OM1327SMM OM1327NMM OM1327NKM OM1327NTM OM1327STM OM1327N2M 1.5 AMP NEGATIVE ADJUSTABLE VOLTAGE REGULATOR APPROVED TO DESC DRAWING 7703408 Three Terminal, Precision Adjustable Negative Voltage Regulator In Hermetic Style Packages (LM137AHV) Please see mechanical outlines herein FEATURES • • • • • • Similar To Industry Standard LM137AHV Approved To DESC Standardized Military Drawing Number 7703408 Built In Thermal Overload Protection Short Circuit Current Limiting Available In Six Package Styles Maximum Output Voltage Tolerance Is Guaranteed to + 1% DESCRIPTION These three terminal negative regulators are supplied in hermetically sealed packages. All protective features are designed into the circuit, including thermal shutdown, current-limiting, and safe-area control. With heat sinking, these devices can deliver up to 1.5 amps of output current. The LCC-20 device is limited to .5 amps. The unit also features output voltages that can be fixed from -1.2 volts to -47 volts using external resistors. ABSOLUTE MAXIMUM RATINGS Tc @ 25°C Power Dissipation Case 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 W Case-All Others. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 W Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 V Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65°C to + 150°C Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C Thermal Resistance, Junction to Case: Case 2, LCC-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17°C/W Case U & M, TO-257 (Isol) and SMD-3 . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2°C/W Case T&N, TO-257 (Non-Isol) and SMD-1 . . . . . . . . . . . . . . . . . . . . . . . 3.5°C/W Case Y, TO-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0°C/W Maximum Output Current: Case 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 A Case-All Others. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A Recommended Operating Conditions: Output Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-1.2 to -47 VDC Ambient Operating Temperature Range (TA). . . . . . . . . . . . . . . . - 55°C to + 125°C Input Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -4.25 to -51.25 VDC 4 11 R2 Supersedes 1 07 R1 3.5 - 29 3.5 OM1327NTM, OM1327STM, OM1327NKM, OM1327SMM, OM1327NMM, OM1327N2M ELECTRICAL CHARACTERISTICS -55°C ≤ TA ≤ 125°C, IL = 8mA (unless otherwise specified) OM1327NTM, OM1327STM, OM1327NKM, OM1327SMM, OM1327NMM Parameter Symbol Test Conditions Min. Max. Reference Voltage VREF VDIFF = 3.0V, TA = 25°C -1.262 -1.238 VDIFF = 3.0V • VDIFF = 50V, TA = 25°C VDIFF = 50V Line Regulation RLINE • (Note 1) Load Regulation • 3.0 V ≤ VDIFF ≤ 50V, TA = 25°C RLOAD VDIFF 50V, 8mA ≤ IL ≤ 110mA, TA = 25°C VDIFF = 5V, 8mA ≤ IL ≤ 1.5A, TA = 25°C (Note 1) • Thermal Regulation VRTH Vin = -14.6V, IL = 1.5A -1.28 -1.22 -1.28 -1.22 -1.28 -1.22 -6 6 -20 20 -25 25 -25 25 -50 50 -5 5 Unit V mV mV mV Pd = 20 Watts, t = 10 ms, TA = 25°C Ripple Rejection RN f = 120 Hz, Vout = Vref (Note 2) Adjustment Pin Current VDIFF = 3.0V IAdj VDIFF = 40V VDIFF = 50V Adjustment Pin ∆IAdj VDIFF = 5V, 8mA ≤ Iout ≤ 1.5A 3V ≤ VDIFF ≤ 50V, IL ≤ 8mA Current Change Miminum Load Current ILmin 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) Current Limit • 66 dB CAdj = 10 µF VDIFF = 5V ICL • • • • • • • • • • VDIFF = 50V, TA = 25°C (Note 2) 100 100 µA 100 -5 5 -6 6 µA 3.0 3.0 mA 5.0 5.0 1.5 3.5 0.2 1.0 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. PART NUMBER