Standard Products VRG8651/VRG8652 Dual Voltage Regulator, 1.0 Amp Pos and 3.0 Amp Neg Low Dropout (LDO), Adjustable Radiation Tolerant www.aeroflex.com/voltreg April 26, 2012 FEATURES Manufactured using Space Qualified RH1086 and RH1185 die Packaging - Hermetic metal Radiation performance - Thru-hole or Surface mount - Total dose > 100 krad (Si), - 8 Leads, .755"L x .415"W x .200"Ht Dose rate = 50 - 300 rads(Si)/s - Power package Two-Independent voltage regulators - Weight - 6 gm max Thermal shutdown Designed for aerospace and high reliability space Adjustable Output Voltages applications Positive regulator features (RH1086) - Output voltage adjustable: 1.25V to 23V - Dropout voltage: 1.3V at 1.0 Amps - 3-Terminal - Output current: 1.0A, See note 13 - Voltage reference: 1.25V +2%, -3.2% - Load regulation: 0.3% max - Line regulation: 0.25% max - Ripple rejection: >60dB Aeroflex Plainview's Radiation Hardness Assurance Plan is DLA Certified to MIL-PRF-38534, Appendix G. Negative regulator features (RH1185) - Output voltage adjustable: -2.37 to -25V - Dropout voltage: 1.05V at 3Amps - 5-Terminal - Output current: 3A - Voltage reference: -2.370V 3% - Load regulation: 0.8% max - Line regulation: 0.02% max - Ripple rejection: >60dB DESCRIPTION The Aeroflex Plainview VRG8651/8652 consists of one Positive Adjustable (RH1086) and one Negative Adjustable (RH1185) LDO voltage regulator capable of supplying 1.0Amps (RH1086) /3Amps(RH1185) respectively over the output voltage range as defined under recommended operating conditions. The VRG8651/8652 offers excellent line and load regulation specifications and ripple rejection. There is full electrical isolation between the regulators and each regulator to the package. The VRG8651/8652 serves a wide variety of applications including SCSI-2 Active Terminator, High Efficiency Linear Regulators, Post Regulators for Switching Supplies, Constant Current Regulators, Battery Chargers and Microprocessor Supply. The VRG8651/8652 has been specifically designed to meet exposure to radiation environments. The VRG8651 is configured for a Thru-Hole 8 lead metal power package and the VRG8652 is configured for a Surface Mount 8 lead metal power package. It is guaranteed operational from -55C to +125C. Available screened to MIL-STD-883, the VRG8651/8652 is ideal for demanding military and space applications. Dropout (VIN - VOUT) decreases at lower load currents for both regulators. 1 3 ADJ RH1086 7 VOUT VOUT VIN 4 Reference 2 Feedback 6 RH1185 VIN GND Positive Regulator Negative Regulator 5 8 SCD8651 Rev J FIGURE 1 - BLOCK DIAGRAM / SCHEMATIC ABSOLUTE MAXIMUM RATINGS RANGE PARAMETER Input Voltage RH1086 RH1185 25+VREF -35 Lead temperature (soldering 10 Sec) UNITS VDC 300 Input Output Differential C 25 30 VDC - -7 VDC Output Voltage +25 -30 VDC DC Output Current 1.5 - A Feedback & Reference Voltage ESD 2000 1/ V Operating Junction Temperature Range -55 to +150 C Storage Temperature Range -65 to +150 C 1/ Meets ESD testing per MIL-STD-883, method 3015, Class 1C. NOTICE: Stresses above those listed under "Absolute Maximums Rating" may cause permanent damage to the device. These are stress rating only; functional operation beyond the "Operation Conditions" is not recommended and extended exposure beyond the "Operation Conditions" may effect device reliability. RECOMMENDED OPERATING CONDITIONS RANGE PARAMETER Output Voltage Range Input Output Differential UNITS RH1086 RH1185 1.275 to 23 -2.45 to -25 VDC 1.5 to 25 1 to 28 VDC Case Operating Temperature Range Thermal Resistance, Junction to case jc -55 to +125 C 5 C/W