AHE2812D

PD-94555B AHE28XXD SERIES 28V Input, Dual Output HYBRID-HIGH RELIABILITY DC/DC CONVERTER Description The AHE Series of DC/DC converters feature high power density and an extended temperature range for use in military and industrial applications. Designed to MIL-STD-704D input requirements, these devices have nominal 28VDC inputs with ±5V, ±12V and ±15V dual outputs to satisfy a wide range of requirements. The circuit design incorporates a pulse width modulated push-pull topology operating in the feed-forward mode at a nominal switching frequency of 250KHz. Input to output isolation is achieved through the use of transformers in the forward and feedback circuits. The advanced feedback design provides fast loop response for superior line and load transient characteristics and offers greater reliability and radiation tolerance than devices incorporating optical feedback circuits. Manufactured in a facility fully qualified to MIL-PRF38534, these converters are fabricated utilizing DSCC qualified processes. For available screening options, refer to device screening table in the data sheet. Variations in electrical, mechanical and screening can be accommodated. Contact IR Santa Clara for special requirements. AHE Features n n n n n n n n n n n n n n n 17V to 40VDC Input Range 28VDC Nominal Input ± 5V, ±12V and ±15V Outputs Available Indefinite Short Circuit and Overload Protection 3 12.9W/in Power Density 15W Output Power Fast Loop Response for Superior Transient Characteristics Operating Temperature Range from -55°C to +125°C Available Popular Industry Standard Pin-Out Resistance Seam Welded Case for Superior Long Term Hermeticity Efficiencies up to 82% Shutdown from External Signal Military Screening 314,000 hour MTBF at 85°C (AUC) Standard Microcircuit Drawings Available www.irf.com 1 01/08/07 AHE28XXD Series Specifications Absolute Maximum Ratings Input voltage Soldering temperature Operating case temperature Storage case temperature -0.5V to +50VDC 300°C for 10 seconds -55°C to +125°C -65°C to +135°C AHE2805D Table I. Electrical Performance Characteristics Test Symbol Conditions -55°C ≤ Tc ≤+125°C Vin = 28 Vdc ±5%, CL = 0 Unless otherwise specified IOUT = 0 VIN = 17, 28, and 40 V dc VIN = 17, 28, and 40 V dc, B.W. = DC to 2MHz VIN =17,28, and 40 V dc VIN = 17, 28, and 40 V dc, Iout = 0, ±313, and ±625mA VIN = 17, 28, and 40 V dc, IOUT = 0, ±313,and ±625 mA IOUT = 0, inhibit (pin 2) tied to input return (pin 10) IOUT = 0, inhibit (pin 2) = open IOUT = ±625mA B.W. = DC to 2MHz IOUT = ±625mA TC = +25°C Input to output or any pin to case (except pin 8) at 500V dc Tc = +25ºC No effect on dc performance, Tc = +25ºC 3 Overload, TC = +25°C Short circuit, TC = +25°C IOUT = ±625mA 50% load to/from100%load Group A Subgroups Device Types Limits Unit Output voltage Output current 9, 11 8, 9 VOUT IOUT VRIP POUT VRLINE VRLOAD IIN 1 2,3 1,2,3 1,2,3 1,2,3 1 2,3 1,2,3 1,2,3 All All All All All All All Min ±4.95 ±4.90 0.0 Max ±5.05 ±5.10 ±625 60 V mA mVp-p W mV mV mA Output ripple voltage Output power 9 Line 10 Regulation Load 9 Regulation Input current 4, 9, 11 15 25 50 110 18 40 Input ripple current Efficiency Isolation Capacitive load 8 IRIP EFF ISO 1,2,3 1 1 4 1 1 4,5,6 All All All All All 80 100 50 mAp-p % MΩ 6, 12 CL PD 9 200 6.0 6.0 275 245 275 +300 +450 +500 +750 µF W Power dissipation load fault Switching frequency FS Output response to step 7 transient load changes VOTLOAD 4 5,6 4 5,6 01 02 03 All 225 225 250 -300 -450 -500 -750 KHz mVpk