Data Sheet - IGBT• Electrical specifications for common IPM applications • TTL compatible •...
Transcript of Data Sheet - IGBT• Electrical specifications for common IPM applications • TTL compatible •...
Features• ShortpropagationdelaysforTTLandIPMapplications• 15kV/µsminimumCommonModeTransientimmu-
nityatVCM=1500VforTTL/loaddrive• HighCTRatTA=25°C
>25%forHCPL-4504/0454>23%forHCNW4504>19%forHCPL-J454
• ElectricalspecificationsforcommonIPMapplications• TTLcompatible• Guaranteedperformancefrom0°Cto70°C• Opencollectoroutput• Safetyapproval:
ULrecognized –3750Vrms/1min.forHCPL-4504/0454/J454
–5000Vrms/1min.forHCPL-4504Option020andHCNW4504
CSAapprovedIEC/EN/DINEN60747-5-2approved
–VIORM=560VpeakforHCPL-0454Option060 –VIORM=630VpeakforHCPL-4504Option060 –VIORM=891VpeakforHCPL-J454 –VIORM=1414VpeakforHCNW4504
Applications•InvertercircuitsandIntelligentPowerModule(IPM)
interfacing:HighCommonModeTransientimmunity(>10kV/µsforanIPMload/drive)and(tPLH-tPHL)Specified(seePowerInverterDeadTimesection)
• Linereceivers:Shortpropagationdelaysandlowin-put-outputcapacitance
• Highspeedlogicgroundisolation:TTL/TTL,TTL/CMOS,TTL/LSTTL
• Replacespulsetransformers:Saveboardspaceandweight
• Analogsignalgroundisolation:Integratedphotode-tectorprovidesimprovedlinearityoverphototransis-tors
A0.1µFbypasscapacitorbetweenpins5and8isrecommended.
7
1
2
3
4 5
6
8NC
ANODE
CATHODE
NC
VCC
NC
VO
GND
TRUTH TABLELED
ONOFF
VOLOWHIGH
HCPL-4504 Functional Diagram
Description
The HCPL-4504 and HCPL-0454 contain a GaAsP LEDwhiletheHCPL-J454andHCNW4504containanAlGaAsLED.TheLEDisopticallycoupledtoanintegratedhighgainphotodetector.
TheHCPL-4504serieshasshortpropagationdelaysandhigh CTR.The HCPL-4504 series also has a guaranteedpropagation delay difference (tPLH-tPHL). These featuresmaketheHCPL-4504seriesanexcellentsolutiontoIPMinverter dead time and other switching problems.TheCTR,propagationdelay,andCMRarespecifiedbothforTTLand IPMconditionswhichareprovided foreaseofapplication.Thesesinglechannel,diode-transistoropto-couplersareavailablein8-PinDIP,SO-8,andWidebodypackage configurations. An insulating layer between aLEDandanintegratedphotodetectorprovideelectricalinsulationbetweeninputandoutput.Separateconnec-tionsforthephotodiodebiasandoutput-transistorcol-lectorincreasethespeeduptoahundredtimesthatofaconventionalphototransistorcouplerbyreducingthebasecollectorcapacitance.
Functional Diagram
HCPL-4504/J454/0454, HCNW4504High CMR, High Speed Optocouplers
Data Sheet
CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to prevent damage and/or degradation which may be induced by ESD.
Lead (Pb) FreeRoHS 6 fullycompliant
RoHS 6 fully compliant options available;-xxxE denotes a lead-free product
Schematic
HCPL-4504 Schematic
IF
SHIELD
8
6
5GND
VCC
2
3
VO
ICC
VF IO
ANODE
CATHODE
+
–
2
Ordering InformationHCPL-0454,HCPL-4504andHCPL-J454areULRecognizedwith3750Vrmsfor1minuteperUL1577.HCNW4504isULRecognizedwith5000Vrmsfor1minuteperUL1577.HCPL-0454,HCPL-4504,HCPL-J454andHCNW4504areapprovedunderCSAComponentAcceptanceNotice#5,FileCA88324.
PartNumber
Option
PackageSurfaceMount
GullWing
Tape& Reel
UL 15775000 Vrms/
1 Minuterating
IEC/EN/DINEN 60747-5-2 Quantity
RoHSCompliant
non RoHSCompliant
HCPL-4504
-000E nooption
300milDIP-8
50pertube
-300E #300 X X 50pertube
-500E #500 X X X 1000perreel
-020E #020 X 50pertube
-320E #320 X X X 50pertube
-520E #520 X X X X 1000perreel
-060E #060 X 50pertube
-360E #360 X X X 50pertube
-560E #560 X X X X 1000perreel
HCPL-J454
-000E nooption
300milDIP-8
X 50pertube
-300E #300 X X X 50pertube
-400E NA X X X 50pertube
-500E #500 X X X X 1000perreel
-600E NA X X X X 750perreel
HCPL-0454
-000E nooption
SO-8
X 100pertube
-500E #500 X X 1500perreel
-060E #060 X X 100pertube
-560E #560 X X X 1500perreel
HCNW4504
-000E nooption 400milWidebody
DIP-8
X X 42pertube
-300E #300 X X X X 42pertube
-500E #500 X X X X X 750perreel
Toorder,chooseapartnumberfromthepartnumbercolumnandcombinewiththedesiredoptionfromtheoptioncolumntoformanorderentry.Example1:
HCPL-4504-560Etoorderproductof300milDIPGullWingSurfaceMountpackageinTapeandReelpackagingwithIEC/EN/DINEN60747-5-2SafetyApprovalandRoHScompliant.
Example2:HCPL-4504toorderproductof300milDIPpackageinTubepackagingandnonRoHScompliant.
Optiondatasheetsareavailable.ContactyourAvagosalesrepresentativeorauthorizeddistributorforinformation.Remarks:Thenotation‘#XXX’isusedforexistingproducts,while(new)productslaunchedsinceJuly15,2001andRoHScompliantwilluse‘–XXXE.’
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Package Outline DrawingsHCPL-4504 Outline Drawing
HCPL-4504 Gull Wing Surface Mount Option 300 Outline Drawing
1.080 ± 0.320(0.043 ± 0.013)
2.54 ± 0.25(0.100 ± 0.010)
0.51 (0.020) MIN.
0.65 (0.025) MAX.
4.70 (0.185) MAX.
2.92 (0.115) MIN.
