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BYT01-400
October 2001 - Ed: 2A
HIGH EFFICIENCY ULTRAFAST DIODE
The BYT01-400 which is using ST's 400V planar
technology, is specially suited for switching mode
base drive & transistor circuits.
The device, which is available in axial (DO-15)
package, is also intended for use as a free
wheeling diode in power supplies and other power
switching applications.
DESCRIPTION
s
Very low conduction losses
s
Negligible switching losses
s
Low forward & reverse recovery times
FEATURES AND BENEFITS
DO-15
BYT01-400
Symbol
Parameter
Value
Unit
V
RRM
Repetive peak reverse voltage
400
V
I
F (AV)
Average forward current
TI = 80C
= 0.5
1
A
I
FSM
Surge non repetitive forward current
tp = 10ms Sinusoidal
30
A
T
stg
Storage temperature range
- 65 to +150
C
T
j
Maximum operating junction temperature
150
C
ABSOLUTE RATINGS (limiting values)
I
F(AV)
1 A
V
RRM
400 V
T
j
(max)
150C
V
F
(max)
1.4 V
trr (max)
25 ns
MAIN PRODUCT CHARACTERISTICS
BYT01-400
2/5
Symbol
Parameter
Value
Unit
R
th(j-a)
Junction to ambient*
45
C/W
* On infinite heatsink with 10mm lead length.
THERMAL PARAMETERS
Symbol
Parameters
Test Conditions
Min.
Typ.
Max.
Unit
I
R
*
Reverse leakage current
T
j
= 25C
V
R
= V
RRM
20
A
T
j
= 100C
0.1
0.5
mA
V
F
**
Forward voltage drop
T
j
= 25
C
I
F
= 1A
1.5
V
T
j
= 100C
1.0
1.4
STATIC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
trr
Reverse recovery
time
T
j
= 25
C
I
F
= 0.5A
I
R
= 1A
I
rr
= 0.25A
16
25
ns
I
F
= 1A
dI
F
/dt = - 15A/
s
V
R
= 30V
55
tfr
Forward recovery
time
T
j
= 25
C
I
F
= 1A
dI
F
/dt = 50A/
s
VFR = 1.1 x V
F
max
60
ns
V
FP
Forward recovery
voltage
T
j
= 25
C
I
F
= 1A
dI
F
/dt = 50A/
s
9.5
V
DYNAMIC ELECTRICAL CHARACTERISTICS
Pulse test: * tp = 5ms,
< 2%
** tp = 380s,
< 2%
To evaluate the maximum conduction losses use the following equation:
P = 1.1 x I
F(AV)
+ 0.25 I
F
2
(RMS)
BYT01-400
3/5
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
IF(av)(A)
PF(av)(W)
= 0.05
= 0.1
= 0.2
= 0.5
= 1
T
=tp/T
tp
Fig. 1: Average forward power dissipation versus
average forward current.
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0
25
50
75
100
125
150
Tamb(C)
Rth(j-a)=Rth(j-l)
Rth(j-a)=100C/W
IF(av)(A)
Fig. 2: Average forward current versus ambient
temperature (
= 0.5)
0
10
20
30
40
50
60
70
80
90
100
110
5
10
15
20
25
Lleads(mm)
Rth(j-a)
Rth(j-l)
Rth(C/W)
Fig. 3: Thermal resistance versus lead length.
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.E-01
1.E+00
1.E+01
1.E+02
1.E+03
tp(s)
Zth(j-a)/Rth(j-a)
= 0.5
= 0.2
= 0.1
Single pulse
T
=tp/T
tp
Fig. 4: Relative variation of thermal impedance
junction ambient versus pulse duration (printed
circuit board epoxy FR4, Lleads = 10mm).
0.1
1.0
10.0
100.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
VFM(V)
Tj=25C
(Maximum values)
Tj=100C
(Typical values)
Tj=100C
(Typical values)
Tj=100C
(Maximum values)
IFM(A)
Fig. 5: Forward voltage drop versus forward current.
0
1
2
3
4
5
6
7
8
9
10
1
10
100
1000
VR(V)
F=1MHz
Vosc=30mV
Tj=25C
C(pF)
Fig. 6: Junction capacitance versus reverse
voltage applied (typical values).
BYT01-400
4/5
0
20
40
60
80
100
0
10
20
30
40
50
60
70
80
90
100
tfr(ns)
IF=1A
Tj=100C
dIF/dt(A/s)
Fig. 7: Forward recovery time versus dIF/dt (90%
confidence).
0.0
2.5
5.0
7.5
10.0
12.5
15.0
0
10
20
30
40
50
60
70
80
90
100
dIF/dt(A/s)
IF=1A
Tj=100C
VFP(V)
Fig. 8. Transient peak forward voltage versus
dIF/dt (90% confidence).
0.0
0.5
1.0
1.5
2.0
2.5
1
10
100
dIF/dt(A/s)
IF=1A
VR=200V
Tj=100C
Tj=25C
IRM(A)
Fig. 9: Peak reverse recovery current versus
dIF/dt (90% confidence).
100
150
200
250
300
25
50
75
100
125
150
Tj(C)
IRM
Qrr
trr
IF=1A
dIF/dt=-50A/s
VR=30V
%
Fig. 10: Dynamic parameters versus junction
temperature.
0
5
10
15
20
25
30
35
1
10
100
1000
Number of cycles
Tj initial=25C
IFSM(A)
Fig. 11: Non repetitive surge peak current versus
number of cycles.
BYT01-400
5/5
PACKAGE MECHANICAL DATA
DO-15
A
C
C
D
B
REF.
DIMENSIONS
Millimeters
Inches
Min.
Max.
Min.
Max.
A
6.05
6.75
0.238
0.266
B
2.95
3.53
0.116
0.139
C
26
31
1.024
1.220
D
0.71
0.88
0.028
0.035
Ordering code
Marking
Package
Weight
Base qty
Delivery mode
BYT01-400
BYT01-400
DO-15
0.4 g
1000
Ammopack
BYT01-400RL
BYT01-400
DO-15
0.4 g
6000
Tape & Reel
s
Cooling method: by conduction (method A)
s
Epoxy meets UL 94,V0
s
Bending method: Application note AN1471
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