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(R)
STTA512D/F/B
TURBOSWITCH TM ULTRA-FAST HIGH VOLTAGE DIODE
MAIN PRODUCT CHARACTERISTICS IF(AV) VRRM trr (typ) VF (max) FEATURES AND BENEFITS SPECIFICTO THE FOLLOWINGOPERATIONS: 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 PACKAGE : ISOWATT220AC Electrical insulation : 2000V DC Capacitance : 12pF. DESCRIPTION TURBOSWITCH 1200V drastically cuts losses in all high voltage operationswhich require extremely fast, soft and noise-free power diodes. Due to their optimized switching performancesthey also highly decrease power losses in any associated switching IGBT or MOSFET in all "freewheel mode" operations. ABSOLUTE RATINGS (limiting values) Symbol VRRM VRSM IF(RMS) IFRM IFSM T stg Tj Parameter Repetitive peak reverse voltage Non repetitive peak reverse voltage RMS forward current Repetitive peak forward current Surge non repetitive forward current Storage temperature range Maximum operating junction temperature TO-220AC / DPAK ISOWATT220AC tp = 5 s F = 5kHz square tp = 10ms sinusoidal They are particularly suitable in motor control circuitries, or in the primary of SMPS as snubber, clamping or demagnetizing diodes. They are also suitable for secondary of SMPS as high voltage rectifier diodes. 5A
K
1200V 45ns 2.0V
A K
K A
TO-220AC STTA512D
ISOWATT220AC STTA512F
K
A NC
DPAK STTA512B
Value 1200 1200 20 10 70 45 - 65 to + 150 150
Unit V V A A A A C C
TURBOSWITCH is a trademark of STMicroelectronics.
January 1999 - Ed: 4A
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STTA512D/F/B
THERMAL AND POWER DATA Symbol Rth(j-c) P1 Pmax Parameter Junction to case thermal resistance Conduction power dissipation IF(AV) = 5A =0.5 Total power dissipation Pmax = P1 + P3 (P3 = 10% P1) TO-220AC/DPAK ISOWATT220AC TO-220AC/DPAK Tc= 102C ISOWATT220AC Tc= 84C TO-220AC/DPAK Tc= 98C ISOWATT220AC Tc= 78C Conditions Value 4.0 5.5 12 13 Unit C/W W W
STATIC ELECTRICAL CHARACTERISTICS Symbol VF IR
*
Parameter Forward voltage drop Reverse leakage current Threshold voltage Dynamic resistance
* tp = 380 s, < 2% ** tp = 5 ms , < 2%
Test conditions IF =5A VR =0.8 x VRRM Ip < 3.IAV Tj = 25C Tj = 125C Tj = 25C Tj = 125C Tj = 125C
Min
Typ 1.35 0.3
Max 2.2 2.0 100 2.0 1.57 86
Unit V V A mA V m
**
Vto Rd
Test pulses :
To evaluate the maximum conduction losses use the following equation : P = Vto x IF(AV) + rd x IF2(RMS) DYNAMIC ELECTRICAL CHARACTERISTICS TURN-OFF SWITCHING Symbol trr Parameter Reverse recovery time Maximum reverse recovery current Softness factor Test conditions Tj = 25C Irr = 0.25A IF = 0.5 A IR = 1A IF = 1 A dIF/dt =-50A/s VR =30V Tj = 125C VR = 600V dIF/dt = -40 A/s dIF/dt = -500 A/s Tj = 125C VR = 600V dIF/dt = -500 A/s IF =5A 7.5 20 IF =5A 1.2 / Min Typ 45 95 A Max Unit ns
IRM
S factor
TURN-ON SWITCHING Symbol tfr Parameter Forward recovery time Test conditions Tj = 25C IF =5 A, dIF/dt = 40 A/s measured at 1.1 x VFmax Min Typ Max 900 V 35 50 Unit ns
VFp
Peak forward voltage Tj = 25C IF =5A, dIF/dt = 40 A/s IF =40A, dIF/dt = 500 A/s
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STTA512D/F/B
Fig. 1: Conductionlosses versus average current. Fig. 1: Forward voltage drop versus forward current (maximum values).
