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International Rectifier AHV28xx - AHV28xx (International Rectifier) - ADVANCED ANALOG HYBRID-HIGH RELIABILITY DC/DC CONVERTERS
| Наименование: | AHV28xx |
|---|---|
| Производитель: | International Rectifier |
| Файл: | AHV28xx_International Rectifier.pdf |
| Скачать datasheet: |
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| Описание: | PD - 94583 AHV28XX SERIES 28V Input, Single, Dual and Triple Output ADVANCED ANALOG HYBRID-HIGH RELIABILITY DC/DC CONVERTERS 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 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 500KHz. 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 11.5volt 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 environmental extremes. Manufactured in a facility fully qualified to MIL-PRF38534, these converters are available in four screening grades to satisfy a wide range of requirements. AHV Features n n n n n n n n n n n n n 80 Transient Input (100 msec max.) 50 VDC Input (Continous) 16 to 40 VDC Input Range Single, Dual and Triple Outputs 15 Watts Output Power (No Temperature Derating) Low Input / Output Noise Full Military Temperature Range Wideband PWM Control Loop Magnetic Feedback Low Profile Hermetic Package (0.405”) Short Circuit and Overload Protection Constant Switching Frequency (500KHz) True Hermetic Package (Parallel Seam Welded, Ceramic Pin Feedthru) The CH grade is fully compliant to 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 Advanced Analog for special requirements. www.irf.com 1 11/20/02 AHV28XX Series Specifications (Single Output Models) TCASE = -55В°C to +125В°C, VIN = +28V В± 5% unless otherwise specified ABSOLUTE MAXIMUM RATINGS Input Voltage -0.5V to 50VDC (continuous) 80V (100ms) Power Output Internally limited, 17.5W typical Soldering 300В°C for 10 seconds (1 pin at a time) Temperature Range Operating -55В°C to +135В°C Storage -65В°C to +135В°C TEST STATIC CHARACTERISTICS OUTPUT Voltage Current Ripple Voltage1 Power REGULATION Line Load INPUT Current Ripple Current EFFICIENCY ISOLATION SYMBOL Condition -55В°C ≤ TC ≤ +125В°C, VIN = 28 VDC В±5%, CL=0, unless otherwise specified Group A Subgroups AHV2805S Min Max AHV2812S Min Max AHV2815S Min Max Units VOUT IOUT VRIP POUT VRLINE VRLOAD 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 IOUT = 0, half load and full load VIN = 16, 28, and 40 VDC IOUT = 0, half load and full load IOUT = 0, Inhibit (pin 2) = 0 IOUT = 0, Inhibit (pin 2) = Open IOUT = Full load IOUT = Full Load TC = +25В°C Input to output or any pin to case (except pin 8) at 500 VDC TC = +25В°C No effect on DC performance TC = +25В°C Overload, TC = +25В°C4 Short Circuit, TC = +25В°C IOUT = Full Load 1 2,3 1,2,3 1,2,3 1,2,3 1 2,3 1,2,3 4.95 4.90 0.0 5.05 5.10 3.00 60 11.88 11.76 0.0 12.12 12.24 1.25 60 14.85 14.70 0.0 15.15 15.30 1.00 60 V V A mVp-p W 15 5 25 50 15 30 60 120 15 35 75 150 mV mV mV IIN IRIP EFF ISO 1,2,3 1,2,3, 1 1 18 50 50 72 100 72 100 18 50 50 72 100 18 50 50 mA mA mAp-p % MΩ Capacitive Load 2,3 Load Fault Power Dissipation Switching Frequency CL PD 4 500 200 200 ВµF W W KHz 1 8.5 8.5 450 550 450 8,5 8.5 550 450 8.5 8.5 550 FS DYNAMIC CHARACTERISTICS Step Load Changes Output Transient5 Recovery 5,6 4 VOTLOAD TTLOAD 50% Load 135 100% Load No Load 135 50% 50% Load 135 100% No Load 335 50% Load 50% Load 335 No lLoad Input step 16 to 40 VDC 3,7 Input step 40 to 16 VDC 