PMB8818TPN [ERICSSON]
DC-DC Regulated Power Supply Module, 1 Output, Hybrid, ROHS COMPLIANT PACKAGE-10;
| 型号： | PMB8818TPN |
| 厂家： | 
ERICSSON |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, Hybrid, ROHS COMPLIANT PACKAGE-10 远程控制 |
| 文件： | 总32页 (文件大小：1551K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PMBꢀ8818TꢀP
DC/DCꢀregulator
Inputꢀ8.3ꢀ-ꢀ16ꢀV
Outputꢀ16ꢀAꢀ
Contents
ProductꢀProgramꢀ. . . . . . . . . . . . . . . . . . . . . . 2
MechanicalꢀDataꢀ. . . . . . . . . . . . . . . . . . . . . . 2
Connections ꢀ. . . . . . . . . . . . . . . . . . . . . . . . . 2
AbsoluteꢀMaximumꢀRatings ꢀ. . . . . . . . . . . . . 3
Inputꢀꢀ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ProductꢀQualificationꢀSpecificationꢀ. . . . . . . . 4
SafetyꢀSpecification ꢀ. . . . . . . . . . . . . . . . . . . 5
Adjustedꢀtoꢀ1.0ꢀVoutꢀ-ꢀDataꢀ. . . . . . . . . . . . . . 6
Adjustedꢀtoꢀ1.2ꢀVoutꢀ-ꢀDataꢀ. . . . . . . . . . . . . . 9
Adjustedꢀtoꢀ1.5ꢀVoutꢀ-ꢀDataꢀ. . . . . . . . . . . . . 12
Adjustedꢀtoꢀ1.8ꢀVoutꢀ-ꢀDataꢀ. . . . . . . . . . . . . 15
Adjustedꢀtoꢀ2.5ꢀVoutꢀ-ꢀDataꢀ. . . . . . . . . . . . . 18
Adjustedꢀtoꢀ3.3ꢀVoutꢀ-ꢀDataꢀ. . . . . . . . . . . . . 21
Adjustedꢀtoꢀ5.0ꢀVoutꢀ-ꢀDataꢀ. . . . . . . . . . . . . 24
EMCꢀSpecification. . . . . . . . . . . . . . . . . . . . 27
OperatingꢀInformationꢀ. . . . . . . . . . . . . . . . . 28
ThermalꢀConsiderations ꢀ. . . . . . . . . . . . . . . 30
SolderingꢀInformationꢀ. . . . . . . . . . . . . . . . . 31
DeliveryꢀPackageꢀInformationꢀ. . . . . . . . . . . 31
CompatibilityꢀwithꢀRoHSꢀrequirementsꢀ. . . . 31
Reliabilityꢀ. . . . . . . . . . . . . . . . . . . . . . . . . . . 31
SalesꢀOfficesꢀandꢀContactꢀInformationꢀ. . . . 32
Key Features
•ꢀ Wideꢀinput,ꢀ8.3ꢀ-ꢀ16ꢀVdc
•ꢀ Programmableꢀoutput,ꢀ0.75ꢀ-ꢀ5.5ꢀVdc
•ꢀ Monotonicꢀstartꢀupꢀintoꢀpre-biasedꢀoutput
•ꢀ Underꢀvoltageꢀprotection
•ꢀ Shortꢀcircuitꢀprotection
•ꢀ Remoteꢀsense
•ꢀ RemoteꢀOn/Off
•ꢀ DesignꢀforꢀEnvironmentꢀ(DfE)
•ꢀ EuropeanꢀCommissionꢀDirectiveꢀ2002/95/ECꢀ
(RoHs)ꢀcompliant
TheꢀPMBꢀseriesꢀofꢀSILꢀDC/DCꢀregulatorsꢀ(POL)ꢀareꢀin-
tendedꢀtoꢀbeꢀusedꢀasꢀlocalꢀdistributedꢀpowerꢀsourcesꢀinꢀ
distributedꢀpowerꢀarchitecture.ꢀꢀTheꢀsingleꢀin-lineꢀdesignꢀ
makesꢀtheꢀPMBꢀseriesꢀsuitableꢀforꢀapplicationsꢀwhereꢀ
boardspaceꢀisꢀlimited.ꢀTheꢀhighꢀefficiencyꢀandꢀhighꢀreli-
abilityꢀofꢀtheꢀPMBꢀseriesꢀmakesꢀthemꢀparticularlyꢀsuitedꢀ
forꢀtheꢀcommunicationsꢀequipmentꢀofꢀtodayꢀandꢀtomor-
row.ꢀꢀ
Theseꢀproductsꢀareꢀmanufacturedꢀusingꢀtheꢀmostꢀadvancedꢀ
technologiesꢀandꢀmaterialsꢀtoꢀcomplyꢀwithꢀenvironmentalꢀ
requirements.ꢀDesignedꢀtoꢀmeetꢀhighꢀreliabilityꢀrequirementsꢀ
ofꢀsystemsꢀmanufacturers,ꢀtheꢀPMBꢀrespondsꢀtoꢀworld-classꢀ
specifications.ꢀ
ꢀ
EricssonꢀPowerꢀModulesꢀisꢀanꢀISOꢀ9001/14001ꢀcertifiedꢀ
supplier.
E
Datasheet
Product Program
VO/IOꢀmax
Outputꢀ1
VI
POꢀmax
OrderingꢀNo.
Comment
8.3ꢀ-ꢀ16ꢀV
8.3ꢀ-ꢀ16ꢀV
Option
0.75ꢀ-ꢀ5.50/16ꢀA
1.0ꢀV/16ꢀA
1.2ꢀV/16ꢀA
1.5ꢀV/16ꢀA
1.8ꢀV/16ꢀA
2.5ꢀV/16ꢀA
3.3ꢀV/16ꢀA
5ꢀV/16ꢀA
80ꢀW
PMBꢀ8818TꢀP
PMBꢀ8118NAꢀP
PMBꢀ8118LAꢀP
PMBꢀ8218HꢀP
PMBꢀ8218GꢀP
PMBꢀ8419ꢀP
PMBꢀ8510ꢀP
PMBꢀ8811ꢀP
Example
Released
16ꢀW
Onꢀrequest
Onꢀrequest
Onꢀrequest
Onꢀrequest
Onꢀrequest
Onꢀrequest
Onꢀrequest
19.2ꢀW
24ꢀW
28.8ꢀW
40ꢀW
52.8ꢀW
80ꢀW
Suffix
NegativeꢀRemoteꢀControlꢀlogicꢀꢀ
N
PMBꢀ8818TꢀPN
Mechanical Data
50,8 [2.00]
Connections
Pin
1-2
3
Designation
+ꢀOut
+ꢀS
Function
1
OutputꢀVoltage
Remoteꢀsensing
OutputꢀVoltage
Ground*
4
+ꢀOut
GND
(1,27 [0.05])
2,54 [0.100] (7x)
5
35,56 [1.400]
48,26 [1.900]
6
GND
Ground*
7-8
9
+ꢀIn
InputꢀVoltage
Outputꢀvoltageꢀadjust
Remoteꢀcontrol
Vadj
51,80 [2.039]
48,26 [1.900]
10
RC
*ꢀShouldꢀbeꢀconnectedꢀtogetherꢀthroughꢀaꢀgroundꢀplane.
1
2
3
4
5
6
7
8
9 10
Recommended footprint (customer board), no components within border.
Holes: Ø1,0 [0.04] through plated holes with Ø1,5 [0.06] pads on both sides.
8,5 [0.33] max
Weight
1
7.7gꢀ
Pins
choke
Material:ꢀCopperꢀalloyꢀ
Plating:ꢀMatteꢀtinꢀoverꢀnickel
E
7,0 [0.27]
Dimensions in mm [inch]
Tolerances (unless specified):
x,x +/-0,5 [0.02]
x,xx +/-0,25 [0.01]
ꢀ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Absolute Maximum Ratings
Characteristics
min
-45
typ
max
+115
+125
16
Unit
˚C
T
T
MaximumꢀOperatingꢀTemperature,ꢀseeꢀthermalꢀconsiderations
Storageꢀtemperature
ref
-55
˚C
S
VI
Inputꢀvoltage
-0.3
-0.3
Vdc
Vdc
Vtr
Inputꢀvoltageꢀtransient
40
Negativeꢀlogic
Remoteꢀcontrolꢀvoltage
-0.3
-0.3
16
16
Vdc
Vdc
VRC
Positiveꢀlogic
StressꢀinꢀexcessꢀofꢀAbsoluteꢀMaximumꢀRatingsꢀmayꢀcauseꢀpermanentꢀdamage.ꢀAbsoluteꢀMaximumꢀRatings,ꢀsometimesꢀreferredꢀtoꢀasꢀnoꢀdestructionꢀlimits,ꢀareꢀ
normallyꢀtestedꢀwithꢀoneꢀparameterꢀatꢀaꢀtimeꢀexceedingꢀtheꢀlimitsꢀofꢀOutputꢀdataꢀorꢀElectricalꢀCharacteristics.ꢀIfꢀexposedꢀtoꢀstressꢀaboveꢀtheseꢀlimits,ꢀfunctionꢀ
andꢀperformanceꢀmayꢀdegradeꢀinꢀanꢀunspecifiedꢀmanner.
T
ref = -30 ... +90 ˚C, VIꢀ=ꢀ8.3...16ꢀVꢀunlessꢀotherwiseꢀspecifiedꢀ
Input
Typꢀvaluesꢀspecifiedꢀat:ꢀTref = +25 ˚C, VInom,ꢀIomaxꢀ=ꢀ16ꢀA
Characteristics
Conditions
min
8.3
typ
max
Unit
V
V
Inputꢀvoltageꢀrange
Turn-offꢀinputꢀvoltage
Turn-onꢀinputꢀvoltage
Inputꢀcapacitance
12
7.8
8.0
30
16
I
Vloff
VIon
CI
I max
V
o
I max
V
o
µF
V
V
V
V
V
V
V
=ꢀ1.00ꢀV
=ꢀ1.20ꢀV
=ꢀ1.50ꢀV
=ꢀ1.80ꢀV
=ꢀ2.50ꢀV
=ꢀ3.30ꢀV
=ꢀ5.00ꢀV
485
520
580
640
805
985
1280
580
625
mW
mW
mW
mW
mW
mW
mW
oꢀ
oꢀ
oꢀ
oꢀ
oꢀ
oꢀ
oꢀ
695
Inputꢀidlingꢀpower
P
770
Ii
I
=ꢀ0ꢀA,ꢀVIꢀ=ꢀ12ꢀV
oꢀ
965
1180
1520
PRC
Inputꢀstand-byꢀpower
VIꢀ=ꢀ12ꢀV,ꢀRCꢀactivated
40
mW
V
V
V
V
V
V
V
=ꢀ1.00ꢀV
=ꢀ1.20ꢀV
=ꢀ1.50ꢀV
=ꢀ1.80ꢀV
=ꢀ2.50ꢀV
=ꢀ3.30ꢀV
=ꢀ5.00ꢀV
170
190
210
250
310
350
450
mVp-p
mVp-p
mVp-p
mVp-p
mVp-p
mVp-p
mVp-p
oꢀ
oꢀ
oꢀ
oꢀ
oꢀ
oꢀ
oꢀ
Inputꢀrippleꢀ1)ꢀ20ꢀHzꢀ...ꢀ5ꢀMHzꢀ
VIac
VIꢀ=ꢀ12ꢀV,ꢀI =ꢀ1.0ꢀxꢀI max
oꢀ
o
1)ꢀMeasuredꢀwithꢀ4ꢀxꢀ4.7ꢀµFꢀceramicꢀcapacitors
Fundamental Circuit Diagram
+OUT
+IN
+SENSE
GND
GND
Vadj
PWM
controller
Error
amplifier
Ref
RC
RC
Block
GND
GND
ꢁ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Product Qualification Specification
Characteristics
Frequencyꢀ
Accelerationꢀdensity
5ꢀ...ꢀ500ꢀHzꢀ
0.5ꢀg /Hz
RandomꢀVibration
IECꢀ60068-2-64
2
Mechanicalꢀshockꢀ
(halfꢀsinus)
Peakꢀaccelerationꢀ
Duration
50ꢀg
11ꢀms
IECꢀ60068-2-27
Leadꢀintegrity
IECꢀ60068-2-21ꢀUb
Simultaneousꢀbending
Allꢀleads
Temperatureꢀ
Numberꢀofꢀcycles
-40 ... +125 ˚C
300
Temperatureꢀcycling
JESD22-A104-B
G
Temperatureꢀ
Humidity
Duration
Bias
+85 ˚C
85ꢀ%ꢀRH
1000ꢀhours
maxꢀinputꢀvoltage
Acceleratedꢀdampꢀheatꢀ
Solderability
JESD22-A101-B
IECꢀ60068-2-54ꢀ
(AgedꢀaccordingꢀtoꢀJESD22-A101-
B,ꢀ240hꢀnoꢀbias)
Solderꢀimmersionꢀdepth
Timeꢀforꢀonsetꢀofꢀwetting
Wettingꢀforce
2ꢀmm
<ꢀ2.5ꢀs
>ꢀ200ꢀmN/m
Temperature
Duration
-45 ˚C
72ꢀh
Coldꢀ(inꢀoperation)
IECꢀ60068-2-1
Temperature
Duration
+125 ˚C
1000ꢀh
Highꢀtemperatureꢀstorage
JESD22-A103-BA
PMBꢀ8818TꢀPꢀDatasheet
ꢂ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
Safety Specification
Generalꢀinformation.
IsolatedꢀDC/DCꢀconverters.
EricssonꢀPowerꢀModulesꢀDC/DCꢀconvertersꢀandꢀDC/DCꢀregulatorsꢀ
areꢀdesignedꢀinꢀaccordanceꢀwithꢀsafetyꢀstandardsꢀꢀ
IEC/EN/ULꢀ60ꢀ950, Safety of Information Technology Equipment.