ELECTRICAL PERFORMANCE CHARACTERISTICS Unless otherwise specified, these specifications apply for post radiation and -55C < Tc < +125C. PARAMETER SYM CONDITIONS (P PMAX) MIN MAX UNITS 1.210 1.275 V RH1086 Positive LDO section only Reference Voltage 2/ 3/ VREF 1.5V < VIN - VOUT < 15V, ILOAD = 10mA Line Regulation 2/ 3/ VOUT ILOAD = 10mA, 1.5V < VIN - VOUT < 15V VIN - 0.25 % Load Regulation 2/ 3/ VOUT 10mA < IOUT < 1.0A, VIN - VOUT = 3V IOUT - 0.3 % Dropout Voltage 2/ 4/ VDROP VREF = 1%, IOUT = 1.0A - 1.30 V - 120 A - 5 A Adjust Pin Current 2/ - Adjust Pin Current Change 2/ - Current Limit 2/ 14/ Minimum Load Current 5/ Ripple Rejection 3/ 10 mA < IOUT < 1.0A, 1.5V < VIN - VOUT < 15V IMAX VIN - VOUT = 5V VIN - VOUT < 25V 1.5 0.047 - A A IMIN VIN - VOUT = 25V - 10 mA 60 - dB - IOUT = 1.0A, VIN - VOUT = 3V, f = 120Hz, CADJ = COUT = 25F Thermal Regulation 30ms pulse, TC = +25C - 0.04 %/W VREF Long-Term Stability 5/ Burn In: TC = +125C @ 1000hrs min, tested @ 25C - 0.3 % SCD8651 Rev J 4/26/12 2 Aeroflex Plainview ELECTRICAL PERFORMANCE CHARACTERISTICS Unless otherwise specified, these specifications apply for post radiation and -55C < Tc < +125C. PARAMETER CONDITIONS (P PMAX) SYM MIN MAX UNITS 1mA < IOUT < 3A, VIN - VOUT = 1.2V to 28V, VOUT = -5V -2.29 -2.45 V IOUT = 0.5A, VOUT = -5V - 0.425 V IOUT = 3A, VOUT = -5V - 1.05 V RH1185 Negative LDO section only 1/, 9/ Reference Voltage (At pin 6) 2/ 9/ VREF Dropout Voltage 2/ 6/ VDROP Line Regulation 2/ 10/ VOUT VIN 1.0V < VIN - VOUT < 20V, VOUT = -5V - 0.02 %/V Load Regulation 2/ 10/ VOUT IOUT 5mA < IOUT < 3A, VIN - VOUT = 1.5V to 10V, VOUT = -5V - 0.8 % - -4.50 V 1.5V < VIN - VOUT < 10V 3.3 4.55 A VIN - VOUT = 15V 2.0 4.5 A VIN - VOUT = 20V 1.0 3.1 A VIN - VOUT = 30V 5/ 0.2 1.6 A RLIM = 5K 12/ 2.7 3.7 A RLIM = 15K 12/ 0.9 1.6 A IOUT = 5mA, VOUT = VREF, -4V < VIN < -25V - 3.5 mA VIN - VOUT = VSAT - 35 mA/A - 21 mA/A 60 - dB - 0.014 %/W Minimum Input Voltage 2/ 7/ VIN MIN IOUT = 3A , VOUT = VREF Internal Current Limit (See Graph for Guaranteed Curve - See Figure 6) 2/ 14/ External Current Limit 2/ Quiescent Supply Current 2/ 8/ Supply Current Change with Load 2/ ICL ILIM IQ IQ 11/ VIN - VOUT 2V Ripple Rejection - IOUT = 1.0A, VIN - VOUT = 3V, f = 120Hz, Thermal Regulation (See application information LT1185) 5/ - VIN -VOUT = 10V, IOUT = 5mA to 2A, TC = +25C Notes 1. Meets ESD testing per MIL-STD-883, method 3015, Class 2. 2. Specification derated to reflect High Dose Rate (1019 condition A) to 100Krad (Si) @ +25C. 3. Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the input/output differential voltage and the output current. Guaranteed maximum power dissipation will not be available over the full input/output voltage range. 4. Dropout voltage is specified over the full output current range of the device. 5. Not tested. Shall be guaranteed by design, characterization, or correlation to other tested parameters. 6. Dropout voltage is tested by reducing input voltage until the output drops 1% below its nominal value. Tests are done at 0.5A and 3A. The power transistor looks basically like a pure resistance in this range so that minimum differential at any intermediate current can be calculated by interpolation; VDROPOUT = 0.25V + (0.25 x IOUT). For load current less than 0.5A, see Figure 4. 7. "Minimum input voltage" is limited by base emitter voltage drive of the power transistor section, not saturation as measured in Note 6. For output voltages below 4V, "minimum input voltage" specification may limit dropout voltage before transistor saturation limitation. 