3,7 Input step 16 to 40 VDC 3,6,7 Input step 40 to 16 VDC 3,6,7 IOUT = OA and Full Load IOUT = O and Full Load 8 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 Вµs Вµs ms mVpk mVpk Вµs Вµs mVpk ms ms Step Line Changes Output Transient Recovery TURN-ON Overshoot Delay Load Fault Recovery VOTLINE TTLINE VTonos T on D TRLF Notes to Specifications (Single Output Models) 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 necessary to trigger the short circuit protection and is the condition of maximum power dissipation. 5. Load step transition time between 2 to 10 microseconds. 6. Recovery time is measured from the initiation of the transient to where VOUT has returned to within В±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 inhinbit pin (pin 2) while power is applied to the input. Above 125В°C case temperature, derate output power linearly to 0 at 135В°C case. 2 www.irf.com AHV28XX Series Specifications (Dual Output Models) TCASE = -55В°C to +125В°C, VIN = +28V В± 5% unless otherwise specified ABSOLUTE MAXIMUM RATINGS Input Voltage -0.5V to 50VDC (continuous) 80V (100ms) Power Output Internally limited, 17.5W typical Soldering 300В°C for 10 seconds (1 pin at a time) Temperature Range Operating -55В°C to +135В°C Storage -65В°C to +135В°C Condition -55В°C ≤ TC ≤ +125В°C, VIN = 28 VDC В±5%, CL=0, unless otherwise specified TEST STATIC CHARACTERISTICS OUTPUT 1 Voltage Current 1,3 Ripple Voltage Power REGULATION 1,5 Line Load 1 1,2,4 1,2 SYMBOL Group A Subgroups AHV2812D Min Max AHV2815D Min Max Units VOUT IOUT VRIP POUT VRLINE IOUT VRLOAD IIN 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 VIN = 16, 28, and 40 VDC IOUT = 0, half load and full load VIN = 16, 28, and 40 VDC IOUT = 0, half load and full load 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 = +25В°C Input to output or any pin to case (except pin 8) at 500 VDC, TC = +25В°C No effect on DC performance TC = +25В°C Overload, TC = +25В°C Short Circuit, TC = +25В°C IOUT = Full Load 8 1 2,3 1,2,3 1,2,3 1,2,3 1 2,3 1,2,3 В±11.88 В±11.76 0.0 В±12.12 В±12.24 В±625 60 В±14.85 В±14.70 0.0 В±15.15 В±15.30 В±500 60 V V mA mVp-p W 15 30 60 120 15 35 75 150 mV mV mV INPUT Current 3 1,2,3 18 65 50 72 100 72 100 18 65 50 mA mA mAp-p % MΩ ВµF Ripple Current EFFICIENCY ISOLATION IRIP EFF ISO 1,2,3, 1 1 Capacitive Load 6,7 CL 4 200 200 Load Fault Power Dissipation Switching Frequency PD 1 8,5 8.5 450 550 450 8.5 8.5 550 W W KHz FS DYNAMIC CHARACTERISTICS Step Load Changes 9 Output Transient Recovery 9,10 4 VOTLOAD TTLOAD 50% Load 135 100% Load No Load 135 50% 50% Load 135 100% No Load 335 50% Load 50% Load 335 No lLoad Input step 16 to 40 VDC Input step 40 to 16 VDC Input step 16 to 40 VDC Input step 40 to 16 VDC IOUT = O and Full Load IOUT = O and Full Load 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 ВµS ВµS ms mVpk mVpk Вµs Вµs mVpk ms ms Step Line Changes 7,11 Output Transient Recovery 7,10, 11 VOTLINE TTLINE TURN-ON 1 Overshoot 1,12 Delay Load Fault Recovery 7 VTonOS T on D TRLF For Notes to Specifications, refer to page 5 www.irf.com 3 AHV28XX Series Specifications (Triple Output Models) TCASE = -55В°C to +125В°C, VIN = +28V В± 5% unless otherwise specified ABSOLUTE MAXIMUM RATINGS Input Voltage -0.5V to 50VDC (continuous) 80V (100ms) Power Output Internally limited, 17.5W typical Soldering 300В°C for 10 seconds (1 pin at a time) Temperature Range Operating -55В°C to +135В°C Storage |
