DC/DC CONVERTERS VOLT INPUT MFLHP SERIES WATT MODELS OU

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DC/DC CONVERTERS VOLT INPUT MFLHP SERIES WATT MODELS OU

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-55° +100°C operation input Fully Isolated Magnetic feedback Fixed frequency, typical Topology Single Ended Forward transient protection Inhibit function input output Sync function input output Output trim single output models Indefinite short circuit protection Remote sense single output models efficiency Parallelable watts
DC/DC CONVERTERS VOLT INPUT
MFLHP SERIES WATT
MODELS
OUTPUT SINGLE DUAL
Size (max.): 3.005 1.505 0.400 inches (76.33 38.23 10.16 Section case dimensions. Weight: grams maximum Screening: Standard Section screening options, Section ordering information.
DESCRIPTION
MFLHP Series28 volt DC/DC converters rated watts output power over -55° +100°C temperature range with nominal input. dual output models, rated output power drawn from either positive negative outputs. Current sharing allows units paralleled total power watts. welded, hermetically sealed package only 3.005 1.505 0.400 inches, giving series overall power density watts cubic inch.
INHIBIT
MFLHP Series converters have compatible inhibit terminals (INH1 INH2) that used disable power conversion, resulting very quiescent input current. open collector compatible (<0.8 volts) required between INH1 (pin Input Common (pin inhibit converter. open collector compatible (<0.5 volts) required between INH2 (pin Output Common (pin inhibit converter. application intermediate voltages these pins (1.5 10.5 volts) should avoided.
DESIGN MFLHP Series converters switching regulators that quasi-square wave, single ended forward converter design with constant switching frequency kHz. Isolation between input output circuits provided with transformer forward path wide bandwidth magnetic coupling feedback control loop. MFLHP Series uses unique dual loop feedback technique that controls output current with inner feedback loop output voltage with cascaded voltage mode feedback loop. additional secondary current mode feedback loop improves transient response manner similar primary current mode control allows ease paralleling. Tight load regulation achieved through wide-bandwidth magnetic feedback circuit. output voltage single MFLHP models easily trimmed adding external resistor. (See Figure voltage changes with different resistor values.)
CURRENT SHARING PARALLEL OPERATION
Multiple MFLHP converters used parallel drive common load (see Figure this mode operation load current shared three MFLHP converters. current sharing mode, MFLHP converter designated master. SLAVE (pin master left unconnected MSTR/INH2 (pin master connected SLAVE (pin slave units. units designated slaves have MSTR/INH2 (pin connected (pin Figure shows typical setup three units parallel. Note that synchronizing units together (though shown figure) required current sharing operation. second slave unit placed parallel with master slave; this requires (pin master unit connected (pin When paralleled, total combined power ratings MFLHP converters available load. Overload short circuit performance adversely affected during parallel operation.
B2-19
MFLHP SERIES WATT
ABSOLUTE MAXIMUM RATINGS
Input Voltage Power Dissipation (Pd) watts Output Power watts depending model Lead Soldering Temperature lead) 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 Referenced input common used, connect input common Sync Referenced input common Inhibit (INH1, INH2) Open Collector Logic (output disabled) Current 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 Input Output Capacitance typical Isolation megohm minimum Audio Rejection typical Conversion Frequency Free mode typical min, kHz. External sync range Inhibit Voltage (unit enabled) INH1 to12 INH2
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range continuous msec transient Case Operating Temperature (Tc) +100°C full power +135°C absolute Derating Output Power/Current Linearly from 100% 100°C 135°C
PINS USED
TR1, Master, Slave used, leave unconnected
Electrical Characteristics: -50°C +100°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 LOAD FULL INPUT CURRENT CONDITION 25°C 25°C -55°C +100°C LOAD FULL CONTINUOUS TRANSIENT1 LOAD FULL LOAD INHIBITED INH1 INHIBITED INH2 25°C POWER DISSIPATION SHORT CIRCUIT RECOVERY 100% TRANSIENT RECOVERY3 TRANSIENT4 RECOVERY3 DELAY OVERSHOOT MFLHP2805S 4.95 5.00 5.05 3.73 MFLHP2812S 11.88 12.00 12.12 3.95 MFLHP2815S 14.85 15.00 15.15 6.67 4.40 UNITS
INPUT RIPPLE CURRENT EFFICIENCY LOAD FAULT2 25°C STEP LOAD RESP.