5° TYP. 0.254+ 0.076- 0.051
(0.010+ 0.003)- 0.002)
7.62 ± 0.25(0.300 ± 0.010)
6.35 ± 0.25(0.250 ± 0.010)
9.65 ± 0.25(0.380 ± 0.010)
1.78 (0.070) MAX.1.19 (0.047) MAX.
A XXXXZ
YYWW
DATE CODE
DIMENSIONS IN MILLIMETERS AND (INCHES).
5678
4321
OPTION CODE*
ULRECOGNITION
UR
TYPE NUMBER
* MARKING CODE LETTER FOR OPTION NUMBERS"L" = OPTION 020"V" = OPTION 060OPTION NUMBERS 300 AND 500 NOT MARKED.
NOTE: FLOATING LEAD PROTRUSION IS 0.25 mm (10 mils) MAX.
3.56 ± 0.13(0.140 ± 0.005)
0.635 ± 0.25(0.025 ± 0.010)
12° NOM.
9.65 ± 0.25(0.380 ± 0.010)
0.635 ± 0.130(0.025 ± 0.005)
7.62 ± 0.25(0.300 ± 0.010)
5678
4321
9.65 ± 0.25(0.380 ± 0.010)
6.350 ± 0.25(0.250 ± 0.010)
1.016 (0.040)
1.27 (0.050)
10.9 (0.430)
2.0 (0.080)
LAND PATTERN RECOMMENDATION
1.080 ± 0.320(0.043 ± 0.013)
3.56 ± 0.13(0.140 ± 0.005)
1.780(0.070)MAX.1.19
(0.047)MAX.
2.54(0.100)BSC
DIMENSIONS IN MILLIMETERS (INCHES).LEAD COPLANARITY = 0.10 mm (0.004 INCHES).
NOTE: FLOATING LEAD PROTRUSION IS 0.25 mm (10 mils) MAX.
0.254+ 0.076- 0.051
(0.010+ 0.003)- 0.002)
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Package Outline DrawingsHCPL-J454 Outline Drawing
HCPL-J454 Gull Wing Surface Mount Option 300 Outline Drawing
1.080 ± 0.320(0.043 ± 0.013)
2.54 ± 0.25(0.100 ± 0.010)
0.51 (0.020) MIN.
0.65 (0.025) MAX.
4.70 (0.185) MAX.
2.92 (0.115) MIN.
5 TYP. 0.254+ 0.076- 0.051
(0.010+ 0.003)- 0.002)
7.62 ± 0.25(0.300 ± 0.010)
6.35 ± 0.25(0.250 ± 0.010)
9.80 ± 0.25(0.386 ± 0.010)
1.78 (0.070) MAX.1.19 (0.047) MAX.
A XXXX
YYWW
DATE CODE
DIMENSIONS IN MILLIMETERS AND (INCHES).
5678
4321ULRECOGNITION
UR
TYPE NUMBER
OPTION NUMBERS 300 AND 500 NOT MARKED.
NOTE: FLOATING LEAD PROTRUSION IS 0.5 mm (20 mils) MAX.
3.56 ± 0.13(0.140 ± 0.005)
0.635 ± 0.25(0.025 ± 0.010)
12° NOM.
9.65 ± 0.25(0.380 ± 0.010)
0.635 ± 0.130(0.025 ± 0.005)
7.62 ± 0.25(0.300 ± 0.010)
5678
4321
9.80 ± 0.25(0.386 ± 0.010)
6.350 ± 0.25(0.250 ± 0.010)
1.016 (0.040)
1.27 (0.050)
10.9 (0.430)
2.0 (0.080)
LAND PATTERN RECOMMENDATION
1.080 ± 0.320(0.043 ± 0.013)
1.780(0.070)MAX.1.19
(0.047)MAX.
2.54(0.100)BSC
DIMENSIONS IN MILLIMETERS (INCHES).LEAD COPLANARITY = 0.10 mm (0.004 INCHES).
0.254+ 0.076- 0.051
(0.010+ 0.003)- 0.002)
NOTE: FLOATING LEAD PROTRUSION IS 0.5 mm (20 mils) MAX.
3.56 ± 0.13(0.140 ± 0.005)
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HCPL-J454-400E/600E Widelead Gullwing Surface Mount Outline Drawing
HCPL-0454 Outline Drawing (8-Pin Small Outline Package)
XXXYWW
8 7 6 5
4321
5.994 ± 0.203(0.236 ± 0.008)
3.937 ± 0.127(0.155 ± 0.005)
0.406 ± 0.076(0.016 ± 0.003) 1.270
(0.050)BSC
5.080 ± 0.127(0.200 ± 0.005)
3.175 ± 0.127(0.125 ± 0.005) 1.524
(0.060)
45 X 0.432(0.017)
0.228 ± 0.025(0.009 ± 0.001)
TYPE NUMBER(LAST 3 DIGITS)DATE CODE
0.305(0.012)
MIN.TOTAL PACKAGE LENGTH (INCLUSIVE OF MOLD FLASH)5.207 ± 0.254 (0.205 ± 0.010)
DIMENSIONS IN MILLIMETERS (INCHES).LEAD COPLANARITY = 0.10 mm (0.004 INCHES) MAX.
NOTE: FLOATING LEAD PROTRUSION IS 0.15 mm (6 mils) MAX.
0.203 ± 0.102(0.008 ± 0.004)
7
PIN ONE
0 ~ 7
*
*
7.49 (0.295)
1.9 (0.075)
0.64 (0.025)
LAND PATTERN RECOMMENDATION
[0.65] 0.025 MAX
0.250 ±0.0106.35 ±0.25
0.386 ±0.0109.80 ±0.25
MAX.
[1.19]0.047
0.140 ±0.0053.56 ±0.13
0.100BSC
2.54
0.043 0.013[1.080] 0.320
DIMENSIONS IN [MILLIMETERS] INCHES
OPTION NUMBERS 400 AND 600 NOT MARKED.
NOTE: FLOATING LEAD PROTRUSION IS 0.5 mm (20 mils) MAX.
LEAD COPLANARITYMAXIMUM: [0.102] 0.004
LAND PATTERN RECOMMENDATION
0.460 0.010[11.75 0.25]
[0.406] 0.016[0.152] 0.006
0.025 ±0.0100.625 ±0.254
0.300±0.0207.62 ±0.51
[0.33] 0.013[0.20] 0.008
30° NOM.
0.0401.016
0.50812.9
0.082.0
0.0501.27
A XXXX
YYWW
DATE CODE
UR
TYPE NUMBER
ULRECOGNITION
6
HCNW4504 Outline Drawing (8-Pin Widebody Package)
5678
4321
11.15 ± 0.15(0.442 ± 0.006)
1.78 ± 0.15(0.070 ± 0.006)
5.10(0.201)
MAX.
