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| OM7647SM SURFACE MOUNT NEGATIVE ADJUSTABLE 1.0 AMP VOLTAGE REGULATOR Isolated Hermetic Surface Mount Package 1.0 Amp, High Voltage, Negative Adjustable Voltage Regulator FEATURES * * * * * * * Isolated Hermetic Surface Mount Package Adjustable Output Voltage Eliminates Stocking Fixed Voltages Built-In Thermal Overload Protection Short Circuit Current Limiting Product Is Available Hi-Rel Screened Electrically Similar To Industry Standard Type LM137HV DESCRIPTION This three terminal negative regulator is supplied in a hermetically sealed 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 1.0 amp of output current. This unit features output voltages that can be trimmed using external resistors, from -1.2 volts to -47 volts. ABSOLUTE MAXIMUM RATINGS @ 25C Input To Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 V Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C Typical Power/Thermal Characteristics: Rated Power: TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.5W TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W Thermal Resistance: JC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0C/W JA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42C/W Max. Lead Solder Temperature for 5 sec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225C 3.5 4 11 R0 3.5 - 145 OM7647SM ELECTRICAL CHARACTERISTICS Parameter Reference Voltage Symbol VREF -55C TA 125C, IL = 8mA (unless otherwise specified) Min. -1.30 * -1.30 -1.30 * -1.30 -10 * -25 -25 Max. -1.20 -1.20 V -1.20 -1.20 10 mV 25 25 mV -25 * -45 -5 25 45 5 mV * 66 dB * * * * * * * * * 0.2 -5 -6 100 100 100 5 A 6 3.0 3.0 mA 5.0 5.0 1.0 A A Unit Test Conditions VDIFF = 3.0V, TA = 25C VDIFF = 3V VDIFF = 50V, TA = 25C VDIFF = 50V 3.0 V VDIFF 50V, TA = 25C VDIFF = 50V, 8mA IL 110mA TA = 25C VDIFF = 5V, 8mA IL 1.5A, TA = 25C Line Regulation (Note 1) Load Regulation (Note 1) RLINE RLOAD Thermal Regulation VRTH VIN = -14.6V, IL = 1.5A Pd = 20 Watts, t = 10 ms, TA = 25C f = 120 Hz, VOUT = Vref CAdj = 10 F, IOUT = 100 mA VDIFF = 3.0V VDIFF = 40V VDIFF = 50V VDIFF = 5V, 8mA IOUT 1.5A 3V VDIFF 50V VDIFF = 3.0V, VOUT = -1.4V (forced) VDIFF = 10V, VOUT = -1.4V (forced) VDIFF = 40V, VOUT = -1.4V (forced) VDIFF = 50V, VOUT = -1.4V (forced) Ripple Rejection (Note 2) Adjustment Pin Current RN IAdj Adjustment Pin Current Change Miminum Load Current IAdj ILmin Current Limit (Note 2) ICL VDIFF = 50V, TA = 25C 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. If not tested, shall be guaranteed to the specified limits. 3. The * denotes the specifications which apply over the full operating temperature range. MECHANICAL OUTLINE .425 2 .100 3.5 .200 1 3 .035 WIDE FLAT 3 PLCS. .425 Pin Connections Pin 1: VIN Pin 2: Adjust Pin 3: VOUT Case: Isolated .350 MIN. .020 .115 .160 .020 .080 |
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