MP103
MP103U 1
MP103
GENERAL DESCRIPTION
The MP103 is a high voltage, high output current
dualchanneloperationalamplierfordrivingcapaci-
tiveloadssuchaspiezodevicesuseininkjet print-
ing applications. The MP103 utilizes proprietary IC’s
combined with discrete semiconductor and passive
elements on a thermally conductive insulated metal
substrate,deliveringveryhighpowerfromacompact
module.The ampliergain isxed at 65 V/V when
thefeedbackpinisconnectedtotheVOUTpin.Internal
compensationprovidesoptimumslewrateandinsures
stability.The only external components required are
thecurrentlimitresistorsRLIM,aseriesisolationresis-
torRSandthepowersupplybypasscapacitors.
FEATURES
♦LowCostIntegratedSolution
♦OutputCurrent>10AWithinSOA
♦InternalPowerDissipation35WPerChannel
♦167V/µSSlewRate
APPLICATIONS
♦PiezoelectricActuationForInkJetPrinter
Nozzles
Power Operational Amplifiers
MP103
EQUIVALENT CIRCUIT DIAGRAM
Feedback A
-Vs
IN_A
+Vaux
+Vs
Out B
IL
Out A
Feedback B
-Vs
+Vs
IL
-Vs
+Vs
IL
-Vs
+Vs
IL
-Vs
+Vs
IL
-Vs
+Vs
IL
IN_B
GND
-5V
Copyright © Apex Microtechnology, Inc. 2012
(All Rights Reserved)
www.apexanalog.com AUG 2012
MP103U REVC
MP103
2 MP103U
Parameter Symbol Min Max Units
SUPPLYVOLTAGE,+VSto−VS+VSto−VS200 V
SUPPLYVOLTAGE,−VS−VS-30 V
SUPPLYVOLTAGE,+VAUX +VAUX 30 V
OUTPUTCURRENT,pk,perChannel(WithinSOA) IO(PK) 15 A
POWERDISSIPATION,internal,EachChannel PD35 W
INPUTVOLTAGE VIN -5 VAUX V
TEMPERATURE,pinsolder,10s 225 °C
TEMPERATURE,junction(Note2) TJ150 °C
TEMPERATURERANGE,storage TS−40 105 °C
CHARACTERISTICS AND SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
Parameter Test Conditions Min Typ Max Units
INPUT (Each Channel)
OFFSETVOLTAGE -6.7 ±2 6.7 mV
OFFSETVOLTAGEvs.temperature Fulltemperaturerange ±2 µV/°C
BIASCURRENT,initial(Note3) -6.6 ±3.3 6.6 µA
INPUTRESISTANCE,DC 300 KΩ
INPUTCAPACITANCE 1.5 pF
INPUTVOLTAGERANGE -3.4 +VAUX-2 V
NOISE f=10KHz 600 nV/√Hz
GAIN (Each Channel)
FIXEDGAIN FeedbackconnectedtoVOUT 63.5 65 66.5 V/V
GAINBANDWIDTH,-3db CL=47nF 230 KHz
POWERBANDWIDTH,130VP-P +VS=145V,-VS=-15V 230 KHz
OUTPUT (Each Channel)
VOLTAGESWING IO=10A +VS-15 +VS-9 V
VOLTAGESWING IO=-5A -VS+15 -VS+14 V
CURRENT,Peak,Source 12 A
SLEWRATE RS=1.0Ω,CL=47nF,VIN≥8VP-P 167 V/µS
POWER SUPPLY (Note4)
VOLTAGE,-VS-7 -15 -20 V
VOLTAGE,+VAUX 24 25 V
VOLTAGE,+VS-VS+20 145 -VS+200 V
CURRENT,quiescent,-VS19 26 mA
CURRENT,quiescent,+VAUX 13.5 15 mA
CURRENT,quiescent,+VS1 5 mA
THERMAL
RESISTANCE,AC,junctiontocase(Note5) Fulltemperaturerange,f≥60Hz 1.5 1.75 °C/W
RESISTANCE,DC,junctiontocase Fulltemperaturerange,f<60Hz 3.1 3.6 °C/W
RESISTANCE,junctiontoair Fulltemperaturerange 12.5 14 °C/W
TEMPERATURERANGE,case 0 70 °C
SPECIFICATIONS
MP103
MP103U 3
NOTES:
1. (AllMin/MaxcharacteristicsandspecicationsareguaranteedovertheSpeciedOperatingCondi-
tions.Typicalperformancecharacteristicsandspecicationsarederivedfrommeasurementstakenat
typicalsupplyvoltagesandTC=25°C).