1.55(0.061)MAX.
2.54 (0.100)TYP.
DIMENSIONS IN MILLIMETERS (INCHES).
NOTE: FLOATING LEAD PROTRUSION IS 0.25 mm (10 mils) MAX.
7° TYP.0.254
+ 0.076- 0.0051
(0.010+ 0.003)- 0.002)
11.00(0.433)
9.00 ± 0.15(0.354 ± 0.006)
MAX.
10.16 (0.400)TYP.
A HCNWXXXX
YYWW
DATE CODE
TYPE NUMBER
0.51 (0.021) MIN.
0.40 (0.016)0.56 (0.022)
3.10 (0.122)3.90 (0.154)
HCNW4504 Gull Wing Surface Mount Option 300 Outline Drawing
1.00 ± 0.15(0.039 ± 0.006)
7° NOM.
12.30 ± 0.30(0.484 ± 0.012)
0.75 ± 0.25(0.030 ± 0.010)
11.00(0.433)
5678
4321
11.15 ± 0.15(0.442 ± 0.006)
9.00 ± 0.15(0.354 ± 0.006)
1.3(0.051)
13.56(0.534)
2.29(0.09)
LAND PATTERN RECOMMENDATION
1.78 ± 0.15(0.070 ± 0.006)
4.00(0.158)
MAX.
1.55(0.061)MAX.
2.54(0.100)BSC
DIMENSIONS IN MILLIMETERS (INCHES).
LEAD COPLANARITY = 0.10 mm (0.004 INCHES).
NOTE: FLOATING LEAD PROTRUSION IS 0.25 mm (10 mils) MAX.
0.254+ 0.076- 0.0051
(0.010+ 0.003)- 0.002)
MAX.
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Solder Reflow Temperature Profile
Recommended Pb-Free IR Profile
0
TIME (SECONDS)
TEM
PERA
TURE
(°C)
200
100
50 150100 200 250
300
0
30SEC.
50 SEC.
30SEC.
160 °C
140 °C150 °C
PEAKTEMP.245 °C
PEAKTEMP.240 °C
PEAKTEMP.230 °C
SOLDERINGTIME
200 °C
PREHEATING TIME150 °C, 90 + 30 SEC.
2.5 C ± 0.5 °C/SEC.
3 °C + 1 °C/–0.5 °C
TIGHTTYPICALLOOSE
ROOMTEMPERATURE
PREHEATING RATE 3 °C + 1 °C/–0.5 °C/SEC.REFLOW HEATING RATE 2.5 °C ± 0.5 °C/SEC.
NOTE: NON-HALIDE FLUX SHOULD BE USED.
217 °C
RAMP-DOWN6 °C/SEC. MAX.
RAMP-UP3 °C/SEC. MAX.
150 - 200 °C
* 260 +0/-5 °C
t 25 °C to PEAK
60 to 150 SEC.
15 SEC.
TIME WITHIN 5 °C of ACTUALPEAK TEMPERATURE
tp
tsPREHEAT
60 to 180 SEC.
tL
TL
Tsmax
Tsmin
25
Tp
TIME
TEM
PERA
TURE
NOTES:THE TIME FROM 25 °C to PEAK TEMPERATURE = 8 MINUTES MAX.Tsmax = 200 °C, Tsmin = 150 °C
NOTE: NON-HALIDE FLUX SHOULD BE USED.
* RECOMMENDED PEAK TEMPERATURE FOR WIDEBODY 400mils PACKAGE IS 245 °C
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AllAvagodatasheetsreportthecreepageandclearanceinherenttotheoptocouplercomponentitself.Thesedi-mensionsareneededasastartingpointfortheequip-mentdesignerwhendeterminingthecircuit insulationrequirements.
However,oncemountedonaprintedcircuitboard,mini-mum creepage and clearance requirements must bemetasspecifiedforindividualequipmentstandards.For
Insulation and Safety Related Specifications
Parameter Symbol
Value
Units ConditionsHCPL-4504
HCPL-J454
-400E/-600E
HCPL-J454All other options
HCPL-0454
HCNW4504
MinimumExternalAirGap(ExternalClearance)
L(101) 7.1 8.0 7.4 4.9 9.6 mm Measuredfrominputter-minalstooutputterminals,shortestdistancethroughair.
MinimumExternalTracking(ExternalCreepage)
L(102) 7.4 8.0 8.0 4.8 10.0 mm Measuredfrominputter-minalstooutputterminals,shortestdistancepathalongbody.
MinimumInternalPlasticGap(InternalClearance)
0.08 0.5 0.5 0.08 1.0 mm Throughinsulationdistance,conductortoconductor,usuallythedirectdistancebetweenthephotoemitterandphotodetectorinsidetheoptocouplercavity.
MinimumInternalTracking(InternalCreepage)
NA NA NA NA 4.0 mm Measuredfrominputter-minalstooutputterminals,alonginternalcavity.
TrackingResistance(ComparativeTrackingIndex)
CTI ≥175 ≥175 ≥175 ≥175 ≥200 Volts DINIEC112/VDE0303Part1
IsolationGroup IIIa IIIa IIIa IIIa IIIa MaterialGroup(DINVDE0110,1/89,Table1)
creepage, the shortest distance path along the surfaceof a printed circuit board between the solder fillets ofthe input and output leads must be considered.Therearerecommendedtechniquessuchasgroovesandribswhichmaybeusedonaprintedcircuitboardtoachievedesired creepage and clearances. Creepage and clear-ance distances will also change depending on factorssuchaspollutiondegreeandinsulationlevel.
