SENSE SENSE ADJUST STATUS RETURN VAUX INHIBIT SYNC ISHARE TEMP -VIN IN

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SENSE SENSE ADJUST STATUS RETURN VAUX INHIBIT SYNC ISHARE TEMP -VIN IN

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Pulsed DC/DC Converter with Integral Filter ADDC27008PB
SENSE SENSE ADJUST STATUS RETURN VAUX INHIBIT SYNC ISHARE TEMP -VIN INPUT SIDE CONTROL CIRCUIT FIXED FREQUENCY DUAL INTERLEAVED POWER TRAIN RETURN OUTPUT FILTER RETURN +VOUT +VOUT +VOUT OUTPUT SIDE CONTROL CIRCUIT
FEATURES Input, Pulse Output Integral Filter Ultrafast Transient Response Minimal Output Voltage Deviation Weight: Grams NAVMAT Derated Many Protection System Features APPLICATIONS Distributed Power Architecture Driving Modules Motor Actuator Drivers
GENERAL DESCRIPTION
ADDC27008PB hybrid military dc/dc converter compensated specifically pulse applications where fast transient response minimum output voltage deviation required. also designed deliver very high, pulsed output power. unit designed high reliability high performance applications where saving space and/or weight critical.
ADDC27008PB been characterized over wide variety load conditions. transient response been insure output stability over broad range load capacitance. applications that require factory modified compensation optimized specific load, applications that require different output voltage than contact factory. ADDC27008PB available hermetically sealed, molybdenum based hybrid package easily heatsink mountable. MIL-STD-883 devices, contact factory availability.
+VIN FILTER
PRODUCT HIGHLIGHTS
W/cubic inch pulsed power density with integral filter Ultrafast transient response time with minimum output voltage deviation Light weight: grams Operational survivable over wide range input conditions: V-440 survives line, high line High reliability; NAVMAT derated Protection features include: Output Overvoltage Protection Output Short Circuit Current Protection Thermal Monitor/Shutdown Input Overvoltage Shutdown Input Transient Protection System level features include: Current Sharing Parallel Operation Logic Level Disable
Output Status Signal Synchronization Multiple Units Input Referenced Auxiliary Voltage Supply
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Information furnished Analog Devices believed accurate reliable. However, responsibility assumed Analog Devices use, infringements patents other rights third parties which result from use. license granted implication otherwise under patent patent rights Analog Devices. Technology Way, P.O. 9106, Norwood, 02062-9106, U.S.A. Tel: 617/329-4700 World Wide Site: http://www.analog.com Fax: 617/326-8703 Analog Devices, Inc., 1997
ADDC27008PB-SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
Parameter INPUT CHARACTERISTICS Steady State Operating Input Voltage Range1 Abnormal Operating Input Voltage Range (Per MIL-STD-704D)1 Load Input Current Disabled Input Current OUTPUT CHARACTERISTICS2, Output Voltage (VO) Case Temp Full Full +25°C +25°C +25°C Full Full +25°C +25°C +25°C Full +25°C +25°C +25°C
unless otherwise noted; full temperature range temperatures case temperature measured center package bottom.)
Test Level Conditions 1.25 Pulsed 1.25 Pulsed 1.25 1.25 1.25 Pulsed, 1.25 Pulsed Pulsed Open Remote Sense Connection VOUT RSHORT Circuit Input Output Case (Reference Section Entitled "Transient Response") (Reference Section Entitled "Response Pulse") From Inhibit High Status High 72.5 7.92 7.84 7.84 8.00 ADDC27008PB 8.08 8.16 8.16 Units
Line Regulation Load Regulation Output Ripple/Noise4 Output Current (IO)5 Output Overvoltage Protection Output Current Limit Output Short Circuit Current ISOLATION CHARACTERISTICS Isolation Resistance DYNAMIC CHARACTERISTICS4 Step Changes Load (min max) Step Changes Load (max min) Soft Start Turn-On Time THERMAL CHARACTERISTICS Efficiency