No load to/from 50% load All For Notes to Specifications, refer to page 3 2 www.irf.com AHE28XXD Series Table I. Electrical Performance Characteristics - continued Test Symbol Conditions -55° ≤Tc ≤+125°C Vin = 28 Vdc ±5%, CL= 0 unless otherwise specified 50% load to/from 100% load Group A Subgroups Device Types Limits AHE2805D Unit Min Recovery time step transient load 1, 7 changes TTLOAD 4 All Max 70 µs Output response transient step line 5, 12 changes Recovery time transient step 1, 5, 12 line changes Turn on overshoot 2, 9 Turn on delay 9 VOTLINE No load to 50% load 50% load to no load Input step 17 to 40V dc Input step 40 to 17V dc Input step 17 to 40V dc Input step 40 to 17V dc IOUT = 0 and ±625mA IOUT = 0 and ±625mA 5,6 4,5,6 4,5,6 4,5,6 4,5,6 4,5,6 4,5,6 4,5,6 4,5,6 4,5,6 All All All All All All All All All 100 1500 5.0 1200 -1500 4.0 4.0 600 10 10 ms mVpk TTLINE ms VTonOS TonD TrLF mVpk ms ms Load fault recovery 12 Notes to Specifications 1 Recovery time is measured from the initiation of the transient to where V OUT has returned to within ±0.1 % of V OUT at 50 % load. 2 Turn on delay time measurement is for either a step application of power at the input or the removal of a ground signal from the inhibit pin (pin 2) while power is applied to the input. 3 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. 4 Total power at both outputs. For operation at 16V dc input, derate output power by 33 %. 5 Input step transition time between 2.0 µs and 10µ s. 6 Capacitive load may be any value from 0 to the maximum limit without compromising 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 Load step transition time between 2.0µs and 10 µs. 8 Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz. 9 Tested at each output. 10 When operating with unbalanced loads, at least 25 % of the load must be on the positive output to maintain regulation. 11 Parameter guaranteed by line and load regulation tests. 12 Parameter shall be tested as part of design characterization and after design or process changes. Thereafter parameters shall be guaranteed to the limits specified in Table I. www.irf.com 3 AHE28XXD Series Specifications Absolute Maximum Ratings Input voltage Soldering temperature Operating case temperature Storage case temperature -0.5V to +50VDC 300°C for 10 seconds -55°C to +125°C -65°C to +135°C AHE2812D Table II. Electrical Performance Characteristics Test Symbol Conditions -55°C ≤ Tc ≤+125°C Vin = 28 Vdc ±5%, CL = 0 Unless otherwise specified IOUT = 0 VIN = 17, 28, and 40 V dc VIN = 17, 28, and 40 V dc, B.W. = DC to 2MHz VIN =17,28, and 40 V dc VIN = 17, 28, and 40 V dc, Iout = 0, ±313, and ±625mA VIN = 17, 28, and 40 V dc, IOUT = 0, ±313,and ±625 mA IOUT = 0, inhibit (pin 2) tied to input return (pin 10) IOUT = 0, inhibit (pin 2) = open IOUT = ±625mA B.W. = DC to 2MHz IOUT = ±625mA TC = +25°C Input to output or any pin to case (except pin 8) at 500V dc Tc = +25ºC No effect on dc performance, Tc = +25ºC 3 Overload, TC = +25°C Short circuit, TC = +25°C IOUT = ±625mA Group A Subgroups Device Types Limits Unit Output voltage Output current 9, 11 8, 9 VOUT IOUT VRIP POUT VRLINE VRLOAD IIN 1 2,3 1,2,3 1,2,3 1,2,3 1 2,3 1,2,3 1,2,3 All All All All All All All Min ±11.88 ±11.70 0.0 Max ±12.12 ±12.24 ±625 60 V mA mVp-p W mV mV mA Output ripple voltage Output power 9 Line 10 Regulation Load 9 Regulation Input current 4, 9, 11 15 30 60 120 18 40 Input ripple current Efficiency Isolation Capacitive load 8 IRIP EFF ISO 1,2,3 1 1 4 1 1 4,5,6 