Regulatory Information
Thedevicescontainedinthisdatasheethavebeenapprovedbythefollowingagencies:
Agency/Standard HCPL-4504 HCPL-J454 HCPL-0454 HCNW4504
Underwriters Laboratories (UL)RecognizedunderUL1577,ComponentRecognitionProgram,CategoryFPQU2,FileE55361
UL1577 3750Vrms/1minute,Option0205000Vrms/1minute
3750Vrms/1minute
3750Vrms/1minute
5000Vrms/1minute
Canadian Standards Association (CSA)FileCA88324
ComponentAcceptanceNotice#5
3750Vrms/1minute,Option0205000Vrms/1minute
3750Vrms/1minute
3750Vrms/1minute
5000Vrms/1minute
IEC/EN/DIN EN 60747-5-2Approvedunder:IEC60747-5-2:1997+A1:2002EN60747-5-2:2001+A1:2002DINEN60747-5-2(VDE0884Teil2):2003-01
Option060VIORM=630Vpeak
VIORM=891Vpeak
Option060VIORM=560Vpeak
VIORM=1414Vpeak
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IEC/EN/DIN EN 60747-5-2 Insulation Related Characteristics
Description Symbol
HCPL-0454 HCPL-4504
HCPL-J454 HCNW4504 UnitOPTION 060 OPTION 060
InstallationclassificationperDINVDE0110/1.89,Table1 forratedmainsvoltage≤150Vrms forratedmainsvoltage≤300Vrms forratedmainsvoltage≤450Vrms forratedmainsvoltage≤600Vrms forratedmainsvoltage≤1000Vrms
I-IVI-III
I-IVI-IVI-III
I-IVI-IVI-IIII-III
I-IVI-IVI-IVI-IVI-III
ClimaticClassification 55/100/21 55/100/21 55/100/21 55/85/21
PollutionDegree(DINVDE0110/1.89) 2 2 2 2
MaximumWorkingInsulationVoltage VIORM 560 630 891 1414 Vpeak
InputtoOutputTestVoltage,Methodb* VIORMx1.875=VPR,100%Production Testwithtm=1sec, PartialDischarge<5pC
VPR 1050 1181 1670 2652 Vpeak
InputtoOutputTestVoltage,Methoda* VIORMx1.5=VPR,TypeandSample Test,tm=60sec, PartialDischarge<5pC
VPR 840 945 1336 2121 Vpeak
HighestAllowableOvervoltage*(TransientOvervoltage,tini=10sec)SafetyLimitingValues-MaximumValuesAllowedintheEventofaFailure,alsoseeThermalDeratingcurve
VIOTM 4000 6000 6000 8000 Vpeak
CaseTemperature TS 150 175 175 150 °C
InputCurrent IS,INPUT 150 230 400 400 mA
OutputPower PS,OUTPUT 600 600 600 700 mW
InsulationResistanceatTS, VIO=500V
RS ≥109 ≥109 ≥109 ≥109 Ω
*RefertotheoptocouplersectionoftheDesigner'sCatalog,underregulatoryinformation(IEC/EN/DINEN60747-5-2)foradetaileddescriptionofMethodaandMethodbpartialdischargetestprofiles.
NOTE:Theseoptocouplersaresuitablefor"safeelectricalisolation"onlywithinthesafetylimitdata.Maintenanceofthesafetydatashallbeensuredbymeansofprotectivecircuits.
NOTE:InsulationCharacteristicsareperIEC/EN/DINEN60747-5-2.NOTE:SurfacemountclassificationisClassAinaccordancewithCECC00802.
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Absolute Maximum Ratings
Parameter Symbol Device Min. Max. Units NoteStorageTemperature TS -55 125 °C
OperatingTemperature TA HCPL-4504HCPL-0454HCPL-J454
-55 100 °C
HCNW4504 -55 85
AverageForwardInputCurrent IF(AVG) 25 mA 1
PeakForwardInputCurrent (50%dutycycle,1mspulsewidth)
IF(PEAK) HCPL-4504HCPL-0454
50 mA 2
HCPL-J454HCNW4504
40
PeakTransientInputCurrent (≤1µspulsewidth,300pps)
IF(TRANS) HCPL-4504HCPL-0454
1 A
HCPL-J454HCNW4504
0.1
ReverseLEDInputVoltage(Pin3-2)
VR HCPL-4504HCPL-0454
5 V
HCPL-J454HCNW4504
3
InputPowerDissipation
PIN HCPL-4504HCPL-0454
45 mW 3
HCPL-J454HCNW4504
40
AverageOutputCurrent(Pin6) IO(AVG) 8 mA
PeakOutputCurrent IO(PEAK) 16 mA
SupplyVoltage(Pin8-5) VCC -0.5 30 V
OutputVoltage(Pin6-5) VO -0.5 20 V
OutputPowerDissipation PO 100 mW 4
LeadSolderTemperature(Through-HolePartsOnly) 1.6mmbelowseatingplane,10seconds
TLS HCPL-4504HCPL-J454
260 °C
Uptoseatingplane,10seconds HCNW4504 260
ReflowTemperatureProfile TRP HCPL-0454,Option300,Option500,Option400E&Option600E.
SeePackage Outline Drawingssection
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Electrical Specifications (DC)Overrecommendedtemperature(TA=0°Cto70°C)unlessotherwisespecified.Seenote12.
Parameter Symbol Device Min. Typ.* Max. Units Test Conditions Fig. NoteCurrentTransferRatio
CTR HCPL-4504HCPL-0454
25 32 60 % TA=25°C VO=0.4V IF=16mA,VCC=4.5V
1,2,4
5
21 34 VO=0.5V
HCPL-J454 19 37 60 TA=25°C VO=0.4V
13 39 VO=0.5V
HCNW4504 23 29 60 TA=25°C VO=0.4V
19 31 63 VO=0.5V
CurrentTransferRatio
CTR HCPL-4504HCPL-0454
26 35 65 % TA=25°C VO=0.4V IF=12mA,VCC=4.5V
1,2,4
5
22 37 VO=0.5V
HCPL-J454 21 43 65 TA=25°C VO=0.4V
16 45 VO=0.5V
HCNW4504 25 33 65 TA=25°C VO=0.4V
21 35 68 VO=0.5V
LogicLowOutputVoltage
VOL HCPL-4504HCPL-0454
0.2 0.4 V TA=25°C IO=4.0mA IF=16mA,VCC=4.5V0.5 IO=3.3mA
HCPL-J454 0.2 0.4 TA=25°C IO=3.6mA
0.5 IO=3.0mA
HCNW4504 0.2 0.4 TA=25°C IO=3.6mA
0.5 IO=3.0mA
LogicHighOutputCurrent
IOH 0.003 0.5 µA TA=25°C VO=VCC=5.5V IF=0mA 5
0.01 1 TA=25°C VO=VCC=15V
50
LogicLowSupplyCurrent
ICCL HCPL-4504HCPL-0454HCNW4504
50 200 µA IF=16mA,VO=Open,VCC=15V 12
HCPL-J454 70
LogicHighSupplyCurrent
ICCH 0.02 1 µA TA=25°C IF=0mA,VO=Open, 12
2 VCC=15V
InputForwardVoltage
VF HCPL-4504HCPL-0454
1.5 1.7 V TA=25°C IF=16mA 3
1.8
HCPL-J454HCNW4504
1.45 1.59 1.85 TA=25°C IF=16mA
1.35 1.95
InputReverseBreakdownVoltage
BVR HCPL-4504HCPL-0454
5 V IR=10µA
HCPL-J454HCNW4504
3 IR=100µA
TemperatureCoefficientofForwardVoltage
∆VF
∆TA
HCPL-4504HCPL-0454
-1.6 mV/°C IF=16mA
HCPL-J454HCNW4504
-1.4
InputCapacitance
CIN HCPL-4504HCPL-0454
60 pF f=1MHz,VF=0V
HCPL-J454HCNW4504
70
*AlltypicalsatTA=25°C.