STEP LINE RESP.
START-UP
Notes Unit will shut down above approximately will undamaged will restart when voltage drops into normal range. Indefinite short circuit protection guaranteed above 100°C case.
Recovery time measured from application transient point which Vout within final value. Transition time
B2-20
DC/DC CONVERTERS
DUAL OUTPUT MODELS PARAMETER OUTPUT VOLTAGE 25°C OUTPUT CURRENT1 OUTPUT POWER OUTPUT RIPPLE VOLTAGE LINE REGULATION LOAD REGULATION LOAD FULL CROSS REGULATION 25°C INPUT VOLTAGE LOAD FULL INPUT CURRENT 25°C CONDITIONS +VOUT -VOUT EACH OUTPUT TOTAL EACH OUTPUT TOTAL +VOUT -VOUT +VOUT -VOUT +VOUT -VOUT NOTE NOTE CONTINUOUS TRANSIENT4 LOAD FULL LOAD INHIBITED INH1 INHIBITED INH2 BALANCED LOAD POWER DISSIPATION SHORT CIRCUIT RECOVERY %-100%- LOAD TRANSIENT RECOVERY6 TRANSIENT7 RECOVERY6 DELAY OVERSHOOT MFLHP2805D 4.95 5.00 5.05 4.92 5.00 5.08 11.2 16.0 MFLHP2812D 11.88 12.00 12.12 11.82 12.00 12.18
MFLHP SERIES WATT
MFLHP2815D 14.85 15.00 15.15 14.77 15.00 15.23 4.67 6.67 UNITS
Electrical Characteristics: -55°C +100°C Vin, 100% load, free run, unless otherwise specified.
INPUT RIPPLE CURRENT EFFICIENCY 25°C LOAD FAULT5 25°C STEP LOAD RESPONSE VOUT STEP LINE RESPONSE VOUT START-UP
Notes total output power available from either output providing opposite output simultaneously carrying total power. Effect negative output under following conditions: +Pout 70%; -Pout Effect negative output under following conditions: +Pout 50%; -Pout
Unit will shut down above approximately will undamaged will restart when voltage drops into normal range. Indefinite short circuit protection guaranteed above 100°C case. Recovery time measured from application transient point which Vout within final value. Transition time
B2-21
MFLHP SERIES WATT
DC/DC CONVERTERS
Positive Input Input Common INH1 Sync Sync MSTR/INH2 Slave Pos. Sense
SINGLE OUTPUT MODELS CONNECTION DIAGRAMS SENSE PARALLEL
Inhibit Sync
Sense Return Output Common Positive Output
REMOTE SENSE CONNECTION Inhibit Sync MSTR/INH2 Slave Pos. Sense Sense Return Output Common Positive Output
Positive Input Input Common INH1 Sync Sync
OUTPUT VOLTAGE ADJUST CONNECTION
FIGURE SENSE CONNECTIONS TRIM TABLE
Positive Input Input Common INH1 Sync Sync
MSTR/INH2 Slave Pos. Sense Sense Return
Inhibit Sync
MASTER
Output Common Positive Output
CONNECT ONLY WHEN SLAVES USED Positive Input Input Common INH1 Sync Sync MSTR/INH2 Slave Pos. Sense Sense Return Output Common Positive Output
SLAVE
Positive Input Input Common INH1 Sync Sync
MSTR/INH2 Slave Pos. Sense Sense Return Output Common Positive Output
SLAVE
FIGURE PARALLEL CONNECTIONS
B2-22
DC/DC CONVERTERS
Single Output Positive Input Input Common Triple (TRI) Inhibit (INH1) Sync Sync Positive Output Output Common Sense Return Positive Sense Slave Master Inhibit (MSTR/INH2) Dual Output Positive Input Input Common Triple (TRI) Inhibit (INH1) Sync Sync Positive Output Output Common Negative Output connection Slave Master Inhibit (MSTR/INH2) Angled corner indicates one.
MFLHP SERIES WATT
VIEW MFLHP (Pin side, marked side)
Section case dimensions. should connected input common external sync (Sync used. Sense pins must connected their respective outputs used.
FIGURE
MODEL NUMBERING
MFLHP Base Model Input Voltage Output Voltage Number Outputs single, dual) Screening (Standard screening designator this position.)
Typical Performance Curves: 25°C Vin, 100% load, free run, unless otherwise specified.