Itꢀisꢀrecommendedꢀthatꢀaꢀfastꢀblowꢀfuseꢀwithꢀaꢀratingꢀ
twiceꢀtheꢀmaximumꢀinputꢀcurrentꢀperꢀselectedꢀproductꢀ
beꢀusedꢀatꢀtheꢀinputꢀofꢀeachꢀDC/DCꢀconverter.ꢀIfꢀanꢀinputꢀfilterꢀisꢀ
usedꢀinꢀtheꢀcircuitꢀtheꢀfuseꢀshouldꢀbeꢀplacedꢀinꢀfrontꢀofꢀtheꢀinputꢀ
filter.ꢀꢀ
IEC/EN/UL60950ꢀcontainsꢀrequirementsꢀtoꢀpreventꢀinjuryꢀorꢀ
damageꢀdueꢀtoꢀtheꢀfollowingꢀhazards:ꢀ
Inꢀtheꢀrareꢀeventꢀofꢀaꢀcomponentꢀproblemꢀinꢀtheꢀinputꢀfilterꢀorꢀinꢀtheꢀ
DC/DCꢀconverterꢀthatꢀimposesꢀaꢀshortꢀcircuitꢀonꢀtheꢀinputꢀsource,ꢀ
thisꢀfuseꢀwillꢀprovideꢀtheꢀfollowingꢀfunctions:ꢀ
ꢀ
•ꢀꢀElectrical shock
•ꢀꢀEnergy hazards
•ꢀꢀFire
•ꢀꢀIsolateꢀtheꢀfaultyꢀDC/DCꢀconverterꢀfromꢀtheꢀinputꢀpowerꢀsourceꢀ
soꢀasꢀnotꢀtoꢀaffectꢀtheꢀoperationꢀofꢀotherꢀpartsꢀofꢀtheꢀsystem.
•ꢀꢀMechanical and heat hazards
•ꢀꢀRadiation hazards
•ꢀꢀChemical hazards
•ꢀꢀProtectꢀtheꢀdistributionꢀwiringꢀfromꢀexcessiveꢀcurrentꢀandꢀpowerꢀ
lossꢀthusꢀpreventingꢀhazardousꢀoverheating.
Theꢀgalvanicꢀisolationꢀisꢀverifiedꢀinꢀanꢀelectricꢀstrengthꢀtest.ꢀꢀTheꢀtestꢀ
voltageꢀ(VISO)ꢀbetweenꢀinputꢀandꢀoutputꢀisꢀ1500ꢀVdcꢀorꢀ2250ꢀVdcꢀforꢀ
60ꢀsecondsꢀ(referꢀtoꢀproductꢀspecification).ꢀꢀLeakageꢀcurrentꢀisꢀlessꢀ
thanꢀ1µAꢀatꢀnominalꢀinputꢀvoltage.
On-boardꢀDC-DCꢀconvertersꢀareꢀdefinedꢀasꢀcomponentꢀpowerꢀ
supplies.ꢀAsꢀcomponentsꢀtheyꢀcannotꢀfullyꢀcomplyꢀwithꢀtheꢀ
provisionsꢀofꢀanyꢀSafetyꢀrequirementsꢀwithoutꢀ“Conditionsꢀofꢀ
Acceptability”.ꢀItꢀisꢀtheꢀresponsibilityꢀofꢀtheꢀinstallerꢀtoꢀensureꢀthatꢀ
theꢀfinalꢀproductꢀhousingꢀtheseꢀcomponentsꢀcompliesꢀwithꢀtheꢀ
requirementsꢀofꢀallꢀapplicableꢀSafetyꢀstandardsꢀandꢀDirectivesꢀforꢀ
theꢀfinalꢀproduct.
24ꢀVꢀdcꢀsystems.
TheꢀinputꢀvoltageꢀtoꢀtheꢀDC/DCꢀconverterꢀisꢀSELVꢀ(SafetyꢀExtraꢀLowꢀ
Voltage)ꢀandꢀtheꢀoutputꢀremainsꢀSELVꢀunderꢀnormalꢀandꢀabnormalꢀ
operatingꢀconditions.
Componentꢀpowerꢀsuppliesꢀforꢀgeneralꢀuseꢀshouldꢀcomplyꢀwithꢀ
theꢀrequirementsꢀinꢀIEC60950,ꢀEN60950ꢀandꢀUL60950ꢀ“Safetyꢀofꢀ
informationꢀtechnologyꢀequipment”.ꢀ
Thereꢀareꢀotherꢀmoreꢀproductꢀrelatedꢀstandards,ꢀe.g.ꢀ
IEC61204-7ꢀ“Safetyꢀstandardꢀforꢀpowerꢀsupplies",ꢀ
48ꢀandꢀ60ꢀVꢀdcꢀsystems.
IfꢀtheꢀinputꢀvoltageꢀtoꢀEricssonꢀPowerꢀModulesꢀDC/DCꢀconverterꢀ
isꢀ75ꢀVꢀdcꢀorꢀless,ꢀthenꢀtheꢀoutputꢀremainsꢀSELVꢀ(SafetyꢀExtraꢀLowꢀ
Voltage)ꢀunderꢀnormalꢀandꢀabnormalꢀoperatingꢀconditions.ꢀꢀ
ꢀ
Singleꢀfaultꢀtestingꢀinꢀtheꢀinputꢀpowerꢀsupplyꢀcircuitꢀshouldꢀbeꢀ
performedꢀwithꢀtheꢀDC/DCꢀconverterꢀconnectedꢀtoꢀdemonstrateꢀ
thatꢀtheꢀinputꢀvoltageꢀdoesꢀnotꢀexceedꢀ75ꢀVꢀdc.ꢀꢀ
IEEE802.3afꢀ“EthernetꢀLAN/MANꢀDataꢀterminalꢀequipmentꢀ
power”,ꢀandꢀETS300132-2ꢀ“Powerꢀsupplyꢀinterfaceꢀatꢀtheꢀinputꢀ
toꢀtelecommunicationsꢀequipment;ꢀpartꢀ2:ꢀDC”,ꢀbutꢀallꢀofꢀtheseꢀ
standardsꢀareꢀbasedꢀonꢀIEC/EN/UL60950ꢀwithꢀregardsꢀtoꢀsafety.
EricssonꢀPowerꢀModulesꢀDC/DCꢀconvertersꢀandꢀDC/DCꢀregulatorsꢀ
areꢀULꢀ60ꢀ950ꢀrecognizedꢀandꢀcertifiedꢀinꢀaccordanceꢀwithꢀENꢀ60ꢀ
950.
IfꢀtheꢀinputꢀpowerꢀsourceꢀcircuitꢀisꢀaꢀDCꢀpowerꢀsystem,ꢀtheꢀsourceꢀ
mayꢀbeꢀtreatedꢀasꢀaꢀTNV2ꢀcircuitꢀandꢀtestingꢀhasꢀdemonstratedꢀ
complianceꢀwithꢀSELVꢀlimitsꢀandꢀisolationꢀrequirementsꢀequivalentꢀ
toꢀBasicꢀInsulationꢀinꢀaccordanceꢀwithꢀIEC/EN/ULꢀ60ꢀ950.
Theꢀflammabilityꢀratingꢀforꢀallꢀconstructionꢀpartsꢀofꢀtheꢀproductsꢀ
meetsꢀULꢀ94V-0.
Theꢀproductsꢀshouldꢀbeꢀinstalledꢀinꢀtheꢀend-useꢀequipment,ꢀinꢀ
accordanceꢀwithꢀtheꢀrequirementsꢀofꢀtheꢀultimateꢀapplication.ꢀ
NormallyꢀtheꢀoutputꢀofꢀtheꢀDC/DCꢀconverterꢀisꢀconsideredꢀasꢀSELVꢀ
(SafetyꢀExtraꢀLowꢀVoltage)ꢀandꢀtheꢀinputꢀsourceꢀmustꢀbeꢀisolatedꢀbyꢀ
minimumꢀDoubleꢀorꢀReinforcedꢀInsulationꢀfromꢀtheꢀprimaryꢀcircuitꢀ
(ACꢀmains)ꢀinꢀaccordanceꢀwithꢀIEC/EN/ULꢀ60ꢀ950.
Non-isolatedꢀDC/DCꢀregulators.
TheꢀinputꢀvoltageꢀtoꢀtheꢀDC/DCꢀregulatorꢀisꢀSELVꢀ(SafetyꢀExtraꢀLowꢀ
Voltage)ꢀandꢀtheꢀoutputꢀremainsꢀSELVꢀunderꢀnormalꢀandꢀabnormalꢀ
operatingꢀconditions.ꢀ
Itꢀisꢀrecommendedꢀthatꢀaꢀslowꢀblowꢀfuseꢀwithꢀaꢀratingꢀ
twiceꢀtheꢀmaximumꢀinputꢀcurrentꢀperꢀselectedꢀproductꢀ
beꢀusedꢀatꢀtheꢀinputꢀofꢀeachꢀDC/DCꢀregulator.ꢀ
ꢃ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Output
Adjusted to 1.0 Vout - Data
Trefꢀ=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀVIꢀ=ꢀ8.3ꢀ...ꢀ16ꢀVꢀunlessꢀotherwiseꢀspecified.ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµFꢀ
Typꢀvaluesꢀspecifiedꢀat:ꢀTrefꢀ=ꢀ+25ꢀ°CꢀandꢀVInom.ꢀIOmaxꢀ=ꢀ16ꢀA.ꢀNote:ꢀ+Senseꢀconnectedꢀtoꢀ+Out.ꢀRadjꢀ41.42ꢀkΩ
Characteristics
Conditions
Unit
min
-2
typ
max
+2
dVOi
Outputꢀvoltageꢀadjustedꢀsettingꢀ
Outputꢀvoltageꢀtoleranceꢀband
Idlingꢀvoltage
T
refꢀ
=ꢀ+25ꢀ°C,ꢀVInom,ꢀIOmax
%ꢀVO
%ꢀVO
%ꢀVO
mV
dVO
dVO
dVO
dVO
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax
IOꢀ=ꢀ0ꢀA
-3
+3
-2
+2
Lineꢀregulation
VIminꢀ...ꢀVImax,ꢀIOmax
0.01...1.0ꢀxꢀIOmax,ꢀVInom
2
Loadꢀregulation
25
mV
Loadꢀtransientꢀ
recoveryꢀtime
ttr
Loadꢀstepꢀ=ꢀ0.25-0.75-0.25ꢀxꢀIOmax,ꢀ
dI/dtꢀ=ꢀ5ꢀA/µs,ꢀCOꢀ=ꢀ2ꢀxꢀ150ꢀµF,ꢀ
VIꢀ=ꢀ12ꢀV
40
µs
Vtr
Loadꢀtransientꢀvoltage
Temperatureꢀcoefficient
±100
-0.6
7
mV
mV/°C
ms
ms
ms
s
T
refꢀ
=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀIOmax
Tcoeff
ts
Start-upꢀVI onꢀtoꢀ0.9ꢀxꢀVO
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀIOmax,ꢀVInomꢀ
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
ꢀ
tr
Ramp-up,ꢀVI ...ꢀ0.9ꢀxꢀVO
ꢀ
3
tf
Fallꢀtime,ꢀVIꢀtoꢀ0.1ꢀxꢀVO
Fallꢀtime,ꢀVIꢀtoꢀ0.1ꢀxꢀVO
RCꢀshut-downꢀtimeꢀ0.1ꢀxꢀVO
RCꢀstart-upꢀtimeꢀ0.9ꢀxꢀVOꢀ
RCꢀfallꢀtime,ꢀ0.1ꢀxꢀVOꢀ
Outputꢀcurrent
1
tf
22
1
tRC
tRC
tRC
IO
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
ms
ms
s
7
24
0
16
A
POmax Maxꢀoutputꢀpower
16
19
W
Ilim
VOac
η
Currentꢀlimitingꢀthreshold
T
< Trefmax
A
refꢀ
ꢀ
Outputꢀrippleꢀ
20ꢀHzꢀ...ꢀ5ꢀMHz,ꢀIOmax
IOꢀ=ꢀ0.5ꢀxꢀIOmax,ꢀVOꢀ=ꢀ1.00ꢀV
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ1.00ꢀV
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ1.00ꢀV
IOꢀ=ꢀ(0...ꢀ1)ꢀxꢀIOmax
50
mVp-p
%
Efficiencyꢀ-ꢀ50%ꢀload
Efficiencyꢀ-ꢀ100%ꢀload
PowerꢀDissipation
83.6
81.5
3.6
η
77.3
260
%
P
4.7
340
10
W
d
Fo
Switchingꢀfrequency
Remoteꢀsenseꢀcurrent
StaticꢀinputꢀcurrentꢀVIꢀ=ꢀ8.3ꢀV
300
kHz
mA
A
Isense
II
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ1.00ꢀV
2.4
5
millionꢀ
hours
MTBF
Predictedꢀreliability
ꢄ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Adjusted to 1.0 Vout - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµF
Efficiency
Power Dissipation
<ꢀ>
<8>
ꢈꢀ
ꢇ
ꢂꢆ
ꢂꢀ
ꢁ
ꢀꢁꢂꢃ7
ꢄꢅꢃ7
ꢄꢆꢃ7
ꢄꢇꢃ7
ꢆ
ꢄ
ꢃ
ꢀ
ꢁꢂꢃꢄ7
ꢅꢆꢄ7
ꢅꢇꢄ7
ꢇꢆ
ꢅꢈꢄ7
ꢇꢀ
ꢅꢆ
<">
ꢃꢅ
ꢀ
ꢁ
ꢂ
ꢃꢄ
ꢀ
ꢁ
ꢂ
ꢃꢄ
ꢃꢅ <">
Efficiencyꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀTrefꢀ=ꢀ+25ꢀ°C
Dissipatedꢀpowerꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀꢀ
refꢀ=ꢀ+25ꢀ°C
T
Output Current Derating at 1ꢀ V input
Output Characteristics
<7>
<">
ꢈꢁ
ꢃꢆꢄ
ꢆꢂ
ꢃꢆꢃ
ꢆꢈ
ꢃꢆꢀ
ꢉꢊꢁꢋNꢌTꢋꢍꢂꢁꢁꢋMGNꢎꢋꢋ
ꢈꢊꢀꢋNꢌTꢋꢍꢀꢁꢁꢋMGNꢎ
ꢈꢊꢁꢋNꢌTꢋꢍꢇꢁꢁꢋMGNꢎ
ꢆꢊꢀꢋNꢌTꢋꢍꢉꢁꢁꢋMGNꢎ
ꢄ
ꢀꢁꢂꢃ7
ꢄꢅꢃ7
ꢄꢆꢃ7
ꢄꢇꢃ7
ꢀꢆꢇ
ꢇ
ꢆꢊꢁꢋNꢌTꢋꢍꢈꢁꢁꢋMGNꢎ
/BUꢊꢋ$POWꢊ
ꢀꢆꢂ
ꢁ
ꢀ
ꢁ
ꢂ
ꢃꢄ
ꢃꢅ
<">
<«$>
ꢆꢆꢁ
ꢀꢁ
ꢂꢁ
ꢃꢁ
ꢄꢁ
ꢅꢁ
ꢆꢁꢁ
Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ12ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ30.
