OM1322SMM OM1322NMM OM1322NKM OM1322NTM OM1322STM OM1322N2M 1.5 AMP NEGATIVE ADJUSTABLE VOLTAGE REGULATOR APPROVED TO DESC DRAWING 7703403 Three Terminal, Precision Adjustable Negative Voltage Regulator In Hermetic Style Packages (LM137) Please see mechanical outlines herein FEATURES * * * * * Similar To Industry Standard LM137 Approved To DESC Standardized Military Drawing Number 7703403 Built In Thermal Overload Protection Short Circuit Current Limiting Available In Six Package Styles 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 -37 volts using external resistors. ABSOLUTE MAXIMUM RATINGS Tc @ 25C Power Dissipation Case 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 W Case-All Others. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 W Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to + 150C Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . 300C Thermal Resistance, Junction to Case: Case 2, LCC-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17C/W Case U & M, TO-257 (Isol) and SMD-3 . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2C/W Case T&N, TO-257 (Non-Isol) and SMD-1 . . . . . . . . . . . . . . . . . . . . . . . 3.5C/W Case Y, TO-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0C/W Maximum Output Current: Case 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 A Case-All Others. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A Recommended Operating Conditions: Output Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-1.2 to -37 VDC Ambient Operating Temperature Range (TA) . . . . . . . . . . . . . . . - 55C to + 125C Input Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -4.25 to -41.25 VDC 4 11 R2 Supersedes 1 07 R1 3.5 - 9 3.5 OM1322NTM, OM1322STM, OM1322NKM, OM1322SMM, OM1322NMM, OM1322N2M ELECTRICAL CHARACTERISTICS -55C TA 125C, IL = 8mA (unless otherwise specified) OM1322NTM, OM1322STM, OM1322NKM, OM1322SMM, OM1322NMM Parameter Symbol Test Conditions Min. Max. Reference Voltage VREF VDIFF = 3.0V, TA = 25C -1.275 -1.225 VDIFF = 3.0V * VDIFF = 40V, TA = 25C VDIFF = 40V Line Regulation RLINE 3.0 V VDIFF 40V, TA = 25C RLOAD VDIFF = 5.0V, 8mA IL 1.5A 3.0 V VDIFF 40V (Note 1) Load Regulation (Note 1) * * -1.20 -1.225 -1.30 -1.20 -9 9 -23 23 -25 25 VDIFF = 12V, 8mA IL 1.5A, TA = 25C -25 25 VDIFF = 40V, 8mA IL 200mA, TA = 25C -25 25 -25 25 -5 5 VDIFF = 40V, 8mA IL 100mA Thermal Regulation * -1.30 -1.275 VRTH * Vin = -14.6V, IL = 1.5A Unit V mV mV mV Pd = 20 Watts, t = 10 ms, TA = 25C Ripple Rejection RN f = 120 Hz, Vout = Vref IAdj VDIFF = 3.0V (Note 2) * 66 dB CAdj = 10 F Adjustment Pin Current VDIFF = 40V 3.0V VDIFF 40V Adjustment Pin IAdj (Line) Current Change IAdj (Load) VDIFF = 5V, 8mA IL 1.5A Miminum Load Current ILmin VDIFF = 3.0V, Vout = -1.4V (forced) VDIFF = 10V, Vout = -1.4V (forced) VDIFF = 40V, Vout = -1.4V (forced) Current Limit VDIFF 5V ICL * * * * * * * * VDIFF = 40V, TA = 25C (Note 2) 100 -5 -5 100 A 5 A 5 A 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. PART NUMBER DESIGNATOR 3.5 Standard Military Drawing Number Omnirel Part Number 7703403M 7703403U 7703403T 7703403Y 7703403N 77034032 OM1322SMM