IFM(A)
= 0.1 = 0.2 = 0.5
P1(W) 13 12 11 10 9 8 7 6 5 4 3 2 1 0
100.00
Tj=125C
10.00
=1
1.00 0.10
IF(av) (A) 0 1 2 3 4 5 6
VFM(A) 0.01 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Fig. 3: Peak reverse recovery current versus dIF/dt (90% confidence).
IRM(A) 40
VR=600V Tj=125C
Fig. 4: Relative variation of thermal impedance junction to case versus pulse duration (TO-220AC and DPAK).
Zth(j-c)/Rth(j-c) 1.0
30 20 10
IF=2*IF(av)
0.8
IF=IF(av)
0.6
= 0.5
0.4 0.2
= 0.2 = 0.1 Single pulse
dIF/dt(A/s) 0 0 100 200 300 400 500
tp(s) 1E-3 1E-2 1E-1 1E+0
0.0 1E-4
Fig. 5: Relative variation of thermal impedance junction to case versus pulse duration (ISOWATT220AC).
Zth(j-c)/Rth(j-c) 1.0 0.8 0.6
= 0.5
Fig. 6: Reverse recovery time versus dIF/dt (90% confidence).
trr(ns) 400 350 300 250
IF=2*IF(av) VR=600V Tj=125C
200 150 100 tp(s) 1E-2 1E-1 1E+0 1E+1 50 0 0 100
IF=IF(av)
0.4 0.2
= 0.2 = 0.1 Single pulse
dIF/dt(A/s)
200 300 400 500
0.0 1E-3
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STTA512D/F/B
Fig. 7: Softness factor (tb/ta) versus dIF/dt (typical values). Fig. 8: Relative variation of dynamic parameters versus junction temperature (reference Tj=125C).
S factor 1.40 1.20 1.00 0.80
VR=600V Tj=125C IF<2*IF(av)
1.1
S factor
1.0
0.9
IRM
0.8
dIF/dt(A/s)
0.60 0 100 200 300 400 500 0.7 25 50
Tj(C) 75 100 125
Fig. 9: Transient peak forward voltage versus dIF/dt (90% confidence).
VFP(V) 70 60 50 40
IF=IF(av) Tj=125C
Fig. 10: Forward recovery time versus dIF/dt (90% confidence).
tfr(ns) 500 400 300
VFR=1.1*VF max. IF=IF(av) Tj=125C
30 20 10 0 0 100 dIF/dt(A/s) 100 200 300 400 500 0 100 200 dIF/dt(A/s) 200 300 400 500
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STTA512D/F/B
APPLICATION DATA The 1200V TURBOSWITCH series has been designed to provide the lowest overall power losses in all high frequency or high pulsed current operations. In such applications (Fig A to D),the way of calculating the power losses is given below:
TOTAL LOSSES due to the diode P = P1+ P2+ P3+ P4+ P5
Watts
CONDUCTION LOSSES in the diode
REVERSE LOSSES in the diode
SWITCHING LOSSES in the diode
SWITCHING LOSSES in the tansistor due to the diode
Fig. A : "FREEWHEEL" MODE.
SWITCHING TRANSISTOR
DIODE: TURBOSWITCH
IL
VR
t T F = 1/T = t/T
LOAD
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STTA512D/F/B
Fig. B : SNUBBER DIODE. Fig. C : DEMAGNETIZING DIODE.
PWM t T F = 1/T = t/T
Fig. D : RECTIFIER DIODE.
