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MIL-PRF-38534 CERTIFIED ISO-9001 CERTIFIED BY DSCC M.S.KENNEDY CORP. 4707 Dey Road Liverpool, N.Y. 13088 20W DC-DC CONVERTERS BBF2800S SERIES (315) 701-6751 FEATURES: All Ceramic Capacitors Surface Mount Magnetics MIL STD 461C CR03 (DC-DC Converters) 80 Volt Input Transient Tolerent Wide Supply Range - 16V to 50V High Isolation - 500V High Power Density - 17W/in Output Voltage Adjustment - Standard Remote Shutdown Operates to 14V Input at 10W Available with 3.3V, 5V, 12V and 15V Outputs Contact MSK for MIL-PRF-38534 Qualification Status DESCRIPTION: The BBF2800S series of DC-DC converters provides the ruggedness, reliability and features required to meet the advanced design challenges of today's hi-rel market. This has been accomplished using a package having very low thermal gradients, excellent hermeticity and high voltage isolation. The use of advanced substrate and reflow soldering techniques during construction results in a rugged, cost-effective pin solderable package. The BBF2800S hybrid converter series utilizes all ceramic capacitors and surface mount magnetics to provide reliable operation at all operating temperatures while surviving very high G forces. BBF2800S series standard features include kelvin sense, indefinite short circuit protection, remote shutdown, output fault monitoring, turn on voltage point adjustment, switching frequency synchronization of up to 3 units using no external components and pi-network input filtering. An output voltage adjustment/load compensation pin is also standard. Fault tolerance design protects these converters from most external circuit faults. The output and output adjust pins will withstand +35V while the shutdown and all synchronization pins will withstand +50V protecting the converters from a variety of system or board faults, i.e. solder bridges, etc. Unique load fault protection circuitry allows this converter to pull up loads having difficult static load line characteristics and allows short term load excursions significantly beyond ratings in most applications. The BBF2800 series is a current mode push-pull topology converter which operates at a switching frequency of 500KHz. Internal filtering of both input and output eliminates the need for external capacitors in many applications. The 12-pin power dip package allows connection to a heatsink and is hermetically sealed and isolated from the internal circuits. 1 Rev. F 12/06 EQUIVALENT SCHEMATIC TYPICAL APPLICATIONS Isolated Step Down Power Supply Microprocessor Power Source Low Voltage Subsystem Power Source 1 2 3 4 5 6 PIN-OUT INFORMATION +Input Shutdown Plus Clock Adjust/Comp -Output +Output 12 11 10 9 8 7 -Input Timing 2 Timing 1 Case -Sense +Sense ABSOLUTE MAXIMUM RATINGS 6.5C/W NOTES: 1 Continuous operation above the absolute maximum ratings may adversly effect the device performance and/or life cycle. 