SUITEDFOR SMPS
VERYLOWFORWARD LOSSES
NEGLIGIBLESWITCHINGLOSSES
HIGHSURGE CURRENT CAPABILITY
HIGHAVALANCHEENERGYCAPABILITY
INSULATEDVERSION:
Insulatingvoltage= 2500 V
Capacitance= 7 pF
DESCRIPTION
Single chip rectifier suited for switchmode power
supplyand highfrequencyDC to DC converters.
Packagedin TO-220ACthis device is intended for
use in low voltage, high frequency inverters, free
wheelingand polarityprotectionapplications.
RMS
K
TO-220AC
(Plastic)
BYW81P-200
A
isolated
TO-220AC
(Plastic)
BYW81PI-200
A
K
ABSOLUTE MAXIMUMRATINGS
SymbolParameterValueUnit
I
F(RMS)
I
F(AV)
I
FSM
Tstg
Tj
RMSforward current
Averageforward current
δ = 0.5
BYW81PTc=115°C
BYW81PITc=90°C
Surgenon repetitiveforwardcurrent
Storageand junctiontemperaturerange
tp=10ms
sinusoidal
35A
15A
15
200A
- 40 to+ 150
- 40 to+ 150
SymbolParameterValueUnit
V
RRM
October 1999 - Ed: 2D
Repetitivepeakreverse voltage
200V
°C
°C
1/6
Page 2
BYW81P-200/ BYW81PI-200
THERMALRESISTANCE
SymbolParameterValueUnit
Rth(j-c)
Junctionto case
BYW81P
BYW81PI
2.0°C/W
3.5
ELECTRICAL CHARACTERISTICS
STATICCHARACTERISTICS
SymbolTestConditionsMin.Typ.Max.Unit
I
*
R
V
F**
Pulse test : * tp = 5 ms, duty cycle < 2 %
=25°CV
T
j
T
= 100°C
j
Tj= 125°CI
T
= 125°CI
j
T
=25°CI
j
** tp = 380µs, duty cycle < 2 %
=V
R
RRM
=12A
F
=25A
F
=25A
F
20
1.5mA
0.85V
1.05
1.15
µ
A
To evaluatethe conductionlossesuse thefollowing equation:
P = 0.65x I
F(AV)
+0.016 x I
F2(RMS)
RECOVERYCHARACTERISTICS
SymbolTestConditionsMin.Typ.Max.Unit
trrT
tfrT
V
FP
=25°CI
j
=25°CI
j
Tj=25°CI
=0.5A
F
=1A
I
R
I
=1A
F
=30V
V
R
=1A
F
=1.1 x V
V
FR
=1Atr = 10 ns2V
F
Irr = 0.25A25ns
dI
/dt = -50A/µs40
F
tr=10ns15ns
F
2/6
Page 3
BYW81P-200/ BYW81PI-200
Fig.1 : Average forward power dissipation versus
averageforward current.
P
F(av)(W)
20.0
17.5
=0.05
=0.1
=0.2
=0.5
=1
15.0
12.5
10.0
7.5
T
5.0
2.5
0.0
02.557.510 12.5 15 17.5 20
Fig.3 :
Forward voltage drop versus forward
I
F(av)(A)
=tp/T
tp
current(maximumvalues).
VFM(V)
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.1110100 200
Tj=125 C
o
IFM(A)
Fig.2: Peakcurrent versusform factor.
I
M(A)
350
300
T
250
200
150
100
P=10W
P=20W
P=30W
=tp/T
tp
50
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Fig.4 :
Relative variation of thermal impedance
junctionto case versuspulse duration.
K
1.0
Zth(j-c) (tp. )
K=
Rth(j-c)
0.5
0.2
0.1
=0.5
=0.2
=0.1
T
Single pulse
tp(s)
1.0E-031.0E-021.0E-011.0E+00
=tp/T
I
M
tp
Fig.5 :
Non repetitive surge peak forward current
versusoverloadduration.
(BYW81P)
I
M(A )
160
150
140
130
120
110
100
90
80
70
60
50
IM
40
30
20
10
0
0.0010.010.11
t
=0.5
t(s)
Tc=25 C
Tc=75 C
Tc=115 C
Fig.6 :
Non repetitive surge peak forward current
versusoverloadduration.
(BYW81PI)
Informationfurnishedis believed to be accurate and reliable.However,STMicroelectronics assumes no responsibility for the consequences of
use of such informationnor for any infringementof patents or other rights of thirdparties which may result from its use. No licenseis grantedby
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 ascritical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registeredtrademark of STMicroelectronics
1999STMicroelectronics - Printedin Italy - All rights reserved.
STMicroelectronics GROUP OF COMPANIES
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