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STTA512B-TR |STTA512BTRSTN/a20000avaiTURBOSWITCH
STTA512FPSTN/a200avaiTURBOSWITCH


STTA512B-TR ,TURBOSWITCHFEATURES AND BENEFITSKKn SPECIFIC TO THE FOLLOWING OPERATIONS:SNUBBING OR CLAMPING,TO-220AC ISOWATT ..
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STTA512B-TR-STTA512FP
TURBOSWITCH
TURBOSWITCHisa trademarkof STMicroelectronics. SPECIFIC TO THE FOLLOWING OPERATIONS:
SNUBBING OR CLAMPING,
DEMAGNETIZATION AND RECTIFICATION ULTRA-FAST, SOFT RECOVERY. VERY LOW OVERALL POWER LOSSES IN
BOTH THE DIODE AND THE COMPANION
TRANSISTOR. HIGH FREQUENCY AND/OR HIGH PULSED
CURRENT OPERATION. HIGH REVERSE VOLTAGE CAPABILITY INSULATED PACKAGES:
ISOWATT220AC, TO-220FPAC Electrical insulation: 2000V DC
Capacitance: 12pF.
FEATURES AND BENEFITS

TURBOSWITCH 1200V drastically cuts lossesin
all highvoltage operations which require extremely
fast, soft and noise-free power diodes. Dueto their
optimized switching performances they also highly
decrease power losses in any associated
switching IGBT or MOSFETin all “freewheel
mode” operations.
They are particularly suitablein motor control
circuitries,orin the primaryof SMPSas snubber,
clampingor demagnetizing diodes. They are also
suitable for secondaryof SMPS as high voltage
rectifier diodes.
DESCRIPTION
MAIN PRODUCT CHARACTERISTICS
ABSOLUTE RATINGS
(limiting values)
STTA512D/F/B/FP

TURBOSWITCH ULTRA-FAST HIGH VOLTAGE DIODE
STTA512D/F/B/FP
Pulse test:*tp=380μs,δ <2% tp=5ms, δ<2%
STATIC ELECTRICAL CHARACTERISTICS
THERMAL AND POWER DATA
DYNAMIC ELECTRICAL CHARACTERISTICS
TURN-OFF SWITCHING
TURN-ON SWITCHING
evaluate the maximum conduction losses use the following equation:
P=Vto xIF(AV) +rdxIF2 (RMS)
STTA512D/F/B/FP 1 2 34560
P1(W)
Fig.1:
Conduction losses versus averagecurrent.
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.00.01
IFM(A)
Fig. 2: Forward voltage drop versus forward
current (maximum values). 100 200 300 400 5000
IRM(A)
Fig.3:
Peak reverse recovery current versus
dIF/dt (90% confidence). 100 200 300 400 5000
trr(ns)
Fig.6: Reverse recovery time versus dIF/dt (90%
confidence).
1E-4 1E-3 1E-2 1E-1 1E+00.0
Zth(j-c)/Rth(j-c)
Fig.4: Relative variationof thermal impedance
junctionto case versus pulse duration (TO-220AC
and DPAK).
1E-3 1E-2 1E-1 1E+0 1E+10.0
Zth(j-c)/Rth(j-c)
Fig.5: Relative variationof thermal impedance
junction to case versus pulse duration
(ISOWATT220AC and TO-220FPAC).
STTA512D/F/B/FP 100 200 300 400 5000.60
1.40 factor
Fig.7:
Softness factor (tb/ta) versus dIF/dt (typical
values). 50 75 100 1250.7
Fig.8: Relative variationof dynamic parameters
versus junction temperature (reference Tj=125°C). 100 200 300 400 5000
VFP(V)
Fig.9:
Transient peak forward voltage versus
dIF/dt (90% confidence). 100 200 300 400 500100
tfr(ns)
Fig. 10: Forward recovery time versus dIF/dt (90%
confidence).
STTA512D/F/B/FP
Fig.A:
“FREEWHEEL” MODE.
The 1200V TURBOSWITCH series has been
designed to provide the lowest overall power
lossesinall high frequencyor high pulsed current
operations.In such applications (FigAto D),the
wayof calculating the power lossesis given below:
APPLICATION DATA
STTA512D/F/B/FP
Fig.E:
STATIC CHARACTERISTICS
Conduction
losses:
P1=Vt0 .IF(AV) +Rd .IF2 (RMS)
Reverse
losses:
P2=VR .IR .(1-δ)
Fig.B:
SNUBBER DIODE. Fig.C: DEMAGNETIZING DIODE.
Fig.D:
RECTIFIER DIODE.
STATIC& DYNAMIC CHARACTERISTICS. POWER LOSSES.
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