12
AC Switching SpecificationsOverrecommendedtemperature(TA=0°Cto70°C)unlessotherwisespecified.
Parameter Symbol Device Min. Typ. Max. Units Test Conditions Fig. Note
PropagationDelayTimetoLogicLowatOutput
tPHL 0.2 0.3 µs TA=25°C Pulse:f=20kHz,DutyCycle=10%,IF=16mA,VCC=5.0V,RL=1.9kΩ,CL=15pF,VTHHL=1.5V
6,8,9
9
0.2 0.5
tPHL 0.2 0.5 0.7 µs TA=25°C Pulse:f=10kHz,DutyCycle=50%,IF=12mA,VCC=15.0V,RL=20kΩ,CL=100pF,VTHHL=1.5V
6,10-14
10
HCPL-J454
0.05 1.0
Others 0.1
PropagationDelayTimetoLogicHighatOutput
tPLH 0.3 0.5 µs TA=25°C Pulse:f=20kHz,DutyCycle=10%,IF=16mA,VCC=5.0V,RL=1.9kΩ,CL=15pF,VTHLH=1.5V
6,8,9
9
0.3 0.7
tPLH 0.3 0.8 1.1 µs TA=25°C Pulse:f=10kHz,DutyCycle=50%,IF=12mA,VCC=15.0V,RL=20kΩ,CL=100pF,VTHLH=2.0V
6,10-14
10
0.2 0.8 1.4
PropagationDelayDifferenceBe-tweenAny2Parts
tPLH-tPHL
-0.4 0.3 0.9 µs TA=25°C Pulse:f=10kHz,DutyCycle=50%,IF=12mA,VCC=15.0V,RL=20kΩ,CL=100pF,VTHHL=1.5V,VTHLH=2.0V
6,10-14
17
-0.7 0.3 1.3
CommonModeTransientImmu-nityatLogicHigh
|CMH| 15 30 kV/µs TA=25°CVCM=1500VP-P
VCC=5.0V,RL=1.9kΩ,CL=15pF,IF=0mA
7 7,9
|CMH|
15 30 kV/µs VCC=15.0V,RL=20kΩ,CL=100pF,IF=0mA
7 8,10
LevelOutputCommonModeTransientImmu-nityatLogicLowLevelOutput
|CML| 15 30 kV/µs TA=25°CVCM=1500VP-P
VCC=5.0V,RL=1.9kΩ,CL=15pF,IF=16mA
7 7,9
|CML| HCPL-J454
15 30 kV/µs VCC=15.0V,RL=20kΩ,CL=100pF,IF=12mA
7 8,10
Others 10
|CML| 15 30 kV/µs VCC=15.0V,RL=20kΩ,CL=100pF,IF=16mA
7 8,10
*AlltypicalsatTA=25°C.
13
Package CharacteristicsOverrecommendedtemperature(TA=0°Cto25°C)unlessotherwisespecified.
Parameter Symbol Device Min. Typ.* Max. Units Test Conditions Figure Note
Input-OutputMomentaryWithstandVoltage†
VISO HCPL-4504HCPL-0454
3750 Vrms RH≤50%,t=1min.,TA=25°C
6,13,16
HCPL-J454 3750 6,14,16
HCPL-4504Option020
5000 6,11,15
HCNW4504 5000 6,15,16
Input-OutputResistance
RI-O HCPL-4504HCPL-0454HCPL-J454
1012 Ω VI-O=500Vdc 6
HCNW4504 1012 1013 TA=25°C
1011 TA=100°C
Capacitance(Input-Output)
CI-O HCPL-4504HCPL-0454
0.6 pF f=1MHz 6
HCPL-J454 0.8
HCNW4504 0.5 0.6
AlltypicalsatTA=25°C..†TheInput-OutputMomentaryWithstandVoltageisadielectricvoltageratingthatshouldnotbeinterpretedasaninput-outputcontinuousvoltagerating.ForthecontinuousvoltageratingrefertotheIEC/EN/DINEN60747-5-2InsulationRelatedCharacteristicsTable(ifapplicable),yourequipmentlevelsafetyspecificationorAvagoApplicationNote1074entitled“OptocouplerInput-OutputEnduranceVoltage.”
Notes:1. Deratelinearlyabove70°Cfree-airtemperatureatarateof0.8mA/°C(8-PinDIP).
Deratelinearlyabove85°Cfree-airtemperatureatarateof0.5mA/°C(SO-8).2. Deratelinearlyabove70°Cfree-airtemperatureatarateof1.6mA/°C(8-PinDIP).
Deratelinearlyabove85°Cfree-airtemperatureatarateof1.0mA/°C(SO-8).3. Deratelinearlyabove70°Cfree-airtemperatureatarateof0.9mW/°C(8-PinDIP).
Deratelinearlyabove85°Cfree-airtemperatureatarateof1.1mW/°C(SO-8).4. Deratelinearlyabove70°Cfree-airtemperatureatarateof2.0mW/°C(8-PinDIP).
Deratelinearlyabove85°Cfree-airtemperatureatarateof2.3mW/°C(SO-8).5. CURRENTTRANSFERRATIOinpercentisdefinedastheratioofoutputcollectorcurrent,IO,totheforwardLEDinputcurrent,IF,times100.6. Deviceconsideredatwo-terminaldevice:Pins1,2,3,and4shortedtogetherandPins5,6,7,and8shortedtogether.7. UnderTTLloadanddriveconditions:CommonmodetransientimmunityinaLogicHighlevelisthemaximumtolerable(positive)dVCM/dton
theleadingedgeofthecommonmodepulse,VCM,toassurethattheoutputwillremaininaLogicHighstate(i.e.,VO>2.0V).CommonmodetransientimmunityinaLogicLowlevelisthemaximumtolerable(negative)dVCM/dtonthetrailingedgeofthecommonmodepulsesignal,VCM,toassurethattheoutputwillremaininaLogicLowstate(i.e.,VO<0.8V).