DESIGNATOR 3.5 Standard Military Drawing Number Omnirel Part Number 7703408M 7703408U 7703408T 7703408Y 7703408N 77034082 OM1327SMM OM1327STM OM1327NTM OM1327NKM OM1327NMM OM1327N2M 3.5 - 30 Omnirel Package Designation SMD-3 TO-257 (Isolated) TO-257 (non-Isolated) TO-3 SMD-1 LCC-20 OM1327NTM, OM1327STM, OM1327NKM, OM1327SMM, OM1327NMM, OM1327N2M ELECTRICAL CHARACTERISTICS -55°C ≤ TA ≤ 125°C, IL = 8mA (unless otherwise specified) OM1327N2M Parameter Symbol Test Conditions Reference Voltage VREF VDIFF = 3.0V, TA = 25°C VDIFF = 3.0V • VDIFF = 40V, TA = 25°C VDIFF = 40V • VDIFF = 50V, TA = 25°C VDIFF = 50V Line Regulation • 3.0 V ≤ VDIFF ≤ 50V, TA = 25°C RLINE • (Note 1) Load Regulation RLOAD (Note 1) VRTH Ripple Rejection RN Max. -1.262 -1.235 -1.28 -1.22 -1.28 -1.22 -1.28 -1.22 -1.28 -1.22 -1.28 -1.22 -10 10 -25 25 VDIFF 50V, 8mA ≤ IL ≤ 100 mA, TA = 25°C -25 25 VDIFF = 5V, 8mA ≤ IL ≤ 500 mA, TA = 25°C -31 31 -50 50 -2 2 • Thermal Regulation Min. Vin = -16.25V, IL = 330 mA Unit V mV mV mV Pd = 5 Watts, t = 10 ms, TA = 25°C • f = 120 Hz, Vout = Vref (Note 2) 66 dB CAdj = 10 µF Adjustment Pin Current VDIFF = 3.0V IAdj VDIFF = 40V VDIFF = 50V Adjustment Pin VDIFF = 5V, 8mA ≤ Iout ≤ 200 mA ∆IAdj 3V ≤ VDIFF ≤ 50V, IL ≤ 8mA Current Change Miminum Load Current VDIFF = 3.0V, Vout = -1.4V (forced) ILmin VDIFF = 10V, Vout = -1.4V (forced) VDIFF = 40V, Vout = -1.4V (forced) VDIFF = 50V, Vout = -1.4V (forced) Current Limit VDIFF = 5V ICL • • • • • • • • • • VDIFF = 50V, TA = 25°C (Note 2) 100 100 µA 100 -5 5 -6 6 µA 3.0 3.0 mA 5.0 5.0 0.5 1.8 0.1 0.65 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. TYPICAL APPLICATION * Cin is required if regulator is located more than 4 inches from power supply filter. A 1 µF solid tantalum or 10 µF aluminum electrolytic is recommended. IPROG + CIN* + R2 1.0µF CO** R1 120Ω 1.0µF ** Co is necessary for stability. A 1 µF solid tantalum or 10 µF aluminum electrolytic is recommended. IAdj VIN -VIN VOUT OM1327STM -VOUT Vout = -1.25 V (1 +R2) R1 3.5 - 31 3.5 OM1327NTM, OM1327STM, OM1327NKM, OM1327SMM, OM1327NMM, OM1327N2M MECHANICAL OUTLINE .425O .200O .190O 1 O .045O .035O .100O .200O 3 O .420O .410O .425O .035 WIDEO FLAT 3 PLCS.O 2 .665O .645O .150O .140O .537O .527O O .350 MIN.O .430O .410O 1 2 3 O ± .020O .115O .160O .020O .080 O .038 MAX.O OM1327SMM .750O .500O .120 TYP.O .100 TYP.O .035O .025O Front View Pin 1 - Adjust Pin 2 - Output Pin 3 - Input Case - Isolated O .005O .140 OM1327STM Isolated OM1327NTM Non-Isolated Front View Pin 1 - Adjust Pin 2 - Input Pin 3 - Output Tab - Isolated Front View Pin 1 - Adjust Pin 2 - Input Pin 3 - Output Tab - Input .015 .140 .140 1 2 .075 .075 .157 .415 3 .062 .375 .030 MIN. OM1327NMM Pin 1 - Adjust Pin 2 - Output Pin 3 - Input 1.197 1.53 REF. 1.177 0.875 MAX. 0.675 0.655 0.188 R. MAX. 0.135 MAX. 0.450 0.250 0.043 0.038 (±.003) 2 1 0.225 0.205 0.161 0.151 .075 (±.010) TYP. 4 .010 3 9 .160 SQ. REF. 1 13 19 0.525 R. MAX. .025 SQ. TYP. 14 18 .050 TYP. .050 (±.005) TYP. 2 PLCS. Pin 1 - Adjust Pin 2 - Output Case - Input .040 .085 .003 OM1327NKM 3.5 .020 X45° REF. 0.440 0.420 .025 TYP. 0.312 MIN. SEATING PLANE .009 R. 20 PLCS. .065 .040 X45° REF (3 PL) OM1327N2M Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 Pin 10 VIN NC NC NC NC NC NC NC ADJUST NC Pin 11 Pin 12 Pin 13 Pin 14 Pin 15 Pin 16 Pin 17 Pin 18 Pin 19 Pin 20 For additional information please see the mechanical outline section. NC VOUT VOUT NC NC NC NC NC NC VIN