All All All All All 01 02 03 All 225 225 250 -300 -450 -500 -750 80 100 50 mAp-p % MΩ 6, 12 CL PD 9 200 6.0 6.0 275 245 275 +300 +450 +500 +750 µF W KHz Power dissipation load fault Switching frequency FS Output response to step 7 transient load changes VOTLOAD 50% load to/from100%load 4 5,6 4 5,6 mVpk No load to/from 50% load All 4 www.irf.com AHE28XXD Series Table II. Electrical Performance Characteristics - continued Test Symbol Conditions -55° ≤Tc ≤+125°C Vin = 28 Vdc ±5%, CL= 0 unless otherwise specified 50% load to/from 100% load Group A Subgroups Device Types Limits AHE2812D Unit Min Recovery time step transient load 1, 7 changes TTLOAD 4 All Max 70 µs Output response transient step line 5, 12 changes Recovery time transient step 1, 5, 12 line changes Turn on overshoot 2, 9 Turn on delay 9 VOTLINE No load to 50% load 50% load to no load Input step 17 to 40V dc Input step 40 to 17V dc Input step 17 to 40V dc Input step 40 to 17V dc IOUT = 0 and ±625mA IOUT = 0 and ±625mA 5,6 4,5,6 4,5,6 4,5,6 4,5,6 4,5,6 4,5,6 4,5,6 4,5,6 4,5,6 All All All All All All All All All 100 1500 5.0 1200 -1500 4.0 4.0 600 10 10 ms mVpk TTLINE ms VTonOS TonD TrLF mVpk ms ms Load fault recovery 12 Notes to Specifications 1 Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±0.1% of V OUT at 50 % load. 2 Turn on delay time measurement is for either a step application of power at the input or the removal of a ground signal from the inhibit pin (pin 2) while power is applied to the input. 3 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. 4 Total power at both outputs. For operation at 16V dc input, derate output power by 33 %. 5 Input step transition time between 2.0 µs and 10µ s. 6 Capacitive load may be any value from 0 to the maximum limit without compromising 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 Load step transition time between 2.0 µs and 10 µ s. 8 Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz. 9 Tested at each output. 10 When operating with unbalanced loads, at least 25 % of the load must be on the positive output to maintain regulation. 11 Parameter guaranteed by line and load regulation tests. 12 Parameter shall be tested as part of design characterization and after design or process changes. Thereafter parameters shall be guaranteed to the limits specified in Table II. www.irf.com 5 AHE28XXD Series Specifications Absolute Maximum Ratings Input voltage Soldering temperature Operating case temperature Storage case temperature -0.5V to +50VDC 300°C for 10 seconds -55°C to +125°C -65°C to +135°C AHE2815D Table III. Electrical Performance Characteristics Test Symbol Conditions -55°C ≤ Tc ≤+125°C Vin = 28 Vdc ±5%, CL = 0 Unless otherwise specified IOUT = 0 VIN = 17, 28, and 40 V dc VIN = 17, 28, and 40 V dc, B.W. = dc to 2 mHz VIN =17,28, and 40 V dc VIN = 17, 28, and 40 V dc, Iout = 0, ±250, and ±500mA VIN = 17, 28, and 40 V dc, IOUT = 0, ±250,and ±625 mA IOUT = 0, inhibit (pin 2) tied to input return (pin 10) IOUT = 0, inhibit (pin 2) = open IOUT = ±500mA B.W. = DC to 2MHz IOUT = ±500mA TC = +25°C Input to output or any pin to case (except pin 8) at 500V dc Tc = +25°C No effect on dc performance, Tc = +25°C 3 Overload, TC = +25°C IOUT = ±500mA Group A Subgroups Device Types Limits Unit Output voltage Output current 9, 11 VOUT IOUT VRIP POUT VRLINE VRLOAD IIN 1 2,3 1,2,3 1,2,3 1,2,3 1 2,3 1,2,3 1,2,3 All All All All All All All Min ±14.85 ±14.70 0.0 Max ±15.15 ±15.30 ±500 60 V mA mVp-p W mV mV mA Output ripple voltage 8, 