8. UnderIPM(IntelligentPowerModule)loadandLEDdriveconditions:CommonmodetransientimmunityinaLogicHighlevelisthemaximumtolerabledVCM/dtontheleadingedgeofthecommonmodepulse,VCM,toassurethattheoutputwillremaininaLogicHighstate(i.e.,VO>3.0V).CommonmodetransientimmunityinaLogicLowlevelisthemaximumtolerabledVCM/dtonthetrailingedgeofthecommonmodepulsesignal,VCM,toassurethattheoutputwillremaininaLogicLowstate(i.e.,VO<1.0V).
9. The1.9kΩloadrepresents1TTLunitloadof1.6mAandthe5.6kΩpull-upresistor.10.TheRL=20kΩ,CL=100pFloadrepresentsanIPM(IntelligentPowerModule)load.11.SeeOption020datasheetformoreinformation.12.Useofa0.1µFbypasscapacitorconnectedbetweenPins5and8isrecommended.13.InaccordancewithUL1577,eachoptocouplerisprooftestedbyapplyinganinsulationtestvoltage≥4500Vrmsfor1second(leakagedetection
currentlimit,Ii-o≤5µA).14.InaccordancewithUL1577,eachoptocouplerisprooftestedbyapplyinganinsulationtestvoltage≥4500Vrmsfor1second(leakagedetection
currentlimit,Ii-o≤5µA).15.InaccordancewithUL1577,eachoptocouplerisprooftestedbyapplyinganinsulationtestvoltage≥6000Vrmsfor1second(leakagedetection
currentlimit,Ii-o≤5µA).16.Thistestisperformedbeforethe100%ProductiontestshownintheVDE0884InsulationRelatedCharacteristicsTable,ifapplicable.17.ThedifferencebetweentPLHandtPHLbetweenanytwodevices(samepartnumber)underthesametestcondition.(SeePowerInverterDead
TimeandPropagationDelaySpecificationssection.)
14
Figure 1. DC and pulsed transfer characteristics.
Figure 2. Current transfer ratio vs. input current.
Figure 3. Input current vs. forward voltage.
0 10 20
VO – OUTPUT VOLTAGE – V
I O –
OU
TP
UT
CU
RR
EN
T –
mA
10
5
0
T = 25°CV = 5.0 VACC
40 mA
35 mA
30 mA
25 mA
20 mA
15 mA
10 mA
I = 5 mAF
HCPL-4504/0454
I O –
OU
TP
UT
CU
RR
EN
T –
mA
00
VO – OUTPUT VOLTAGE – V
20
HCPL-4504 fig 1b
15
25
5
5 10
20
15
10
TA = 25° CVCC = 5.0 V 40 mA
30 mA
35 mA
25 mA
15 mA
20 mA
10 mA
IF = 5 mA
HCPL-J454
HCPL-4504 fig 1c
0 10 20
VO – OUTPUT VOLTAGE – V
I O –
OU
TP
UT
CU
RR
EN
T –
mA
20
10
0
T = 25°CV = 5.0 VACC
40 mA35 mA
30 mA25 mA
20 mA
15 mA
10 mA
I = 5 mAF
HCNW4504
2
4
6
8
12
14
16
18
IF – INPUT CURRENT – mA
NO
RM
AL
IZE
D C
UR
RE
NT
TR
AN
SF
ER
RA
TIO
1.5
1.0
0.5
0.02 4 6 8 10 12 14 16 180
HCPL-4504 fig 2a
20 22 24 26
IF = 16 mAVO = 0.4 VVCC = 5.0 VTA = 25°C
NORMALIZED
HCPL-4504/0454
NO
RM
AL
IZE
D C
UR
RE
NT
TR
AN
SF
ER
RA
TIO
00
IF – INPUT CURRENT – mA
20
HCPL-4504 fig 2b
15
2.0
0.5
5 10
1.5
1.0
25
NORMALIZEDIF = 16 mAVO = 0.4 VVCC = 5.0 VTA = 25° C
HCPL-J454
IF – INPUT CURRENT – mA
NO
RM
AL
IZE
D C
UR
RE
NT
TR
AN
SF
ER
RA
TIO
1.6
0.8
05 10 150
HCPL-4504 fig 2c
20 25
IF = 16 mAVO = 0.4 VVCC = 5.0 VTA = 25°C
NORMALIZED
HCNW4504
0.4
1.2
2.0
VF – FORWARD VOLTAGE – VOLTS
100
10
0.1
0.01
1.1 1.2 1.3 1.4
I F –
FO
RW
AR
D C
UR
RE
NT
– m
A
1.61.5
1.0
0.001
1000
IF
VF
+T = 25°CA
–
HCPL-4504/0454
VF – FORWARD VOLTAGE – VOLTS
100
10
0.1
0.01
1.2 1.3 1.4 1.5
I F –
FO
RW
AR
D C
UR
RE
NT
– m
A
1.71.6
1.0
0.001
1000
IF
VF
+
T = 25°CA
–
HCPL-J454/HCNW4504
15
Figure 6. Switching test circuit.
Figure 4. Current transfer ratio vs. temperature.
Figure 5. Logic high output current vs. temperature.
Figure 7. Test circuit for transient immunity and typical waveforms.
TA – TEMPERATURE – °C
NO
RM
AL
IZE
D C
UR
RE
NT
TR
AN
SF
ER
RA
TIO
1.0
0.8
0.6
HCPL-4504 fig 4a
1.1
0.7
0.9
-40 -20 0 20 40 60 80 100 120-60
IF = 16 mAVO = 0.4 VVCC = 5.0 VTA = 25°C
NORMALIZED
HCPL-4504/0454
NO
RM
AL
IZE
D C
UR
RE
NT
TR
AN
SF
ER
RA
TIO
-600.85
TA – TEMPERATURE – °C
100
HCPL-4504 fig 4b
60
1.05
0.9
-20 20
1.0
0.95
NORMALIZEDIF = 16 mAVO = 0.4 VVCC = 5.0 VTA = 25° C
80400-40
HCPL-J454
TA – TEMPERATURE – °C
NO
RM
AL
IZE
D C
UR
RE
NT
TR
AN
SF
ER
RA
TIO
1.0
0.9
0.85
HCPL-4504 fig 4c
1.05
0.95
-40 -20 0 20 40 60 80 100 120-60
IF = 16 mAVO = 0.4 VVCC = 5.0 VTA = 25°C
NORMALIZED
HCNW4504
TA – TEMPERATURE – °C
I OH
– L
OG
IC H
IGH
OU
TP
UT
CU
RR
EN
T –
nA
HCPL-4504 fig 5
104
103
102
101
100
10-1
10-2
-40 -20 0 20 40 60 80 100 120-60
IF = 0 mAVO = VCC = 5.0 V
VO
PULSEGEN.
