AHV2800

LAMBDA ADVANCED ANALOG INC. λ PRELIMINARY AHV2800 Series Hybrid - High Reliability DC/DC Converters DESCRIPTION The AHV series of DC/DC converters are designed to replace the AHE/ATO family of converters in applications requiring compliance to MIL-STD-704A through E, in particular the input surge requirement of 80 volts specified in MIL-STD-704A. The converters are designed to withstand transient input voltage of 80 volts. No input voltage or output power derating is necessary over the full military temperature range. These converters are packaged in an extremely rugged, low profile package that meets all requirements of MIL-STD-883 and MIL-PRF-38534. Parallel seam weld sealing and the use of ceramic pin feedthru seals assure long term hermeticity after exposure to extended temperature cycling. The basic circuit is a push-pull forward topology using power MOSFET switches. The nominal switching frequency is 500 KHz. A unique current injection circuit assures current balancing in the power switches. All AHV series converters use a single stage LC input filter to attenuate input ripple current. A low power 11.5 volt series regulator provides power to an epitaxial CMOS custom pulse width modulator integrated circuit. This single integrated circuit provides all PWM primary circuit functions. Power is transferred from primary to secondary through a ferrite core power transformer. An error voltage signal is generated by comparing a highly stable reference voltage with the converter output voltage and drives the PWM through a unique wideband magnetic feedback circuit. This proprietary feedback circuit provides an extremely wide bandwidth, high gain control loop, with high phase margin. The feedback control loop gain is insensitive to temperature, radiation, aging, and variations in manufacturing. The transfer function of the feedback circuit is a function of the feedback transformer turns ratio which cannot change when subjected to enviromental extremes. the requirements of MIL-PRF-38534 for class H. The HB grade is processed and screened to the class H requirement, but may not necessarily meet all of the other MIL-PRF-38534 requirements, e.g., element evaluation and Periodic Inspection (P.I.) not required. Both grades are tested to meet the complete group "A" test specification over the full military temperature range without output power deration. Two grades with more limited screening are also available for use in less demanding applications. Variations in electrical, mechanical and screening can be accommodated. Contact Lambda Advanced Analog for special requirements. FEATURES n n n n n n n n n n n n n 80 Transient (100 msec max.) Absolute Maximum Input 50 VDC Absolute Maximum Input (Continuous) 16-40 VDC Input Range Single, Dual, and Triple Outputs 15 Watt Output Power (No Temperature Derating) Low Input/Output Noise Full Military Temperature Range Wideband PWM Control Loop Magnetic Feedback Low Profile Hermetic Package (.405”) Short Circuit and Overload Protection Constant Switching Frequency (500 KHz) True Hermetic Package (Parallel Seam Welded, Ceramic Pin Feedthru Manufactured in a facility fully qualified to MIL-PRF38534, these converters are available in four screening grades to satisfy a wide range of requirements. The CH grade is fully compliant to SPECIFICATIONS (SINGLE OUTPUT MODELS) TCASE = -55°C to +125°C, VIN = +28 V ±5% unless otherwise specified ABSOLUTE MAXIMUM RATINGS Input Voltage Power Output Soldering Temperature Range -0.5 V to 50 VDC (Continuous) 80 V (100ms) Internally limited, 17.5W typical 300°C for 10 seconds (1 pin at a time) Operating -55°C to 135°C case9 Storage -65°C to +135°C Conditions -55°C - Tc - +125°C, VIN = 28 VDC TestSymbol ±5%, CL=0, unless otherwise specified Subgroups Group A Min 1 2,3 1,2,3 1,2,3 1,2,3 AHV2805S Max Min 4.95 4.90 0.0 15 5 25 50 18 50 50 72 100 500 8.5 8.5 450 550 5.05 5.10 3.00 60 AHV2812S Max Min 11.88 11.76 0.0 15 30 60 120 18 50 50 72 100 200 8.5 8.5 450 550 12.12 12.24 1.25 60 AHV2815S Max Units 14.85 14.70 0.0 15 35 75 150 18 50 50 72 100 200 8.5 8.5 450 550 15.15 V 15.30 V 1.00 A 60 mV p-p W mV mV mV mA mA mA p-p % MΩ µF W W KHz STATIC CHARACTERISTICS OUTPUT VOUT Voltage Current IOUT Ripple Voltage 1 VRIP Power REGULATION Line Load INPUT Current Ripple Current EFFICIENCY ISOLATION CAPACITIVE LOAD 2, 3 LOAD FAULT POWER DISSIPATION POUT VRLINE VIN = 16, 28, and 40 VDC IOUT = 0 VIN = 16, 28, and 40 VDC VIN = 16, 28, and 40 VDC BW = DC to 1 MHz VIN = 16, 28, and 40 VDC VIN = 16, 28, and 40 VDC 1 IOUT = 0, Half Load and Full Load 2,3 VRLOAD VIN = 16, 28, and 40 VDC 1,2,3 IOUT = 0, Half Load and Full Load IIN IRIP EFF ISO CL PD IOUT = 0, Inhibit (pin 2) = 0 IOUT = 0, Inhibit (pin 2) = Open IOUT = Full Load IOUT = Full Load TC = +25°C Input to output or any pin to case (except pin 8) at 500 VDC, Tc = +25°C No effect on DC performance Tc = +25°C Overload, Tc = +25°C 4 Short circuit, Tc = +25°C 1,2,3 1,2,3 1 1 4 1 4 SWITCHING FREQUENCY FS IOUT = Full Load DYNAMIC CHARACTERISTICS STEP LOAD CHANGES Output Transient 5 VOTLOAD 50% Load 135 100% Load No Load 135 50% Recovery 5,6 TTLOAD 50% Load 135 100% Load No Load 335 50% Load 50% Load 335 No Load STEP LINE CHANGES Output Transient VOTLINE Input step 16 to 40 VDC 3,7 Input step 40 to 16 VDC 3,7 Recovery TTLINE Input step 16 to 40 VDC 3,6,7 Input step 40 to 16 VDC 3,6,7 TURN-ON Overshoot VTON OS IOUT = OA and Full Load Delay TON D IOUT = O and Full Load 8 LOAD FAULT RECOVERY trLF VIN = 16 TO 40 VDC 4 4 4 4 4 4 4 4 4 4,5,6 4,5,6 4,5,6 -300 -500 +300 +500 70 200 5 300 -1000 800 800 550 10 10 -300 -750 +300 +750 70 1500 5 500 -1500 800 800 750 10 10 -300 -750 +300 +750 70 1500 5 500 -1500 800 800 750 10 10 mVpk mVpk µS µS ms mVpk mVpk µS µS mVpk ms ms Notes: 1. Bandwidth guaranteed by design. Tested for 20 KHz to 2 MHz. 2. Capacitive load may be any value from 0 to the maximum limit without affecting dc performance. A capacitive load in excess of the maximum limit will not disturb loop stability but will interfere with the operation of the load fault detection circuitry, appearing as a short circuit during turn-on. 3. Parameter shall be tested as part of design characterization and after design or process changes. Thereafter shall be guaranteed to the limits specified. 4. An overload is that condition with a load in excess of the rated load but less than that necessary to trigger the short circuit protection and is the condition of maximum power dissipation. 5. Load step transition time between 2 and 10 microseconds. 6. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1 percent of VOUT at 50 percent load. 7. Input step transition time between 2 and 10 microseconds. 