Outputꢀvoltageꢀvs.ꢀloadꢀcurrent.ꢀ
Start-Up
Turn Off
Turn-offꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀ
Vinꢀ=ꢀ12ꢀV.ꢀTurn-offꢀenabledꢀbyꢀdisconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(10ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
Start-upꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀꢀ=ꢀ+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ12ꢀV.ꢀStartꢀenabledꢀbyꢀconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(10ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
ꢅ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Adjusted to 1.0 Vout - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµF
Output Ripple
Transient
Outputꢀvoltageꢀrippleꢀ(20ꢀmV/div.)ꢀatꢀTref=+25ꢀ°C,ꢀ
Vinꢀ=ꢀ12ꢀV,ꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀload.ꢀ
Bandꢀwidthꢀ=ꢀ5ꢀMHz.ꢀ
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀꢀ=ꢀ+25ꢀ°C,ꢀVinꢀ=ꢀ12ꢀV.ꢀdI/dtꢀ=ꢀ5ꢀA/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
Timeꢀscale:ꢀ2ꢀµs/div.
ꢆ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Output
Adjusted to 1.ꢀ Vout - Data
Trefꢀ=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀVIꢀ=ꢀ8.3ꢀ...ꢀ16ꢀVꢀunlessꢀotherwiseꢀspecified.ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµFꢀ
Typꢀvaluesꢀspecifiedꢀat:ꢀTrefꢀ=ꢀ+25ꢀ°CꢀandꢀVInom,ꢀIOmaxꢀ=ꢀ16ꢀA.ꢀNote:ꢀ+Senseꢀconnectedꢀtoꢀ+Out.ꢀRadjꢀ22.46ꢀkΩ
Characteristics
Conditions
Unit
min
-2
typ
max
+2
dVOi
Outputꢀvoltageꢀadjustedꢀsettingꢀ
Outputꢀvoltageꢀtoleranceꢀband
Idlingꢀvoltage
T
refꢀ
=ꢀ+25ꢀ°C,ꢀVInom,ꢀIOmax
%ꢀVO
%ꢀVO
%ꢀVO
mV
dVO
dVO
dVO
dVO
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax
IOꢀ=ꢀ0ꢀA
-3
+3
-2
+2
Lineꢀregulation
VIminꢀ...ꢀVImax,ꢀIOmax
0.01...1.0ꢀxꢀIOmax,ꢀVInom
2
Loadꢀregulation
25
mV
Loadꢀtransientꢀ
recoveryꢀtime
ttr
Loadꢀstepꢀ=ꢀ0.25-0.75-0.25ꢀxꢀIOmax,ꢀ
dI/dtꢀ=ꢀ5ꢀA/µs,ꢀCOꢀ=ꢀ2ꢀxꢀ150ꢀµF,ꢀ
VIꢀ=ꢀ12ꢀV
40
µs
Vtr
Loadꢀtransientꢀvoltage
Temperatureꢀcoefficient
±100
-0.6
7
mV
mV/°C
ms
ms
ms
s
T
refꢀ
=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀIOmax
Tcoeff
ts
Start-upꢀVI onꢀtoꢀ0.9ꢀxꢀVO
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀIOmax,ꢀVInomꢀ
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
ꢀ
tr
Ramp-up,ꢀVI ...ꢀ0.9ꢀxꢀVO
ꢀ
3
tf
Fallꢀtime,ꢀVIꢀtoꢀ0.1xꢀVO
Fallꢀtime,ꢀVIꢀtoꢀ0.1ꢀxꢀVO
RCꢀshut-downꢀtimeꢀ0.1ꢀxꢀVOꢀ
RCꢀstart-upꢀtimeꢀ0.9ꢀxꢀVOꢀ
RCꢀfallꢀtime,ꢀ0.1ꢀxꢀVO
Outputꢀcurrent
1
tf
21
1
tRC
tRC
tRC
IO
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
ms
ms
s
7
21
0
16
A
POmax Maxꢀoutputꢀpower
19.2
19
W
Ilim
VOac
η
Currentꢀlimitingꢀthreshold
T
< Trefmax
A
refꢀ
ꢀ
Outputꢀrippleꢀ
20ꢀHzꢀ...ꢀ5ꢀMHz,ꢀIOmax
IOꢀ=ꢀ0.5ꢀxꢀIOmax,ꢀVOꢀ=ꢀ1.20ꢀV
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ1.20ꢀV
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ1.20ꢀV
IOꢀ=ꢀ(0...ꢀ1)ꢀxꢀIOmax
50
mVp-p
%
Efficiencyꢀ-ꢀ50%ꢀload
Efficiencyꢀ-ꢀ100%ꢀload
PowerꢀDissipation
85.6
83.9
3.6
η
80.1
260
%
P
4.7
340
10
W
d
Fo
Switchingꢀfrequency
Remoteꢀsenseꢀcurrent
StaticꢀinputꢀcurrentꢀVIꢀ=ꢀ8.3ꢀV
300
kHz
mA
A
Isense
II
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ1.20ꢀV
2.8
5
millionꢀ
hours
MTBF
Predictedꢀreliability
ꢇ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Adjusted to 1.ꢀ Vout - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµF
Efficiency
Power Dissipation
<ꢀ>
<8>
ꢈꢇ
ꢇ
ꢈꢀ
ꢂꢇ
ꢁ
ꢀꢁꢂꢃ7
ꢄꢅꢃ7
ꢄꢆꢃ7
ꢄꢇꢃ7
ꢆ
ꢄ
ꢃ
ꢀ
ꢂꢀ
ꢁꢂꢃꢄ7
ꢅꢆꢄ7
ꢅꢇꢄ7
ꢅꢈꢄ7
ꢆꢇ
ꢆꢀ
ꢀ
ꢁ
ꢂ
ꢃꢄ
ꢃꢅ
<">
ꢁ
ꢂ
ꢃꢄ
ꢃꢅ <">
ꢀ
Efficiencyꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀTrefꢀ=ꢀ+25ꢀ°C
Dissipatedꢀpowerꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀꢀ
refꢀ=ꢀ+25ꢀ°C
T
Output Current Derating at 1ꢀ V input
Output Characteristic
<">
ꢈꢁ
[V]
ꢃꢆꢁ
ꢆꢂ
ꢃꢆꢇ
ꢆꢈ
ꢃꢆꢄ
ꢉꢊꢁꢋNꢌTꢋꢍꢂꢁꢁꢋMGNꢎꢋꢋ
ꢈꢊꢀꢋNꢌTꢋꢍꢀꢁꢁꢋMGNꢎ
ꢄ
ꢀꢁꢂꢃ7
ꢄꢅꢃ7
ꢄꢆꢃ7
ꢄꢇꢃ7
ꢈꢊꢁꢋNꢌTꢋꢍꢇꢁꢁꢋMGNꢎ
ꢆꢊꢀꢋNꢌTꢋꢍꢉꢁꢁꢋMGNꢎ
ꢆꢊꢁꢋNꢌTꢋꢍꢈꢁꢁꢋMGNꢎ
ꢃꢆꢃ
ꢇ
/BUꢊꢋ$POWꢊ
ꢃꢆꢀ
ꢁ
ꢀ
ꢁ
ꢂ
ꢃꢄ
ꢃꢅ
[A]
<«$>
ꢆꢆꢁ
ꢀꢁ
ꢂꢁ
ꢃꢁ
ꢄꢁ
ꢅꢁ
ꢆꢁꢁ
Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ12ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ30.
Outputꢀvoltageꢀvs.ꢀloadꢀcurrent.ꢀ
Start-Up
Turn Off
Turn-offꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀ
Vinꢀ=ꢀ12ꢀV.ꢀTurn-offꢀenabledꢀbyꢀdisconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(10ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
Start-upꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀꢀ=ꢀ+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ12ꢀV.ꢀStartꢀenabledꢀbyꢀconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(10ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
10
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Adjusted to 1.ꢀ Vout - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµF
Output Ripple
Transient
Outputꢀvoltageꢀrippleꢀ(20ꢀmV/div.)ꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀ
Vinꢀ=ꢀ12ꢀV,ꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀload.ꢀ
Bandꢀwidthꢀ=ꢀ5ꢀMHz.ꢀ
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀVinꢀ=ꢀ12ꢀV.ꢀdI/dtꢀ=ꢀ5ꢀA/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
Timeꢀscale:ꢀ2ꢀµs/div.
11
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Output
Adjusted to 1.ꢃ Vout - Data
Trefꢀ=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀVIꢀ=ꢀ8.3ꢀ...16ꢀVꢀunlessꢀotherwiseꢀspecified.ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµFꢀ
Typꢀvaluesꢀspecifiedꢀat:ꢀTrefꢀ=ꢀ+25ꢀ°CꢀandꢀVInom.ꢀIOmaxꢀ=ꢀ16ꢀA.ꢀNote:ꢀ+Senseꢀconnectedꢀtoꢀ+Out.ꢀRadjꢀ13.05ꢀkΩ
Characteristics
Conditions
Unit
min
-2
typ
max
+2
dVOi
Outputꢀvoltageꢀadjustedꢀsettingꢀ
Outputꢀvoltageꢀtoleranceꢀband
Idlingꢀvoltage
T
refꢀ
=ꢀ+25ꢀ°C,ꢀVInom,ꢀIOmax
%ꢀVO
%ꢀVO
%ꢀVO
mV
dVO
dVO
dVO
dVO
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax
IOꢀ=ꢀ0ꢀA
-3
+3
-2
+2
Lineꢀregulation
VIminꢀ...ꢀVImax,ꢀIOmax
0.01...1.0ꢀxꢀIOmax,ꢀVInom
2
Loadꢀregulation
25
mV
Loadꢀtransientꢀ
recoveryꢀtime
ttr
Loadꢀstepꢀ=ꢀ0.25-0.75-0.25ꢀxꢀIOmax,ꢀ
dI/dtꢀ=ꢀ5ꢀA/µs,ꢀCOꢀ=ꢀ2ꢀxꢀ150ꢀµF,ꢀ
VIꢀ=ꢀ12ꢀV
40
µs
Vtr
Loadꢀtransientꢀvoltage
Temperatureꢀcoefficient
±100
-0.6
7
mV
mV/°C
ms
ms
ms
s
T
refꢀ
=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀIOmax
Tcoeff
ts
Start-upꢀVI onꢀtoꢀ0.9ꢀxꢀVO
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀIOmax,ꢀVInomꢀ
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
ꢀ
tr
Ramp-up,ꢀVI ...ꢀ0.9ꢀxꢀVO
ꢀ
3
tf
Fallꢀtime,ꢀVIꢀtoꢀ0.1ꢀxꢀVO
Fallꢀtime,ꢀVIꢀtoꢀ0.1ꢀxꢀVO
RCꢀshut-downꢀtimeꢀ0.1ꢀxꢀVO
RCꢀstart-upꢀtimeꢀ0.9ꢀxꢀVOꢀ
RCꢀfallꢀtime,ꢀ0.1ꢀxꢀVOꢀ
Outputꢀcurrent
1
tf
20
1
tRC
tRC
tRC
IO
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
ms
ms
s
7
20
0
16
A
POmax Maxꢀoutputꢀpower
24
19
W
Ilim
VOac
η
Currentꢀlimitingꢀthreshold
T
< Trefmax
A
refꢀ
ꢀ
Outputꢀrippleꢀ
20ꢀHzꢀ...ꢀ5ꢀMHz,ꢀIOmax
IOꢀ=ꢀ0.5ꢀxꢀIOmax,ꢀVOꢀ=ꢀ1.50ꢀV
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ1.50ꢀV
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ1.50ꢀV
IOꢀ=ꢀ(0...ꢀ1)ꢀxꢀIOmax
50
mVp-p
%
Efficiencyꢀ-ꢀ50%ꢀload
Efficiencyꢀ-ꢀ100%ꢀload
PowerꢀDissipation
87.7
86.3
3.8
η
82.9
260
%
P
4.9
340
10
W
d
Fo
Switchingꢀfrequency
Remoteꢀsenseꢀcurrent
StaticꢀinputꢀcurrentꢀVIꢀ=ꢀ8.3ꢀV
300
kHz
mA
A
Isense
II
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ1.50ꢀV
3.4
5
millionꢀ
hours
MTBF
Predictedꢀreliability
1ꢀ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Adjusted to 1.ꢃ Vout - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµF
Power Dissipation
Efficiency
<ꢀ>
<8>
ꢈꢇ
ꢇ
ꢈꢀ
ꢁ
ꢀꢁꢂꢃ7
ꢄꢅꢃ7
ꢄꢆꢃ7
ꢄꢇꢃ7
ꢂꢇ
ꢆ
ꢄ
ꢃ
ꢀ
ꢁꢂꢃꢄ7
ꢅꢆꢄ7
ꢅꢇꢄ7
ꢅꢈꢄ7
ꢂꢀ
ꢆꢇ
ꢆꢀ
ꢁ
ꢂ
ꢃꢄ
ꢀ
ꢃꢅ <">
<">
ꢀ
ꢁ
ꢂ
ꢃꢄ
ꢃꢅ
Efficiencyꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀTrefꢀ=ꢀ+25ꢀ°C
Dissipatedꢀpowerꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀꢀ
refꢀ=ꢀ+25ꢀ°C
T
Output Current Derating at 1ꢀ V input
Output Characteristic
<">
ꢈꢁ
<7>
ꢃꢆꢉ
ꢆꢂ
ꢃꢆꢅ
ꢆꢈ
ꢃꢆꢈ
ꢉꢊꢁꢋNꢌTꢋꢍꢂꢁꢁꢋMGNꢎꢋꢋ
ꢈꢊꢀꢋNꢌTꢋꢍꢀꢁꢁꢋMGNꢎ
ꢄ
ꢀꢁꢂꢃ7
ꢈꢊꢁꢋNꢌTꢋꢍꢇꢁꢁꢋMGNꢎ
ꢆꢊꢀꢋNꢌTꢋꢍꢉꢁꢁꢋMGNꢎ
ꢆꢊꢁꢋNꢌTꢋꢍꢈꢁꢁꢋMGNꢎ
/BUꢊꢋ$POWꢊ
ꢄꢅꢃ7
ꢄꢆꢃ7
ꢄꢇꢃ7
ꢃꢆꢁ
ꢃꢆꢇ
ꢇ
ꢁ
ꢁ
ꢀ
ꢂ
ꢃꢄ
ꢃꢅ
<">
<«$>
ꢆꢆꢁ
ꢀꢁ
ꢂꢁ
ꢃꢁ
ꢄꢁ
ꢅꢁ
ꢆꢁꢁ
Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ12ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ30.
