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Input DC/DC Converters Equivalent Module Solutions InfoCard
Linear Technology Corporation, Leader DC/DC Controller ICs, Presents Proven "Drop-In" Designs Input Converters Popular Power Ranges
Production Ready Circuits:
Design Support Tools:
High Efficiency Latest Design Innovations Design Optimized Your System In-House Design Flexibility Control System Cost
Demonstration Boards That Module Footprints Gerber Files Bill Materials Local Application Engineer Support Worldwide Test Results (Conducted Emissions)
DC259: Design Replaces Half-Bricks (See Page
Isolated Step-Down Module Equivalent Circuits
Power Level Output Voltage* 3.3V 3.3V 3.3V 3.3V Output Current Circuit LT1425 LT1425 LT1425 LT1247 LT1431 LT1247 LT1431 LT1247 LT1431 LT1339 LT1431 Demo Board DC211A-A DC211A-B DC211A-C DC227A-A DC227A-B DC227A-C DC259A Input Voltage Isolation Voltage 1500V 1500V 1500V 500V 1500V 500V 1500V Comments Compatible with Standard Modules Compatible with Standard (Half-Brick) Modules 1500V Isolation Version Highest Efficiency Version Compatible with Standard (Half-Brick) Modules
Nonisolated 12V, Step-Down Module Equivalent Circuits
Power Level Output Voltage* 3.3V, Output Current Circuit LT1339 Demo Board DC224 Input Voltage Isolation Voltage Nonisolated Comments Output Evaluation Board, Device Controls
*Call factory other voltage requirements
Proven Designs Built Onto Your Cost Savings Performance Enhancements
registered trademarks Linear Technology Corporation.
Linear Technology Corporation 1630 McCarthy Blvd. Milpitas, 95035-7417 (408) 432-1900 www.linear-tech.com Literature Only: 1-800-4-LINEAR
Input DC/DC Converters Equivalent Module Solutions InfoCard
DC211
Description:
Typical Footprint
0.200 (5.08) 1.00 (25.4) 0.40 (10.2) 0.60 (15.2) -OUT 0.800 (20.32) 2.00 (20.32) 0.300 (7.62) BOTTOM VIEW +OUT
Board Level Replacement "10W" DC/DC Converters Isolated Output from Inputs Optoisolator Required (See Below) Load Compensation Allows Excellent Load Regulation
DC211 Same Footprint
0.500 (12.7)
DC211 Schematic
4.7µH BAS21 BAS21 28.7k LT1425CS RREF SYNC SHDN ROCMP RCMPC 100pF 200V
470pF 100V
12CWQ06FN
VIN+
2.4k
VOUT
150µF 6.3V 10µF
22µF 100V
1.5µF 100V
IRFR220
3.01k
SGND PGND
MMBD914L MMSZ5245BT1 2.2nF 250V
DC211 SCHEM
VIN-
15µF
0.1µF
0.1µF
1.5k
MMSZ5236BT1 7.5V MMBT3906LT3 MMBT2N3904LT1
5.6k
MMSZ5236BT1 7.5V
COILTRONICS CTX02-14143-X3
Load Regulation (Typical)
5.1k 100k 0.1µF
5.10
SHDN
OUTPUT VOLTAGE
5.05 5.00 4.95
4.90
LOAD CURRENT
IC25
Isolation Without Optoisolators
LT1425 senses isolated output voltage directly from primary flyback waveform, improving regulation dynamic response saving space, power cost. designer directly program output voltage load compensation setting resistor values.
