ATO2800T Series Hybrid - High Reliability Triple Output DC/DC Converters DESCRIPTION FEATURES The ATO2800T Series of DC/DC converters feature high power density and an extended temperature range for use in military and industrial applications. Designed to the nominal input requirements of MIL-STD-704D, these devices have nominal 28VDC inputs with +5V and ± 12V or +5V and ± 15V triple 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. Three standard temperature grades are offered. Refer to Part Number section. They are provided in a standard plug-in package for PC mounting or in a flanged package for more severe environments. These converters are manufactured in a facility fully qualified to Mil-Std-1772. All processes used to manufacture these converters have been qualified to enable Advanced Analog to deliver compliant devices. Two screening grades are available to satisfy a wide range of requirements. The CH grade converters are fully compliant to Mil-Std-1772 class H. The HB grade converters are processed to full class H screening but do not have class H element evaluation as required by Mil-Std-1772. Both grades are fully tested and operate over the full military temperature range without derating of output power. Variations in electrical, mechanical and screening can be accommodated. Extensive computer simulation using complex modeling enables rapid design modification to be provided. Contact Advanced Analog with specific requirements. ■ ■ ■ ■ ■ ■ 16 to 40 VDC input range (28VDC nominal) 5V, ±12V or 5V, ±15V outputs available Indefinite short circuit and overload protection 15 watts 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 81% Shutdown from external signal 200,000 hour MTBF at 85°C SPECIFICATIONS TCASE = -55°C to +85°C, VIN = +28 V ±5% unless otherwise specified ABSOLUTE MAXIMUM RATINGS Input Voltage Power Output Soldering Temperature Range6 -0.5 V to +50 V Internally limited, 17.5W typical 300°C for 10 seconds Operating -55°C to 115°C case Storage -65°C to +135°C Conditions -55°C - Tc - +85°C, VIN = 28 VDC Test Symbol STATIC CHARACTERISTICS OUTPUT Voltage1 VOUT ±5%, CL=0, unless otherwise specified IOUT = 0 (main) TC = 25°C Over Temp TC = 25°C Over Temp 1 IOUT = 0 (dual) Current1,2,3 Ripple Voltage Power IOUT 1,4 1,2,3 REGULATION Line1,3 Load 1,3 INPUT Current Ripple Current4 VRIP POUT VRLINE VRLOAD IIN IRIP EFFICIENCY EFF ISOLATION ISO LOAD FAULT POWER DISSIPATION 3 PD SWITCHING FREQUENCY FS INHIBIT OPEN CIRCUIT VOLTAGE VOI VIN = 16, 28, and 40 VDC (main) VIN = 16, 28, and 40 VDC (dual)1 VIN = 16, 28, and 40 VDC (dual) BW = DC to 2 MHz (main) VIN = 16, 28, and 40 VDC BW = DC to 2 MHz (dual) VIN = 16, 28, and 40 VDC (main) (+dual) (-dual) (total) VIN = 16, 28, and 40 VDC IOUT = 0, 1000, 2000 mA (main) VIN = 16, 28, and 40 VDC (dual) IOUT = 0, ±84, ±167 mA (dual) VIN = 16, 28, and 40 VDC IOUT = 0, 1000, 2000 mA (main) VIN = 16, 28, and 40 VDC IOUT = 0, ±84, ±167 mA (dual) IOUT = 0, inhibit (pin 8) tied to input return (pin 10) IOUT = 0, inhibit (pin 2) = open IOUT = 2000 mA (main) IOUT = ±167 mA (dual) BW = DC to 2 MHz IOUT = 2000 mA (main) IOUT = ±167 mA (dual) TC = ±25°C Input to output or any pin to case (except pin 7) at 500 VDC, Tc = +25°C Over Load, TC = +25°C5 Short Circuit, TC = +25°C IOUT = 2000 mA (main) IOUT = ±167 mA (dual) ATO2812T Limits Min Max ATO2815T Limits Min Max 4.95 5.05 4.90 5.10 ±11.88 ±12.12 ±11.76 ±12.24 0.0 2000 0.0 ±208 80 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 TC = 25°C Over Temp 40 10 2.5 2.5 15 Units mV p-p W W W W 25 25 mV ±30 ±60 50 ±35 ±75 50 mV mV mV ±60 ±75 mV 15 15 mA 40 50 40 50 mA mA p-p TC = +25°C 76 76 % TC = +25°C 100 100 MΩ TC = +25°C 225 8 6 275 9 13 225 8 6 275 W W kHz 9 13 V Notes: 1. Tested at each output. 