RH1083M

RH1083M_15 LINER | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 4

Technical content

7.5A Low Dropout Positive Adjustable Regulator D UESCRIPTIO The RH1083M positive adjustable regulator is designed to provide 7.5A with higher efficiency than currently avail- able devices. All internal circuitry is designed to operate down to 1V input-to-output differential and the dropout voltage is fully specified as a function of load current. Dropout is guaranteed at a maximum of 1.5V at maximum output current, decreasing at lower load currents. On-chip trimming adjusts the output voltage to 1%. Current limit is also trimmed, minimizing the stress on both the regulator and power source circuitry under overload conditions. The RH1083M is pin compatible with older 3-terminal regulators. A 10μF output capacitor is required on this new device. However, this is usually included in most regulator designs. Unlike PNP regulators, where up to 10% of the output current is wasted as quiescent current, the RH1083M quiescent current flows into the load, increasing efficiency. The wafer lots are processed to Linear Technology Corporation’s in-house Class S flow-to-yield circuits us- able in stringent military applications. Since the TO-3 package on this product cannot meet the cracked glass external visual criteria of MIL-STD-883 Method 2009, inspection for cracked glass at 100% exter- nal visual will not be performed. Instead a 100% fine/gross leak test will be performed just prior to shipment. BUR -I CIRCUITU U A UGWA WU WARBSOLUTEX I T I S Operating Junction Temperature Range RH1083M IN OUT ADJ 121Ω RH1083 BI 18V –18V CAPACITOR(S) NOT SHOWN VIN CASE IS OUTPUT ADJ K PACKAGE 2-LEAD TO-3 METAL CAN (STEEL) BOTTOM VIEW , LTC and LT are registered trademarks of Linear Technology Corporation. PACKAGE I FOR ATIOU UW

TJ = 25°C SUB- SUB- PARAMETER CONDITIONS NOTES MIN TYP MAX GROUP MIN TYP MAX GROUP UNITS Reference Voltage I OUT = 10mA, (VIN – VOUT) = 3V 3 1.238 1.250 1.262 1 V 10mA ≤ IOUT ≤ IFULLLOAD, 1.225 1.250 1.270 2,3 V 1.5V ≤ (VIN – VOUT) ≤ 25V Line Regulation I LOAD = 10mA 15V ≤ (VIN – VOUT) = 30V 0.5 1 0.05 0.5 2,3 % Load Regulation (V IN – VOUT) = 3V 10mA ≤ IOUT ≤ IFULLLOAD 1,2,3 0.1 0.3 1 0.2 0.4 2,3 % Dropout Voltage ΔVREF = 1%, IOUT = IFULLLOAD 4 1.5 1 1.3 1.5 2,3 V Current Limit (V IN – VOUT) = 5V 8.0 1 8.0 9.5 2,3 A (VIN – VOUT) = 25V 0.4 1 0.4 1.0 2,3 A Minimum Load Current (V IN – VOUT) = 25V 10 1 5.0 10 2,3 mA Thermal Regulation T A = 25°C, 30ms Pulse 0.002 0.010 1 %/W Ripple Rejection f = 120Hz, C ADJ = 25μF, 60 4 60 75 5,6 dB COUT = 25μF Tantalum, IOUT = IFULLLOAD (VIN – VOUT) = 3V Adjust Pin Current 55 120 1 120 2,3 μA Adjust Pin Current Change 10mA ≤ IOUT ≤ IFULLLOAD, 5 1 0.2 5.0 2,3 μA 1.5V ≤ (VIN – VOUT) ≤ 25V Temperature Stability 0.5 % Long-Term Stability T A = 125°C, 1000 Hours 0.3 % RMS Output Noise T A = 25°C, 10Hz ≤ f ≤ 10kHz 0.003 % (% of VOUT) Thermal Resistance Control Circuitry 5 0.6 °C/W Junction-to-Case Power Transistor 5 1.6 °C/W TABLE 1: ELECTRICAL CHARACTERISTICS (Preirradiation) –55°C ≤ TJ ≤ 125°C TOTAL DOSE BIAS CIRCUIT RH1083 VIN VOUT ADJ 150Ω RH1083 TDBC 15V –15V