9 Output power Line 9, 10 Regulation Load 9 Regulation Input current 4, 9, 11 15 35 75 150 18 40 Input ripple current Efficiency Isolation Capacitive load 8 IRIP EFF ISO 1,2,3 1 1 4 1 4,5,6 All All All All All 01 02 03 All 225 225 250 -300 -450 -500 -750 80 100 50 mAp-p % MΩ 6, 12 CL PD FS 200 6.0 275 245 275 +300 +450 +500 +750 µF W KHz Power dissipation load fault 9 Switching frequency Output response to step transient load 7 changes VOTLOAD 50% load to/from100%load 4 5,6 4 5,6 mVpk No load to/from 50% load All Refer Notes to Specifications, refer to page 5 6 www.irf.com AHE28XXD Series Table III. Electrical Performance Characteristics - continued Test Symbol Conditions -55°C ≤Tc ≤+125°C Vin = 28 Vdc ±5%, CL = 0 unless otherwise specified 50% load to/from 100% load Group A Subgroups Device Types Min Recovery time step transient 1, 7 load changes TTLOAD 4 5,6 4,5,6 4,5,6 4,5,6 All Limits AHE2815D Unit Max 70 100 1500 5.0 1500 µs Output response transient step 5, 12 line changes Recovery time transient step line 1, 5, 12 changes Turn on 9 overshoot 2, 9 Turn on delay Load fault 12 recovery VOTLINE No load to 50% load 50% load to no load Input step 17 to 40V dc All All All ms mV pk TTLINE Input step 40 to 17V dc Input step 17 to 40V dc 4,5,6 4,5,6 All All -1500 4.0 ms VTonOS TonD TrLF Input step 40 to 17V dc IOUT = 0 and ±500mA IOUT = 0 and ±500mA 4,5,6 4,5,6 4,5,6 4,5,6 All All All All 4.0 600 10 10 mV pk ms ms Notes to Specifications 1 Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±0.1 % of VOUT at 50 % load. 2 Turn on delay time measurement is for either a step application of power at the input or the removal of a ground signal from the inhibit pin (pin 2) while power is applied to the input. 3 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. 4 Total power at both outputs. For operation at 16Vdc input, derate output power by 33 %. 5 Input step transition time between 2.0µs and 10 µs. 6 Capacitive load may be any value from 0 to the maximum limit without compromising 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 Load step transition time between 2.0µ s and 10µ s. 8 Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz. 9 Tested at each output. 10 When operating with unbalanced loads, at least 25 % of the load must be on the positive output to maintain regulation. 11 Parameter guaranteed by line and load regulation tests. 12 Parameter shall be tested as part of design characterization and after design or process changes. Thereafter parameters shall be guaranteed to the limits specified in Table III. www.irf.com 7 AHE28XXD Series Block Diagram 3 +Vout +Input 1 Inhibit Input 2 Sync 9 Input Return 10 Drive 1 EMI Filter Regulator 4 Output Return 5 -Vout Pulse Width Modulator FB Drive 2 Error Amp & Reference Application Information Inhibit Function Connecting the inhibit input (Pin 2) to input common (Pin 10) will cause the converter to shut down. It is recommended that the inhibit pin be driven by an open collector device capable of sinking at least 400µA of current. The open circuit voltage of the inhibit input is 11.5 ± 1.0VDC. International Rectifier offers an option that provides synchronization of multiple AHE/ATW converters, thus eliminating this type of noise. To take advantage of this capability, the system designer must assign one of the converters as the master. Then, by definition, the remaining converters become slaves and will operate at the masters’ switching frequency. The user should be aware that the