2 Rev. F 12/06 +50V VIN Input Voltage (pin 7 to pin 6) Input Transient (pin 7 to pin 6 @ 50mS) 80V VINT Output Current 1 IOUT BBF2803S 5.5A BBF2805S 4.0A BBF2812S 1.9A BBF2815S 1.5A Case Temperature Range TC BBF2800S H/E -55C to +125C BBF2800S -40C to +85C TST Storage Temperature Range TLD Lead Temperature Range (10 Seconds) PD Power Dissipation TJ Junction Temperature JC Thermal Resistance (Switches) -65C to +150C 300C See Efficiency Curve 150C ELECTRICAL SPECIFICATIONS BBF2803S Parameter Test Conditions 1 Group A Subgroup 1 2,3 Output Current 2 8 16VVIN40V 1 2,3 1 2,3 1 2,3 1 2,3 1 2,3 1 2,3 Step Load Response 2 IOUT=2.75A to/from 5.50A Transition TIme=30S IOUT=2.75A to/from 5.50A Transition TIme=30S VIN=16V to/from 40V Transition Time=30S VIN=16V to/from 40V Transition Time=30S IOUT=5.5A 4 5,6 4 5,6 4 5,6 4 5,6 4 5,6 4 5,6 4 5,6 POUT=18W MAX. Enabled, IOUT=0mA Disabled IOUT=0mA Capacitive Load 2 Isolation Short Circuit Current Limit 7 Switching Frequency VOUT Adjustment Range RPOT=50K No Effect on DC Performance Input to output or any pin to case @ 500V 1,2,3 1 2,3 1,2,3 1,2,3 1 1 4 1 BBF2803S H/E Min. 3.20 3.15 500 500 61 58 16 100 5.5 475 10 BBF2803S Min. 3.18 500 61 16 100 5.5 475 10 Units Max. 3.42 5500 60 60 25 20 700 220 800 220 300 60 100 500 60 40 40 2.5 300 8.5 525 VDC VDC mA mA mVrms mVrms mArms mArms mV mV mV mV % % mV mV S S mV mV S S mV mV mS mS S S mS V mA mA mA F M A KHz % Typ. 3.30 20 20 2 1 66 400 100 500 80 0 30 120 20 35 1.25 7.8 500 - Max. 3.40 3.45 5500 5500 50 60 50 60 20 50 15 40 600 800 200 300 750 1000 200 300 300 500 60 100 500 550 60 40 40 50 2.5 300 8.5 525 - Typ. 3.30 20 20 2 1 66 400 100 500 80 0 30 120 20 35 1.25 7.8 500 - Output Voltage Output Voltage Ripple BW=10KHz to 2MHz Input Current Ripple 2 BW=10KHz to 2MHz Line Regulation VIN=16V to 40V Load Regulation IOUT=0.5A to 5.5A Efficiency Step Load Recovery 2 Step Line Response 2 Step Line Recovery 2 Start Up Overshoot 2 Start Up Delay IOUT=5.5A Shutdown Delay 2 Shutdown Recovery 2 Input Voltage Range 2 Quiescent Current NOTES: +VIN = 28V, IOUT = 5.5A, TA=TC=25C unless otherwise specified. Guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only. Industrial grade and "E" suffix devices shall be tested to subgroups 1 and 4 unless otherwise specified. Military grade devices ("H" suffix) shall be 100% tested to subgroups 1, 2, 3 and 4. Subgroups 5 and 6 testing available upon request. Subgroup 1, 4 TA=TC=+25C 2, 5 TA=TC=+125C 3, 6 TA=TC= -55C 7 Device has internal shutdown feature that pulses the output with a low duty cycle during faults. 8 At case temperatures above 90C, the BBF2803 requires VIN>16V to support a 5.5A load. At 125C, 18V input is required to support 5.5A output; 16V will support 4A output at 125C. 1 2 3 4 5 6 3 Rev. F 12/06 ELECTRICAL SPECIFICATIONS BBF2805S Parameter Test Conditions 1 Group A Subgroup 1 2,3 Output Current 2 16VVIN40V 1 2,3 Output Voltage Ripple BW=10KHz to 2MHz 1 2,3 Input Current Ripple 2 BW=10KHz to 2MHz 1 2,3 Line Regulation VIN=16V to 40V 1 2,3 Load Regulation IOUT=0.4A to 4.0A 1 2,3 Efficiency IOUT=2A to/from 4A Transition TIme=30S IOUT=2A to/from 4A 2 Transition TIme=30S VIN=16V to/from 40V Transition Time=30S VIN=16V to/from 40V Transition Time=30S IOUT=4.0A 1 2,3 Step Load Response 2 4 5,6 4 5,6 4 5,6 4 5,6 4 5,6 IOUT=4.0A 4 5,6 4 5,6 POUT=20W MAX. Enabled, IOUT=0mA Disabled IOUT=0mA Capacitive Load 2 Isolation Short Circuit Current Limit 7 Switching Frequency VOUT Adjustment Range RPOT=50K No Effect on DC Performance Input to output or any pin to case @ 500V 1,2,3 1 2,3 1,2,3 1,2,3 1 1 4 1 BBF2805S H/E Min. 5.00 4.90 400 400 65 61 16 100 4.0 475 10 BBF2805S Min. 4.95 400 65 16 100 4.0 475 10 Units Max. 5.15 4000 60 60 50 50 1200 220 900 220 400 60 100 500 60 40 40 2.5 300 7.0 525 VDC VDC mA mA mVrms mVrms mArms mArms mV mV mV mV % % mV mV S S mV mV S S mV mV mS mS S S mS V mA mA mA F M A KHz % Typ. 5.05 20 20 5 2 72 700 100 500 80 0 30 120 