Z = 50 Ωt = 5 nsOr
I MONITORF
IF
0.1µF
LR
C LRM
0
tPHL tPLH
OV
IF
OLVTHHLV THLHV
VCC
VCC1
2
3
4
8
7
6
5
VO
IF
0.1µF
LRA
B
PULSE GEN.
VCM+
VFF LC
OV
OLVOV
0 V 10%90% 90%
10%
SWITCH AT A: I = 0 mAF
SWITCH AT B: I = 12 mA, 16 mAF
CMV
tr tf
CCV
VCC
–
1
2
3
4
8
7
6
5
16
Figure 11. Propagation delay time vs. temperature.
Figure 8. Propagation delay time vs. temperature.
Figure 10. Propagation delay time vs. load resistance.
Figure 9. Propagation delay time vs. load resis-tance.
TA – TEMPERATURE – °C
tp –
PR
OP
AG
AT
ION
DE
LA
Y –
µs
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10-40 -20 0 20 40 60 80 100 120-60
HCPL-4504 fig 8a
VCC = 5.0 VRL = 1.9 kΩCL = 15 pFVTHHL tPLH
tPHL
IF = 10 mAIF = 16 mA
= VTHLH = 1.5 V10% DUTY CYCLE
HCPL-4504/0454
TA – TEMPERATURE – °C
tp –
PR
OP
AG
AT
ION
DE
LA
Y –
µs
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10-40 -20 0 20 40 60 80 100 120-60
HCPL-4504 fig 8b
VCC = 5.0 VRL = 1.9 kΩCL = 15 pFVTHHL tPLH
tPHL
IF = 10 mAIF = 16 mA
= VTHLH = 1.5 V10% DUTY CYCLE
HCPL-J454/HCNW4504
RL – LOAD RESISTANCE – kΩ
tp –
PR
OP
AG
AT
ION
DE
LA
Y –
µs
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.02 4 6 8 10 12 14 16 180
HCPL-4504 fig 9
20
tPHL
VCC = 5.0 VTA = 25° CCL = 15 pFV = V = 1.5 V
IF = 10 mAIF = 16 mA
tPLH10% DUTY CYCLE
THHL THLH
RL– LOAD RESISTANCE – kΩ
tp –
PR
OP
AG
AT
ION
DE
LA
Y –
µs
1.41.21.00.80.60.40.20.0
2 4 6 8 10 12 14 16 180
HCPL-4504 fig 10
20
1.61.82.02.2
2.42.6
VCC = 5.0 VTA = 25° CCL = 100 pFVTHHL = 1.5 VVTHLH = 2.0 V
IF = 10 mAIF = 16 mA
tPLH
tPHL
50% DUTY CYCLE
TA – TEMPERATURE – °C
tp –
PR
OP
AG
AT
ION
DE
LA
Y –
µs
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3-40 -20 0 20 40 60 80 100 120-60
HCPL-4504 fig 11a
VCC = 15.0 VRL = 20 kΩCL = 100 pFVTHHL = 1.5 V VTHLH = 2.0 V
tPLH
tPHL
IF = 10 mAIF = 16 mA
50% DUTY CYCLE
HCPL-4504/0454
TA – TEMPERATURE – °C
tp –
PR
OP
AG
AT
ION
DE
LA
Y –
µs
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3-40 -20 0 20 40 60 80 100 120-60
HCPL-4504 fig 11b
VCC = 15.0 VRL = 20 kΩCL = 100 pFVTHHL = 1.5 V VTHLH = 2.0 V tPLH
tPHL
IF = 10 mAIF = 16 mA
50% DUTY CYCLE
HCPL-J454/HCNW4504
Figure 14. Propagation delay time vs. supply voltage.
Figure 13. Propagation delay time vs. load capacitance.
Figure 12. Propagation delay time vs. load resistance.
RL – LOAD RESISTANCE – kΩ
tp –
PR
OP
AG
AT
ION
DE
LA
Y –
µs 1.6
1.4
1.2
1.0
0.6
0.2
0.05 10 15 20 25 30 35 40 450
HCPL-4504 fig 12
VCC = 15.0 VTA = 25° CCL = 100 pFVTHHL = 1.5 VVTHLH = 2.0 V
50
tPLH
tPHL
1.8
0.4
0.8
IF = 10 mAIF = 16 mA
50% DUTY CYCLE
CL – LOAD CAPACITANCE – pF
tp –
PR
OP
AG
AT
ION
DE
LA
Y –
µs
2.0
1.5
0.5
0.0100 200 300 400 500 600 700 800 9000
HCPL-4504 fig 13
VCC = 15.0 VTA = 25° CRL = 20 kΩVTHHL = 1.5 VVTHLH = 2.0 V
1000
tPLH
tPHL
2.5
3.0
3.5
1.0
IF = 10 mAIF = 16 mA
50% DUTY CYCLE
VCC – SUPPLY VOLTAGE – V
tp –
PR
OP
AG
AT
ION
DE
LA
Y –
µs
0.9
0.8
0.6
0.211 12 13 14 15 16 17 18 1910
HCPL-4504 fig 14
20
1.0
1.1
1.2
0.7
TA = 25° CRL = 20 kΩCL = 100 pFVV
0.5
0.4
0.3
tPLH
tPHL
IF = 10 mAIF = 16 mA
50% DUTY CYCLE
THHL = 1.5 V= 2.0 VTHLH
17
Figure 15. Thermal derating curve, dependence of safety limiting valve with case temperature per IEC/EN/DIN EN 60747-5-2.
HCPL-4504 fig 15a
OU
TP
UT
PO
WE
R –
PS
, IN
PU
T C
UR
RE
NT
– I S
00
TS – CASE TEMPERATURE – °C
20050
400
12525 75 100 150
600
800
200
100
300
500
700
HCPL-4504 OPTION 060/HCPL-J454
175
(230)
PS (mW)IS (mA) for HCPL-4504 OPTION 060IS (mA) for HCPL-J454
OU
TP
UT
PO
WE
R –
PS
, IN
PU
T C
UR
RE
NT
– I S
00
TS – CASE TEMPERATURE – °C
175
HCPL-4504 fig 15b
1000
50
400
12525 75 100 150
600
800
200
100
300
500
700
900
HCPL-0454 OPTION 060/HCNW4504
PS (mW) for HCNW4504IS (mA) for HCNW4504PS (mW) for HCPL-0454OPTION 060IS (mA) for HCPL-0454OPTION 060
(150)
Figure 16. Typical power inverter.
