OM7639SM OM7640SM OM7641SM SURFACE MOUNT POSITIVE VOLTAGE REGULATOR, 3-TERMINAL, FIXED VOLTAGE Isolated Hermetic Surface Mount Package 1.5 Amp, +5V, +12V, +15V Positive Voltage Regulators FEATURES • • • • • • • Small Hermetic Surface Mount Package Chip Isolated From Package Output Voltages: 5V, 12V, 15V Output Voltages Set Internally To ±1% 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 hermetic metal surface mount 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% of nominal output voltage. Standard voltages are 5V, 12V, and 15V. These units are ideally suited for Military applications where a hermetically sealed surface mount package is required. 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.5W TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W Thermal Resistance: θJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2°C/W θJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W Lead Temperature at Case (5 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225°C 4 11 R1 Supersedes 1 05 R0 3.5 - 135 3.5 OM7639SM - OM7641SM ELECTRICAL CHARACTERISTICS 5 Volt VIN = 10V, Io = 500mA, -55°C ≤ TA ≤ 125°C (unless otherwise specified) Parameter Symbol Test Conditions Min. Max. Unit Output Voltage VOUT TA = 25°C 4.92 5.08 V 4.85 5.15 V 5 mV 12 mV VIN = 7.5V to 20V Line Regulation VRLINE • VIN = 7.5V to 20V • (Note 1) VIN = 8.0V to 12V Load Regulation VRLOAD 4 mV • 10 mV 12 mV • 25 mV 6 mV • 15 mV IO = 5mA to 1.5 Amp (Note 1) IO = 250mA to 750 mA Standby Current Drain 6 mA 6.5 mA VIN = 7.5V to 20V • • 0.8 mA IO = 5mA to 1000mA • 0.5 mA ISCD Standby Current Drain ∆ISCD Change With Line (Line) Standby Current Drain ∆ISCD Change With Load (Load) Dropout Voltage VDO TA = 25°C, ∆VOUT = 100mV, IO = 1.0A Peak Output Current IO (pk) TA = 25°C Short Circuit Current IDS VIN = 35V 1.5 • (Note 2) 2.5 V 3.3 A 1.2 A 2.8 A ∆VIN f =120 Hz, ∆VIN = 10V ∆VOUT (Note 3) NO TA = 25°C, f =10 Hz to 100KHz 40 Long Term Stability ∆VOUT TA = 25°C, t = 1000 hrs. 75 (Note 3) ∆t Ripple Rejection Output Noise Voltage 66 • dB 60 dB (Note 3) 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 50 mV VIN = 14.5V to 27V Line Regulation VRLINE • VIN = 14.5V to 27V • (Note 1) VIN = 16V to 22V Load Regulation VRLOAD mV • 30 mV 32 mV • 60 mV 20 mV IO = 250mA to 750 mA • Standby Current Drain ISCD Standby Current Drain ∆ISCD Change With Line (Line) Standby Current Drain ∆ISCD Change With Load (Load) 40 mV 6.0 mA • • 6.5 mA VIN = 15V to 30V 0.8 mA IO = 5mA to 1000mA • 0.5 mA • Dropout Voltage VDO ∆VOUT = 100mV, IO = 1.0A Peak Output Current IO (pk) TA = 25°C Short Circuit Current IDS VIN = 35V 1.5 • (Note 2) 2.5 V 3.3 A 1.2 A 2.8 A ∆VIN f =120 Hz, ∆VIN = 10V ∆VOUT (Note 3) NO TA = 25°C, f =10 Hz to 100KHz 40 Long Term Stability ∆VOUT TA = 25°C, t = 1000 hrs. 120 (Note 3) ∆t Ripple Rejection Output Noise Voltage Unit 9 IO = 5mA to 1.5 Amp (Note 1) 3.5 µV/V 61 • dB 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. 3.5 - 136 OM7639SM - OM7641SM ELECTRICAL CHARACTERISTICS 15 Volt VIN = 23V, Io = 500mA, -55°C ≤ TA ≤ 125°C (unless otherwise specified) Parameter Symbol Test Conditions Min. Max. 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 Change With Line (Line) Standby Current Drain ∆ISCD Change With Load (Load) 50 mV 15 mV 25 mV 35 mV 75 mV 21 mV 45 mV 6.0 mA 6.5 mA VIN = 18.5V to 30V • • 0.8 mA IO = 5mA to 1000mA • 0.5 mA 2.5 V 3.3 A ISCD Standby Current Drain Dropout Voltage VDO TA = 25°C, ∆VOUT = 100mV, IO = 1.0A Peak Output Current IO (pk) TA = 25°C Short Circuit Current IDS VIN = 35V 1.5 • (Note 2) 1.2 A 2.8 A ∆VIN f =120 Hz, ∆VIN = 10V ∆VOUT (Note 3) NO TA = 25°C, f =10 Hz to 100KHz 40 Long Term Stability ∆VOUT TA = 25°C, t = 1000 hrs. 150 (Note 3) ∆t Ripple Rejection Output Noise Voltage Unit 54 • dB 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 DROPOUT VOLTAGE 2.5 Tj = -55°C 3 Output Current (A) Input To Output Differential (V) 3.5 2.5 2 Tj = 25°C 1.5 Tj = 150°C 1 0.5 ∆VOUT = 100mV RIPPLE REJECTION 100 IOUT = 1A 2 IOUT = 500mA 1.5 1 IOUT = 0A 0.5 ∆VOUT = 100MV Ripple Rejection (dB) PEAK OUTPUT CURRENT VOUT = 5V 80 60 3.5 40 VIN - V = 8VDC +3.5Vrms IOUT = 1A Tj = 25°C 20 0 0 0 0 5 10 15 20 25 30 Input To Output Differential (V) 35 -75-50 -25 0 2 5 5 0 7 5 100 125150 Junction Temperature (°C) 3.5 - 137 10 100 1k 10k Frequency (Hz) OM7639SM - OM7641SM TYPICAL APPLICATIONS FIXED OUTPUT REGULATOR INPUT 1 CIRCUIT FOR INCREASING OUTPUT VOLTAGE OUTPUT 2 INPUT OM7639SM 1 0.33 µFt 2 OUTPUT OM7639SM L R1 Vxx 0.1 µF* 3 3 0.33 µF 0.1 µF IQ R2 VO = Vxx (1 +R2) + IQR2 R1 * Increasing value of output capacitor improves system transient response t Required only if regulator is located an appreciable distance from power supply filter. HIGH OUTPUT CURRENT, SHORT CIRCUIT PROTECTED OUTPUT 2 1 OM7639SM 3 2N6124 R1 3Ω INPUT 2N4398 RSC INPUT ADJUSTABLE OUTPUT REGULATOR, 7 TO 30 VOLTS 2 1 OUTPUT 0.33 µF 0.1 µF 3 0.1 µF - 0.33 µF OM7639SM LM741 + 1KΩ 10K PIN CONNECTION MECHANICAL OUTLINE .425L L 2 .100L 1 .425L L .200L .035 WIDEL FLAT 3 PLCS.L 3 3.5 L .350 MIN.L L ± .020L .115L .160L .020L .080 L Pin 1: Pin 2: Pin 3: Case: Ground VIN VOUT Isolated