8. Turn on delay time measurement is for either a step application of power at input or the removal of a ground signal from the inhibit pin (pin 2) while power is applied to the input. 9. Above 125°C case temperature, derate output power linearly to 0 at 135°C case. 2 SPECIFICATIONS (DUAL OUTPUT MODELS) TCASE = -55°C to +125 °C, VIN = +28 V ±5% unless otherwise specified ABSOLUTE MAXIMUM RATINGS Input Voltage Power Output Soldering Temperature Range -0.5 V to 50 VDC (Continuous) 80 V (100ms) Internally limited, 17.5W typical 300°C for 10 seconds (1 pin at a time) Operating -55°C to 135°C case 13 Storage -65°C to +135°C Conditions -55°C - Tc - +125°C, VIN = 28 VDC Test Symbol ±5%, CL=0, unless otherwise specified Group A Subgroups AHV2812D Min Max AHV2815D Min Max Units STATIC CHARACTERISTICS OUTPUT Voltage 1 VOUT Current 1,2 Ripple Voltage 1,3 Power 1,2,4 REGULATION Line 1,5 Load 1 INPUT Current Ripple Current 3 EFFICIENCY ISOLATION CAPACITIVE LOAD 6,7 LOAD FAULT POWER DISSIPATION IOUT VRIP POUT IOUT = 0 VIN = 16, 28, and 40 VDC VIN = 16, 28, and 40 VDC BW = DC TO 2 MHZ VIN = 16, 28, and 40 VDC 1 2,3 1,2,3 1,2,3 1,2,3 1 2,3 1,2,3 1,2,3 1,2,3 1 1 4 1 4 ±11.88 ±12.12 ±11.76 ±12.24 0.0 ±625 60 15 30 60 120 18 65 50 72 100 200 8.5 8.5 550 ±14.85 ±15.15 V ±14.70 ±15.30 V 0.0 ±500 mA 60 mV p-p 15 35 75 150 18 65 50 72 100 200 8.5 8.5 550 W mV mV mV mA mA mA p-p % MΩ µf W W KHz VRLINE VIN = 16, 28, and 40 VDC IOUT IOUT = 0, Half Load and Full Load VRLOAD VIN = 16, 28, and 40 VDC IOUT = 0, Half Load and Full Load IIN IRIP EFF ISO CL PD IOUT = 0, inhibit (pin 2) Tied to input return (pin 10) IOUT = 0, inhibit (pin 2) = open IOUT = Full Load BW = DC to 2MHz IOUT = FULL LOAD, TC = +25°C Input to output or any pin to case (except pin 8) at 500 VDC, TC = +25°C No effect on DC performance, TC = +25°C Over Load, TC = +25°C 8 Short Circuit, TC = +25°C IOUT = FULL LOAD SWITCHING FREQUENCY FS DYNAMIC CHARACTERISTICS STEP LOAD CHANGES Output Transient 9 VOTLOAD 50% Load 135 100% Load No Load 135 50% Load Recovery 9,10 TTLOAD 50% Load 135 100% Load No Load 335 50% Load 50% Load 335 No Load STEP LINE CHANGES Output Transient 7,11 VOTLINE Input step 16 to 40 VDC Input step 40 to 16 VDC Recovery 7,10,11 TTLINE Input step 16 to 40 VDC Input step 40 to 16 VDC TURN-ON Overshoot 1 VTON OS IOUT = O and Full Load Delay 1,12 TON D IOUT = O and Full Load LOAD FAULT RECOVERY 7 trLF 450 450 4 4 4 4 4 4 4 4 4 4,5,6 4,5,6 4,5,6 -300 -500 +300 +500 70 1500 5 1200 -1500 4 4 600 10 10 -300 -500 +300 +500 70 1500 5 1500 -1500 4 4 600 10 10 mVpk mVpk µs µs ms mVpk mVpk ms ms mVpk ms ms Notes: 1. Tested at each output 2. Parameter guaranteed by line and load regulation tests. 3. Bandwidth guaranteed by design. Tested for 20 KHz to 2 MHz. 4. Total power at both outputs. 5. When operating with unbalanced loads, at least 25% of the load must be on the positive output to maintain regulation. 6. Capacitive load may be any value from 0 to the maximum limit without affecting dc performance. A capacitive load in excess of the maximum limit will not disturb loop stability but may interfere with the operation of the load fault detection circuitry, appearing as a short circuit during turn-on. 7. Parameter shall be tested as part of design characterization and after design or process changes. Thereafter parameters shall be guaranteed to the limits specified. 