2. Longtermoperationatthemaximumjunctiontemperaturewillresultinreducedproductlife.Derate
powerdissipationtoachievehighMTTF.
3. Doublesforevery10°Cofcasetemperatureincrease.
4. +VSand−VSdenotethepositiveandnegativesupplyvoltagestotheoutputstages.+VAUXdenotesthe
positivesupplyvoltagetotheinputstages.
5. Ratingappliesiftheoutputcurrentalternatesbetweenbothoutputtransistorsataratefasterthan
60Hz.
TOTAL SUPPLY VOLTAGE, VAUX (V)
INPUT BIAS CURRENT vs. VAUX SUPPLY
NORMALIZED BIAS CURRENT, IB (X)
5 25201510
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
TOTAL SUPPLY VOLTAGE, VAUX (V)
OFFSET VOLTAGE vs. VAUX SUPPLY
NORMALIZED OFSET VOLTAGE, VOS (X)
5 25201510
0
1.2
1.0
0.8
0.6
0.4
0.2
TOTAL SUPPLY VOLTAGE, VSS (V)
OFFSET VOLTAGE vs. VS SUPPLY
NORMALIZED OFSET VOLTAGE, VCS (X)
5 205180155130105805530
0.995
1.035
1.030
1.025
1.020
1.015
1.010
1.005
1.000
CASE TEMPERATURE, T
C
(°C)
INPUT BIAS CURRENT vs. TEMPERATURE
NORMALIZED BIAS CURRENT, IB (X)
0 20 40 60 80-20-40
0.7
1.2
1.1
1.0
0.9
0.8
0.6
1.6
1.5
1.4
1.3
MAX. OUTPUT PULSE DUTY CYCLE
10
100
OUTPUT VOLTAGE, V
O
(V)
MAXIMUM DUTY CYCLE, DC (%)
TC = 25°C
TC = 70°C
100 180160140120
MAX. DC OUTPUT VOLTAGE
100
110
120
130
140
150
CASE TEMPERATURE, T
C
(°C)
DC OUTPUT VOLTAGE, VO (Vdc)
0 755025
CASE TEMPERATURE, TC (°C)
OFFSET VOLTAGE vs. TEMPERATURE
NORMALIZED BIAS CURRENT, IB (X)
0 20 40 60 80-20-40
0.7
1.2
1.1
1.0
0.9
0.8
0.6
QUIESCENT CURRENT
0.96
0.98
1
1.02
1.04
1.06
1.08
1.1
CASE TEMPERATURE, TC (°C)
NORMALIZED QUIESCENT CURRENT, I
Q
(X)
+VS
VAUX
-VS
0 755025-25
FREQUENCY RESPONSE
-20
-10
0
10
20
30
40
50
1K 10K 1M
FREQUENCY, F (Hz)
GAIN, A V (DB)
-180
-150
-120
-90
-60
-30
0
30
PHASE, (°)
100K
CLOAD = 50nF
LEFT SCALE
RIGHT SCALE
OUTPUT VOLTAGE SWING
0
2
4
6
8
10
12
14
16
OUTPUT CURRENT, IO (A)
VOLTAGE DROP FROM SUPPLY (V)
SOURCE
SINK
0 107.552.5
SOA
SUPPLY TO OUTPUT DIFFERENTIAL, V
S
- V
O
(V)
OUTPUT CURRENT FROM +V
S
OR -V
S
(A)
10 1001
1
10 1mS
10mS
SINK DC
SOURCE
DC
POWER DERATING
CASE TEMPERATURE, TC (°C)
INTERNAL POWER DISSIPATION
PER CHANNEL, PD (W)
EACH CHANNEL
0 100755025
0
40
35
30
25
20
15
10
5
TYPICAL PERFORMANCE GRAPHS
MP103
4 MP103U
PIN DESCRIPTIONS
TOTAL SUPPLY VOLTAGE, VAUX (V)
INPUT BIAS CURRENT vs. VAUX SUPPLY
NORMALIZED BIAS CURRENT, IB (X)
5 25201510
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
TOTAL SUPPLY VOLTAGE, VAUX (V)
OFFSET VOLTAGE vs. VAUX SUPPLY
NORMALIZED OFSET VOLTAGE, VOS (X)
5 25201510
0
1.2
1.0
0.8
0.6
0.4
0.2
TOTAL SUPPLY VOLTAGE, VSS (V)
OFFSET VOLTAGE vs. VS SUPPLY
NORMALIZED OFSET VOLTAGE, VCS (X)
5 205180155130105805530
0.995
1.035
1.030
1.025
1.020
1.015
