OM7636SM SURFACE MOUNT NEGATIVE ADJUSTABLE 1.0 AMP VOLTAGE REGULATOR Isolated Hermetic Surface Mount Package 1.0 Amp, 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 LM137 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 -37 volts. ABSOLUTE MAXIMUM RATINGS Input to Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V 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 - 129 OM7636SM 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 -1.275 -1.225 VDIFF = 3.0V • VDIFF = 40V, TA = 25°C VDIFF = 40V Line Regulation RLINE • 3.0 V ≤ VDIFF ≤ 40V, TA = 25°C 3.0 V ≤ VDIFF ≤ 40V (Note 1) Load Regulation RLOAD (Note 1) • • VDIFF = 5.0V, 8mA ≤ IL ≤ 1.5A VRTH Ripple Rejection RN -1.20 -1.225 -1.30 -1.20 -9 9 -23 23 -25 25 VDIFF = 12V, 8mA ≤ IL ≤ 1.5A, TA = 25°C -25 25 VDIFF = 40V, 8mA ≤ IL ≤ 200mA, TA = 25°C -25 25 -25 25 -5 5 VDIFF = 40V, 8mA ≤ IL ≤ 100mA Thermal Regulation -1.30 -1.275 • Vin = -14.6V, IL = 1.5A Unit V mV mV mV Pd = 20 Watts, t = 20 ms, TA = 25°C • f = 120 Hz, Vout = Vref (Note 2) 66 dB CAdj = 10 µF Adjustment Pin Current IAdj VDIFF = 3.0V Adjustment Pin ∆IAdj (Line) 3.0V ≤ VDIFF ≤ 40V Current Change ∆IAdj (Load) VDIFF = 5V, 8mA ≤ IL ≤ 1.5A Miminum Load Current ILmin VDIFF = 3.0V, Vout = -1.4V (forced) • • • • • • • • VDIFF = 40V VDIFF = 10V, Vout = -1.4V (forced) VDIFF = 40V, Vout = -1.4V (forced) Current Limit VDIFF ≤ 5V ICL VDIFF = 40V, TA = 25°C (Note 2) 100 100 µA -5 5 µA -5 5 µA 3.0 3.0 mA 5.0 1.5 3.5 0.24 1.2 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 .425G G 2 .100G .425G G .200G 1 .035 WIDEG FLAT 3 PLCS.G 3 3.5 G .350 MIN.G G ± .020G .115G .160G .020G .080 G Pin 1: Pin 2: Pin 3: Case: VIN Adjust VOUT Isolated