2. Parameter guaranteed by line and load regulation tests. 3. At least 20 percent of the total output 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. Above 85°C case temperature, derate output power linearly to 0 at 135°C case. 2 SPECIFICATIONS TCASE = -55°C to +105°C, VIN = +28 V ±5% unless otherwise specified ABSOLUTE MAXIMUM RATINGS Input Voltage Power Output Soldering Temperature Range6 -0.5 V to +50 V Internally limited, 17.5W typical 300°C for 10 seconds Operating -55°C to 125°C case Storage -65°C to +135°C Conditions -55°C - Tc - +105°C, VIN = 28 VDC Test Symbol STATIC CHARACTERISTICS OUTPUT Voltage1 VOUT ±5%, CL=0, unless otherwise specified IOUT = 0 (main) TC = 25°C Over Temp TC = 25°C Over Temp 1 IOUT = 0 (dual) Current1,2,3 IOUT 1,4 Ripple Voltage Power 1,2,3 REGULATION Line1,3 Load 1,3 VRIP POUT VRLINE VRLOAD INPUT Current I IN Ripple Current4 IRIP EFFICIENCY EFF ISOLATION ISO LOAD FAULT POWER DISSIPATION 3 PD SWITCHING FREQUENCY FS INHIBIT OPEN CIRCUIT VOLTAGE VOI 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 (dual) VIN = 16, 28, and 40 VDC (main) (+dual) (-dual) (total) VIN = 16, 28, and 40 VDC IOUT = 0, 1000, 2000 mA (main) VIN = 16, 28, and 40 VDC (dual) IOUT = 0, ±84, ±167 mA (dual) VIN = 16, 28, and 40 VDC IOUT = 0, 1000, 2000 mA (main) VIN = 16, 28, and 40 VDC IOUT = 0, ±84, ±167 mA (dual) IOUT = 0, inhibit (pin 8) tied to input return (pin 10) IOUT = 0, inhibit (pin 2) = open IOUT = 2000 mA (main) IOUT = ±167 mA (dual) BW = DC to 2 MHz IOUT = 2000 mA (main) IOUT = ±167 mA (dual) TC = ±25°C Input to output or any pin to case (except pin 7) at 500 VDC, Tc = +25°C Over Load, TC = +25°C5 Short Circuit, TC = +25°C IOUT = 2000 mA (main) IOUT = ±167 mA (dual) ATO2812T/ES Limits Min Max ATO2815T/ES Limits Min Max 4.95 5.05 4.90 5.10 ±11.88 ±12.12 ±11.76 ±12.24 0.0 2000 0.0 ±208 80 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 TC = 25°C Over Temp 40 10 2.5 2.5 15 Units mV p-p W W W W 25 25 mV ±30 ±60 50 ±35 ±75 50 mV mV mV ±60 ±75 mV 15 15 mA 40 50 40 50 mA mA p-p TC = +25°C 76 76 % TC = +25°C 100 100 MΩ TC = +25°C 225 8 6 275 9 13 225 8 6 275 W W kHz 9 13 V Notes: 1. Tested at each output. 2. Parameter guaranteed by line and load regulation tests. 3. At least 20 percent of the total output 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. Above 105°C case temperature, derate output power linearly to 0 at 135°C case. 3 SPECIFICATIONS TCASE = -55°C to +125°C, VIN = +28 V ±5% unless otherwise specified ABSOLUTE MAXIMUM RATINGS Input Voltage Power Output Soldering Temperature Range6 -0.5 V to +50 V Internally limited, 17.5W typical 300°C for 10 seconds Operating -55°C to 135°C case Storage -65°C to +135°C Conditions -55°C - Tc - +125°C, VIN = 28 VDC Test Symbol STATIC CHARACTERISTICS OUTPUT Voltage1 VOUT ±5%, CL=0, unless otherwise specified IOUT = 0 (main) TC = 25°C Over Temp TC = 25°C Over Temp 1 IOUT = 0 (dual) Current1,2,3 IOUT 1,4 Ripple Voltage Power 1,2,3 REGULATION Line1,3 Load 1,3 INPUT Current Ripple Current4 VRIP POUT VRLINE VRLOAD I IN IRIP EFFICIENCY EFF ISOLATION ISO LOAD FAULT POWER DISSIPATION 3 PD SWITCHING FREQUENCY FS INHIBIT OPEN CIRCUIT VOLTAGE VOI 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 (dual) VIN = 16, 28, and 40 VDC (main) (+dual) (-dual) (total) ATO2812T/HB Limits Min Max ATO2815T/HB Limits Min Max 4.95 5.05 4.90 5.10 ±11.88 ±12.12 ±11.76 ±12.24 0.0 2000 0.0 ±208 80 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 VIN = 16, 28, and 40 VDC IOUT = 0, 1000, 2000 mA (main) VIN = 16, 28, and 40 VDC (dual) IOUT = 0, ±84, ±167 mA (dual) VIN = 16, 28, and 40 VDC IOUT = 0, 1000, 2000 mA (main) VIN = 16, 28, and 40 VDC IOUT = 0, ±84, ±167 mA (dual) TC = 25°C Over Temp IOUT = 0, inhibit (pin 8) tied to input return (pin 10) IOUT = 0, inhibit (pin 2) = open IOUT = 2000 mA (main) IOUT = ±167 mA (dual) BW = DC to 2 MHz IOUT = 2000 mA (main) IOUT = ±167 mA (dual) TC = ±25°C Input to output or any pin to case (except pin 7) at 500 VDC, Tc = +25°C Over Load, TC = +25°C5 Short Circuit, TC = +25°C IOUT = 2000 mA (main) IOUT = ±167 mA (dual) 40 10 2.5 2.5 15 Units mV p-p W W W W 25 25 mV ±30 ±60 50 ±35 ±75 50 mV mV mV ±60 ±75 mV 15 15 mA 40 50 40 50 mA mA p-p TC = +25°C 76 76 % TC = +25°C 100 100 MΩ TC = +25°C 225 8 6 275 9 13 225 8 6 275 W kHz 9 13 V Notes: 1. Tested at each output. 2. Parameter guaranteed by line and load regulation tests. 3. At least 20 percent of the total output 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. Above 125°C case temperature, derate output power linearly to 0 at 135°C case. 4 BLOCK DIAGRAMS 5 REGULATOR & OUTPUT FILTER INPUT FILTER 1 4 OUTPUT FILTER 8 2 CONTROLLER ERROR AMP & REF 10 3 MECHANICAL OUTLINE PIN DESIGNATION 2.700 max (68.580) 1.350 max (34.290) 1.00 (25.400) Pin #1 Pin 1 Pin 2 Pin 3 Pin 4 Positive Input +5VDC Output Output Common Neg. Dual Output (12/15VDC) Pin 5 Positive Output (12/15VDC) Pin 10 Pin 9 Pin 8 Pin 7 Input Common N/C Inhibit Input Case Ground Pin 6 N/C 2.360 (59.944) 1.950 max (49.530) 0.162D 2 places (4.115) 5 REGULATOR & OUTPUT FILTER 0.500 max 12.700 1 INPUT FILTER 4 OUTPUT FILTER 8 4 x 0.400 = 1.600 (10.160) (40.640) ERROR AMP & REF 0.040D x 0.260L (1.016) (6.604) 10 .050R max 1.350 1.345 max (34.290) (34.163) 1.00 (25.400) Pin #1 1.950 max (49.530) 0.500 max 12.700 4 x 0.400 = 1.600 (10.160) (40.640) 2 CONTROLLER 0.040D x 0.260L - 10 plcs (1.016) (6.604) Standard 5 3 PART NUMBER ATO 28xx T x / xx Model Temperature Range Omit for -55°C to +85°C ES -55°C to +105°C HB -55°C to +125°C CH-55½C to +125½C Package Option Omit For Standard F - Flange Input Voltage Output Voltage 12 - 15VDC 15 - 15VDC Triple Output CH & HB SCREENING PROCESS Per MIL-STD-883C ATO2815T EFFICIENCY 85 Method Pre-Seal Internal Visual Stabilization Bake Temperature Cycling Constant Acceleration Burn-in Final Electrical Test External Visual Gross Leak Fine Leak 2017 1008 1010 2001 1015 2009 1014 1014 Conditlon 80 C C A, Y1 direction TC = +125°C TC = -55,+25,+125°C Efficiency (%) Test Inspection C A 75 70 * CH includes element evaluation 65 ES SCREENING PROCESS 0 Same as HB screening except as follows: Test Inspection Method Constant Acceleration Burn-in Final Electrical 2001, 500g's 1015, 96 hrs. 25°C only * Non-suffixed STANDARDIZED MILITARY DRAWING CROSS REFERENCE Standardized military drawing number 5962-9095401HXX 5962-9095401HZX 5962-9160201HXX 5962-9160201HZX Vendor CAGE PIN 52467 52467 52467 52467 Vendor similar ATO2815T/CH ATO2815TF/CH ATO2812T/CH ATO2812TF/CH 6 5 10 Output Power (Watts) 15 20 NOTES 7 NOTES © 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. The specifications are subject to change without notice. MIL-STD-1772 Qualified 9502 2270 Martin Avenue Santa Clara CA 95050-2781 (408) 988-4930 FAX (408) 988-2702