1.010
1.005
1.000
CASE TEMPERATURE, TC (°C)
INPUT BIAS CURRENT vs. TEMPERATURE
NORMALIZED BIAS CURRENT, IB (X)
0 20 40 60 80-20-40
0.7
1.2
1.1
1.0
0.9
0.8
0.6
1.6
1.5
1.4
1.3
MAX. OUTPUT PULSE DUTY CYCLE
10
100
OUTPUT VOLTAGE, V
O
(V)
MAXIMUM DUTY CYCLE, DC (%)
TC = 25°C
TC = 70°C
100 180160140120
MAX. DC OUTPUT VOLTAGE
100
110
120
130
140
150
CASE TEMPERATURE, TC (°C)
DC OUTPUT VOLTAGE, VO (Vdc)
0 755025
CASE TEMPERATURE, TC (°C)
OFFSET VOLTAGE vs. TEMPERATURE
NORMALIZED BIAS CURRENT, IB (X)
0 20 40 60 80-20-40
0.7
1.2
1.1
1.0
0.9
0.8
0.6
QUIESCENT CURRENT
0.96
0.98
1
1.02
1.04
1.06
1.08
1.1
CASE TEMPERATURE, TC (°C)
NORMALIZED QUIESCENT CURRENT, I
Q
(X)
+VS
VAUX
-VS
0 755025-25
FREQUENCY RESPONSE
-20
-10
0
10
20
30
40
50
1K 10K 1M
FREQUENCY, F (Hz)
GAIN, A V (DB)
-180
-150
-120
-90
-60
-30
0
30
PHASE, (°)
100K
CLOAD = 50nF
LEFT SCALE
RIGHT SCALE
OUTPUT VOLTAGE SWING
0
2
4
6
8
10
12
14
16
OUTPUT CURRENT, IO (A)
VOLTAGE DROP FROM SUPPLY (V)
SOURCE
SINK
0 107.552.5
SOA
SUPPLY TO OUTPUT DIFFERENTIAL, V
S
- V
O
(V)
OUTPUT CURRENT FROM +V
S
OR -V
S
(A)
10 1001
1
10 1mS
10mS
SINK DC
SOURCE
DC
POWER DERATING
CASE TEMPERATURE, TC (°C)
INTERNAL POWER DISSIPATION
PER CHANNEL, PD (W)
EACH CHANNEL
0 100755025
0
40
35
30
25
20
15
10
5
40 8060
450
-SLR
+SLR
CASE TEMPERATURE, TC (°C)
SLEW RATE vs. TEMPERATURE
SLEW RATE, SLR (V/µs)
-20 200-40
150
400
350
300
250
200
EXTERNAL FEEDBACK RESISTOR, R
FDBK
(Ω)
AMPLIFIER GAIN vs. RFDBK
AMPLIFIER GAIN, AV (V/V)
500 150010000
65
105
100
95
90
85
80
75
70
TOTAL SUPPLY VOLTAGE, VSS (V)
INPUT BIAS CURRENT vs. VSS SUPPLY
NORMALIZED BIAS CURRENT, IB (X)
5 20515510555
0
0.2
0.4
0.6
0.8
1.0
1.2
1801308030
EXTERNAL CONNECTIONS
42-PinDIP
PackageStyleFC
MP103
MP103U 5
Pin # Pin name Description
1,2,3 +VS_A PositivehighvoltagepowersupplypinsforchannelA.
4,5,6 IL_A HighcurrentoutputpinsforchannelA.Acurrentlimitresistormustbeplacedbetweenthesepins
andtheoutputpin8.
8 Out_A OutputpinforchannelA.
15 Out_B OutputpinforchannelB.
18,19,20 +VS_B PositivehighvoltagepowersupplypinsforchannelB.
21,22,23 -VS_B NegativepowersupplypinsforchannelB.
24,25,26 IL_B HighcurrentoutputpinsforchannelB.Acurrentlimitresistormustbeplacedbetweenthesepins
andtheoutputpin15.
28 IN_B InputpinforchannelB.
30 Feedback_B
FeedbackpinforchannelB.ThispinmustbeconnectedtooutputBpin15toclosethefeedback
loop.Whenconnecteddirectlytopin15theclosedloopvoltagegainofchannelBis65V/V.The
gaincanbeincreasedbyinsertinga1/4Wresistorbetweenpins30and15.
32 GND Ground
34 +VAUX
+24Vvoltagepowersupplypin.A24Vpowersupplyisrequiredforoperationoffrontendsmall
signalcircuitryofeachchannel.