BASE/GATEDRIVE CIRCUIT
HCPL-4504/0454/J454HCNW4504
2
3
8
7
6
5
+HV
Q1
LED 1
OUT 1
BASE/GATEDRIVE CIRCUIT
2
3
8
7
6
5
–HV
Q2
LED 2
OUT 2
HCPL-4504 fig 16
+
+HCPL-4504/0454/J454HCNW4504
18
Power Inverter Dead Time and Propagation Delay Specifica-tions
The HCPL-4504/0454/J454 and HCNW4504 include aspecificationintendedtohelpdesignersminimize“deadtime”intheirpowerinverterdesigns.Thenew“propaga-tiondelaydifference”specification(tPLH-tPHL)isusefulfordetermining not only how much optocoupler switch-ingdelayisneededtoprevent“shoot-through”current,butalsofordeterminingthebestachievableworst-casedeadtimeforagivendesign.
When inverter power transistors switch (Q1 and Q2 inFigure17),itisessentialthattheyneverconductatthesametime.Extremely largecurrentswillflowifthere isany overlap in their conduction during switching tran-sitions, potentially damaging the transistors and eventhesurroundingcircuitry.This“shoot-through”currentiseliminatedbydelayingtheturn-onofonetransistor(Q2)longenoughtoensurethattheopposingtransistor(Q1)hascompletelyturnedoff.Thisdelayintroducesasmallamountof“deadtime”attheoutputoftheinverterdur-ingwhichbothtransistorsareoffduringswitchingtran-sitions.Minimizingthisdeadtimeisanimportantdesigngoalforaninverterdesigner.
The amount of turn-on delay needed depends on thepropagationdelaycharacteristicsoftheoptocoupler,aswellasthecharacteristicsofthetransistorbase/gatedrivecircuit.Consideringonlythedelaycharacteristicsoftheoptocoupler (the characteristics of the base/gate drivecircuitcanbeanalyzedinthesameway),itisimportanttoknowtheminimumandmaximumturn-on(tPHL)andturnoff (tPLH) propagation delay specifications, prefer-ablyoverthedesiredoperatingtemperaturerange.TheimportanceofthesespecificationsisillustratedinFigure17. The waveforms labeled“LED1”, “LED2”, “OUT1”, and“OUT2” are the input and output voltages of the opto-couplercircuitsdrivingQ1andQ2respectively.Mostin-vertersaredesignedsuchthatthepowertransistorturnsonwhentheoptocouplerLEDturnson;thisensuresthatbothpowertransistorswillbeoffintheeventofapowerlossinthecontrolcircuit.Inverterscanalsobedesignedsuchthatthepowertransistorturnsoffwhentheopto-coupler LED turns on; this type of design, however, re-quiresadditionalfail-safecircuitrytoturnoffthepowertransistor if an over-current condition is detected. Thetiming illustrated in Figure 17 assumes that the powertransistorturnsonwhentheoptocouplerLEDturnson.
Figure 17. LED delay and dead time diagram.
For product information and a complete list of distributors, please go to our website: www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies Limited in the United States and other countries.Data subject to change. Copyright © 2005-2008 Avago Technologies Limited. All rights reserved. Obsoletes AV01-0552ENAV02-0867EN - June 20, 2008
Thisexpressioncanberearrangedtoobtain
[(tPLHmax-tPHLmin)-(tPHLmin-tPHLmax)],
andfurtherrearrangedtoobtain
[(tPLH-tPHL)max-(tPLH-tPHL)min],
whichisthemaximumminustheminimumdatasheetvalues of (tPLH-tPHL). The difference between the maxi-mumandminimumvaluesdependsdirectlyonthetotalspreadinpropagationdelaysandsetsthelimitonhowgoodtheworst-casedeadtimecanbeforagivendesign.Therefore, optocouplers with tight propagation delayspecifications(andnotjustshorterdelaysorlowerpulse-widthdistortion)canachieveshortdeadtimesinpowerinverters. The HCPL-4504/0454/J454 and HCNW4504specifyaminimum(tPLH-tPHL)of-0.7µsoveranoperat-ingtemperaturerangeof0-70°C,resultinginamaximumdeadtimeof2.0µswhentheLEDturn-ondelayisequalto(tPLH-tPHL)max,or1.3µs.
It is importanttomaintainaccurateLEDturn-ondelaysbecause delays shorter than (tPLH-tPHL)max may allowshoot-throughcurrents,whilelongerdelayswillincreasetheworst-casedeadtime.
TheLEDsignaltoturnonQ2shouldbedelayedenoughso that an optocoupler with the very fastest turn-onpropagationdelay(tPHLmin)willneverturnonbeforeanoptocouplerwiththeveryslowestturn-offpropagationdelay(tPLHmax)turnsoff.Toensurethis,theturn-onoftheoptocoupler should be delayed by an amount no lessthan(tPLHmax-tPHLmin),whichalsohappenstobethemax-imumdatasheetvalueforthepropagationdelaydiffer-encespecification,(tPLH-tPHL).TheHCPL-4504/0454/J454andHCNW4504specifyamaximum(tPLH-tPHL)of1.3µsoveranoperatingtemperaturerangeof0-70°C.
Although(tPLH-tPHL)maxtellsthedesignerhowmuchdelayisneededtopreventshoot-throughcurrent,itisinsuffi-cienttotellthedesignerhowmuchdeadtimeadesignwillhave.Assumingthattheoptocouplerturn-ondelayisexactlyequalto(tPLH-tPHL)max,theminimumdeadtimeiszero(i.e.,thereiszerotimebetweentheturnoffofthevery slowest optocoupler and the turn-on of the veryfastestoptocoupler).
Calculating the maximum dead time is slightly morecomplicated.AssumingthattheLEDturn-ondelayisstillexactlyequalto(tPLH-tPHL)max,itcanbeseeninFigure17thatthemaximumdeadtimeisthesumofthemaximumdifferenceinturn-ondelayplusthemaximumdifferenceinturnoffdelay,
[(tPLHmax-tPLHmin)+(tPHLmax-tPHLmin)].