synchronization system is fail-safe; that is, the slaves will continue operating should the master frequency be interrupted for any reason. The layout must be such that the synchronization output (pin 9) of the master device is connected to the synchronization input (pin 9) of each slave device. It is advisable to keep this run short to minimize the possibility of radiating the 250KHz switching frequency. The appropriate parts must be ordered to utilize this feature. After selecting the converters required for the system, a ‘MSTR’ suffix is added for the master converter part number and a ‘SLV’ suffix is added for slave part number. EMI Filter An optional EMI filter (AFC461) will reduce the input ripple current to levels below the limits imposed by MIL-STD-461 CEO3. Device Synchronization Whenever multiple DC/DC converters are utilized in a single system, significant low frequency noise may be generated due to slight difference in the switching frequencies of the converters (beat frequency noise). Because of the low frequency nature of this noise (typically less than 10KHz), it is difficult to filter out and may interfere with proper operation of sensitive systems (communications, radar or telemetry). Typical Synchronization Connection + In Return AFC461 or AFV461 Output + In Case Output AHE28xxS Return MSTR Return Return System Bus + In AHE28xxS Output or Other Return Compatable Return Case SLV + In Case Return SLV Output AHE28xxS Return 8 www.irf.com AHE28XXD Series Mechanical Outlines Flanged Ø 0.162 2 Holes 0.050 0.800 Non-Flanged 0.040 D X 0.26 L Pins 10 1 2 2.880 Max 2.560 2.110 Max 4 X 0.400 =1.600 9 2.110 3 7 8 4 5 6 0.495 1.110 0.495 Max Pin Designation Pin # 1 2 3 4 5 6 7 8 9 10 Designation + Input Inhibit Input + Output Output Return - Output NC NC Case Ground NC or Sync. Input Return Standard Microcircuit Drawing Equivalence Table Standard Microcircuit Drawing Number 5962-92040 5962-91575 Vendor Cage Code 52467 52467 IR Standard Part Number AHE2812D AHE2815D www.irf.com 9 AHE28XXD Series Device Screening Requirement Temperature Range Element Evaluation Non-Destructive Bond Pull Internal Visual Temperature Cycle Constant Acceleration PIND Burn-In Final Electrical ( Group A ) PDA Seal, Fine and Gross Radiographic External Visual MIL-PRF-38534 2023 2017 1010 2001, Y1 Axis 2020 1015 MIL-PRF-38534 & Specification MIL-PRF-38534 1014 2012 2009 N/A Cond A N/A N/A Cond A, C N/A Yes MIL-STD-883 Method No Suffix N/A N/A ES d HB CH -55°C to +125°C Class H N/A Yes Cond C 3000 Gs N/A -55°C, +25°C, +125°C 10% Cond A, C N/A Yes -20°C to +85°C -55°C to +125°C N/A N/A Yes Cond B 500 Gs N/A e -55°C to +125°C N/A N/A Yes Cond C 3000 Gs N/A -55°C, +25°C, +125°C N/A Cond A, C N/A Yes c N/A N/A N/A N/A 25°C 48 hrs@hi temp 25°C d 160 hrs@125°C 160 hrs@125°C c Notes:  Best commercial practice ‚ Sample tests at low and high temperatures ƒ -55°C to +105°C for AHE, ATO, ATW Part Numbering AHE 28 15 D F /CH - MSTR Model Input Voltage Nominal 28 = 28V Sync Option M STR = Master SLV = Slave Omit for Standard Screening Level Package Option (Please refer to Screening Table) No Suffix, ES, HB, CH F = Flange Blank = Non-Flanged Output Voltage 05 = ±5V 12 = ±12V 15 = ±15V Output D = Dual WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 252-7105 IR SANTA CLARA: 2270 Martin Av., Santa Clara, California 95050, Tel: (408) 727-0500 Visit us at www.irf.com for sales contact information. Data and specifications subject to change without notice. 01/2007 10 www.irf.com