TABLE 1A: ELECTRICAL CHARACTERISTICS (Postirradiation) PARAMETER CONDITIONS MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX UNITS 1.5V ≤ (VIN – VOUT) ≤ 15V Line Regulation (Notes 1, 2) I OUT = 10mA 10mA ≤ IOUT ≤ IFULL LOAD Current Limit (V IN – VOUT ) = 5V 8 8 7.95 7.85 7.75 V Minimum Load Current (V IN – VOUT ) = 25V 10 10 10 10 10 mA Adjust Pin Current 120 120 120 120 120 μA Adjust Pin Current Change 10mA ≤ IOUT ≤ IFULLLOAD 55 5 5 5 μA (Note 5) 1.5V ≤ (VIN – VOUT) ≤ 15V 10KRAD(Si) 20KRAD(Si) 50KRAD(Si) 100KRAD(Si) 200KRAD(Si) TABLE 2: ELECTRICAL TEST REQUIRE E TSUW MIL-STD-883 TEST REQUIREMENTS SUBGROUP Final Electrical Test Requirements (Method 5004) 1*,2,3 Group A Test Requirements (Method 5005) 1,2,3 Group C and D End-Point Electrical Parameters 1,2,3 (Method 5005) * PDA Applies to subgroup 1. See PDA Test Notes. Note 1: See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are measured at a constant junction temperature by low duty cycle pulse testing. Note 2: Line and load regulation are guaranteed up to the maximum power dissipation of 60W for RH1083M. Power dissipation is determined by the input-to-output differential voltage and the output current. Guaranteed maximum power dissipation will not be available over the full input-to- output voltage range. Note 3: I FULL LOAD is defined in the current limit curves in the standard data sheet. IFULLLOAD curve is defined as the minimum value of current limit as a function of input-to-output voltage. Note that the 60W power dissipation for the RH1083M is achievable over a limited range of input-to- output voltage. For compliance with 883 revision C current density specifications, the RH1083M is rated for 5A. Note 4: Dropout voltage is specified over the full output current range of the device. Test points and limits are shown on the Dropout Voltage curve in the standard data sheet. Note 5: Guaranteed by design, characterization, or correlation to other tested parameters. 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 Class B. 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. 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 represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.

Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● TELEX: 499-3977 © LINEAR TECHNOLOGY CORPORATION 1 996 LT/HP 500 0796 • PRINTED IN USA I.D. No. 66-11-1083 0796 TYPICAL PERFORMANCE CHARACTERISTICS UW TOTAL DOSE – Krad (Si) REFERENCE VOLTAGE (V) 1.26 1.25 1.24 1.23 1.22 10 100 1000 RH1083 G01 10mA ≤ Δ ≤ IOUT ≤ IFULLLOAD 1.5V ≤ (VIN – VOUT) ≤ 15V Reference Voltage TOTAL DOSE – Krad (Si) CURRENT LIMIT (A) 10.0 9.5 9.0 8.5 8.0 10 100 1000 RH1083 G03 (VIN – VOUT) = 5V TOTAL DOSE – Krad (Si) RIPPLE REJECTION (dB) 105 100 10 100 1000 RH1083 G02 (VIN – VOUT) = 3V IOUT = IFULLLOAD Ripple Rejection Current Limit Current Limit Line Regulation Load Regulation TOTAL DOSE – Krad (Si) CURRENT LIMIT (A) 1.1 1.0 0.9 0.8 0.7 10 100 1000 RH1083 G04 (VIN – VOUT) = 25V TOTAL DOSE – Krad (Si) LINE REGULATION (%) 0.3 0.2 0.1 –0.1 10 100 1000 RH1083 G05 1.5V ≤ (VIN – VOUT) ≤ 15V IOUT = 10mA TOTAL DOSE – Krad (Si) LOAD REGULATION (%) 0.2 0.1 –0.1 –0.2 10 100 1000 RH1083 G06 (VIN – VOUT) = 3V 10mA ≤ IOUT = 7.5A TOTAL DOSE – Krad (Si) DROPOUT VOLTAGE (V) 1.8 1.6 1.4 1.2 1.0 10 100 1000 RH1083 G07 IOUT = 7.5A Dropout Voltage TOTAL DOSE – Krad (Si) ADJUST PIN CURRENT (μA) 10 100 1000 RH1083 G08 (VIN – VOUT) = 3V 10mA ≤ IL ≤ IFULLLOAD Adjust Pin Current Minimum Load Current TOTAL DOSE – Krad (Si) MINIMUM LOAD CURRENT (mA) 10 100 1000 RH1083 G09 (VIN – VOUT) = 25V