Outputꢀvoltageꢀvs.ꢀloadꢀcurrent.ꢀ
Start-Up
Turn Off
Turn-offꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀ
Vinꢀ=ꢀ12ꢀV.ꢀTurn-offꢀenabledꢀbyꢀdisconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(10ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
Start-upꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀꢀ=ꢀ+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ12ꢀV.ꢀStartꢀenabledꢀbyꢀconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(10ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
1ꢁ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Adjusted to 1.ꢃ Vout - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµF
Output Ripple
Transient
Outputꢀvoltageꢀrippleꢀ(20ꢀmV/div.)ꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀ
Vinꢀ=ꢀ12ꢀV,ꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀload.ꢀ
Bandꢀwidthꢀ=ꢀ5ꢀMHz.ꢀ
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀꢀ=ꢀ+25ꢀ°C,ꢀVinꢀ=ꢀ12ꢀV.ꢀdI/dtꢀ=ꢀ5ꢀA/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
Timeꢀscale:ꢀ2ꢀµs/div.
1ꢂ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Output
Adjusted to 1.ꢆ Vout - Data
Trefꢀ=ꢀ–30…+90ꢀ°C,ꢀVIꢀ=ꢀ8.3ꢀ...ꢀ16ꢀVꢀunlessꢀotherwiseꢀspecified.ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµFꢀ
Typꢀvaluesꢀspecifiedꢀat:ꢀTrefꢀ=ꢀ+25ꢀ°CꢀandꢀVInom.ꢀIOmaxꢀ=ꢀ16ꢀA.ꢀNote:ꢀ+Senseꢀconnectedꢀtoꢀ+Out.ꢀRadjꢀ9.024ꢀkΩ
Characteristics
Conditions
Unit
min
-2
typ
max
+2
dVOi
Outputꢀvoltageꢀadjustedꢀsettingꢀ
Outputꢀvoltageꢀtoleranceꢀband
Idlingꢀvoltage
T
refꢀ
=ꢀ+25ꢀ°C,ꢀVInom,ꢀIOmax
%ꢀVO
%ꢀVO
%ꢀVO
mV
dVO
dVO
dVO
dVO
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax
IOꢀ=ꢀ0ꢀA
-3
+3
-2
+2
Lineꢀregulation
VIminꢀ...ꢀVImax,ꢀIOmax
0.01...1.0ꢀxꢀIOmax,ꢀVInom
2
Loadꢀregulation
25
mV
Loadꢀtransientꢀ
recoveryꢀtime
ttr
Loadꢀstepꢀ=ꢀ0.25-0.75-0.25ꢀxꢀIOmax,ꢀ
dI/dtꢀ=ꢀ5ꢀA/µs,ꢀCOꢀ=ꢀ2ꢀxꢀ150ꢀµF,ꢀ
VIꢀ=ꢀ12ꢀV
40
µs
Vtr
Loadꢀtransientꢀvoltage
Temperatureꢀcoefficient
±100
-0.6
7
mV
mV/°C
ms
ms
ms
s
T
refꢀ
=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀIOmax
Tcoeff
ts
Start-upꢀVI onꢀtoꢀ0.9ꢀxꢀVO
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀIOmax,ꢀVInomꢀ
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
ꢀ
tr
Ramp-up,ꢀVI ...ꢀ0.9ꢀxꢀVO
ꢀ
3
tf
Fallꢀtime,ꢀVIꢀtoꢀ0.1ꢀxꢀVO
Fallꢀtime,ꢀVIꢀtoꢀ0.1ꢀxꢀVO
RCꢀshut-downꢀtimeꢀ0.1ꢀxꢀVOꢀ
RCꢀstart-upꢀtimeꢀ0.9ꢀxꢀVO
RCꢀfallꢀtime,ꢀ0.1ꢀxꢀVOꢀ
Outputꢀcurrent
1
tf
18
1
tRC
tRC
tRC
IO
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
ms
ms
s
7
18
0
16
A
POmax Maxꢀoutputꢀpower
28.8
19
W
Ilim
VOac
η
Currentꢀlimitingꢀthreshold
T
< Trefmax
A
refꢀ
ꢀ
Outputꢀripple
20ꢀHzꢀ...ꢀ5ꢀMHz,ꢀIOmax
IOꢀ=ꢀ0.5ꢀxꢀIOmax,ꢀVOꢀ=ꢀ1.80ꢀV
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ1.80ꢀV
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ1.80ꢀV
IOꢀ=ꢀ(0...ꢀ1)ꢀxꢀIOmax
50
mVp-p
%
Efficiencyꢀ-ꢀ50%ꢀload
Efficiencyꢀ-ꢀ100%ꢀload
PowerꢀDissipation
89.2
88.1
3.9
η
85.0
260
%
P
5.1
340
10
W
d
Fo
Switchingꢀfrequency
Remoteꢀsenseꢀcurrent
StaticꢀinputꢀcurrentꢀVIꢀ=ꢀ8.3ꢀV
300
kHz
mA
A
Isense
II
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ1.80ꢀV
4.0
5
millionꢀ
hours
MTBF
Predictedꢀreliability
1ꢃ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Adjusted to 1.ꢆ Vout - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµF
Efficiency
Power Dissipation
[% ]
<8>
ꢈꢇ
ꢅ
ꢇ
ꢁ
ꢈꢀ
ꢂꢇ
ꢀꢁꢂꢃ7
ꢄꢅꢃ7
ꢄꢆꢃ7
ꢄꢇꢃ7
ꢀꢁꢂꢃ7
ꢄꢅꢃ7
ꢄꢆꢃ7
ꢆ
ꢄ
ꢃ
ꢀ
ꢂꢀ
ꢄꢇꢃ7
ꢆꢇ
ꢆꢀ
ꢀ
ꢁ
ꢂ
ꢃꢄ
ꢃꢅ
<">
[A]
ꢃꢅ
ꢁ
ꢂ
ꢃꢄ
ꢀ
Dissipatedꢀpowerꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀꢀ
ref=+25ꢀ°C
Efficiencyꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀTrefꢀ=ꢀ+25ꢀ°C
T
Output Current Derating at 1ꢀ V input
Output Characteristic
<">
ꢈꢁ
<7>
ꢄꢆꢀ
ꢆꢂ
ꢃꢆꢈ
ꢃꢆꢂ
ꢆꢈ
ꢉꢊꢁꢋNꢌTꢋꢍꢂꢁꢁꢋMGNꢎꢋꢋ
ꢈꢊꢀꢋNꢌTꢋꢍꢀꢁꢁꢋMGNꢎ
ꢈꢊꢁꢋNꢌTꢋꢍꢇꢁꢁꢋMGNꢎ
ꢆꢊꢀꢋNꢌTꢋꢍꢉꢁꢁꢋMGNꢎ
ꢄ
ꢀꢁꢂꢃ7
ꢄꢅꢃ7
ꢄꢆꢃ7
ꢃꢆꢇ
ꢇ
ꢄꢇꢃ7
ꢆꢊꢁꢋNꢌTꢋꢍꢈꢁꢁꢋMGNꢎ
/BUꢊꢋ$POWꢊ
ꢃꢆꢅ
ꢁ
ꢀ
ꢁ
ꢂ
ꢃꢄ
ꢃꢅ
<">
<«$>
ꢆꢆꢁ
ꢀꢁ
ꢂꢁ
ꢃꢁ
ꢄꢁ
ꢅꢁ
ꢆꢁꢁ
Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ12ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ30.
Outputꢀvoltageꢀvs.ꢀloadꢀcurrent.ꢀ
Turn Off
Start-Up
Turn-offꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀ
Vinꢀ=ꢀ12ꢀV.ꢀTurn-offꢀenabledꢀbyꢀdisconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(10ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
Start-upꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀꢀ=ꢀ+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ12ꢀV.ꢀStartꢀenabledꢀbyꢀconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(10ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
1ꢄ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Adjusted to 1.ꢆ Vout - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµF
Output Ripple
Transient
Outputꢀvoltageꢀrippleꢀ(20ꢀmV/div.)ꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀ
Vinꢀ=ꢀ12ꢀV,ꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀload.ꢀ
Bandꢀwidthꢀ=ꢀ5ꢀMHz.ꢀ
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀꢀ=ꢀ+25ꢀ°C,ꢀVinꢀ=ꢀ12ꢀV.ꢀdI/dtꢀ=ꢀ5ꢀA/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
Timeꢀscale:ꢀ2ꢀµs/div.
1ꢅ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Output
Adjusted to ꢀ.ꢃ Vout - Data
Trefꢀ=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀVIꢀ=ꢀ8.3ꢀ...16ꢀVꢀunlessꢀotherwiseꢀspecified.ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµFꢀ
Typꢀvaluesꢀspecifiedꢀat:ꢀTrefꢀ=ꢀ+25ꢀ°CꢀandꢀVInom.ꢀIOmaxꢀ=ꢀ16ꢀA.ꢀNote:ꢀ+Senseꢀconnectedꢀtoꢀ+Out.ꢀRadjꢀ5.009ꢀkΩ
Characteristics
Conditions
Unit
min
-2
typ
max
+2
dVOi
Outputꢀvoltageꢀadjustedꢀsettingꢀ
Outputꢀvoltageꢀtoleranceꢀband
Idlingꢀvoltage
T
refꢀ
=ꢀ+25ꢀ°C,ꢀVInom,ꢀIOmax
%ꢀVO
%ꢀVO
%ꢀVO
mV
dVO
dVO
dVO
dVO
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax
IOꢀ=ꢀ0ꢀA
-3
+3
-2
+2
Lineꢀregulation
VIminꢀ...ꢀVImax,ꢀIOmax
0.01...1.0ꢀxꢀIOmax,ꢀVInom
6
Loadꢀregulation
25
mV
Loadꢀtransientꢀ
recoveryꢀtime
ttr
Loadꢀstepꢀ=ꢀ0.25-0.75-0.25ꢀxꢀIOmax,ꢀ
dI/dtꢀ=ꢀ5ꢀA/µs,ꢀCOꢀ=ꢀ2ꢀxꢀ150ꢀµF,ꢀ
VIꢀ=ꢀ12ꢀV
40
µs
Vtr
Loadꢀtransientꢀvoltage
Temperatureꢀcoefficient
±150
-0.6
7
mV
mV/°C
ms
ms
ms
s
T
refꢀ
=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀIOmax
Tcoeff
ts
Start-upꢀVI onꢀtoꢀ0.9ꢀxꢀVO
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀIOmax,ꢀVInomꢀ
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
ꢀ
tr
Ramp-up,ꢀVI ...ꢀ0.9ꢀxꢀVO
ꢀ
3
tf
Fallꢀtime,ꢀVIꢀtoꢀ0.1ꢀxꢀVO
Fallꢀtime,ꢀVIꢀtoꢀ0.1ꢀxꢀVO
RCꢀshut-downꢀtimeꢀ0.1ꢀxꢀVOꢀ
RCꢀstart-upꢀtimeꢀ0.9ꢀxꢀVOꢀ
RCꢀfallꢀtime,ꢀ0.1ꢀxꢀVOꢀꢀ
Outputꢀcurrent
1
tf
16
1
tRC
tRC
tRC
IO
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
ms
ms
s
7
16
0
16
A
POmax Maxꢀoutputꢀpower
40
19
W
Ilim
VOac
η
Currentꢀlimitingꢀthreshold
T
< Trefmax
A
refꢀ
ꢀ
Outputꢀrippleꢀ
20ꢀHzꢀ...ꢀ5ꢀMHz,ꢀIOmax
IOꢀ=ꢀ0.5ꢀxꢀIOmax,ꢀVOꢀ=ꢀ2.50ꢀV
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ2.50ꢀV
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ2.50ꢀV
IOꢀ=ꢀ(0...ꢀ1)ꢀxꢀIOmax
50
mVp-p
%
Efficiencyꢀ-ꢀ50%ꢀload
Efficiencyꢀ-ꢀ100%ꢀload
PowerꢀDissipation
91.4
90.6
4.1
η
88.1
260
%
P
5.4
340
10
W
d
Fo
Switchingꢀfrequency
Remoteꢀsenseꢀcurrent
StaticꢀinputꢀcurrentꢀVIꢀ=ꢀ8.3ꢀV
300
kHz
mA
A
Isense
II
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ2.50ꢀV
5.3
5
millionꢀ
hours
MTBF
Predictedꢀreliability
1ꢆ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Adjusted to ꢀ.ꢃ Vout - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµF
Efficiency
Power Dissipation
<ꢀ>
[W ]
ꢃꢀꢀ
ꢅ
ꢇ
ꢈꢇ
ꢈꢀ
ꢀꢁꢂꢃ7
ꢁ
ꢆ
ꢄ
ꢃ
ꢀ
ꢄꢅꢃ7
ꢄꢆꢃ7
ꢄꢇꢃ7
ꢂꢇ
ꢂꢀ
ꢆꢇ
ꢁꢂꢃꢄ7
ꢅꢆꢄ7
ꢅꢇꢄ7
ꢅꢈꢄ7
[A]
ꢃꢅ
ꢀ
ꢁ
ꢂ
ꢃꢄ
ꢃꢅ
<">
ꢀ
ꢁ
ꢂ
ꢃꢄ
Efficiencyꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀTrefꢀ=ꢀ+25ꢀ°C
Dissipatedꢀpowerꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀꢀ
refꢀ=ꢀ+25ꢀ°C
T
Output Current Derating at 1ꢀ V input
Output Characteristic
<">
ꢈꢁ
[V]
ꢄꢆꢉ
ꢆꢂ
ꢄꢆꢅ
ꢆꢈ
ꢄꢆꢈ
ꢉꢊꢁꢋNꢌTꢋꢍꢂꢁꢁꢋMGNꢎꢋꢋ
ꢈꢊꢀꢋNꢌTꢋꢍꢀꢁꢁꢋMGNꢎ
ꢈꢊꢁꢋNꢌTꢋꢍꢇꢁꢁꢋMGNꢎ
ꢆꢊꢀꢋNꢌTꢋꢍꢉꢁꢁꢋMGNꢎ
ꢆꢊꢁꢋNꢌTꢋꢍꢈꢁꢁꢋMGNꢎ
/BUꢊꢋ$POWꢊ
ꢄ
ꢇ
ꢁ
ꢀꢁꢂꢃ7
ꢄꢅꢃ7
ꢄꢆꢃ7
ꢄꢇꢃ7
ꢄꢆꢁ
ꢄꢆꢇ
ꢀ
ꢁ
ꢂ
ꢃꢄ
ꢃꢅ
[A]
ꢀꢁ
ꢂꢁ
ꢃꢁ
ꢄꢁ
ꢅꢁ
ꢆꢁꢁ
ꢆꢆꢁ
<«$>
Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ12ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ30.
