DC/DC CONVERTERS VOLT INPUT MHP270 SERIES WATT MODELS O

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DC/DC CONVERTERS VOLT INPUT MHP270 SERIES WATT MODELS O

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-55° +125°C operation input Fully isolated Magnetic feedback Fixed frequency, typical Topology Switch, Single Ended Forward transient protection Inhibit input side output side Sync Indefinite short circuit protection Remote sense single models efficiency Parallelable: converters
DC/DC CONVERTERS VOLT INPUT
MHP270 SERIES WATT
MODELS
OUTPUT SINGLE DUAL
Size (max.): 3.005 1.505 0.400 inches (76.33 38.23 10.16 Figures dimensions. Weight: grams maximum Screening: Standard Table more information
DESCRIPTION
MHP270 SeriesDC/DC converters provide watts output power over full -55°C 125°C temperature range. MHP270 models operate from MIL-STD-704 nominal volt power from continuous operation with surges volts provide isolated outputs VDC. Parallel operation loading conditions supported without requirement external components. MHP270 DC/DC converters constant frequency, pulse width modulated switching power supplies which quasi-square wave, two-switch single-ended forward converter design. Tight load regulation achieved through wide-bandwidth magnetic feedback circuit. five single output converters used parallel power single load simply connecting share pins units. Units this configuration have current sharing accuracy over loading conditions. Series converters feature flexible synchronization scheme which units synchronized external clock another using sync sync pins provided each unit. converters have nominal switching frequency kHz, synchronized frequency from kHz. converters meet wide variety military/aerospace performance environmental specifications. Their continuous operation input voltage (160 400) meets normal operating limits MILSTD-704. unit shuts down above approximately volts, rated withstand surge volts msec. units built fully hermetic thick film hybrids Interpoint's MILSTD-1772 certified facilities. MHP270 Series offer complete list standard features which include: Undervoltage lock-out shuts down when input line voltage falls below approximately provide smooth initialization. Continuous short circuit protection current limit approximately 125%. Soft-start controlled start-up turn-on, release from inhibit, recovery from load fault conditions. Remote sense provide automatic compensation voltage drops output lines single output models.
MHP270 SERIES WATT
ABSOLUTE MAXIMUM RATINGS
Input Voltage Output Power watts depending model Lead Soldering Temperature sec) 300°C Storage Temperature Range (Case) -65°C +150°C
DC/DC CONVERTERS
SYNC INHIBIT (INH1, INH2)
Sync (525 kHz) Duty cycle min, Logic Logic high used, connect input common Referenced input common Sync Referenced input common Inhibit (INH1, INH2) Open Collector Logic (output disabled) INH1 referenced input common Logic INH2 referenced output common Logic Logic high (output enabled) Open collector
TYPICAL CHARACTERISTICS
Output Voltage Temperature Coefficient ppm/°C typical Isolation megohm minimum Conversion Frequency Free mode typical kHz. min., External sync range: Inhibit Voltage (unit enabled) INH1 typ., INH2 Line Drop Vout drops Input voltage Undervoltage Lockout Input voltage
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range continuous msec transient Case Operating Temperature (Tc) +125°C full power Derating Output Power/Current Linearly from 100% 125°C 135°C
Electrical Characteristics: 25°C Vin, 100% load, free run, unless otherwise specified.
SINGLE OUTPUT MODELS PARAMETER OUTPUT VOLTAGE OUTPUT CURRENT OUTPUT POWER OUTPUT RIPPLE VOLTAGE LINE REGULATION LOAD REGULATION INPUT VOLTAGE INPUT CURRENT LOAD FULL CONTINUOUS TRANSIENT1 LOAD INHIBITED INH1 INHIBITED INH2 POWER DISSIPATION SHORT CIRCUIT VOUT STEP LOAD RESP. 100% TRANSIENT RECOVERY3 1800 1000 CONDITION MHP27005S 4.95 5.00 5.05 MHP27012S 11.88 12.00 12.12 MHP27015S 14.85 15.00 15.15 4.33 MHP27028S 27.22 28.00 28.28 2.32 UNITS
INPUT RIPPLE CURRENT EFFICIENCY LOAD FAULT2
Notes Unit will shut down above approximately 425V will undamaged will restart when voltage drops into normal range. Indefinite short circuit protection guaranteed above 125°C case.
Recovery time measured from application transient point which Vout within final value.
DC/DC CONVERTERS
DUAL OUTPUT MODELS PARAMETER OUTPUT VOLTAGE OUTPUT CURRENT1 OUTPUT POWER OUTPUT RIPPLE VOLTAGE LINE REGULATION LOAD REGULATION2, CROSS REGULATION4 INPUT VOLTAGE INPUT CURRENT CONDITIONS +VOUT -VOUT VOUT VOUT LOAD FULL VOUT EFFECT -VOUT CONTINUOUS TRANSIENT5 LOAD FULL LOAD INHIBITED INH1 INHIBITED INH2 BALANCED LOAD POWER DISSIPATION SHORT CIRCUIT VOUT %-100% LOAD7 TRANSIENT RECOVERY 1000 ±2.0 2.80 ±1.0 MHP27005D 4.95 5.00 5.05 4.95 5.00 5.05 MHP27012D 11.88 12.00 12.12 11.88 12.00 12.12 ±2.5