8. Supply current is measured on the ground pin, and does not include load current, RLIM, or output divider current. 9. The 25W power level is guaranteed for an input-output voltage of 8.3V to 17V. At lower voltages the 3A limit applies, and at higher voltages the internal power limiting may restrict regulator power below 25W. 10. Line and load regulation are measured on a pulse basis with a pulse width of 2ms, to minimize heating. DC regulation will be affected by thermal regulation and temperature coefficient of the reference. 11. VSAT is the maximum specified dropout voltage; 0.25V +(0.25 x IOUT). 12. Current limit is programmed with a resistor from REF pin to GND pin. RLIM = 15K/ILIM. 13. For compliance with MIL-STD- 883 revision C current density specification, the RH1086MK is derated to 1 Amp but is capable of 1.5 Amps. 14. Pulsed @ <10% duty cycle @ +25C. SCD8651 Rev J 4/26/12 3 Aeroflex Plainview 60 50 40 Maximum Power Dissipation (Watts) 30 Both Regulators 20 1 Regulator 10 0 0 20 40 60 80 100 120 140 Case Temperature (C) FIGURE 2 - MAXIMUM POWER vs CASE TEMPERATURE The maximum Power dissipation is limited by the thermal shutdown function of each regulator chip in the VRG8651/8652. The graph above represents the achievable power before the chip shuts down. The first line in the graph represents the maximum power dissipation of the VRG8651/8652 with one regulator on (the other off) and the other line represents both regulators on dissipating equal power. If both regulators are on and one regulator is dissipating more power that the other, the maximum power dissipation of the VRG8651/8652 will fall between the two lines. This graph is based on the maximum junction temperature of 150C and a thermal resistance (JC) of 5C/W. SCD8651 Rev J 4/26/12 4 Aeroflex Plainview See Note 13, pg 3. FIGURE 3 - RH1086 DROPOUT VOLTAGE TYPICAL CURVE FIGURE 4 - RH1185 DROPOUT VOLTAGE TYPICAL CURVE See Note 13, pg 3. FIGURE 6 - RH1185 INTERNAL CURRENT LIMIT FIGURE 5 - RH1086 SHORT CIRCUIT CURRENT SCD8651 Rev J 4/26/12 5 Aeroflex Plainview VIN 8 10F Tant. VRG8651/52 7 (RH1086) VREF 1 VREF = 1.25V, IADJ = 50A Vout 10F Tant. R1 ADJ +Reg = VOUT = VREF (1+R2/R1) + (IADJ x R2) R2 FIGURE 7 - BASIC RH1086 ADJUSTABLE REGULATOR APPLICATION + The RH1185 output voltage is set by two external resistors. The internal reference voltage is trimmed to 2.37V so that a standard 1% 2.37k resistor (R1) can be used to set divider current at 1mA. R2 is then selected from: (VOUT - 2.37) R1 R2 = VREF for R1 = 2.37k and VREF = 2.37V, this reduces to: + 5 - R2 = VOUT - 2.37 R2 when R1 = 2.37k 2.5V 3.3V 5V 12V 15V 130 930 2.67k 9.76k 12.7k ra RLIM + 2 4 R2 GND 1 FB VIN - rb + IGND C2 R1* 2.37k Load VOUT R2 VRG8651/52 (RH1185) VOUT suggested values of 1% resistors are shown below: VOUT C1 VIN + Parasitic Lead Resistance 3 - *R1 should be connected directly to ground lead, not to the load, so that ra = 0. This limits the output voltage error to (IGND)(rb). Errors created by ra are multiplied by (1 + R2/R1). Note that VOUT increases with increasing ground pin current. R2 should be connected directly to load for remote sensing. C1 = C2 2F Tantalum. SETTING OUTPUT VOLTAGE R1 & R2 LOCATION & PROPER CONNECTION OF POSITIVE SENSE LEAD FIGURE 8 - BASIC RH1185 ADJUSTABLE REGULATOR APPLICATION SCD8651 Rev J 4/26/12 6 Aeroflex Plainview TABLE I - PIN NUMBERS vs FUNCTION PIN FUNCTION 1 POS_ADJ_1 2 NEG_REF_2 3 NEG_VOUT_2 4 NEG_VIN_2 5 NEG_GND_2 6 NEG_FB_2 7 POS_VOUT_1 8 POS_VIN_1 .300 .090 8X .100 .108 o .010 M CBA .150 REF. o.145 THRU 2x .028 MAX. 7 8 6 2 MAX. 5 .720 .020 MEASURED LEAD TIP .415 .2075 -C- 2 1 3 4 ESD/PIN 1 IDENT .230 