8. An overload is that condition with a load in excess of the rated load but less than that necessary to trigger the short circuit protection and is the condition of maximum power dissipation. 9. Load step transition time between 2 and 10 microseconds. 10. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ± 1 percent of VOUT at 50 percent load. 11. Input step transition time between 2 and 10 microseconds. 12. Turn on delay time measurement is for either a step application of power at input or the removal of a ground signal from the inhibit pin (pin 2) while power is applied to the input. 13. Above 125°C case temperature, derate output power linearly to 0 at 135°C case. 3 SPECIFICATIONS (TRIPLE OUTPUT MODELS) TCASE = -55°C to +125°C, VIN = +28 V ±5% unless otherwise specified ABSOLUTE MAXIMUM RATINGS Input Voltage Power Output Soldering Temperature Range -0.5 V to 50 VDC (Continuous) 80 V (100ms) Internally limited, 17.5W typical 300°C for 10 seconds (1 pin at a time) Operating -55°C to 135°C case 8 Storage -65°C to +135°C Conditions -55°C - Tc - +125°C, VIN = 28 VDC Test Symbol ±5%, CL=0, unless otherwise specified Group A Subgroups AHV2812T Min Max AHV2815T Min Max Unit STATIC CHARACTERISTICS OUTPUT Voltage 1 VOUT IOUT = 0 (main) IOUT = 0 (dual) 1 Current 1,2,3 Ripple Voltage 1,4 IOUT VRIP Power 1,2,3 POUT VIN = 16, 28, and 40 VDC (main) VIN = 16, 28, and 40 VDC (dual)1 VIN = 16, 28, and 40 VDC BW = DC TO 2 MHZ (main) VIN = 16, 28, and 40 VDC BW = DC TO 2 MHZ (main) VIN = 16, 28, and 40 VDC (main) (+dual) (-dual) (total) 1 2,3 1 2,3 1,2,3 1,2,3 1,2,3 1,2,3 1,2,3 1,2,3 1,2,3 1,2,3 1,2,3 1 2,3 1,2,3 1,2,3 1,2,3 1,2,3 1,2,3 4.95 5.05 4.90 5.10 ±11.88 ±12.12 ±11.76 ±12.24 0.0 2000 0.0 ±208 80 40 10 2.5 2.5 15 25 ±30 ±60 50 ±60 4.95 5.05 V 4.90 5.10 V ±14.85 ±15.15 V ±14.70 ±15.30 V 0.0 2000 mA 0.0 ±167 mA 80 mV p-p 40 10 2.5 2.5 15 25 ±35 ±75 50 ±75 mV p-p W W W W mV mV mV mV mV REGULATION Line 1,3 Load 1,3 VIN = 16, 28, and 40 VDC IOUT = 0, 1000, 2000 mA (main) VIN = 16, 28, and 40 VDC IOUT = 0, ±104, ±208 mA (±12V) (dual) IOUT = 0, ±84, ±167 mA (±15v) VRLOAD VIN = 16, 28, and 40 VDC IOUT = 0, 1000, 2000 mA (main) VIN = 16, 28, and 40 VDC IOUT = 0, ±104, ±208 mA (±12V) (dual) IOUT = 0, ±84, ±167 mA (±15v) IIN IOUT = 0 inhibit (pin 8) tied to input return (pin 10) IOUT = 0 inhibit (pin 2) = open IOUT = 2000 mA (main) IOUT = ±208 mA (±12V) IOUT = ±167 mA (±15V) BW = DC to 2MHz IOUT = 2000 mA (main) IOUT = ±208 mA (± 12V) IOUT = ±167 mA (±15V) Input to output or any pin to case (except pin 7) at 500 Vdc, Tc = +25C Over Load, TC = +25C5 Short Circuit, TC = +25C IOUT = 2000 mA (main) IOUT = ±208 mA (±12V) IOUT = ±167 mA (±15V) No effect on DC performance, TC = +25C (main) (dual) VRLINE INPUT Current 15 50 50 15 50 50 mA mA mA p-p Ripple Current 4 IRIP EFFICIENCY ISOLATION LOAD FAULT POWER DISSIPATION 3 SWITCHING FREQUENCY1 CAPACITIVE LOAD 6,7 EFF ISO PD FS CL 1 1 1 1 4 72 100 8.5 8.5 550 72 100 8.5 8.5 550 % MΩ W W KHz 450 450 4 500 200 500 200 µf µf DYNAMIC CHARACTERISTICS STEP LOAD CHANGES Output Transient 9 VOTLOAD 50% Load 135 100% Load No Load 135 50% Load Recovery 9,10 TTLOAD 50% Load 135 100% Load No Load 335 50% Load 50% Load 335 No Load 4 4 4 4 4 -300 -400 +300 +400 100 2000 5 -300 -400 +300 +400 100 2000 5 mVpk mVpk µs µs ms 4 STEP LINE CHANGES Output Transient 7,11 Recovery 7,10,11 VOTLINE Input step 16 to 40 VDC Input step 40 to 16 VDC TTLINE Input step 16 to 40 VDC Input step 40 to 16 VDC 4 4 4 4 4 4 4 1200 -1500 4 4 750 15 15 1200 -1500 4 4 750 15 15 mVpk mVpk ms ms mVpk ms ms TURN-ON Overshoot 1 VTON OS IOUT = 0 and ±625 mA Delay 1,12 TON D IOUT = 0 and ±625 mA LOAD FAULT RECOVERY 7 trLF Notes: 1. Tested at each output 2. Parameter guaranteed by line and load regulation tests. 