STATIC & DYNAMIC CHARACTERISTICS . POWER LOSSES . Fig. E: STATIC CHARACTERISTICS Conduction losses :
I
P1 = Vt0 . IF(AV) + Rd . IF2(RMS)
IF Rd VR V IR V tO VF
Reverse losses : P2 = VR . IR . (1 - )
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STTA512D/F/B
APPLICATION DATA (Cont'd) Fig. F: TURN-OFF CHARACTERISTICS
V IL TRANSISTOR I t
Turn-on losses : (in the transistor, due to the diode) P5 =
VR x IRM 2 x ( 3 + 2 x S ) x F 6 x dIF dt VR x IRM x IL x ( S + 2 ) x F + 2 x dIF dt
I dI F /dt V I RM ta tb t dI R /dt VR trr = ta + tb I dI F /dt = VR /L V IRM ta tb t dI R /dt VR
trr = ta + tb S = tb/ta
DIODE
Turn-off losses (in the diode) : P3 =
VR x IRM 2 x S x F 6 x dIF dt
S = tb / ta
RECTIFIER OPERATION
Turn-off losses : (with non negligible serial inductance) P3' =
VR x IRM 2 x S x F + 6 x dIF dt L x IRM 2 x F 2
P3,P3' and P5 are suitable for powerMOSFET and IGBT
Fig. G: TURN-ON CHARACTERISTICS
IF dI F /dt I Fmax
0 VF V Fp
t
Turn-on losses : P4 = 0.4 (VFP - VF) . IFmax . tfr . F
1.1V F 0 tfr
VF t
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STTA512D/F/B
PACKAGE DATA DPAK DIMENSIONS Millimeters Inches Min. Typ. Max Min. Typ. Max. A A1 A2 B B2 C C2 D E G H L2 L4 V2 2.20 0.90 0.03 0.64 5.20 0.45 0.48 6.00 6.40 4.40 9.35 0.80 0.60 0 1.00 0.023 8 0 2.40 0.086 1.10 0.035 0.23 0.001 0.90 0.025 5.40 0.204 0.60 0.017 0.60 0.018 6.20 0.236 6.60 0.251 4.60 0.173 10.10 0.368 0.031 0.039 8 0.094 0.043 0.009 0.035 0.212 0.023 0.023 0.244 0.259 0.181 0.397
REF.
FOOTPRINT DIMENSIONS (in millimeters)
6.7
6.7
6.7 3 1.6 2.3 2.3 1.6
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STTA512D/F/B
PACKAGE DATA ISOWATT220AC DIMENSIONS
A H B
REF. A
Millimeters
Inches
Min. Typ. Max. Min. Typ. Max. 4.40 4.60 0.173 0.181 2.50 2.40 0.40 0.75 1.15 4.95 2.70 0.098 2.75 0.094 0.70 0.016 1.00 0.030 1.70 0.045 5.20 0.195 0.106 0.108 0.028 0.039 0.067 0.205
Diam
B D E
L7
L6 L2 L3
F F1 G
F1
H 10.00 10.40 0.394 0.409 L2 16.00 0.630 L3 28.60 L6 15.90 L7 9.00 Diam 3.00 30.60 1.125 16.40 0.626 9.30 0.354 3.20 0.118 1.205 0.646 0.366 0.126
F G
D
E
Cooling method: by conduction (C) Recommended torque value: 0.55 m.N Maximum torque value: 0.7 m.N
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STTA512D/F/B
PACKAGE DATA TO-220AC (JEDEC outline) REF.
H2 C L5 OI L6 L2 D L4 L7 A
DIMENSIONS Millimeters Inches Min. Max. 4.60 1.32 2.72 0.70 0.88 1.70 5.15 10.40 14.00 2.95 15.75 6.60 Min. 0.173 0.048 0.094 0.019 0.024 0.044 0.194 0.393 0.511 0.104 0.600 0.244 Max. 0.181 0.051 0.107 0.027 0.034 0.066 0.202 0.409 0.551 0.116 0.620 0.259 4.40 1.23 2.40 0.49 0.61 1.14 4.95 10.00 13.00 2.65 15.25 6.20
A C D E F F1 G H2 L2 L4
M E
L9 F1
16.40 typ.
0.645 typ.
F G
L5 L6 L7 L9 M Diam. I
3.50 3.93 2.6 typ. 3.75 3.85
0.137 0.154 0.102 typ. 0.147 0.151
Cooling method: by conduction (C) Recommended torque value: 0.55 m.N Maximum torque value: 0.7 m.N Ordering type STTA512D STTA512F STTA512B STTA512B-TR Marking STTA512D STTA512F A512 A512 Package TO-220AC ISOWATT220AC DPAK DPAK Weight 1.86g 2g 0.3g 0.3g Base qty 50 50 75 2500 Delivery mode Tube Tube Tube Tape & reel
Epoxy meets UL94,V0
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics (c) 1999 STMicroelectronics - Printed in Italy - All rights reserved. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. http://www.st.com 10/10

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