Outputꢀvoltageꢀvs.ꢀloadꢀcurrent.ꢀ
Start-Up
Turn Off
Turn-offꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀ
Vinꢀ=ꢀ12ꢀV.ꢀTurn-offꢀenabledꢀbyꢀdisconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(10ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
Start-upꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ12ꢀV.ꢀStartꢀenabledꢀbyꢀconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(10ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
1ꢇ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Adjusted to ꢀ.ꢃ Vout - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµF
Output Ripple
Transient
Outputꢀvoltageꢀrippleꢀ(20ꢀmV/div.)ꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀ
Vinꢀ=ꢀ12ꢀV,ꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀload.ꢀ
Bandꢀwidthꢀ=ꢀ5ꢀMHz.ꢀ
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀꢀ=ꢀ+25ꢀ°C,ꢀVinꢀ=ꢀ12ꢀV.ꢀdI/dtꢀ=ꢀ5ꢀA/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
Timeꢀscale:ꢀ2ꢀµs/div.
ꢀ0
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Output
Adjusted to ꢁ.ꢁ Vout - Data
Trefꢀ=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀVIꢀ=ꢀ8.3ꢀ...16ꢀVꢀunlessꢀotherwiseꢀspecified.ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµFꢀ
Typꢀvaluesꢀspecifiedꢀat:ꢀT ꢀ=ꢀ+25ꢀ°CꢀandꢀVInom.ꢀIOmaxꢀ=ꢀ16ꢀA.ꢀNote:ꢀ+Senseꢀconnectedꢀtoꢀ+Out.ꢀRadjꢀ3.122ꢀkΩ
ref
Characteristics
Conditions
Unit
min
-2
typ
max
+2
dVOi
Outputꢀvoltageꢀadjustedꢀsettingꢀ
Outputꢀvoltageꢀtoleranceꢀband
Idlingꢀvoltage
T
refꢀ
=ꢀ+25ꢀ°C,ꢀVInom,ꢀIOmax
%ꢀVO
%ꢀVO
%ꢀVO
mV
dVO
dVO
dVO
dVO
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax
IOꢀ=ꢀ0ꢀA
-3
+3
-2
+2
Lineꢀregulation
VIminꢀ...ꢀVImax,ꢀIOmax
IOꢀ=ꢀ0.01...IOmax,ꢀVInom
6
Loadꢀregulation
25
mV
Loadꢀtransientꢀ
recoveryꢀtime
ttr
Loadꢀstepꢀ=ꢀ0.25-0.75-0.25ꢀxꢀIOmax,ꢀ
dI/dtꢀ=ꢀ5ꢀA/µs,ꢀCOꢀ=ꢀ2ꢀxꢀ150ꢀµF,ꢀ
VIꢀ=ꢀ12ꢀV
40
µs
Vtr
Loadꢀtransientꢀvoltage
Temperatureꢀcoefficient
±150
-0.6
7
mV
mV/°C
ms
ms
ms
s
T
refꢀ
=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀIOmax
Tcoeff
ts
Start-upꢀVI onꢀtoꢀ0.9ꢀxꢀVO
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀIOmax,ꢀVInomꢀ
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
ꢀ
tr
Ramp-up,ꢀVI ...ꢀ0.9ꢀxꢀVO
ꢀ
3
tf
Fallꢀtime,ꢀVIꢀtoꢀ0.1ꢀxꢀVO
Fallꢀtime,ꢀVIꢀtoꢀ0.1ꢀxꢀVO
RCꢀshut-downꢀtimeꢀ0.1ꢀxꢀVOꢀ
RCꢀstart-upꢀtimeꢀ0.9ꢀxꢀVOꢀ
RCꢀfallꢀtime,ꢀ0.1ꢀxꢀVOꢀ
Outputꢀcurrent
1
tf
17
1
tRC
tRC
tRC
IO
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
ms
ms
s
7
17
0
16
A
POmax Maxꢀoutputꢀpower
52.8
19
W
Ilim
VOac
η
Currentꢀlimitingꢀthreshold
T
< Trefmax
A
refꢀ
ꢀ
Outputꢀrippleꢀ
20ꢀHzꢀ...ꢀ5ꢀMHz,ꢀIOmax
IOꢀ=ꢀ0,5ꢀxꢀIOmax,ꢀVOꢀ=ꢀ3.30ꢀV
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ3.30ꢀV
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ3.30ꢀV
IOꢀ=ꢀ(0...ꢀ1)ꢀxꢀIOmax
50
mVp-p
%
Efficiencyꢀ-ꢀ50%ꢀload
Efficiencyꢀ-ꢀ100%ꢀload
PowerꢀDissipation
92.8
92.3
4.3
η
90.1
260
%
P
5.8
340
10
W
d
Fo
Switchingꢀfrequency
Remoteꢀsenseꢀcurrent
StaticꢀinputꢀcurrentꢀVIꢀ=ꢀ8.3ꢀV
300
kHz
mA
A
Isense
II
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ3.30ꢀV
6.9
5
millionꢀ
hours
MTBF
Predictedꢀreliability
ꢀ1
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Adjusted to ꢁ.ꢁ Vout - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµFꢀ
Efficiency
Power Dissipation
<ꢀ>
<8>
ꢅ
ꢃꢀꢀ
ꢇ
ꢈꢇ
ꢂꢈꢆꢉ7
ꢃꢄꢉ7
ꢃꢁꢉ7
ꢃꢅꢉ7
ꢁ
ꢆ
ꢄ
ꢃ
ꢀ
ꢈꢀ
ꢁꢂꢃꢄ7
ꢅꢆꢄ7
ꢅꢇꢄ7
ꢅꢈꢄ7
ꢂꢇ
ꢂꢀ
ꢆꢇ
ꢃꢅ
<">
ꢀ
ꢁ
ꢂ
ꢃꢄ
ꢁ
ꢂ
<">
ꢃꢅ
ꢀ
ꢃꢄ
Efficiencyꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀTrefꢀ=ꢀ+25ꢀ°C
Dissipatedꢀpowerꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀꢀ
refꢀ=ꢀ+25ꢀ°C
T
Output Current Derating at 1ꢀ V input
Output Characteristic
<">
ꢈꢁ
<7>
ꢆꢇꢈ
ꢆꢂ
ꢆꢇꢁ
ꢆꢇꢆ
ꢆꢈ
ꢉꢊꢁꢋNꢌTꢋꢍꢂꢁꢁꢋMGNꢎꢋꢋ
ꢈꢊꢀꢋNꢌTꢋꢍꢀꢁꢁꢋMGNꢎ
ꢈꢊꢁꢋNꢌTꢋꢍꢇꢁꢁꢋMGNꢎ
ꢆꢊꢀꢋNꢌTꢋꢍꢉꢁꢁꢋMGNꢎ
ꢆꢊꢁꢋNꢌTꢋꢍꢈꢁꢁꢋMGNꢎ
/BUꢊꢋ$POWꢊ
ꢄ
ꢇ
ꢁ
ꢀꢁꢂꢃ7
ꢄꢅꢃ7
ꢄꢆꢃ7
ꢆꢇꢄ
ꢄꢇꢃ7
ꢆꢇꢃ
ꢃꢅ
ꢁ
ꢀ
ꢂ
ꢃꢄ
<">
ꢀꢁ
ꢂꢁ
ꢃꢁ
ꢄꢁ
ꢅꢁ
ꢆꢁꢁ
ꢆꢆꢁ
<«$>
Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ12ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ30.
Outputꢀvoltageꢀvs.ꢀloadꢀcurrent.ꢀ
Start-Up
Turn Off
Turn-offꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ12ꢀV.ꢀTurn-offꢀenabledꢀbyꢀdisconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(10ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
Start-upꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀꢀ=ꢀ+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ12ꢀV.ꢀStartꢀenabledꢀbyꢀconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(1ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(10ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
ꢀꢀ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Adjusted to ꢁ.ꢁ Vout - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµF
Output Ripple
Transient
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀVinꢀ=ꢀ12ꢀV.ꢀdI/dtꢀ=ꢀ5ꢀA/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
Outputꢀvoltageꢀrippleꢀ(20ꢀmV/div.)ꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀ
Vinꢀ=ꢀ12ꢀV,ꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀload.ꢀ
Bandꢀwidthꢀ=ꢀ5ꢀMHz.ꢀ
Timeꢀscale:ꢀ2ꢀµs/div.