20 35 1.25 6.0 500 - Max. 5.10 5.20 4000 4000 50 60 50 60 25 50 25 50 1000 1500 200 300 800 1100 200 300 400 800 60 100 500 550 60 40 40 50 2.5 300 7.0 525 - Typ. 5.05 20 20 5 2 72 700 100 500 80 0 30 120 20 35 1.25 6.0 500 - Output Voltage Step Load Recovery Step Line Response 2 Step Line Recovery 2 Start Up Overshoot 2 Start Up Delay Shutdown Delay 2 Shutdown Recovery 2 Input Voltage Range 2 Quiescent Current NOTES: 1 2 3 4 5 6 +VIN = 28V, IOUT = 4.0A, TA=TC=25C unless otherwise specified. Guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only. Industrial grade and "E" suffix devices shall be tested to subgroups 1 and 4 unless otherwise specified. Military grade devices ("H" suffix) shall be 100% tested to subgroups 1, 2, 3 and 4. Subgroups 5 and 6 testing available upon request. Subgroup 1, 4 TA=TC=+25C 2, 5 TA=TC=+125C 3, 6 TA=TC= -55C 7 Device has internal shutdown feature that pulses the output with a low duty cycle during faults. 4 Rev. F 12/06 ELECTRICAL SPECIFICATIONS BBF2812S Parameter Test Conditions 1 Group A Subgroup 1 2,3 Output Current 2 16VVIN40V 1 2,3 Output Voltage Ripple BW=10KHz to 2MHz 1 2,3 Input Current Ripple 2 BW=10KHz to 2MHz 1 2,3 Line Regulation VIN=16V to 40V 1 2,3 Load Regulation IOUT=0.19A to 1.9A 1 2,3 Efficiency Step Load Response 2 IOUT=0.95A to/from 1.9A Transition TIme=30S IOUT=0.95A to/from 1.9A Transition TIme=30S VIN=16V to/from 40V Transition Time=30S VIN=16V to/from 40V Transition Time=30S IOUT=1.9A 1 2,3 4 5,6 4 5,6 4 5,6 4 5,6 4 5,6 IOUT=1.9A 4 5,6 4 5,6 POUT=22.8W MAX. Enabled, IOUT=0mA Disabled IOUT=0mA Capacitive Load 2 Isolation Short Circuit Current Limit Switching Frequency VOUT Adjustment Range RPOT=50K 7 No Effect on DC Performance Input to output or any pin to case @ 500V 1,2,3 1 2,3 1,2,3 1,2,3 1 1 4 1 BBF2812S H/E Min. 12.00 11.80 190 190 67 60 16 100 1.9 475 10 BBF2812S Min. 11.95 190 67 16 100 1.9 475 10 Units Max. 12.15 1900 60 40 60 60 1400 220 550 220 500 60 500 60 40 40 2.5 300 3.4 525 VDC VDC mA mA mVrms mVrms mArms mArms mV mV mV mV % % mV mV S S mV mV S S mV mV mS mS S S mS V mA mA mA F M A KHz % Typ. 12.05 25 20 5 5 74 700 100 300 70 0 20 120 20 35 1.25 2.8 500 - Max. 12.10 12.30 1900 1800 50 60 40 50 50 100 50 100 1200 1600 200 300 500 800 200 300 400 800 60 100 500 550 60 40 40 50 2.5 300 3.4 525 - Typ. 12.05 25 20 5 5 74 700 100 300 70 0 20 120 20 35 1.25 2.8 500 - Output Voltage Step Load Recovery 2 Step Line Response 2 Step Line Recovery 2 Start Up Overshoot Start Up Delay 2 Shutdown Delay 2 Shutdown Recovery 2 Input Voltage Range 2 Quiescent Current NOTES: +VIN = 28V, IOUT = 1.9A, TA=TC=25C unless otherwise specified. Guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only. Industrial grade and "E" suffix devices shall be tested to subgroups 1 and 4 unless otherwise specified. Military grade devices ("H" suffix) shall be 100% tested to subgroups 1, 2, 3 and 4. Subgroups 5 and 6 testing available upon request. Subgroup 1, 4 TA=TC=+25C 2, 5 TA=TC=+125C 3, 6 TA=TC= -55C 7 Device has internal shutdown feature that pulses the output with a low duty cycle during faults. 