OM7635SM SURFACE MOUNT POSITIVE ADJUSTABLE 1.0 AMP VOLTAGE REGULATOR Isolated Hermetic Surface Mount Package 1.0 Amp, Positive Adjustable Voltage Regulator FEATURES • • • • • • • Hermetic Isolated 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 P/N LM117 DESCRIPTION This three terminal positive 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 37 volts. ABSOLUTE MAXIMUM RATINGS Input to Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405 V 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5°C/W θJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W Lead Temperature at Case (5 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225°C 3.5 4 11 R1 Supersedes 1 05 R0 3.5 - 127 OM7635SM ELECTRICAL CHARACTERISTICS -55°C ≤ TA ≤ 125°C, IL = 8mA (unless otherwise specified) Parameter Symbol Test Conditions Min. Max. Reference Voltage VREF VDIFF = 3.0V, TA = 25°C 1.20 1.30 • • 1.20 1.30 1.20 1.30 -9 9 • -23 23 -15 15 -15 15 -15 15 VDIFF = 3.3V VDIFF = 40V Line Regulation RLINE (Note 1) 3.0V ≤ VDIFF ≤ 40V, Vout = Vref, TA = 25°C 3.3V ≤ VDIFF ≤ 40V, Vout = Vref Load Regulation RLOAD VDIFF = 3.0V, 10mA ≤ IL ≤ 1.5A, TA = 25°C • VDIFF = 3.3V, 10mA ≤ IL ≤ 1.5A (Note 1) VDIFF = 40V, 10mA ≤ IL ≤ 300mA, TA = 25°C • VDIFF = 40V, 10mA ≤ IL ≤ 195mA Thermal Regulation VRTH Vin = 14.6V, IL = 1.5A -15 15 -16 16 Unit V mV mV mV Pd = 20 Watts, t = 20 ms, TA =25°C Ripple Rejection RN (Note 2) • f = 120 Hz, Vout = Vref 66 dB CAdj = 10 µF, Iout = 100 mA Adjustment Pin Current IAdj VDIFF = 3.0V, TA = 25°C 100 • • VDIFF = 3.3V VDIFF = 40V Adjustment Pin ∆IAdj Current Change VDIFF = 3.0V, 10mA ≤ IL ≤ 1.5A, TA = 25°C VDIFF = 3.3V, 10mA ≤ IL ≤ 1.5A VDIFF = 40V, 10mA ≤ IL ≤ 300mA, TA = 25°C VDIFF = 40V, 10mA ≤ IL ≤ 195mA • • • 3.0V ≤ VDIFF ≤ 40V, TA = 25°C • 3.3V ≤ VDIFF ≤ 40V Miminum Load Current ILmin 5 -5 5 -5 5 -5 5 -5 5 -5 ICL µA 5 5.0 • • • VDIFF = 40V, VOUT = 1.4V (forced) (Note 2) µA 100 -5 VDIFF = 3.0V, VOUT = 1.4V (forced) VDIFF = 3.3V, VOUT = 1.4V (forced) Current Limit 100 VDIFF = 15V VDIFF = 40V, TA = 25°C 5.0 mA 5.0 1.5 3.5 0.18 1.5 A 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. PIN CONNECTION MECHANICAL OUTLINE .425H 2 1 H .100H .200H .425H H 3.5 .035 WIDEH FLAT 3 PLCS.H H .350 MIN.H H ± .020H .115H .160H .020H .080 H 3 Pin 1: Pin 2: Pin 3: Case: VOUT Adjust VIN Isolated