Efficiency (Including Preload Resistor R12)
Input/Output 36VIN 48VIN 72VIN 1.5A
Input DC/DC Converters Equivalent Module Solutions InfoCard
DC227
Description:
0.20 (5.1)
Typical Half-Brick Footprint
0.50 (12.7) BOTTOM VIEW -INPUT 0.400 (10.16) CASE -SENSE TRIM REMOTE ON/OFF +SENSE -OUTPUT 0.400 (10.1) 0.700 (17.78) 1.000 (25.40) 1.400 (35.56) MOUNTING HOLES 0.125 PLCS
Board Level Replacement "Half-Brick" DC/DC Converters Isolated 3.3V Output from Input Capacitance Fast Turn-On Time Shutdown Power Consumption Continuous Short-Circuit Protection Overtemperature Protection Output Overvoltage Protection
2.00 (50.8)
1.000 (25.40)
1.400 (35.56)
+INPUT 1.900 (48.26)
+OUTPUT
0.19 (4.8)
1.90 (48.3)
DC227 Fits Standard Footprint
DC227 Simplified Schematic
VIN+ 4.7µH 7.2µH
VOUT+ 3.3V 100µF VOUT-
12µF 100V
100V
CURRENT SENSE 70:1
VIN- LT1431 BIAS SUPPLY REGULATOR LT1247 PULSE WIDTH MODULATOR LT1431 ERROR AMPLIFIER
DC227
VSENSE+ TRIM VSENSE-
ON/OFF
Efficiency
DC227A-C Output Typical Efficiency
36VIN 36VIN 72VIN OUTPUT CURRENT OUTPUT CURRENT 48VIN
DC227A-A/B Output Typical Efficiency
DC227A-A/B 3.3V Output Typical Efficiency
EFFICIENCY
EFFICIENCY
72VIN
EFFICIENCY
48VIN
36VIN 72VIN 48VIN
OUTPUT CURRENT
DC227 TA04
DC227 TA02
DC227 TA01
Input DC/DC Converters Equivalent Module Solutions InfoCard
DC259
Description:
DC259 Fits Half-Brick Footprint
Board Level Replacement "Half-Brick" DC/DC Converters Isolated 3.3V Output from High Efficiency Eliminates Heat Sinks Many Systems Fast Turn-On Time Undervoltage Lockout with Hysteresis Continuous Short-Circuit Protection Overvoltage Protection
DC259 Basic Schematic Efficiency
+VIN 0.1µF MMBD914LT1 BAT54 FMMT718 MURS120 +VIN +VIN INPUT -VIN 2.2µF MMBD914LT1 +VIN 100k 0.1µF 68µF TSPE 100k VBOOST 12VIN SENSE SENSE SGND PGND VREF IAVG COMP RTOP 3.01k 1.2µF 100V 1.2µF 100V LTC1693-1 GND2 VCC1 VCC2 OUT2 OUT1 GND1 FMMT718 0.025 1/2W MURS120 4.7nF 4.7k BAT54 4.7k IRF1310NS 4.7nF LTC1693-1 BAT54 VCC1 GND2 VCC2 OUT2 OUT1 GND1 3.1V 4.7µF MMFT3904 FZT600 0.47µF IRF1310NS 4.8µH PANASONIC ETQP AF4R8H +VOUT +VOUT SUD30N04-10 SUD30N04-10 330µF 6.3V
2.2µF
330µF 6.3V
330µF 6.3V
OUTPUT 5V/10A -VOUT -VOUT BAS21
SANYO OS-CON
0.22µF
+VOUT
0.01µF
LT1339
SL/ADJ
RUN/SHDN 5VREF SYNC PHASE
COLL GND-S GND-F
RMID
4.53k
CNY17-3
100k
LT1431CS8
9.31k
4.42k
SHORT 5VOUT
3.9k
2.2nF 2.4k 2.2nF 0.1µF 4.7nF TYPICAL EFFICIENCY -VOUT
COILCRAFT DO1608-105
BAS21
36VIN 48VIN 72VIN
COILTRONICS CTX02-14675 COILTRONICS CTX02-14678
BAS21
BAS21
5VOUT SHORT JP3, OPEN 3.3VOUT, SHORT JP2, OPEN OUTPUT CURRENT
1339 TA06
Input DC/DC Converters Equivalent Module Solutions InfoCard
Example Module Equivalents
"10W" Size Package
Vendor Part Numbers Output, Isolated Artesyn LPD10-48S05C WB301, WH301 Datel UWR-5/1800-D48A Power DFC10E48S5 Lucent LW010A Astec AA10B-048L-050S, AA10U-048L-050S IAS010ZG Artesyn CXA10-48S3V3, BXA10-48S05 Linear Technology DC211A-A Datel UWR-5/3000-D48A WC301 Output, Isolated Artesyn LPD10-48S12C WB302, WH302 Datel UWR-12/750-D48A Lucent LW010B Astec AA10B-048L-012S, AA10U-048L-012S Artesyn CXA10-48S3V3, BXA10-48S12W Power DFC10E48S12 IAS012ZH Linear Technology DC211A-C Datel UWR-12/1250-D48A Lucent LW015B WB302 Output, Isolated Datel BWR-5/500-D48A, BWR-5/700-D48A Artesyn LPD10-48D05C Astec AA10B-048L-050D, AA10U-048L-050D Power DFC10U48D5 Lucent LW010AJ Artesyn CXA10-48S3V3, BXA10-48D05 Linear Technology DC211A-B Isolated 1500 1544 1500 1500 1500 1500 1500 1500 1500 1500 1500 1544 1500 1500 1500 1500 1000 1500 1500 1500 1500 IOUT 0.267 0.253 0.47, 0.625 0.75 0.83 0.83 0.83 1.25 1.25 1.25 0.5, 0.75 Efficiency Comments Wider Body Wider Body