1 2 3 4 5 6 5 Rev. F 12/06 ELECTRICAL SPECIFICATIONS BBF2815S Parameter Test Conditions 1 Group A Subgroup 1 2,3 Output Current 2 16VVIN40V 1 2,3 Output Voltage Ripple BW=10KHz to 2MHz 1 2,3 Input Current Ripple 2 BW=10KHz to 2MHz 1 2,3 Line Regulation VIN=16V to 40V 1 2,3 Load Regulation IOUT=0.15A to 1.5A 1 2,3 Efficiency IOUT=0.75A to/from 1.50A Transition TIme=30S IOUT=0.75A to/from 1.50A Transition TIme=30S VIN=16V to/from 40V Transition Time=30S VIN=16V to/from 40V Transition Time=30S IOUT=1.5A 1 2,3 Step Load Response 2 4 5,6 4 5,6 4 5,6 4 5,6 4 5,6 IOUT=1.5A 4 5,6 4 5,6 POUT=22.5W MAX. Enabled, IOUT=0mA Disabled IOUT=0mA Capacitive Load 2 Isolation Short Circuit Current Limit 7 Switching Frequency VOUT Adjustment Range RPOT=50K No Effect on DC Performance Input to output or any pin to case @ 500V 1,2,3 1 2,3 1,2,3 1,2,3 1 1 4 1 BBF2815S H/E Min. 15.00 14.80 150 150 68 66 16 100 1.5 475 10 BBF2815S Min. 14.95 150 68 16 100 1.5 475 10 Units Max. 15.25 1500 60 40 60 60 1400 220 550 220 500 60 500 60 40 40 2.5 300 3.0 525 VDC VDC mA mA mVrms mVrms mArms mArms mV mV mV mV % % mV mV S S mV mV S S mV mV mS mS S S mS V mA mA mA F M A KHz % Typ. 15.10 25 20 10 20 73 800 100 300 80 0 20 120 20 35 1.25 2.4 500 - Max. 15.20 15.40 1500 1400 50 60 40 50 50 125 50 125 1200 1700 200 300 500 800 200 300 400 800 60 100 500 550 60 40 40 50 2.5 300 3.0 525 - Typ. 15.10 25 20 10 20 73 800 40 300 80 0 20 120 30 35 1.25 2.4 500 - Output Voltage Step Load Recovery 2 2 Step Line Response Step Line Recovery 2 Start Up Overshoot Start Up Delay 2 Shutdown Delay 2 Shutdown Recovery 2 Input Voltage Range 2 Quiescent Current NOTES: +VIN = 28V, IOUT = 1.5A, TA=TC=25C unless otherwise specified. Guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only. Industrial grade and "E" suffix devices shall be tested to subgroups 1 and 4 unless otherwise specified. Military grade devices ("H" suffix) shall be 100% tested to subgroups 1, 2, 3 and 4. Subgroups 5 and 6 testing available upon request. Subgroup 1, 4 TA=TC=+25C 2, 5 TA=TC=+125C 3, 6 TA=TC= -55C 7 Device has internal shutdown feature that pulses the output with a low duty cycle during faults. 1 2 3 4 5 6 6 Rev. F 12/06 APPLICATION NOTES POWER SUPPLIES The output voltage of the BBF2800S may be adjusted from 90% to 110% of nominal value by the use of a 50K potentiometer as shown. Adjustment beyond this range is possible however certain characteristics of the converter such as but not limited to input voltage range, efficiency, ripple and temperature performance will change. Characterization by the user is recommended in such applications. MULTIPLE CONVERTER SYNCHRONIZATION Synchronized operation of up to three BBF2800S series converters may be accomplished without external components. One unit selected to be the master is connected normally with pin 10 grounded. The clock output pin 3 will provide the sync signal for up to two slave units. The slave units have pin 10 not connected and receive the clock signal into pin 11. The clock signal lines may be shielded to prevent radiation. A separate 50 ohm coax to each slave unit is recommended in order to preserve signal integrity. Shield ends should be connected to pin 12 of the nearest converter. BBF2800S converters may also be synchronized to an external 500 KHz (+/- 5%) frequency source driving pin 11 of the converters. Pin 10 is not connected. The converters synchronize to the positive edge of the frequency source allowing a variety of wave forms (pulse, square, spike) to be used. Pin 11 is internally capacitively coupled allowing unipolar or bipolar frequency sources to be used. The source should have a waveform rise time of 20 ns or less and be capable of driving at least 4 volts peak into each 50 ohm pin 11 input (50 volts peak max). An externally synchronized unit may be used to synchronize other (slave) units. The slave units may be used in turn to synchronize other slave units from their pin 3 outputs. Each "generation" of slave units has a delay (100-200ns typical) from the unit that it is synchronizing to. Adjust/comp (pin 4) may be driven by external circuitry referenced to pin 8 (-output sense) if desired. Grounding pin 4 causes output voltage to increase (25% typically) while driving pin 4 above 1.3V causes output voltage to decrease. Pin 4 may be driven through 10K or more if connection of the comp function is also required. The comp function of pin 4 allows transient response and phase margin to be tailored to suit a specific application. This feature may be utilized by connecting a small (1-500nF) capacitor between pins 4 and 6 or 7. This is generally recommended when very large low ESR load capacitances are used. SHUTDOWN PLUS Pin 2 is used for remote shutdown, output fault detection, and/or setting the input voltage point at which the converter will turn on as shown in the typical application diagram. No connection to pin 2 is necessary for normal operation of the converter. Pin 2 is referenced to pin 12 (-input). Shutdown may be implemented by simply connecting pin 2 to an open collector logic output or switch rated at 2.5mA, 25Vdc or higher. Input voltage turn on point is programmed with a single resistor from pin 2 to 12. An input turn on/off hysteresis (typically 3.5% of Vin) will be observed. This should be considered when making or verifying set point adjustment. The value of the setpoint resistor may be determined by the following: R= 210*10 ETO-9.5 (10% accuracy at 25C) Set point temperature coefficient is typically +400ppm/C. Output fault monitoring is accomplished by observing pin 2 with a high impedance monitoring circuit. Pin 2 voltage drops from over 10V to below 1V when a load fault causes the converters fault protection circuitry to activate. It will remain low for at least 100mS and return high. If the load fault is still present pin 2 will return low and the cycle will repeat. If there is no input setpoint programming resistor already in place a resistor >400K from pin 2 to 12 will provide pin 2 pull down. 7 Rev. F 12/06 TYPICAL APPLICATION CIRCUIT The above diagram shows the remote sense feature which reduces Vo errors due to the resistance of the conductors feeding the load. This diagram also shows the connections for non-synchronized operation (TIMING 1 and 2) as well as output voltage trim, remote shutdown, fault monitoring, and input voltage turn on point adjustment. 8 Rev. F 12/06 TYPICAL PERFORMANCE CURVES BBF2803S EFFICIENCY CONTOURS 40 EFFICIENCY CONTOURS 40 EFFICIENCY CONTOURS 40 INPUT VOLTAGE, VIN (V) INPUT VOLTAGE, VIN (V) 35 30 25 20 68% 25 69% 50% TEMP = 54% -55C 58% 60% 62% 64% 65% 66% INPUT VOLTAGE, VIN (V) 40% 50% TEMP = 25C 56% 35 60% 64% 66% 30 67% 30% 40% 40% 50% 60% 35 64% 66% TEMP = 125C 30 67% 25 20 68% 69% 70% 64% 20 70% 66% 16 .55 1.1 2.2 3.3 4.4 5.5 OUTPUT CURRENT, IOUT (A) 16 .55 1.1 2.2 3.3 4.4 5.5 OUTPUT CURRENT, IOUT (A) 67% 16 .55 1.1 2.2 3.3 4.4 5.5 OUTPUT CURRENT, IOUT (A) LOW LINE DROP OUT OUTPUT RESPONSE, X (UNITS/DIV) 20 OUTPUT DC CURRENT RATING LOAD TRANSIENT RESPONSE OUTPUT RESPONSE, X (UNITS/DIV) LOAD TRANSIENT RESPONSE 100F TEMP = 25C INPUT VOLTAGE, VIN (V) 1V 16 14 12 10 0.0 1V 18 VOUT VOUT 5.5A 5.5A 2A