36 Feedback_A
FeedbackpinforchannelA.ThispinmustbeconnectedtooutputApin8toclosethefeedback
loop.Whenconnecteddirectlytopin8theclosedloopvoltagegainofchannelAis65V/V.The
gaincanbeincreasedbyinsertinga1/4Wresistorbetweenpins36and8.
38 IN_A InputpinforchannelA.
40,41,42 -VS_A NegativepowersupplypinsforchannelA.
GENERAL
PleasereadApplicationNote1“GeneralOperatingConsiderations”whichcoversstability,powersupplies,heat
sinking,mounting,currentlimit,SOAinterpretation,andspecicationinterpretation.Visitwww.apexanalog.comfor
designtoolsthathelpautomatetaskssuchascalculationsforstability,internalpowerdissipation,currentlimit,heat
sinkselection,ApexMicrotchnology’scompleteApplicationNoteslibrary,TechnicalSeminarWorkbookandEvalu-
ationKits.
AMPLIFIER GAIN
WhenthefeedbackpinforeachchannelisconnectedtothecorrespondingOUTpin,thegainoftheamplieris
internallysetto65V/V.TheampliergaincanbeincreasedbyconnectingaresistorbetweenthefeedbackandOut
pin.Theampliergainwillbeincreasedapproximately1V/Vforeachadditional49.9Ωaddedbetweenthefeedback
andOUTpin.
SAFE OPERATING AREA
TheMOSFEToutputstageoftheMP103isnotlimitedbysecondbreakdownconsiderationsasinbipolaroutput
stages. Only thermal considerations and current handling capabilities limit the SOA (see Safe OperatingArea
graph).Theoutputstageisprotectedagainsttransientybackbytheparasiticbodydiodesoftheoutputstage
MOSFETstructure.However,forprotectionagainstsustainedhighenergyybackexternalfast-recoverydiodes
mustbeused.
POWER SUPPLY BYPASSING
Bypasscapacitorstopowersupplyterminals+VSand-VSmustbeconnectedphysicallyclosetothepinstoprevent
localparasiticoscillationintheoutputstageoftheMP103.Useelectrolyticcapacitorsatleast10μFperoutputamp
required.Bypasstheelectrolyticcapacitorswithhighqualityceramiccapacitors(X7R)0.1μForgreater.Duplicate
thesupplybypassforthesupplyterminalsofeachamplierchannel.Abypasscapacitorof0.1μForgreaterisrec-
ommendedforthe+VAUXterminal.
MP103
6 MP103U
Copyright © Apex Microtechnology, Inc. 2012
(All Rights Reserved)
www.apexanalog.com AUG 2012
MP103U REVC
CURRENT LIMIT
Forproperoperation,thecurrentlimitresistor(RLIM)mustbeconnectedasshownintheexternalconnectiondiagram.
Foroptimumreliabilitytheresistorvalueshouldbesetashighaspossible.Thevalueiscalculatedasfollows;with
themaximumpracticalvalueof30Ω.ThecurrentlimitfunctioncanbedisabledbyshortingtheILpintotheOUTpin.
RLIM=0.7/ILIM
POWER SUPPLY PROTECTION
Unidirectionalzenerdiodetransientsuppressorsarerecommendedasprotectiononthesupplypins.Thezeners
clamp transients to voltages within the power supply rating and also clamp power supply reversals to ground.
Whetherthezenersareusedornot,thesystempowersupplyshouldbeevaluatedfortransientperformanceinclud-
ingpower-onovershootandpower-offpolarityreversalaswellaslineregulation.Conditionswhichcancauseopen
circuitsorpolarityreversalsoneitherpowersupplyrailshouldbeavoidedorprotectedagainst.Reversalsoropens
onthenegativesupplyrailisknowntoinduceinputstagefailure.Unidirectionaltranszorbspreventthis,anditis
desirablethattheybebothelectricallyandphysicallyasclosetotheamplieraspossible.
SERIES ISOLATION RESISTOR, RS
Toinsurestabilitywithallcapacitiveloadsaseriesisolationresistorshouldbeincludedbetweentheoutputandthe
loadasshownintheexternalconnectionsdrawing.A1Ωresistorworkswellforcapacitiveloadsbetween135pFand
44nF.Theresistorwillaffecttheriseandfalltimeoftheoutputpulseatthecapacitiveload.Thiscanbecompensated
forontheinputsignal.
BACKPLATE GROUNDING
ThesubstrateoftheMP103isaninsulatedmetalsubstrate.Itisrequiredthatitbeconnectedtosignalground.This
isaccomplishedwhenthegroundpin(Pin32)isproperlyconnectedsignalground.
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