Efficiency
Efficiency
Efficiency
Output (Watts)
Output Power (Watts)
Output Power (Watts)
MFLHP2805S MFLHP2805D Efficiency
MFLHP2812S MFLHP2812D Efficiency
MFLHP2815S MFLHP2815D Efficiency
FIGURE
FIGURE
FIGURE
B2-23
MFLHP SERIES WATT
DC/DC CONVERTERS
100mV/div.
100%
Typical Performance Curves: 25°C Vin, 100% load, free run, unless otherwise specified.
Attenuation (dB)
20V/div.
100mV/div.
Vout
100%
100.
Frequency (kHz)
MFLHP Series Audio Rejection
µs/div
1ms/div
MFLHP2805S Step Load Response
MFLHP2805S Step Line Response
FIGURE
FIGURE
FIGURE
20V/div.
20V/div.
100% +Vout
1V/div.
Vout
100mV/div.
200mV/div.
100%
-Vout
1ms/div Load
µs/div
1ms/div
MFLHP2815D Step Load Response
MFLHP2805S Turn Response
MFLHP2815D Step Line Response
FIGURE
FIGURE
FIGURE
-Vout Voltage Change
20V/div.
Input Voltage (Volts)
+Vout
MFLHP2805D
MFLHP2805S
MFLHP2815S
MFLHP2812D MFLHP2815D
5V/div.
-Vout
MFLHP2812S
1ms/div Load
MFLHP2815D Turn Response
Output Load +Pout -Pout
Output Power (Watts)
Cross Regulation
Line Dropout
FIGURE
FIGURE
FIGURE
B2-24
20222-001-DTS 1002 technical information believed accurate, responsibility assumed errors omissions. Interpoint reserves right make changes products specifications without notice. MFLHP Series trademark Interpoint. Copyright 1995-1999 Interpoint. rights reserved.
CASE
CASES
Angled corner indicates
1.505 (38.23)
CASE VIEW (PIN SIDE) Figures dimensions
3.005 (76.33) max. Note: Pins shown Case
Materials Header Cold Rolled Steel/Nickel/Gold Cover Kovar/Nickel Pins alloy/Gold compression glass seal Case dimensions inches (mm) Tolerance ±0.005 (0.13) three decimal places ±0.01 (0.2) decimal places unless otherwise specified CAUTION Heat from reflow wave soldering damage device. Solder pins individually with heat application exceeding 300°C seconds pin.
FIGURE CASE MAXIMUM DIMENSIONS
B8-36
CASES
VIEW CASE Series Series: Screening Standard, MFLHP Series, FMD270 Filter, FMD28-461SL Filters: Screening Standard SMFL, SMFLHP, SMHP, Series; SFCS, SFME Filters: Screening Standard, Class HUM70 Module Module: Screening Standard
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
0.400 (10.16) max.
CASE
Seam Seal
0.23 (5.8) Lead Length 0.128 (3.25). 0.040 (1.02)
0.120 (3.05) 0.250 (6.35)
2.750 (69.85)
2.880 (73.15) 3.005 (76.33) max.
0.220 (5.59
FIGURE CASE
0.050 (1.27) 0.000
0.000
B8-37
SCREENING 125°C PRODUCTS
125°C PRODUCTS
TEST (125°C Products) PRE-CAP INSPECTION Method 2017, 2032 TEMPERATURE CYCLE times) Method 1010, Cond. -65°C 150°C Method 1010, Cond. -55°C 125°C CONSTANT ACCELERATION Method 2001, 3000 Method 2001, BURN-IN Method 1015, hours 125°C hours 125°C case (typical) FINAL ELECTRICAL TEST MIL-PRF-38534, Group Subgroups through -55°C, +25°C, +125°C 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 STANDARD /883 (Class
Test methods referenced MIL-STD-883 determined MIL-PRF-38534. *883 products built with element evaluated components 100% tested guaranteed over full military temperature range -55°C +125°C. Applies following products Series Series MFLHP Series Series Series MHF+ Series Series Series** Series Series Series** Series Series Series FM-704A Filter FMD**/FME Filter Filter Filter FMGA Filter FMSA Filter Modules** Modules** Modules
**MFLHP Series, Series, Series, Filters, Modules, Modules offer `883" screening.
C2-10

DC/DC CONVERTERS VOLT INPUT MFLHP SERIES WATT MODELS OU

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