OM1322STM OM1322NTM OM1322 NKM OM1322NMM OM1322N2M 3.5 - 10 Omnirel Package Designation SMD-3 TO-257 (Isolated) TO-257 (non-Isolated) TO-3 SMD-1 LCC-20 OM1322NTM, OM1322STM, OM1322NKM, OM1322SMM, OM1322NMM, OM1322N2M ELECTRICAL CHARACTERISTICS -55C TA 125C, IL = 8mA (unless otherwise specified) OM1322N2M Parameter Symbol Test Conditions Min. Max. Reference Voltage VREF VDIFF = 3.0V, TA = 25C -1.275 -1.225 -1.30 -1.20 -1.275 -1.225 -1.30 -1.20 VDIFF = 3.0V * VDIFF = 40V, TA = 25C VDIFF = 40V Line Regulation * 3.0 V VDIFF 40V, TA = 25C RLINE 3.0 V VDIFF 40V (Note 1) Load Regulation VDIFF = 5.0V, 8mA IL 200mA RLOAD (Note 1) 9 -23 23 -25 25 VDIFF = 15V, 8mA IL 200mA, TA = 25C -25 25 VDIFF = 40V, 8mA IL 150mA, TA = 25C -25 25 -25 25 -5 5 VDIFF = 40V, 8mA IL 50mA Thermal Regulation * * -9 VRTH * Vin = -16.25V, IL = 330mA Unit V mV mV mV Pd = 5 Watts, t = 10 ms, TA = 25C Ripple Rejection RN * f = 120 Hz, Vout = Vref (Note 2) 66 dB CAdj = 10 F Adjustment Pin Current VDIFF = 3.0V IAdj VDIFF = 40V Adjustment Pin IAdj (Line) 3.0V VDIFF 40V Current Change IAdj (Load) VDIFF = 5V, 8mA IL 500 mA Miminum Load Current ILmin VDIFF = 3.0V, Vout = -1.4V (forced) VDIFF = 10V, Vout = -1.4V (forced) VDIFF = 40V, Vout = -1.4V (forced) Current Limit VDIFF 5V ICL VDIFF = 40V, TA = 25C (Note 2) * * * * * * * * 100 100 A -5 5 A -5 5 A 3.0 3.0 mA 5.0 0.5 1.8 0.15 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. 2. If not tested, shall be guaranteed to the specified limits. 3. The * denotes the specifications which apply over the full operating temperature range. * Cin is required if regulator is located more than 4 inches from power supply filter. A 1 F solid tantalum or 10 F aluminum electrolytic is recommended. IPROG + CIN* + R2 1.0F CO** R1 120 1.0F ** Co is necessary for stability. A 1 F solid tantalum or 10 F aluminum electrolytic is recommended. IAdj VIN -VIN VOUT OM1322STM -VOUT 3.5 - 11 Vout = -1.25 V (1 +R2) R1 3.5 OM1322NTM, OM1322STM, OM1322NKM, OM1322SMM, OM1322NMM, OM1322N2M MECHANICAL OUTLINE .425N .200N .190N 1 N .045N .035N .100N .200N 3 N .420N .410N .425N .035 WIDEN FLAT 3 PLCS.N 2 .665N .645N .150N .140N .537N .527N N .350 MIN.N .430N .410N 1 2 3 N .020N .115N .160N .020N .080 N .038 MAX.N OM1322SMM .750N .500N .120 TYP.N .100 TYP.N .035N .025N Front View Pin 1 - Adjust Pin 2 - Output Pin 3 - Input Case - Isolated N .005N OM1322STM Isolated OM1322NTM 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 .140 .015 .140 .140 1 2 .075 .075 .157 .030 MIN. 2 1 .415 3 .062 3 .375 OM1322NMM 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. .020 X45 REF. (.003) 0.450 0.250 0.043 0.038 .040 .075 (.010) TYP. 4 .010 3 .025 TYP. 2 1 9 .160 SQ. REF. 1 .085 0.312 MIN. SEATING PLANE .009 R. 20 PLCS. .065 0.440 0.420 13 19 0.225 0.205 0.161 0.151 0.525 R. MAX. .003 .025 SQ. TYP. 14 18 .050 TYP. .050 (.005) TYP. 2 PLCS. .040 X45 REF (3 PL) OM1322N2M 3.5 OM1322NKM Pin 1 - Adjust Pin 2 - Output Case - Input Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 Pin 10 VOUT VOUT(Sense) NC NC NC NC NC NC NC 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. VIN NC NC NC NC ADJUST NC NC NC NC