Wider Body Wider Body Wider Body
Wider Body
Wider Body
Half-Brick Package
Vendor Part Numbers 3.3V Output, Isolated Vicor VI-J3Y-EZ, VI-JNY-EZ HAS020ZE-A Lucent JW030F-M Linear Technology DC227A PICO Elect. LPB3.3S Lucent JW050F1, JAW050F HBS033ZE-A, HES033ZE-A Vicor VI-J3Y-EY, VI-JNY-EY Artesyn BXB50-48S3V3FLT Linear Technology DC259A Output, Isolated Vicor VI-J30-EZ, VI-JN0-EZ Lucent JW030A-M HAS030ZG-A Linear Technology DC227A Lucent JW050A1, JAW050A Pico Verter pV48-5 HBS050ZG-A, HES050ZG-A Vicor VI-J30-EY, VI-JN0-EY Artesyn BXB50-48S05FLT PICO Elect. LPB5S Linear Technology DC259A Datel UCP-5/12-D48 3.3V, Outputs, Nonisolated Linear Technology DC224A Isolated 1500 1500 1050 500, 1500 1000 1500 1500 1500 1500 1500 1500 1050 1500 500, 1500 1500 1500 1500 1500 1500 1000 1500 1500 IOUT Efficiency Comments
Input DC/DC Converters Equivalent Module Solutions InfoCard
SwapCircuits
Features:
Allows Boards Inserted Into Live Backplanes Controlled Inrush Current Short-Circuit Current Protection Voltage Monitoring Overvoltage Protection Microprocessor RESET Programmable Voltage Ramp Rate Foldback Current Limiting Power Supply Sequencing Floating Grounds Level Shifting Logic Signals
Supplies Supplies -10V -80V 16.5V ±12V 1.2V 2.7V 16.5V Features Controls Rail -12V SO-8 -48V Supplies SO-8 Supplies, SO-8, Foldback ILIMIT Fault Protected 33V, 16-Pin SSOP Four Supplies, Tiny 16-Pin SSOP, CompactPCIAlso Power Sequencing, 16-Pin SSOP Device Bay; Sequencing, SO-8 16-Pin SSOP
Device LTC1421 LTC1422 LT1640 LT1641 LTC1642 LTC1643 LTC1645 LTC1647
Other Circuits Isolated Power Telecommunications
Function SLIC Power Supply Ring Tone Generator Supplies from Sources Converters Step-Down Conversion Circuits LT1171, LT1006 LT1684, LT1166 LT1171, LTC1624 LT1680 LT1316 LT1676, LT1776 LT1072/74/76HV LT1170/71/72 LT1339 LTC1628 LTC1629 LTC1929 Many Devices LTC1531, LTC1145, LTC1146 LT1177 (See Above, Swap Circuits) Comments With On-Chip Ringing, Multiple Outputs Software Variable Control, Protected from Transients From Output Power, Efficiency 91%, Off-the-Shelf Magnetics Forward Converter Produces Flyback Converter: 3.4mA; Power 7.4V Inputs, 100/200kHz, 500mA Inputs, Outputs Inputs, 100kHz, Outputs Input, Output PolyPhaseOperation Dramatically Reduces Input Output Ripple, Reduces Inductor Size, Improves Transient Response; Input Voltage 36V; 200A Using Surface Mount Linear Switching Chargers, Terminators; Battery Types Self-Powered Comparator, 3000VRMS Isolation 2500VRMS Digital Isolators 2500VRMS Isolated MOSFET Drivers Positive Negative Voltages 80V, PCI, Single Dual Supplies. Control Power Modules More Information DN130, AN25 Magazine, 6/99 Magazine, 5/98 EDN, 11/24/99, p168 Magazine, 8/97 Magazine, 5/97 Magazine, 11/98; DN202 Magazine, 2/93; AN31; AN32; AN44 Magazine, 6/93, 10/94; DN130 Magazine, 11/97; DN156; AN73 Magazine, 11/99 AN77
High Current Step-Down Conversion
Battery Chargers Isolation Circuits
Power Management Solutions AN68 DN204 Magazine, 2/93 InfoCard Products Catalog, Volume 1999
Swap Circuits
Swap PolyPhase trademarks Linear Technology Corporation. CompactPCI trademark Industrial Computer Manufacturing Group
Linear Technology Corporation 1630 McCarthy Blvd. Milpitas, 95035-7417 (408) 432-1900 www.linear-tech.com Literature Only: 1-800-4-LINEAR
ic25 ©2000 LT/TP 0300
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