3. At least 25 percent of the total power should be taken from the (+5 volt) main output. 4. Bandwidth guaranteed by design. Tested for 20 KHz to 2 MHz. 5. An overload is that condition with a load in excess of the rated load but less than that necessary to trigger the short circuit protection and is the condition of maximum power dissipation. 6. Capacitive load may be any value from 0 to the maximum limit without affecting dc performance. A capacitive load in excess of the maximum limit will not disturb loop stability but may interfere with the operation of the load fault detection circuitry, appearing as a short circuit during turn-on. 7. Parameter shall be tested as part of design characterization and after design or process changes. Thereafter parameters shall be guaranteed to the limits specified. 8. Above 125°C case temperature, derate output power linearly to 0 at 135°C case. 9. Load step transition time between 2 and 10 microseconds. 10. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ± 1 percent of VOUT at 50 percent load. 11. Input step transition time between 2 and 10 microseconds. 12. Turn on delay time measurement is for either a step application of power at input or the removal of a ground signal from the inhibit pin (pin 8) while power is applied to the input. PART NUMBER AHV 28xx x Model STANDARD MILITARY DRAWING CROSS REFERENCE F / xx Screening (see table below) Omit for industrail ES— Environmental screening HB— Military screening CH— Fully compliant and SMD Package F - Flange Output Option S - Single Output D - Dual Output T - Triple Output Lambda Advanced Analog part no. AHV2805 SF/CH AHV2812 SF/CH AHV2815 SF/CH AHV2812 DF/CH AHV2815 DF/CH AHV2812 TF/CH AHV2815 TF/CH Standardized ** military dwg. 5962-91773 5962-92112 5962-92113 5962-92114 5962-92774 5962-92115 5962-92116 Input Voltage Output Voltage 05 - 5VDC 12 - 12VDC 15 - 15VDC ** Pending consult factory for status. SCREENING DETAILS Requirement Temperature Range Element Evaluation Internal Visual Temperature Cycle Constant Acceleration Burn-in Final Electrical (Group A) Seal, Fine & Gross External Visual v per Commercial Standards 2017 1010 2001 1015 MIL-STD-38534 & Specification 1014 2009 25°C Cond A v v  Cond B 500g 96 hrs @125°C 25°C Cond A, C   Cond C Cond A 160 hrs @125°C -55, +25, +125°C Cond A, C  MIL-STD-883 Method No Suffix -20°C to +85°C ES Suffix -55°C to +125°C HB Suffix CH Suffix -55°C to +125°C -55°C to +125°C MIL-PRF-38534  Cond C Cond A 160 hrs @125°C -55, +25, +125°C Cond A, C  5 BLOCK DIAGRAMS 1 INPUT FILTER OUTPUT FILTER 5 Single Output Models 2 CONTROLLER ERROR AMP & REF 3 10 4 1 INPUT FILTER OUTPUT FILTER 3 Double Output Models 2 CONTROLLER REGULATOR & OUTPUT FILTER ERROR AMP & REF 5 10 4 5 REGULATOR & OUTPUT FILTER 1 INPUT FILTER OUTPUT FILTER 8 CONTROLLER 4 Triple Output Models 2 ERROR AMP & REF 10 3 6 MECHANICAL OUTLINE 2.700 max (68.580) 2.880 max (73.152) Pin #1 1.345 (34.163) 1.00 (25.400) 1.110 (28.194) Pin #1 2.560 (65.024) 2.110 max (53.594) 0.800 (20.320) 