIN = 10V, Io = 500mA, -55°C TA 125°C (unless otherwise specified) Parameter Symbol Test Conditions Min. Max. Output Voltage VOUT TA = 25°C 4.92 5.08 V 4.85 5.15 V 5 mV VIN = 7.5V to 20V Line Regulation VRLINE • VIN = 7.5V to 20V • (Note 1) VIN = 8.0V to 12V • Load Regulation VRLOAD IO = 5mA to 1.5 Amp • (Note 1) IO = 250mA to 750 mA • Standby Current Drain DISCD Change With Line (Line) Standby Current Drain DISCD Change With Load (Load) mV 10 mV 12 mV 25 mV 6 mV 15 mV mA 6.5 mA VIN = 7.5V to 20V 0.8 mA IO = 5mA to 1000mA • 0.5 mA Dropout Voltage VDO TA = 25°C, DVOUT = 100mV, IO = 1.0A IO (pk) TA = 25°C Short Circuit Current IDS VIN = 35V 1.5 • (Note 2) DVIN mV 4 • • Peak Output Current Ripple Rejection 12 6 ISCD Standby Current Drain f =120 Hz, DVIN = 10V 2.5 V 3.3 A 1.2 A 2.8 66 • (Note 3) NO TA = 25°C, f =10 Hz to 100KHz 60 40 dB Long Term Stability DVOUT TA = 25°C, t = 1000 hrs. 75 (Note 3) Dt (Note 3) µV/V RMS ELECTRICAL CHARACTERISTICS 12 Volt mV VIN = 19V, Io = 500mA, -55°C TA 125°C (unless otherwise specified) Parameter Symbol Test Conditions Min. Max. Output Voltage VOUT TA = 25°C 11.88 12.12 V 11.64 12.36 V 18 mV VIN = 14.5V to 27V Line Regulation VRLINE • VIN = 14.5V to 27V • (Note 1) VIN = 16V to 22V • Load Regulation VRLOAD IO = 5mA to 1.5 Amp • (Note 1) IO = 250mA to 750 mA • 3.3 A dB DVOUT Output Noise Voltage Unit Standby Current Drain ISCD Standby Current Drain DISCD Change With Line (Line) Standby Current Drain DISCD Change With Load (Load) mV 9 mV 30 mV 32 mV 60 mV 20 mV 40 mV 6.0 mA • • 6.5 mA 0.8 mA IO = 5mA to 1000mA • 0.5 mA • Dropout Voltage VDO DVOUT = 100mV, IO = 1.0A IO (pk) TA = 25°C Short Circuit Current IDS VIN = 35V 1.5 • (Note 2) DVIN 50 VIN = 15V to 30V Peak Output Current Ripple Rejection f =120 Hz, DVIN = 10V 2.5 V 3.3 A 1.2 A 2.8 61 • A dB DVOUT (Note 3) NO TA = 25°C, f =10 Hz to 100KHz 40 Long Term Stability DVOUT TA = 25°C, t = 1000 hrs. 120 (Note 3) Dt Output Noise Voltage Unit 54 dB (Note 3) µV/V 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. 3.3 - 218 OM7800IH Series ELECTRICAL CHARACTERISTICS 15 Volt VIN = 23V, Io = 500mA, -55°C TA 125°C (unless otherwise specified) Parameter Symbol Test Conditions Min. Max. Unit Output Voltage VOUT TA = 25°C 14.8 15.2 V 14.6 15.4 V 20 mV • VIN = 18.5V to 30V Line Regulation VRLINE VIN = 17.5V to 30V • (Note 1) VIN = 20V to 26V • Load Regulation VRLOAD IO = 5mA to 1.5 Amp (Note 1) • IO = 5mA to 1.0 Amp IO = 250mA to 750 mA • Standby Current Drain ISCD Standby Current Drain DISCD Change With Line (Line) Standby Current Drain DISCD Change With Load (Load) 25 mV 35 mV 75 mV 21 mV 45 mV 6.0 mA • • 6.5 mA 0.8 mA IO = 5mA to 1000mA • 0.5 mA Dropout Voltage VDO TA = 25°C, DVOUT = 100mV, IO = 1.0A IO (pk) TA = 25°C Short Circuit Current IDS VIN = 35V 1.5 • (Note 2) DVIN f =120 Hz, DVIN = 10V DVOUT (Note 3) NO TA = 25°C, f =10 Hz to 100KHz Output Noise Voltage mV mV VIN = 18.5V to 30V Peak Output Current Ripple Rejection 50 15 • 2.5 V 3.3 A 1.2 A 2.8 A 54 dB 52 dB 40 µV/V (Note 3) RMS Long Term Stability DVOUT (Note 3) Dt TA = 25°C, t = 1000 hrs. 150 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 DROPOUT VOLTAGE 2.5 Tj = -55°C 2.5 Tj = 25°C 2 1.5 Tj = 150°C 1 0.5 DVOUT = 100mV 0 0 5 10 15 20 25 30 35 100 IOUT = 1A 2 IOUT = 500mA 1.5 IOUT = 0A 1 0.5 0 80 60 40 VIN - V = 8VDC + 3.5 Vrms IOUT = 1A Tj = 25°C 25 50 75 100 125 150 10 Input To Output Differential (V) 3.3 VOUT = 5V 20 DVOUT = 100MV 0 -75 -50 -25 Ripple Rejection (dB) 3 Input To Output Differential (V) 3.5 Output Current (A) RIPPLE REJECTION Junction Temperature (°C) 3.3 - 219 100 1k 10k Frequency (Hz) 100k OM7800IH Series TYPICAL APPLICATIONS Fixed Output Regulator INPUT Circuit For Increasing Output Voltage OUTPUT OM78XX OM7662SC INPUT OUTPUT OM78XX 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. tRequired 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 OUTPUT OM7662SC OM78XX 0.33µF + MECHANICAL OUTLINE 10K PIN CONNECTION .200 .190 .420 .410 0.1µF LM741 1µF 1µF 3.3 OUTPUT OM7662SC OM78XX Tab .045 .035 .665 .645 .150 .140 .537 .527 .430 .410 .038 MAX. .750 .500 .035 .025 .100 TYP. .005 .120 TYP. OM78XXIH Isolated Front View Pin 1: Input Pin 2: Ground Pin 3: Output Tab: Isolated OM78XXH Non-Isolated Front View Pin 1: Input Pin 2: Ground Pin 3: Output Tab: Ground 1 2 3 Note: • Case is metal/hermetically sealed • Isolated Tab 205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246