IOUT 2A 2.75A IOUT 2.75A NO OUTPUT BUS CAPCITANCE INCLUDES 100F ON OUTPUT BUS 2.0 4.0 6.0 OUTPUT CURRENT, IOUT (A) TIME, t (100sec/DIV) TIME, t (200sec/DIV) LOAD TRANSIENT RESPONSE 1000F OUTPUT RESPONSE, X (UNITS/DIV) OUTPUT RESPONSE, X (UNITS/DIV) 10V 100mV LINE TRANSIENT RESPONSE LOAD = 5.5A VOUT 1V VOUT 40V 5.5A 2A IOUT 2.75A 16V VIN INCLUDES 100F ON OUTPUT BUS INCLUDES 1000F ON OUTPUT BUS TIME, t (500sec/DIV) TIME, t (200sec/DIV) TURN ON THRESHOLD 28 TURN ON RESPONSE 0 AUDIO REJECTION VIN = 28VDC IOUT = 5.5 Amps TURN ON VOLTAGE, ETO (V) RESPONSE, X (UNITS/DIV) 10 V 2V 3.3V VOUT LOAD = 5.5A 0V 28V AUDIO REJECTION, AV (dB) -20 -40 -60 -80 24 20 16 VIN 0V INCLUDES 100F ON OUTPUT BUS 12 10K 20K 30K 40K 60K 90K SET POINT RESISTOR, RSP () TIME, t (5msec/DIV) -100 100 200 400 1K 2K 10K 20K FREQUENCY, f (Hz) 100K 9 Rev. F 12/06 TYPICAL PERFORMANCE CURVES BBF2805S EFFICIENCY CONTOURS 40 EFFICIENCY CONTOURS 40 40% EFFICIENCY CONTOURS 40 INPUT VOLTAGE, VIN (V) INPUT VOLTAGE, VIN (V) INPUT VOLTAGE, VIN (V) 30% 40% 50% 35 TEMP = 25C 60% 63% 66% 30 68% 70% 71% 25 72% 35 50% 55% 60% 30% 50% 30 25 20 15 64% 66% 68% 69% 70% TEMP = -55C 35 30 60% 64% 67% 69% 70% 71% TEMP = 125C 25 20 16 .4 20 73% 71% 72% 73% 67% 16 .4 .8 1.6 2.4 3.2 OUTPUT CURRENT, IOUT (A) 4 .8 1.6 2.4 3.2 OUTPUT CURRENT, IOUT (A) 4 .8 1.6 2.4 3.2 OUTPUT CURRENT, IOUT (A) 4 LOW LINE DROP OUT OUTPUT RESPONSE, X (UNITS/DIV) 20 OUTPUT DC CURRENT RATING LOAD TRANSIENT RESPONSE OUTPUT RESPONSE, X (UNITS/DIV) LOAD TRANSIENT RESPONSE 100F TEMP = 25C INPUT VOLTAGE, VIN (V) 1V 16 14 12 10 0.0 4A 1V 18 VOUT VOUT 4A 1A IOUT NO OUTPUT BUS CAPCITANCE 1A 2A 2A IOUT INCLUDES 100F ON OUTPUT BUS 1.0 2.0 3.0 4.0 5.0 OUTPUT CURRENT, IOUT (A) TIME, t (100sec/DIV) TIME, t (200sec/DIV) LOAD TRANSIENT RESPONSE 1000F OUTPUT RESPONSE, X (UNITS/DIV) OUTPUT RESPONSE, X (UNITS/DIV) 10V 100mV LINE TRANSIENT RESPONSE LOAD 4A VOUT 1V VOUT 4A 40V 1A 2A IOUT INCLUDES 1000F ON OUTPUT BUS 16V VIN INCLUDES 100F ON OUTPUT BUS TIME, t (500sec/DIV) TIME, t (200sec/DIV) TURN ON THRESHOLD 28 TURN ON RESPONSE 0 AUDIO REJECTION VIN = 28VDC IOUT = 4 Amps TURN ON VOLTAGE, ETO (V) RESPONSE, X (UNITS/DIV) 10 V 2V 5.1V VOUT 0V 28V AUDIO REJECTION, AV (dB) -20 -40 -60 -80 24 LOAD 4A 20 16 0V VIN INCLUDES 100F ON OUTPUT BUS 12 10K 20K 30K 40K50K 70K 90K SET POINT RESISTOR, RSP () TIME, t (5msec/DIV) -100 100 200 400 1K 2K 10K 20K FREQUENCY, f (Hz) 100K 10 Rev. F 12/06 MECHANICAL SPECIFICATIONS Weight=61 Grams Typical Contains Internal BeO (Beryllium Oxide) NOTE: ALL DIMENSIONS ARE 0.010 INCHES UNLESS OTHERWISE LABELED. ESD Triangle indicates Pin 1. ORDERING INFORMATION BBF2812S SCREENING BLANK= INDUSTRIAL; E= EXTENDED RELIABILITY; H= MIL-PRF-38534 CLASS H SINGLE OUTPUT OUTPUT VOLTAGE 03=3.3V; 05=5V; 12=12V; 15=15V NOMINAL INPUT VOLTAGE GENERAL PART NUMBER The above example is an industrial grade 12V single output converter M.S. Kennedy Corp. 4707 Dey Road, Liverpool, New York 13088 Phone (315) 701-6751 FAX (315) 701-6572 www.mskennedy.com The information contained herein is believed to be accurate at the time of printing. MSK reserves the right to make changes to its products or specifications without notice, however, and assumes no liability for the use of its products. Please visit our website for the most recent revision of this datasheet. Contact MSK for MIL-PRF-38534 qualification status. 11 Rev. F 12/06 |
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