MHP270 SERIES WATT
MHP27015D 14.85 15.00 15.15 14.85 15.00 15.15 ±2.16 3.46 UNITS
Electrical Characteristics: 25°C Vin, 100% load, free run, unless otherwise specified.
3.00 ±1.5
INPUT RIPPLE CURRENT EFFICIENCY LOAD FAULT6
STEP LOAD RESPONSE VOUT
Notes total output power available from either output. Connect Share (12) Output Common when use. Assumes balanced loads outputs. Effect negative output under following conditions: +IOUT total power; -IOUT total power
Unit will shut down above approximately 425V will undamaged will restart when voltage drops into normal range. Indefinite short circuit protection guaranteed above 125°C case. Second output Recovery time measured from application transient point which Vout within final value.
SINGLE OUTPUT MODELS CONNECTION DIAGRAM SENSE
Positive Input Input Common INH2 INH1 Sync Sync
Share Pos. Sense
Inhibit Sync
Sense Return
Output Common Positive Output
REMOTE SENSE CONNECTION
FIGURE SENSE CONNECTIONS
MHP270 SERIES WATT
270V Positive Input Input Common INH2 INH1
DC/DC CONVERTERS
Share Pos. Sense Sense Return Output Common Positive Output
SINGLE OUTPUT MODELS CONNECTION DIAGRAM PARALLEL
MHP270
Sync Sync
MODEL NUMBERING
Base Model Input Voltage Output Voltage Number Outputs single, dual) Screening (Standard screening designator this position.)
Positive Input Input Common INH2 INH1
Share Pos. Sense Sense Return Output Common Positive Output
MHP270
Sync Sync
Positive Input Input Common INH2 MHP270 INH1 Sync Sync
Share
Sense Return
Pos. Sense
Output Common Positive Output
FIGURE PARALLEL CONNECTIONS
Single Output Positive Input Input Common Inhibit (INH2) Inhibit (INH1) Sync Sync Positive Output Output Common Sense Return Positive Sense connection Share Dual Output Positive Input Input Common Inhibit (INH2) Inhibit (INH1) Sync Sync Positive Output Output Common Negative Output connection connection Share Angled corner indicates one.
VIEW (Pin side, marked side)
Figures dimensions.
should connected input common external sync (Sync used. Sense pins must connected their respective outputs used. Share operation characterized dual outputs.
FIGURE
DC/DC CONVERTERS
Angled corner indicates
MHP270 SERIES WATT
1.505 (38.23)
CASE VIEW (PIN SIDE) Figure dimensions
3.005 (76.33) max.
Materials Header Cold Rolled Steel/Nickel/Gold Cover Kovar/Nickel Pins alloy/Gold compression glass seal
FIGURE CASE MAXIMUM DIMENSIONS
Angled corner indicates one. 1.505 (38.23) max. 1.380 (35.05) 1.250 (31.75) 1.050 (26.67) 0.850 (21.59) 0.650 (16.51) 0.450 (11.43) 0.250 (6.35) 0.120 (3.05) 0.000
Seam Seal
0.23 (5.8) Lead Length 0.128 (3.25). 0.040 (1.02)
VIEW CASE
2.880 (73.15) 3.005 (76.33) max.
0.400 (10.16) max.
2.750 (69.85)
0.120 (3.05) 0.250 (6.35)
0.220 (5.59
FIGURE CASE CAUTION Heat from reflow wave soldering damage device. Solder pins individually with heat application exceeding 300°C seconds pin.
Case dimensions inches (mm) Tolerance ±0.005 (0.13) three decimal places, ±0.01 (0.2) decimal places unless otherwise specified Although every effort been made render case drawings actual size, variations printing process cause some distortion. Please refer numerical dimensions accuracy.
0.050 (1.27) 0.000
0.000
MHP270 SERIES WATT
DC/DC CONVERTERS
TABLE ENVIRONMENTAL SCREENING
STANDARD
TEST (125°C Products) PRE-CAP INSPECTION Method 2017, 2032 TEMPERATURE CYCLE times) Method 1010, Cond. -55°C 125°C CONSTANT ACCELERATION Method 2001, BURN-IN hours 125°C case (typical) FINAL ELECTRICAL TEST MIL-PRF-38534, Group Subgroups +25°C case HERMETICITY TESTING Fine Leak, Method 1014, Cond. Gross Leak, Method 1014, Cond. Gross Leak, 10-3) FINAL VISUAL INSPECTION Method 2009
Test methods referenced MIL-STD-883 determined MIL-PRF-38534.
Contact Information: Interpoint Headquarters Phone: 1-800-822-8782 +425-882-3100 Email: power@intp.com
www.interpoint.com Interpoint Phone: +44-1252-872266 Email: poweruk@intp.com Interpoint France Phone: +33-134285455 Email: powerfr@intp.com
27751-001-DTS This revision supercedes previous releases. technical information believed accurate, responsibility assumed errors omissions. Interpoint reserves right make changes products specifications without notice. MHP270 Series trademark Interpoint. Copyright 1994 2002 Interpoint Corporation. rights reserved.

DC/DC CONVERTERS VOLT INPUT MHP270 SERIES WATT MODELS O

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