ꢀꢁ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Output
Adjusted to ꢃ.0 Vout - Data
Trefꢀ=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀVIꢀ=ꢀ8.3ꢀ...16ꢀVꢀunlessꢀotherwiseꢀspecified.ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµFꢀ
Typꢀvaluesꢀspecifiedꢀat:ꢀT ꢀ=ꢀ+25ꢀ°CꢀandꢀVInom.ꢀIOmaxꢀ=ꢀ16ꢀA.ꢀNote:ꢀ+Senseꢀconnectedꢀtoꢀ+Out.ꢀRadjꢀ1.472ꢀkΩ
ref
Characteristics
Conditions
Unit
min
-2
typ
max
+2
dVOi
Outputꢀvoltageꢀadjustedꢀsettingꢀ
Outputꢀvoltageꢀtoleranceꢀband
Idlingꢀvoltage
T
refꢀ
=ꢀ+25ꢀ°C,ꢀVInom,ꢀIOmax
%ꢀVO
%ꢀVO
%ꢀVO
mV
dVO
dVO
dVO
dVO
IOꢀ=ꢀ0.01...1.0ꢀxꢀIOmax
IOꢀ=ꢀ0ꢀA
-3
+3
-2
+2
Lineꢀregulation
VIminꢀ...ꢀVImax,ꢀIOmax
0.01...1.0ꢀxꢀIOmax,ꢀVInom
12
25
Loadꢀregulation
mV
Loadꢀtransientꢀ
recoveryꢀtime
ttr
Loadꢀstepꢀ=ꢀ0.25-0.75-0.25ꢀxꢀIOmax,ꢀ
dI/dtꢀ=ꢀ5ꢀA/µs,ꢀCOꢀ=ꢀ2ꢀxꢀ150ꢀµF,ꢀ
VIꢀ=ꢀ12ꢀVꢀ
40
µs
Vtr
Loadꢀtransientꢀvoltage
Temperatureꢀcoefficient
±150
-0.6
7
mV
mV/°C
ms
ms
ms
s
T
refꢀ
=ꢀ-30ꢀ...ꢀ+90ꢀ°C,ꢀIOmax
Tcoeff
ts
Start-upꢀVI onꢀtoꢀ0.9ꢀxꢀVO
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀIOmax,ꢀVInomꢀ
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
ꢀ
tr
Ramp-up,ꢀVI ...ꢀ0.9ꢀxꢀVO
ꢀ
3
tf
Fallꢀtime,ꢀVIꢀtoꢀ0.1ꢀxꢀVO
Fallꢀtime,ꢀVIꢀtoꢀ0.1ꢀxꢀVO
RCꢀshut-downꢀtimeꢀ0.1ꢀxꢀVOꢀ
RCꢀstart-upꢀtimeꢀ0.9ꢀxꢀVO
RCꢀfallꢀtime,ꢀ0.1ꢀxꢀVOꢀ
Outputꢀcurrent
1
tf
16
1
tRC
tRC
tRC
IO
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀIOmax,ꢀVInom
IOꢀ=ꢀ0ꢀA,ꢀVInom
ms
ms
s
7
15
0
16
A
POmax Maxꢀoutputꢀpower
80
19
W
Ilim
VOac
η
Currentꢀlimitingꢀthreshold
T
< Trefmax
A
refꢀ
ꢀ
Outputꢀripple
20ꢀHzꢀ...ꢀ5ꢀMHz,ꢀIOmax
IOꢀ=ꢀ0.5ꢀxꢀIOmax,ꢀVOꢀ=ꢀ3.30ꢀV
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ3.30ꢀV
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ3.30ꢀV
IOꢀ=ꢀ(0...ꢀ1)ꢀxꢀIOmax
50
mVp-p
%
Efficiencyꢀ-ꢀ50%ꢀload
Efficiencyꢀ-ꢀ100%ꢀload
PowerꢀDissipation
94.5
94.3
4.8
η
91.0
260
%
P
7.9
340
10
W
d
Fo
Switchingꢀfrequency
Remoteꢀsenseꢀcurrent
StaticꢀinputꢀcurrentꢀVIꢀ=ꢀ8.3ꢀV
300
kHz
mA
A
Isense
II
IOꢀ=ꢀIOmax,ꢀVOꢀ=ꢀ3.30ꢀV
10.2
5
millionꢀ
hours
MTBF
Predictedꢀreliability
ꢀꢂ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Adjusted to ꢃ.0 Vout - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµFꢀ
Efficiency
Power Dissipation
<ꢀ>
<8>
ꢄ
ꢃꢀꢀ
ꢉ
ꢈꢇ
ꢈꢊꢂꢋ7
ꢇꢃꢋ7
ꢇꢅꢋ7
ꢅ
ꢈꢀ
ꢁꢂꢃꢄ7
ꢅꢆꢄ7
ꢅꢇꢄ7
ꢇꢄꢋ7
ꢂ
ꢂꢇ
ꢅꢈꢄ7
ꢃ
ꢇ
ꢀ
ꢂꢀ
ꢆꢇ
ꢀꢁꢀ
ꢂꢁꢃ
ꢄꢁꢅ
ꢆꢁꢄ
ꢇꢃꢁꢈ
ꢇꢄꢁꢀ
<">
ꢁ
ꢂ
ꢀ
ꢃꢄ
ꢃꢅ <">
Efficiencyꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀTrefꢀ=ꢀ+25ꢀ°C
Dissipatedꢀpowerꢀvs.ꢀloadꢀcurrentꢀandꢀinputꢀvoltageꢀatꢀꢀ
refꢀ=ꢀ+25ꢀ°C
T
Output Current Derating at 1ꢀ V input
Output Characteristic
<">
ꢈꢁ
<7>
ꢈꢆꢄ
ꢆꢂ
ꢆꢈ
ꢈꢆꢃ
ꢈꢆꢀ
ꢉꢊꢁꢋNꢌTꢋꢍꢂꢁꢁꢋMGNꢎꢋꢋ
ꢈꢊꢀꢋNꢌTꢋꢍꢀꢁꢁꢋMGNꢎ
ꢄ
ꢀꢁꢂꢃ7
ꢈꢊꢁꢋNꢌTꢋꢍꢇꢁꢁꢋMGNꢎ
ꢆꢊꢀꢋNꢌTꢋꢍꢉꢁꢁꢋMGNꢎ
ꢆꢊꢁꢋNꢌTꢋꢍꢈꢁꢁꢋMGNꢎ
/BUꢊꢋ$POWꢊ
ꢄꢅꢃ7
ꢄꢆꢃ7
ꢄꢇꢃ7
ꢁꢆꢇ
ꢁꢆꢂ
ꢇ
ꢁ
ꢃꢅ
ꢁ
ꢃꢄ
ꢀ
ꢂ
<">
ꢀꢁ
ꢂꢁ
ꢃꢁ
ꢄꢁ
ꢅꢁ
ꢆꢁꢁ
ꢆꢆꢁ
<«$>
Availableꢀloadꢀcurrentꢀvs.ꢀambientꢀairꢀtemperatureꢀandꢀ
airflowꢀatꢀVinꢀ=ꢀ12ꢀV.ꢀSeeꢀconditionsꢀonꢀpageꢀ30.ꢀ
Outputꢀvoltageꢀvs.ꢀloadꢀcurrent.ꢀ
Start-Up
Turn Off
Turn-offꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ12ꢀV.ꢀTurn-offꢀenabledꢀbyꢀdisconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(2ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(10ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
Start-upꢀatꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀloadꢀatꢀTrefꢀꢀ=ꢀ+25ꢀ°C,ꢀꢀ
Vinꢀ=ꢀ12ꢀV.ꢀStartꢀenabledꢀbyꢀconnectingꢀVin.ꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(2ꢀV/div.).ꢀ
Bottomꢀtrace:ꢀinputꢀvoltageꢀ(10ꢀV/div.).ꢀ
Timeꢀscale:ꢀ2ꢀms/div.
ꢀꢃ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
Adjusted to ꢃ.0 Vout - Typical Characteristics
Generalꢀconditions:ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀµF,ꢀOutputꢀfilterꢀ2ꢀxꢀ150ꢀµF
Output Ripple
Transient
Outputꢀvoltageꢀresponseꢀtoꢀloadꢀcurrentꢀstep-changeꢀ
(4-12-4ꢀA)ꢀatꢀTrefꢀ=+25ꢀ°C,ꢀVinꢀ=ꢀ12ꢀV.ꢀdI/dtꢀ=ꢀ5ꢀA/µsꢀ
Topꢀtrace:ꢀoutputꢀvoltageꢀ(ac)ꢀ(100ꢀmV/div.).ꢀ
Bottomꢀtrace:ꢀloadꢀcurrentꢀ(dc)ꢀ(10ꢀA/div.)ꢀ
Timeꢀscale:ꢀ0.1ꢀms/div.
Outputꢀvoltageꢀrippleꢀ(20ꢀmV/div.)ꢀatꢀTrefꢀ=ꢀ+25ꢀ°C,ꢀ
Vinꢀ=ꢀ12ꢀV,ꢀIOꢀ=ꢀ16ꢀAꢀresistiveꢀload.ꢀ
Bandꢀwidthꢀ=ꢀ5ꢀMHz.ꢀ
Timeꢀscale:ꢀ2ꢀµs/div.
ꢀꢄ
ꢀꢀꢀꢀꢀꢀEN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
EMC Specification
TheꢀconductedꢀEMIꢀmeasurementꢀwasꢀperformedꢀusingꢀaꢀ
regulatorꢀplacedꢀdirectlyꢀonꢀtheꢀtestꢀbench.ꢀTheꢀfundamentalꢀ
switchingꢀfrequencyꢀforꢀPMBꢀ8000ꢀisꢀ300ꢀkHz.ꢀTheꢀmeasure-
mentꢀbelowꢀhasꢀbeenꢀperformedꢀwithꢀVinꢀ=ꢀ12ꢀV,ꢀVoutꢀ=ꢀ5ꢀVꢀ
andꢀmaxꢀload.ꢀInputꢀfilterꢀ4ꢀxꢀ4.7ꢀmFꢀandꢀoutputꢀfilterꢀ2ꢀxꢀ150ꢀ
mFꢀwasꢀusedꢀduringꢀtheꢀmeasurement.ꢀ
Layout Recommendation
TheꢀradiatedꢀEMIꢀperformanceꢀofꢀtheꢀDC/DCꢀregulatorꢀwillꢀ
beꢀoptimisedꢀbyꢀincludingꢀaꢀgroundꢀplaneꢀinꢀtheꢀPCBꢀareaꢀ
underꢀtheꢀDC/DCꢀregulator.ꢀThisꢀapproachꢀwillꢀreturnꢀswitch-
ingꢀnoiseꢀtoꢀgroundꢀasꢀdirectlyꢀasꢀpossible,ꢀwithꢀimprove-
mentsꢀtoꢀbothꢀemissionsꢀandꢀsusceptibility.ꢀ
Conducted EMIꢀInputꢀterminalꢀvalueꢀ(typ)
Output ripple and noise
Theꢀcircuitꢀbelowꢀhasꢀbeenꢀusedꢀforꢀtheꢀrippleꢀandꢀnoiseꢀ
measurementsꢀonꢀtheꢀPMBꢀ8000ꢀSeriesꢀDC/DCꢀregulators.ꢀ
Level [dBµA]
100
80
60
40
20
-PXꢀ&43ꢀ1PMZNFS
$BQBDJUPS
ꢁ7PVU
ꢁ4FOTF
ꢁ
-PBE
ꢊYꢆꢄꢅꢀM
5SJN
0
(/%
#/$
$POOFDUPS
UPꢀ4DPQF
-10
150k 300k 500k
1M
2M 3M
5M 7M 10M
30M
Frequency [Hz]
ꢂꢀ$POEVDUPSꢀGSPNꢀ7PVUꢀUPꢀDBQBDJUPSTꢀꢃꢀꢄꢅꢀNNꢀ<ꢆꢇꢈꢉꢀJO>
PMB 8818.
Output ripple and noise test setup
$PNQVUFS
&.$ꢀ3FDJWFS
ꢁꢂꢀ¬'
1SJOUFEꢀ$JSDVUꢀ#PBSE
1PXFSꢀ
3FHVMBUPS
ꢄ
ꢅ
%$ꢀ
1PXFSꢀ
4PVSDF
3FTJTUJWFꢀ
-PBE
ꢁꢂꢀDN
ꢃꢀDN
Test set up.
EN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
ꢀꢅ
Operating Information
Turn off input voltage
Output Voltage Adjust (Vadj
)
TheꢀPMBꢀ8000ꢀSeriesꢀDC/DCꢀregulatorsꢀmonitorꢀtheꢀinputꢀ
voltageꢀandꢀwillꢀturnꢀonꢀandꢀturnꢀoffꢀatꢀpredeterminedꢀlevels.ꢀ
Theꢀminimumꢀhysteresisꢀbetweenꢀturnꢀonꢀandꢀturnꢀoffꢀinputꢀ
voltageꢀisꢀ0.2ꢀVꢀwhereꢀtheꢀturnꢀonꢀinputꢀvoltageꢀisꢀtheꢀhigh-
est.
AllꢀPMBꢀ8000ꢀSeriesꢀDC/DCꢀregulatorsꢀhaveꢀanꢀOutputꢀ
Voltageꢀadjustꢀpinꢀ(Vadj).ꢀThisꢀpinꢀcanꢀbeꢀusedꢀtoꢀadjustꢀtheꢀ
outputꢀvoltageꢀaboveꢀoutputꢀvoltageꢀinitialꢀsettingꢀ(0.75ꢀV).ꢀ
Whenꢀincreasingꢀtheꢀoutputꢀvoltageꢀtheꢀmaximumꢀpowerꢀ
ratingꢀofꢀtheꢀconverterꢀremainsꢀtheꢀsame,ꢀandꢀtheꢀoutputꢀ
currentꢀcapabilityꢀwillꢀthereforeꢀdecreaseꢀcorrespondingly.ꢀ
Toꢀincreaseꢀtheꢀoutputꢀvoltageꢀaꢀresistorꢀorꢀaꢀvoltageꢀsignalꢀ
shouldꢀbeꢀconnected/appliedꢀbetweenꢀVadjꢀpinꢀandꢀGND,ꢀ
pinꢀ5.ꢀTheꢀresistor/voltageꢀsignalꢀvalueꢀforꢀsomeꢀstandardꢀ
outputꢀtrimsꢀareꢀgivenꢀbelow,ꢀforꢀotherꢀvoltageꢀsetꢀpointsꢀ
useꢀtheꢀformulasꢀtoꢀcalculateꢀtheꢀcorrectꢀresistorꢀorꢀvoltageꢀ
signal.ꢀForꢀoutputꢀvoltagesꢀofꢀ5.25ꢀVꢀandꢀhigherꢀtheꢀinputꢀ
voltageꢀisꢀrestrictedꢀtoꢀmaximumꢀ14ꢀVin.
Remote Control (RC)
StandardꢀVersionꢀwithꢀ"positiveꢀlogic".
TheꢀRCꢀpinꢀmayꢀbeꢀusedꢀtoꢀturnꢀonꢀorꢀturnꢀoffꢀtheꢀregulatorꢀ
usingꢀaꢀsuitableꢀopenꢀcollectorꢀfunction.ꢀTurnꢀoffꢀisꢀachievedꢀ
byꢀconnectingꢀtheꢀRCꢀpinꢀtoꢀground.ꢀTheꢀregulatorꢀwillꢀrunꢀinꢀ
normalꢀoperationꢀwhenꢀtheꢀRCꢀpinꢀisꢀleftꢀopen.ꢀ
Regulatorꢀ
condition
RC
min
typ
max
Unit
Formulaꢀ1:ꢀꢀRadjꢀ=ꢀ(10ꢀ500ꢀ/ꢀ(Voutꢀ–ꢀ0.7525))ꢀ–ꢀ1000ꢀ(ohm)
Formulaꢀ2:ꢀꢀVtrimꢀ=ꢀꢀ(0.7ꢀ–ꢀ0.0667ꢀxꢀ(Voutꢀ–ꢀ0.7525))ꢀ(V)
Lowꢀlevelꢀ
OFF
-0.3
1.7
0.3
16
V
V
referencedꢀtoꢀGND
Open
ON
Voutꢀ(V)
0.75
1.0
Radjꢀ(kohm)
Open
Vtrimꢀ(V)
Open
0.684
0.670
0.650
0.630
0.583
0.530
0.417
0.383
+IN
41.42ꢀ
22.46ꢀ
13.05ꢀ
9.024ꢀ
5.009ꢀ
3.122ꢀ
1.472ꢀ
1.212
1.2
+IN
1.5
RC
1.8
Module
2.5
GND
3.3
5.00
5.50
Optionꢀ"negativeꢀlogic"
TheꢀRCꢀpinꢀmayꢀbeꢀusedꢀtoꢀturnꢀonꢀorꢀturnꢀoffꢀtheꢀregulatorꢀ
usingꢀaꢀsuitableꢀopenꢀcollectorꢀfunction.Turnꢀoffꢀisꢀachievedꢀ
byꢀconnectingꢀtheꢀRCꢀpinꢀtoꢀtheꢀinputꢀvoltage.ꢀTheꢀregulatorꢀ
willꢀrunꢀinꢀnormalꢀoperationꢀwhenꢀtheꢀRCꢀpinꢀisꢀleftꢀopen.ꢀ
ꢀ0VU
+Out
4FOTF
Sense
Regulatorꢀ
condition
RC
min
1.7
typ
max
16
Unit
V
-PBE
Load
7
V
BEK
adj
Highꢀlevelꢀ
ꢀ
ꢁ
OFF
referencedꢀtoꢀGND
R
adj
Open
ON
(/%
GND
Circuitꢀconfigurationꢀforꢀoutputꢀvoltageꢀadjust
V
i
V
i
RC
Input Voltage
Theꢀinputꢀvoltageꢀrangeꢀ8.3…16ꢀVdcꢀmakesꢀtheꢀPMBꢀ8000ꢀ
easyꢀtoꢀuseꢀinꢀintermediateꢀbusꢀapplicationsꢀwhenꢀpow-
eredꢀbyꢀaꢀnon-regulatedꢀbusꢀconverterꢀorꢀaꢀregulatedꢀbusꢀ
converter.ꢀForꢀoutputꢀvoltageꢀtrimsꢀoverꢀ5.25ꢀVoutꢀtheꢀinputꢀ
voltageꢀmustꢀbeꢀreducedꢀtoꢀaꢀmaximumꢀofꢀ14ꢀVꢀinꢀorderꢀtoꢀ
maintainꢀspecifiedꢀdata.