1.25
+25°C +25°C
+25°C
Hottest Junction Temperature5 CONTROL CHARACTERISTICS Clock Frequency ADJUST (Pin STATUS (Pin VAUX (Pin (nom) INHIBIT (Pin (Open Circuit) SYNC (Pin ISHARE (Pin TEMP (Pin NOTES
+25°C Full +25°C Full +90°C Full +25°C +25°C +25°C +25°C +25°C +25°C +25°C +25°C +25°C +25°C +25°C
12.5 12.5 IAUX Load Current 12.5
0.85
0.15 15.15
0.99
15.4
14.9
2.45 2.55 3.90 2.65
upper limit rated transient condition lower limit rated continuous operation during emergency condition. Steady state abnormal input voltage range require source impedance sufficient insure input stability line. sections entitled System Instability Considerations Input Voltage Range. Measured remote sense points. Tests performed continuous load pulsed load. Unit does regulate zero load. Refer section entitled Internal "Start-Up Circut". CLOAD 1,000 Output ripple/noise measured converter output; smaller external load capacitance. Unit stable LOAD ranging from 4,000 Refer section entitled "Pulse Output Power Pulse Length" more information. Unit internal pull-down; refer section entitled (SYNC). Specifications subject change without notice.
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ADDC27008PB
ABSOLUTE MAXIMUM RATINGS* DESCRIPTIONS
INHIBIT -0.5 SYNC -0.5 ISHARE -0.5 TEMP -0.3 Common-Mode Voltage, Input Output Lead Soldering Temp sec) +300°C Storage Temperature -65°C +150°C Maximum Junction Temperature +150°C Maximum Case Operating Temperature +125°C
*Absolute maximum ratings limiting values, applied individually, beyond which serviceability circuit impaired. Functional operability under these conditions necessarily implied. Exposure absolute maximum rating conditions extended periods time affect device reliability.
Name
Function
ORDERING GUIDE
Operating Temperature Range (Case)
Device
ADDC27008PBKV -40°C +85°C Hermetic Package ADDC27008PBTV -55°C +90°C Hermetic Package ADDC27008PBTV/QMLE* -55°C +125°C Hermetic Package
*Contact factory Standard Microcircuit Drawing number availability.
EXPLANATION TEST LEVELS Test Level
100% production tested.
100% production tested +25°C, sample tested specified temperatures. Sample tested only. Parameter guaranteed design characterization testing. Parameter typical value only.
Description
Feedback loop connection remote sensing output voltage. Must always connected output return proper operation. +SENSE Feedback loop connection remote sensing output voltage. Must always connected +VOUT proper operation. ADJUST Adjusts output voltage setpoint. STATUS Indicates output voltage within nominal. Active high referenced -SENSE (Pin VAUX level auxiliary voltage supply referenced input return (Pin 10). INHIBIT Power Supply Inhibit. Active referenced input return (Pin 10). SYNC Clock synchronization input multiple units; referenced input return (Pin 10). ISHARE Current share which allows paralleled units share current typically within full load; referenced input return (Pin 10). TEMP Case temperature indicator temperature shutdown override; referenced input return (Pin 10). -VIN Input Return. +VIN +270 Nominal Input Bus. Output. +VOUT +VOUT Output. +VOUT Output. RETURN Output Return. RETURN Output Return. RETURN Output Return.
CONFIGURATION
-SENSE
devices 100% production tested +25°C. 100% production tested temperature extremes military temperature devices; guaranteed design characterization testing industrial devices.
VIEW
CAUTION (electrostatic discharge) sensitive device. Electrostatic charges high 4000 readily accumulate human body test equipment discharge without detection. Therefore, proper precautions recommended avoid performance degradation loss functionality.
WARNING!
SENSITIVE DEVICE
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SENSE SENSE ADJUST STATUS RETURN VAUX INHIBIT SYNC ISHARE TEMP -VIN IN

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