RH137 Negative Adjustable Regulator U W W W U DESCRIPTIO ABSOLUTE The RH137 negative adjustable regulator will deliver up to 1.5A output current over an output voltage range of –1.2V to – 22V. Power Dissipation ............................... Internally Limited Input-to-Output Voltage Differential ......................... 30V Operating Junction Temperature Range ......................... – 55°C to 150°C Storage Temperature Range ................. – 65°C to 150°C Lead Temperature (Soldering, 10 sec).................. 300°C Every effort has been made to make these devices easy to use and difficult to damage. Internal current and power limiting coupled with true thermal limiting prevents device damage due to overloads or shorts, even if the regulator is not fastened to a heat sink. AXI U RATI GS , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Maximum reliability is attained with Linear Technology’s advanced processing techniques combined with a 100% burn-in in the thermal limit mode. This assures that all device protection circuits are working and eliminates field failures experienced with other regulators that receive only standard electrical testing. The wafer lots are processed to Linear Technology’s inhouse Class S flow to yield circuits usable in stringent military applications. U W U U BUR -I CIRCUIT U PACKAGE/ORDER I FOR ATIO BOTTOM VIEW ADJ 1 2 RH137 –30V VIN ADJ 2k VIN 3 OUTPUT VOUT CASE IS INPUT H PACKAGE 3-LEAD TO-39 METAL CAN 243Ω BOTTOM VIEW RH137 BI VOUT 2 CASE IS VIN 1 ADJ K PACKAGE 2-LEAD TO-3 METAL CAN (STEEL) 1 RH137 TABLE 1: ELECTRICAL CHARACTERISTICS MIN TA = 25°C TYP MAX SUBGROUP SYMBOL PARAMETER CONDITIONS VREF ⏐VIN – VOUT⏐ = 5V, IOUT = 10mA –1.225 –1.275 1 3V ≤ ⏐VIN – VOUT⏐ ≤ 30V, 10mA ≤ IOUT ≤ IMAX, P ≤ PMAX –1.200 –1.300 1 Reference Voltage NOTES (Preirradiation) (Note 1) – 55°C ≤ TA ≤ 150°C MIN TYP MAX SUBGROUP UNITS V –1.200 –1.300 2, 3 V ΔVOUT ΔVIN Line Regulation 3V ≤ ⏐VIN – VOUT⏐ ≤ 30V 2 0.02 1 0.05 2, 3 %/V ΔVOUT ΔIOUT Load Regulation 10mA ≤ IOUT ≤ IMAX, ⏐VOUT⏐ ≤ 5V 10mA ≤ IOUT ≤ IMAX, ⏐VOUT⏐ ≥ 5V 2 2 25 0.5 1 1 50 1 2, 3 2, 3 mV % Thermal Regulation 10ms Pulse 0.02 1 Ripple Rejection VOUT = –10V, f = 120Hz, CADJ = 0 VOUT = –10V, f = 120Hz, CADJ = 10μF 3 66 2, 3 μA 10mA ≤ IOUT ≤ IMAX 3V ≤ ⏐VIN – VOUT⏐ ≤ 30V 5 5 1 1 5 5 2, 3 2, 3 μA μA Minimum Load Current ⏐VIN – VOUT⏐ = 30V ⏐VIN – VOUT⏐ ≤ 10V 5 3 1 1 5 3 2, 3 2, 3 mA mA Current Limit ⏐VIN – VOUT⏐ ≤ 15V H Package K Package 5 5 0.5 1.5 1 1 2, 3 2, 3 A A ⏐VIN – VOUT⏐ = 30V H Package K Package 5 5 0.15 0.24 1 1 Adjust Pin Current Change IMIN ΔVOUT ΔTemp Temperature Stability –55°C ≤ TJ ≤ 125°C 3 ΔVOUT ΔTime Long Term Stability 3 en RMS Output Noise 10Hz ≤ f ≤ 10kHz θJC Thermal Resistance (Junction to Case) H Package K Package TA = 125°C SYMBOL PARAMETER CONDITIONS Reference Voltage Line Regulation OUT Load Regulation ΔIOUT 2 A A % 1 % 0.003 3 3 10KRAD(Si) NOTES MIN MAX ⏐VIN – VOUT⏐ ≤ 5V, IOUT = 10mA % °C/W °C/W 15 3 (Postirradiation) (Note 4) 20KRAD(Si) MIN MAX 50KRAD(Si) MIN MAX 100KRAD(Si) MIN MAX 200KRAD(Si) MIN MAX UNITS –1.225 –1.275 –1.225 –1.275 –1.225 –1.275 –1.225 –1.275 –1.22 –1.28 3V ≤ ⏐VIN – VOUT⏐ ≤ 30V, 10mA ≤ IOUT ≤ IMAX, P ≤ PMAX OUT 0.5 1.5 0.6 TABLE 1A: ELECTRICAL CHARACTERISTICS ΔV dB 100 ΔIADJ ΔVIN 66 1 Adjust Pin Current ΔV dB 100 IADJ VREF %/W 60 –1.2 –1.3 –1.2 –1.3 –1.2 –1.3 –1.2 –1.3 –1.2 V –1.3 V 3V ≤ ⏐VIN – VOUT⏐ ≤ 30V, 2 0.02 0.02 0.02 0.02 0.02 %/V 10mA ≤ IOUT ≤ IMAX, 2 25 25 25 25 25 mV 10mA ≤ IOUT ≤ IMAX, ⏐VOUT⏐ ≥ 5V 2 0.5 0.5 0.5 0.5 0.5 % ⏐VOUT⏐ ≤ 5V RH137 TABLE 1A: ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS IADJ Adjust Pin Current ΔIADJ Adjust Pin Current Change IMIN Minimum ⏐VIN – VOUT⏐ = 30V Load Current ⏐VIN – VOUT⏐ ≤ 10V (Postirradiation) (Note 4) 10KRAD(Si) NOTES MIN MAX 20KRAD(Si) MIN MAX 50KRAD(Si) MIN MAX 100KRAD(Si) MIN MAX 100 100 100 100 100 μA 5 5 5 5 5 5 5 5 5 5 μA μA 5 3 5 3 5 3 5 3 5 3 mA mA 10mA ≤ IOUT ≤ IMAX 3V ≤ ⏐VIN – VOUT⏐ ≤ 30V 200KRAD(Si) MIN MAX UNITS Current Limit H Package ⏐VIN – VOUT⏐ ≤ 15V ⏐VIN – VOUT⏐ = 30V 0.5 0.15 0.5 0.15 0.5 0.15 0.5 0.15 0.5 0.15 A A K Package ⏐VIN – VOUT⏐ ≤ 15V ⏐VIN – VOUT⏐ = 30V 1.5 0.24 1.5 0.24 1.5 0.24 1.5 0.24 1.5 0.24 A A Note 3: Guaranteed by design, characterization or correlation to other tested parameters. Note 4: TJ = 25°C unless otherwise noted. Note 5: ISC is tested at the ambient temperatures of 25°C and –55°C. ISC cannot be tested at the maximum ambient temperature of 150°C due to the high power level required. ISC specification at 150°C ambient is guaranteed by characterization and correlation to 25°C testing. Note 1: Unless otherwise specified, these specifications apply for ⏐VIN – VOUT⏐= 5V; and IOUT = 0.1A for the H package (TO-39) and IOUT = 0.5A for the K package (TO-3) package. Although power dissipation is internally limited, these specifications are applicable for power dissipations of 2W for the TO-39 and 20W for the TO-3. IMAX is 0.2A for the TO-39 and 1.5A for the TO-3 package. Note 2: Regulation is measured at a constant junction temperature using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification for thermal regulation. U W TABLE 2: ELECTRICAL TEST REQUIRE E TS MIL-STD-883 TEST REQUIREMENTS PDA Test Notes The PDA is specified as 5% based on failures from group A, subgroup 1, tests after cooldown as the final electrical test in accordance with method 5004 of MIL-STD-883. The verified failures of group A, subgroup 1, after burn-in divided by the total number of devices submitted for burn-in in that lot shall be used to determine the percent for the lot. Linear Technology Corporation reserves the right to test to tighter limits than those given. SUBGROUP Final Electrical Test Requirements (Method 5004) 1*,2,3 Group A Test Requirements (Method 5005) 1,2,3 Group B and D End Point Electrical Parameters (Method 5005) 1,2,3 * PDA Applies to subgroup 1. See PDA Test Notes. TOTAL DOSE BIAS CIRCUIT +15V 243Ω 2k 1 RH137 OUTPUT ADJ 2 VIN CASE –15V RH137 TDBC Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 3 RH137 U W TYPICAL PERFORMANCE CHARACTERISTICS Reference Voltage Current Limit 1.28 3V ≤ ⏐VIN – VOUT⏐ ≤ 30V 10mA ≤ IOUT ≤ IMAX 2.5 1.25 1.24 1.5 1.0 ⏐VIN – VOUT⏐= 30V 0.5 1.23 –0.5 1 10 100 TOTAL DOSE KRAD (Si) 1000 10 100 TOTAL DOSE KRAD (Si) 1 1 10 100 TOTAL DOSE KRAD (Si) Regulation (VIN – VOUT) = 10V 12 1.5 1.0 0.5 REGULATION (mV) 2.0 2.0 1.5 1.0 0.5 0 1000 1000 RH137 G03 2.5 DROPOUT VOLTAGE (V) MINIMUM LOAD CURRENT (mA) 40 1000 14 3.0 ⏐VIN – VOUT⏐ = 10V 10 100 TOTAL DOSE KRAD (Si) 60 Dropout Voltage 2.5 1 70 RH137 G02 Minimum Load Current 3.0 80 50 0 RH137 G01 0 ADJUST CURRENT (μA) 1.26 ⏐VIN – VOUT⏐ = 30V 90 ⏐VIN – VOUT⏐ = 5V 2.0 CURRENT LIMIT (A) REFERENCE VOLTAGE (V) 1.27 1.22 Adjust Current 100 3.0 10 8 6 LOAD 4 2 LINE 0 1 RH137 G04 10 100 TOTAL DOSE KRAD (Si) 1000 RH137 G05 1 10 100 TOTAL DOSE KRAD (Si) 1000 RH137 G06 I.D.No. 66-10-0175 Rev. C 1007 4 Linear Technology Corporation LT 1007 REV C • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com © LINEAR TECHNOLOGY CORPORATION 1990