Module
GND
EN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
ꢀꢆ
Operating Information
Remote Sense
OptionalꢀInputꢀFilter
Toꢀminimizeꢀinputꢀrippleꢀandꢀtoꢀensureꢀevenꢀbetterꢀstabilityꢀ
moreꢀcapacitorsꢀcanꢀbeꢀadded,ꢀseeꢀtableꢀbelow.ꢀ
Considerꢀtheꢀmaxꢀoutputꢀpowerꢀinꢀaꢀgivenꢀapplicationꢀandꢀ
chooseꢀsufficientꢀcapacitorsꢀtoꢀobtainꢀdesiredꢀrippleꢀlevel.ꢀ
Makeꢀsureꢀthatꢀtheꢀextraꢀcapacitorsꢀareꢀplacedꢀnearꢀtheꢀinputꢀ
pins.ꢀTheꢀtableꢀbelowꢀisꢀjustꢀanꢀexampleꢀsinceꢀtheꢀboardꢀ
layoutꢀalsoꢀhasꢀeffectꢀonꢀtheꢀresult.
AllꢀPMBꢀ8000ꢀSeriesꢀDC/DCꢀregulatorsꢀhaveꢀaꢀpositiveꢀre-
moteꢀsenseꢀpinꢀthatꢀcanꢀbeꢀusedꢀtoꢀcompensateꢀforꢀmoder-
ateꢀamountsꢀofꢀresistanceꢀinꢀtheꢀdistributionꢀsystemꢀandꢀal-
lowꢀforꢀvoltageꢀregulationꢀatꢀtheꢀloadꢀorꢀotherꢀselectedꢀpoint.ꢀ
Theꢀremoteꢀsenseꢀlineꢀwillꢀcarryꢀveryꢀlittleꢀcurrentꢀandꢀdoesꢀ
notꢀneedꢀaꢀlargeꢀcrossꢀsectionalꢀarea.ꢀHowever,ꢀtheꢀsenseꢀ
lineꢀonꢀtheꢀPCBꢀshouldꢀbeꢀlocatedꢀcloseꢀtoꢀaꢀgroundꢀtraceꢀorꢀ
groundꢀplane.ꢀTheꢀremoteꢀsenseꢀcircuitryꢀwillꢀcompensateꢀforꢀ
upꢀtoꢀ10%ꢀvoltageꢀdropꢀbetweenꢀtheꢀsenseꢀvoltageꢀandꢀtheꢀ
voltageꢀatꢀtheꢀoutputꢀpinsꢀfromꢀVOnom.ꢀIfꢀtheꢀremoteꢀsenseꢀisꢀ
notꢀneededꢀtheꢀsenseꢀpinꢀshouldꢀbeꢀleftꢀopenꢀorꢀconnectedꢀ
toꢀtheꢀpositiveꢀoutput.
Desiredꢀinputꢀrippleꢀ(mVp-p
)
Outputꢀpower
150
250
500
-----
0-20ꢀW
20-40ꢀW
40-60ꢀW
60-80ꢀW
2ꢀxꢀ4.7ꢀµFꢀ
5ꢀxꢀ4.7ꢀµF
8ꢀxꢀ4.7ꢀµF
11ꢀxꢀ4.7ꢀµF
-----
2ꢀxꢀ4.7ꢀµF
4ꢀxꢀ4.7ꢀµF
7ꢀxꢀ4.7ꢀµF
-----
2ꢀxꢀ4.7ꢀµF
4ꢀxꢀ4.7ꢀµF
Current Limit Protection
Note:ꢀAllꢀoutputꢀcharacteristicsꢀinꢀtheꢀdatasheetꢀareꢀmeasuredꢀwithꢀ4ꢀxꢀ4.7ꢀµFꢀatꢀtheꢀinputꢀpins.
TheꢀPMBꢀ8000ꢀSeriesꢀDC/DCꢀregulatorsꢀincludeꢀcurrentꢀ
limitingꢀcircuitryꢀthatꢀallowsꢀthemꢀtoꢀwithstandꢀcontinuousꢀ
overloadsꢀorꢀshortꢀcircuitꢀconditionsꢀonꢀtheꢀoutput.ꢀTheꢀout-
putꢀvoltageꢀwillꢀdecreaseꢀtowardsꢀzeroꢀforꢀoutputꢀcurrentsꢀinꢀ
excessꢀofꢀmaxꢀoutputꢀcurrentꢀ(Iomax).ꢀWhenꢀtheꢀcurrentꢀlimitꢀ
isꢀreachedꢀtheꢀregulatorꢀwillꢀgoꢀintoꢀhiccupꢀmode.ꢀTheꢀcur-
rentꢀlimitꢀisꢀtemperatureꢀdependent,ꢀi.e.ꢀtheꢀlimitꢀdecreaseꢀ
atꢀhigherꢀoperatingꢀtemperature,ꢀtheꢀregulatorꢀisꢀguaranteedꢀ
toꢀstartꢀatꢀIOmaxꢀxꢀ1.25ꢀ@ꢀTrefꢀ115°C.ꢀTheꢀregulatorꢀwillꢀ
resumeꢀnormalꢀoperationꢀafterꢀremovalꢀofꢀtheꢀoverload.ꢀTheꢀ
loadꢀdistributionꢀsystemꢀshouldꢀbeꢀdesignedꢀtoꢀcarryꢀtheꢀ
maximumꢀoutputꢀshortꢀcircuitꢀcurrentꢀspecified.
Requiredꢀoutputꢀfilter
Externalꢀoutputꢀcapacitanceꢀisꢀalsoꢀrequiredꢀtoꢀreduceꢀtheꢀ
outputꢀrippleꢀandꢀtoꢀobtainꢀspecifiedꢀloadꢀstepꢀresponse.ꢀItꢀ
isꢀrecommendedꢀtoꢀuseꢀlowꢀESRꢀpolymerꢀcapacitorsꢀorꢀlowꢀ
ESRꢀceramicꢀcapacitors.ꢀꢀ
Minimumꢀrequirement:
PMBꢀ8818TꢀPꢀ
2ꢀxꢀ150ꢀµF.ꢀ(low ESR polymer type).
This is the output filter used in the verification and needed to
meet the specification.
Maximum Capacitive Load
Over Temperature Protection (OTP)
Whenꢀpoweringꢀloadsꢀwithꢀsignificantꢀdynamicꢀcurrentꢀ
requirements,ꢀtheꢀvoltageꢀregulationꢀatꢀtheꢀloadꢀcanꢀbe
improvedꢀbyꢀadditionꢀofꢀdecouplingꢀcapacitanceꢀatꢀtheꢀload.ꢀ
TheꢀmostꢀeffectiveꢀtechniqueꢀisꢀtoꢀlocateꢀlowꢀESRꢀceramicꢀ
capacitorsꢀasꢀcloseꢀtoꢀtheꢀloadꢀasꢀpossible,ꢀusingꢀseveralꢀ
capacitorsꢀtoꢀlowerꢀtheꢀtotalꢀESR.ꢀTheseꢀceramicꢀcapacitorsꢀ
willꢀhandleꢀshortꢀdurationꢀhigh-frequencyꢀcomponentsꢀ
ofꢀdynamicꢀloadꢀchanges.ꢀInꢀaddition,ꢀhigherꢀvaluesꢀofꢀ
capacitorsꢀ(electrolyticꢀcapacitors)ꢀshouldꢀbeꢀusedꢀtoꢀhandleꢀ
theꢀmid-frequencyꢀcomponents.ꢀItꢀisꢀequallyꢀimportantꢀ
toꢀuseꢀgoodꢀdesignꢀpracticeꢀwhenꢀconfiguringꢀtheꢀDCꢀ
distributionꢀsystem.ꢀ
TheꢀPMBꢀ8000ꢀSeriesꢀDC/DCꢀregulatorsꢀareꢀprotectedꢀfromꢀ
thermalꢀoverloadꢀbyꢀanꢀinternalꢀoverꢀtemperatureꢀshutdownꢀ
circuit.ꢀWhenꢀtheꢀPCBꢀtemperatureꢀnearꢀtheꢀICꢀcircuitꢀreach-
esꢀ130ꢀ°Cꢀtheꢀconverterꢀwillꢀshutꢀdownꢀimmediately.ꢀTheꢀ
regulatorꢀwillꢀmakeꢀcontinuousꢀattemptsꢀtoꢀstartꢀupꢀ(non-
latchingꢀmode)ꢀandꢀresumeꢀnormalꢀoperationꢀautomaticallyꢀ
whenꢀtheꢀtemperatureꢀhasꢀdroppedꢀbelowꢀtheꢀtemperatureꢀ
threshold.
Input And Output Impedance
Theꢀimpedanceꢀofꢀbothꢀtheꢀpowerꢀsourceꢀandꢀtheꢀloadꢀwillꢀ
interactꢀwithꢀtheꢀimpedanceꢀofꢀtheꢀDC/DCꢀregulator.ꢀItꢀisꢀ
mostꢀimportantꢀtoꢀhaveꢀaꢀlowꢀcharacteristicꢀimpedance,ꢀ
bothꢀatꢀtheꢀinputꢀandꢀoutput,ꢀasꢀtheꢀregulatorsꢀhaveꢀaꢀlowꢀ
energyꢀstorageꢀcapability.ꢀUseꢀcapacitorsꢀacrossꢀtheꢀinputꢀifꢀ
theꢀsourceꢀinductanceꢀisꢀgreaterꢀthanꢀ4.7ꢀmH.ꢀSuitableꢀinputꢀ
capacitorsꢀareꢀ22ꢀmFꢀ-ꢀ220ꢀmFꢀlowꢀESRꢀceramics.ꢀ
LowꢀresistanceꢀandꢀlowꢀinductanceꢀPCBꢀlayoutsꢀandꢀ
cablingꢀshouldꢀbeꢀused.ꢀRememberꢀthatꢀwhenꢀusingꢀremoteꢀ
sensing,ꢀallꢀresistanceꢀ(includingꢀtheꢀESR),ꢀinductanceꢀandꢀ
capacitanceꢀofꢀtheꢀdistributionꢀsystemꢀisꢀwithinꢀtheꢀfeedbackꢀ
loopꢀofꢀtheꢀregulator.ꢀThisꢀcanꢀaffectꢀonꢀtheꢀregulatorsꢀ
compensationꢀandꢀtheꢀresultingꢀstabilityꢀandꢀdynamicꢀ
responseꢀperformance.
Minimum Required External Capacitors
RequiredꢀInputꢀFilter
Externalꢀinputꢀcapacitorsꢀareꢀrequiredꢀtoꢀincreaseꢀtheꢀlife-
timeꢀofꢀtheꢀinternalꢀcapacitors.ꢀLowꢀESRꢀceramicsꢀshouldꢀbeꢀ
used,ꢀtheꢀminimumꢀinputꢀcapacitanceꢀisꢀstatedꢀbelow:ꢀꢀꢀꢀ
ꢀꢀ
VeryꢀlowꢀESRꢀandꢀhighꢀcapacitanceꢀmustꢀbeꢀusedꢀwithꢀ
care.ꢀAꢀ“ruleꢀofꢀthumb”ꢀisꢀthatꢀtheꢀtotalꢀcapacitanceꢀmustꢀ
neverꢀexceedꢀtypicallyꢀ500-700ꢀmFꢀifꢀonlyꢀlowꢀESRꢀ(<ꢀ2mΩ)ꢀ
ceramicꢀcapacitorsꢀareꢀused.ꢀIfꢀmoreꢀcapacitanceꢀisꢀneeded,ꢀ
aꢀcombinationꢀofꢀlowꢀESRꢀtypeꢀandꢀelectrolyticꢀcapacitorsꢀ
shouldꢀbeꢀused,ꢀotherwiseꢀtheꢀstabilityꢀwillꢀbeꢀaffected.
PMBꢀ8818TꢀPꢀ 2ꢀxꢀ4.7ꢀmF
EN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
ꢀꢇ
ꢀ
ꢀ
2.ꢀ
Findꢀtheꢀvalueꢀofꢀtheꢀthermalꢀresistanceꢀforꢀeachꢀproductꢀ
ꢀ
ꢀ
ꢀ
inꢀtheꢀdiagramꢀbyꢀusingꢀtheꢀairflowꢀspeedꢀatꢀtheꢀoutputꢀꢀ
sectionꢀofꢀtheꢀconverter.ꢀTakeꢀtheꢀthermalꢀresistanceꢀxꢀꢀ
powerlossꢀtoꢀgetꢀtheꢀtemperatureꢀincrease.
ꢀ
ꢀ
ꢀ
ꢀ
3.ꢀ
ꢀ
Maxꢀallowedꢀcalculatedꢀambientꢀtemperatureꢀis:ꢀMaxꢀꢀ
TrefꢀofꢀDC/DCꢀregulatorꢀ–ꢀtemperatureꢀincrease.