MIN .515 R.065 TYP. 4 PLCS .632 .755 .003 .122 -B- o .010 BCA .220 MAX. .005 -A- .040 Notes: 1. Dimension Tolerance: .005 inches 2. Package contains BeO substrate 3. Case electrically isolated .030 DIA. .002 o .010 M CBA FIGURE 9 - PACKAGE OUTLINE -- THRU-HOLE POWER PACKAGE SCD8651 Rev J 4/26/12 7 Aeroflex Plainview TABLE II - PIN NUMBERS vs FUNCTION PIN FUNCTION 1 POS_ADJ_1 2 NEG_REF_2 3 NEG_VOUT_2 4 NEG_VIN_2 5 NEG_GND_2 6 NEG_FB_2 7 POS_VOUT_1 8 POS_VIN_1 .300 .090 8X .100 .108 o .010 CBA o.145 THRU 2x .028 MAX. .150 REF. M 7 8 6 .060 .005 5 .415 .886 .020 .2075 -C- R.065 TYP. 4 PLCS 2 1 3 4 ESD/PIN 1 IDENT .515 .632 .755 .003 .122 -B- o .010 BCA .220 MAX. .005 -A- .020.005 .030 DIA. .002 o .010 M CBA .040 Notes: 1. Dimension Tolerance: .005 inches 2. Package contains BeO substrate 3. Case electrically isolated FIGURE 10 - PACKAGE OUTLINE -- SURFACE MOUNT POWER PACKAGE SCD8651 Rev J 4/26/12 8 Aeroflex Plainview ORDERING INFORMATION MODEL DLA SMD # SCREENING VRG8651-7 - Commercial Flow, +25C testing only VRG8651-S - Military Temperature, -55C to +125C Screened in accordance with the individual Test Methods of MIL-STD-883 for Space Applications VRG8651-201-1S 5962-0920101KUC VRG8651-201-2S 5962-0920101KUA VRG8651-901-1S 5962R0920101KUC VRG8651-901-2S 5962R0920101KUA In accordance with DLA Certified RHA Program Plan to RHA Level "R", 100krads(Si) VRG8652-7 - Commercial Flow, +25C testing only VRG8652-S - Military Temperature, -55C to +125C Screened in accordance with the individual Test Methods of MIL-STD-883 for Space Applications VRG8652-201-1S 5962-0920101KZC VRG8652-201-2S 5962-0920101KZA VRG8652-901-1S 5962R0920101KZC VRG8652-901-2S 5962R0920101KZA In accordance with DLA SMD In accordance with DLA SMD PACKAGE 8 Lead Thru-Hole Power Pkg 8 Lead Surface Mount Power Pkg In accordance with DLA Certified RHA Program Plan to RHA Level "R", 100krads(Si) For detailed performance characteristic curves, applications information and typical applications see the latest datasheets for their RH1086 & RH1185, which are available on-line at www.linear.com. EXPORT CONTROL: EXPORT WARNING: This product is controlled for export under the International Traffic in Arms Regulations (ITAR). A license from the U.S. Department of State is required prior to the export of this product from the United States. Aeroflex's military and space products are controlled for export under the International Traffic in Arms Regulations (ITAR) and may not be sold or proposed or offered for sale to certain countries. (See ITAR 126.1 for complete information.) PLAINVIEW, NEW YORK Toll Free: 800-THE-1553 Fax: 516-694-6715 INTERNATIONAL Tel: 805-778-9229 Fax: 805-778-1980 NORTHEAST Tel: 603-888-3975 Fax: 603-888-4585 SE AND MID-ATLANTIC Tel: 321-951-4164 Fax: 321-951-4254 WEST COAST Tel: 949-362-2260 Fax: 949-362-2266 CENTRAL Tel: 719-594-8017 Fax: 719-594-8468 www.aeroflex.com info-ams@aeroflex.com Aeroflex Microelectronic Solutions reserves the right to change at any time without notice the specifications, design, function, or form of its products described herein. All parameters must be validated for each customer's application by engineering. No liability is assumed as a result of use of this product. No patent licenses are implied. LT, LTC, Our passion for performance is defined by three attributes represented by these three icons: solution-minded, performance-driven and customer-focused , Linear Technology and the Linear logo are registered trademarks and RH1086 & RH1185 are copyright Linear Technology Corporation. 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