2.360 (59.944) 1.950 (49.530) 0.162D 2 places (4.115) 0.410 max. 10.414 0.162D 2 places (4.115) .405 max 10.287 4 x 0.400 = 1.600 (10.160) (40.640) 4 x 0.400 = 1.600 (10.160) (40.640) 0.040D x 0.260L (1.016) (6.604) 0.040D x 0.260L (1.016) (6.604) Flange Single and Dual Output Models Triple Output Models PIN DESIGNATION Input Common N/C Case Ground 10 9 1 + Input Inhibit Input Single Output Models Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Positive Input Inhibit Input Output adjust* Output common Positive output Pin 10 Input common Pin 9 N/C Pin 8 Case gnd Pin 7 N/C Pin 6 N/C Bottom View Output Adjust Output Common 6 5 + Output Input Common N/C Case Ground 10 1 Pos. Input Inhibit Input Dual Output Models Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Positive Input Inhibit Input Positive output Output common Negative output Pin 10 Input common Pin 9 N/C Pin 8 Case gnd Pin 7 N/C Pin 6 N/C Bottom View Pos. Output Output Common 6 5 Neg. Output Input Common N/C Inhibit Input Case Ground N/C 10 1 Pos. Input +5VDC Output Triple Output Models Pin 1 Pin 2 Pin 3 Pin 4 Positive Input +5VDC output Output common Neg. Dual output (12/15VDC) Pin 5 Pos. Dual output (12/15VDC) 7 Bottom View Output Common Neg. Dual Output Pin 10 Input common Pin 9 N/C Pin 8 Inhibit Input Pin 7 Case gnd Pin 6 N/C 6 5 Pos. Dual Output APPLICATION INFORMATION Inhibit function Connecting the inhibit pin (Pin 2 of single and dual models, pin 8 of triple models) to the input return (Pin 10) will cause the converter to shut down and operate in a low power standby mode. Power consumption in this mode is calculated by multiplying Vin times the input current inhibited, typically 225mw at Vin equal to 28 volts. The input current inhibited is relatively constant with changes in Vin. The open circuit inhibit pin voltage is typically 11.5 volts and can be conveniently driven by an open collector driver. An internal pullup resistor enables the user to leave this pin floating if the inhibit function is not used in their particular application. All models use identical inhibit internal circuits. Forcing inhibit pin to any voltage between 0 and 6 volts will assure the converter is inhibited. The input current to this pin is 500µa maximum at Vpin2 = to 0 volts. The converter can be turned on by opening Pin 2 or forcing a voltage from 10 to 50 volts. Inhibit pin current from 10 to 50 volts is less than ±50µa. EMI Filter An optional EMI filter (AFC461) will reduce the input ripple current to levels below the limits imposed by MILSTD-461 CEO3 *Output Adjust (Single Output Models Only) The output voltage of the AHV28XXS can be adjusted upward by connecting Output Adjust (Pin 3) and Output Common (Pin 4) as shown in Table 1. Resistance, ohm Pin 3 to 4 x 390 K 145 K 63 K 22 K 0 Output Voltage Increase, % 5V 12V 15V 0 +1.0 % +2.0 % +3.1 % +4.1 % +5.0 % 0 +1.6% +3.2 % +4.9 % +6.5 % +7.9 % 0 +1.7 % +3.4 % +5.1 % +6.8 % +8.3 % Table 1: Output Adjustment Resistor Values ©Lambda Advanced Analog The information in this data sheet has been carefully checked and is believed to be accurate; however no responsibility is assumed for possible errors. These specifications are subject to change without notice. 9848 LAMBDA ADVANCED ANALOG INC. λ MIL-PRF-38534 Certified ISO9001 Registered 2270 Martin Avenue Santa Clara CA 95050-2781 (408) 988-4930 FAX (408) 988-2702 8