ꢀ
ꢀ
1.ꢀ
Theꢀpowerlossꢀisꢀcalculatedꢀbyꢀusingꢀtheꢀformula
((1/η)ꢀ-ꢀ1)ꢀꢀoutputꢀpowerꢀ=ꢀpowerꢀlosses.ꢀ
ηꢀ ꢀ=ꢀefficiencyꢀofꢀconverter.ꢀE.gꢀ88%ꢀ=ꢀ0.88
TheꢀPMBꢀ8000ꢀseriesꢀregulatorꢀcanꢀacceptꢀupꢀtoꢀ8mFꢀofꢀ
capacitiveꢀloadꢀonꢀtheꢀoutputꢀatꢀfullꢀload.ꢀThisꢀgivesꢀ<500ꢀ
mF/AꢀofꢀIO.ꢀWhenꢀusingꢀthatꢀlargeꢀcapacitanceꢀitꢀisꢀimportantꢀ
toꢀconsiderꢀtheꢀselectionꢀofꢀoutputꢀcapacitors;ꢀtheꢀresultingꢀ
behaviorꢀisꢀaꢀcombinationꢀofꢀtheꢀamountꢀofꢀcapacitanceꢀandꢀ
ESR.
choke
airflow
AꢀcombinationꢀofꢀlowꢀESRꢀandꢀoutputꢀcapacitanceꢀ
exceedingꢀ8mFꢀforꢀPMBꢀ8818ꢀcanꢀcauseꢀtheꢀregulatorꢀintoꢀ
overꢀcurrentꢀprotectionꢀmodeꢀ(hick-up)ꢀdueꢀtoꢀhighꢀstartꢀupꢀ
current.ꢀTheꢀoutputꢀfilterꢀmustꢀthereforeꢀbeꢀdesignedꢀwithoutꢀ
exceedingꢀtheꢀaboveꢀstatedꢀcapacitanceꢀlevelsꢀifꢀtheꢀESRꢀisꢀ
lowerꢀthenꢀ
Test board
30-40ꢀmΩ.
ꢀ
Calculation of ambient temperature
Byꢀusingꢀtheꢀthermalꢀresistanceꢀtheꢀmaximumꢀallowedꢀꢀ
ambientꢀtemperatureꢀcanꢀbeꢀcalculated.ꢀ
Parallel Operation
TheꢀPMBꢀ8000ꢀSeriesꢀDC/DCꢀregulatorsꢀcanꢀbeꢀconnectedꢀ
inꢀparallelꢀwithꢀaꢀcommonꢀinput.ꢀParallelingꢀisꢀaccomplishedꢀ
byꢀconnectingꢀtheꢀoutputꢀvoltageꢀpinsꢀdirectlyꢀandꢀusingꢀ
aꢀloadꢀsharingꢀdeviceꢀonꢀtheꢀinput.ꢀLayoutꢀconsiderationsꢀ
shouldꢀbeꢀmadeꢀtoꢀavoidꢀloadꢀimbalance.ꢀForꢀmoreꢀdetailsꢀ
onꢀparalleling,ꢀpleaseꢀconsultꢀyourꢀlocalꢀapplicationsꢀsupport.ꢀ
Thermal Considerations
General
E.g ꢃ V output at 1 m/s, full load, 1ꢀ V in:
TheꢀPMBꢀ8000ꢀSeriesꢀDC/DCꢀregulatorsꢀareꢀdesignedꢀ
toꢀoperateꢀinꢀaꢀvarietyꢀofꢀthermalꢀenvironments,ꢀhoweverꢀ
sufficientꢀcoolingꢀshouldꢀbeꢀprovidedꢀtoꢀhelpꢀensureꢀreliableꢀ
operation.ꢀHeatꢀisꢀremovedꢀbyꢀconduction,ꢀconvectionꢀandꢀ
radiationꢀtoꢀtheꢀsurroundingꢀenvironment.ꢀIncreasedꢀairflowꢀ
enhancesꢀtheꢀheatꢀtransferꢀviaꢀconvection.ꢀProperꢀcoolingꢀ
canꢀbeꢀverifiedꢀbyꢀmeasuringꢀtheꢀtemperatureꢀ
1ꢀꢀꢀ
A.ꢀ((ꢀꢀꢀꢀꢀꢀꢀꢀ)ꢀ-ꢀ1)ꢀꢀ80ꢀWꢀ=ꢀ5.11ꢀWꢀ
0.94ꢀ
ꢀ
B.ꢀ5.11ꢀWꢀꢀ7.2ꢀ°C/Wꢀ=ꢀ36.8ꢀ°Cꢀ
C.ꢀ115ꢀ°Cꢀ-ꢀ36.8ꢀ°Cꢀ=ꢀmaxꢀambientꢀtemperatureꢀisꢀ78.2ꢀ°Cꢀꢀ
atꢀtheꢀreferenceꢀpointꢀ(T ).
ref
Theꢀrealꢀtemperatureꢀwillꢀbeꢀdependentꢀonꢀseveralꢀfactors,ꢀ
likeꢀPCBꢀsizeꢀandꢀtype,ꢀdirectionꢀofꢀairflow,ꢀairꢀturbulenceꢀ
etc.ꢀItꢀisꢀrecommendedꢀtoꢀverifyꢀtheꢀtemperatureꢀbyꢀtesting.
T
ref
(maxꢀ115ꢀ°C)
<«$ꢉ8>
ꢃꢈ
1
ꢃꢂ
ꢃꢄꢊ7JOꢁꢊꢂꢊ7PVU
ꢃꢄꢊ7JOꢁꢊꢄꢋꢂꢊꢌꢊꢅꢋꢅ7PVU
ꢃꢄ
ꢃꢄꢊ7JOꢁꢊꢃꢋꢀꢊꢌꢃꢋꢈꢊ7PVU
ꢇ
ꢆ
ꢅ
ꢀ
TheꢀPMBꢀ8000ꢀthermalꢀtestingꢀisꢀperformedꢀwithꢀtheꢀ
productꢀmountedꢀonꢀanꢀFR4ꢀboardꢀ254ꢀꢀ254ꢀmmꢀwithꢀ8ꢀ
layersꢀofꢀ35ꢀmmꢀcopper.ꢀAirflowꢀisꢀperpendicularꢀtoꢀtheꢀT ꢀ
ref
ꢀꢁꢀ
ꢀꢁꢂ
ꢃꢁꢀ
ꢃꢁꢂ
ꢄꢁꢀ
ꢄꢁꢂ
ꢅꢁꢀ <NꢉT>
side.
Thermalꢀresistanceꢀvs.ꢀairspeedꢀmeasuredꢀatꢀtheꢀregulator.ꢀꢀ
EN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
ꢁ0
Soldering Information
TheꢀPMBꢀ8000ꢀseriesꢀDC/DCꢀregulatorsꢀareꢀintendedꢀforꢀ
manualꢀorꢀwaveꢀsoldering.ꢀTheꢀplasticꢀbodyꢀofꢀtheꢀpinꢀ
connectorsꢀresistsꢀsolderingꢀheatꢀforꢀlimitedꢀtimeꢀupꢀtoꢀ260ꢀ
°C.ꢀWhenꢀhandꢀsoldering,ꢀcareꢀshouldꢀbeꢀtakenꢀtoꢀavoidꢀ
directꢀcontactꢀbetweenꢀtheꢀhotꢀsolderingꢀironꢀtipꢀandꢀtheꢀ
pinsꢀforꢀmoreꢀthanꢀaꢀfewꢀsecondsꢀinꢀorderꢀtoꢀavoidꢀmeltingꢀ
ofꢀtheꢀplastic.ꢀꢀꢀꢀ
Delivery Package Information
TheꢀPMBꢀ8000ꢀseriesꢀregulatorsꢀareꢀdeliveredꢀinꢀantistaticꢀ
traysꢀwithꢀJedecꢀstandardꢀouterꢀdimensions.ꢀTrayꢀcapacityꢀ
25ꢀpcs.ꢀEachꢀboxꢀcontainsꢀ4ꢀfullꢀtraysꢀandꢀoneꢀemptyꢀthatꢀ
functionsꢀasꢀaꢀlid.ꢀ
Compatibility with RoHS requirements
Theꢀproductsꢀareꢀcompatibleꢀwithꢀtheꢀrelevantꢀclausesꢀ
andꢀrequirementsꢀofꢀtheꢀRoHSꢀdirectiveꢀ2002/95/ECꢀandꢀ
haveꢀaꢀmaximumꢀconcentrationꢀvalueꢀofꢀ0.1%ꢀbyꢀweightꢀ
inꢀhomogeneousꢀmaterialsꢀforꢀlead,ꢀmercury,ꢀhexavalentꢀ
chromium,ꢀPBBꢀandꢀPBDEꢀandꢀofꢀ0.01%ꢀbyꢀweightꢀinꢀ
homogeneousꢀmaterialsꢀforꢀcadmium.
ExemptionsꢀinꢀtheꢀRoHSꢀdirectiveꢀutilizedꢀinꢀEricssonꢀPowerꢀ
Modulesꢀproductsꢀinclude:ꢀꢀ
•ꢀꢀLeadꢀinꢀhighꢀmeltingꢀtemperatureꢀtypeꢀsolderꢀ(usedꢀtoꢀ
solderꢀtheꢀdieꢀinꢀsemiconductorꢀpackages)
•ꢀꢀLeadꢀinꢀglassꢀofꢀelectronicsꢀcomponentsꢀandꢀinꢀelectronicꢀ
ceramicꢀpartsꢀ(e.g.ꢀfillꢀmaterialꢀinꢀchipꢀresistors)
•ꢀꢀLeadꢀasꢀanꢀalloyingꢀelementꢀinꢀcopperꢀalloyꢀcontainingꢀ
upꢀtoꢀ4%ꢀleadꢀbyꢀweightꢀ(usedꢀinꢀconnectionꢀpinsꢀmadeꢀofꢀ
Brassꢀ
Reliability
TheꢀMeanꢀTimeꢀBetweenꢀFailureꢀ(MTBF)ꢀofꢀtheꢀPMBꢀ8000ꢀ
seriesꢀDC/DCꢀregulatorꢀfamilyꢀisꢀcalculatedꢀtoꢀbeꢀgreaterꢀ
thanꢀ5ꢀmillionꢀhoursꢀatꢀfullꢀoutputꢀpowerꢀandꢀaꢀreferenceꢀ
temperatureꢀofꢀ+40ꢀ°CꢀusingꢀTelCordiaꢀSRꢀ332.ꢀꢀ
EN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
ꢁ1
Sales Offices and Contact Information
CompanyꢀHeadquarters
EricssonꢀPowerꢀModulesꢀAB
LMꢀEricssonsꢀvägꢀ30ꢀ
SE-126ꢀ25ꢀꢀStockholmꢀ
Sweden
Italy,ꢀSpainꢀꢀ(Mediterranean)
EricssonꢀPowerꢀModulesꢀAB
ViaꢀCadornaꢀ71ꢀ
20090ꢀVimodroneꢀ(MI)ꢀ
Italy
Phone:ꢀ+46-8-568-69620ꢀ
Fax:ꢀ+46-8-568-69599
Phone:ꢀ+39-02-265-946-07ꢀ
Fax:ꢀ+39-02-265-946-69
China
Japan
EricssonꢀSimtekꢀElectronicsꢀCo.
33ꢀFuhuaꢀRoadꢀ
JiadingꢀDistrictꢀ
Shanghaiꢀ201ꢀ818ꢀ
Chinaꢀ
EricssonꢀPowerꢀModulesꢀABꢀ
KimuraꢀDainiꢀBuilding,ꢀ3ꢀFL.ꢀ
3-29-7ꢀMinami-Oomachi,ꢀShinagawa-kaꢀ
Tokyoꢀ140-0013ꢀ
Japan
Phone:ꢀ+86-21-5990-3258ꢀ
Fax:ꢀ+86-21-5990-0188
Phone:ꢀ+81-3-5733-5107ꢀ
Fax:ꢀ+81-3-5753-5162
NorthꢀandꢀSouthꢀAmericaꢀ
EricssonꢀInc.ꢀPowerꢀModules
6300ꢀLegacyꢀDr.ꢀ
Germany,ꢀAustria
EricssonꢀPowerꢀModulesꢀAB
MühlhauserꢀWegꢀ18ꢀ
85737ꢀIsmaningꢀ
Plano,ꢀTXꢀ75024ꢀ
USA
Germanyꢀ
Phone:ꢀ+1-972-583-5254ꢀ
ꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀꢀ+1-972-583-6910ꢀ
Fax:ꢀ+1-972-583-7839
Phone:ꢀ+49-89-9500-6905ꢀ
Fax:ꢀ+49-89-9500-6911
HongꢀKongꢀ(AsiaꢀPacific)
EricssonꢀLtd.ꢀ
12/F.ꢀDevonꢀHouse
979ꢀKing’sꢀRoadꢀ
QuarryꢀBayꢀ
Allꢀotherꢀcountries
ContactꢀCompanyꢀHeadquartersꢀ
orꢀvisitꢀourꢀwebsite:
www.ericsson.com/powermodules
HongꢀKong
Phone:ꢀ+852-2590-2453ꢀ
Fax:ꢀ+852-2590-7152
Informationꢀgivenꢀinꢀthisꢀdataꢀsheetꢀisꢀbelievedꢀtoꢀbeꢀaccurateꢀandꢀreliable.ꢀꢀ
Noꢀresponsibilityꢀisꢀassumedꢀforꢀtheꢀconsequencesꢀofꢀitsꢀuseꢀnorꢀforꢀanyꢀinfringementꢀ
ofꢀpatentsꢀorꢀotherꢀrightsꢀofꢀthirdꢀpartiesꢀwhichꢀmayꢀresultꢀfromꢀitsꢀuse.ꢀꢀ
Noꢀlicenseꢀisꢀgrantedꢀbyꢀimplicationꢀorꢀotherwiseꢀunderꢀanyꢀpatentꢀorꢀpatentꢀrightsꢀofꢀ
EricssonꢀPowerꢀModules.ꢀTheseꢀproductsꢀareꢀsoldꢀonlyꢀaccordingꢀtoꢀꢀ
EricssonꢀPowerꢀModules’ꢀgeneralꢀconditionsꢀofꢀsale,ꢀunlessꢀotherwiseꢀconfirmedꢀinꢀ
writing.ꢀSpecificationsꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.ꢀ
EN/LZTꢀ146ꢀ066ꢀR2Aꢀ©EricssonꢀPowerꢀModules,ꢀAprilꢀ2007
PMBꢀ8818TꢀPꢀDatasheet
ꢁꢀ
相关型号：
©2020 ICPDF网 联系我们和版权申明