S E M I C O N D U C T O R
RURU8040, RURU8050,
RURU8060
80A, 400V - 600V Ultrafast Diodes
Package
JEDEC STYLE SINGLE LEAD TO-218
ANODE
April 1995
Features
• Ultrafast with Soft Recovery . . . . . . . . . . . . . . . . . . . . . .<75ns
• Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . .+175
o
C
• Reverse Voltage Up To . . . . . . . . . . . . . . . . . . . . . . . . . . .600V
• Avalanche Energy Rated
• Planar Construction
CATHODE
(FLANGE)
Applications
• Switching Power Supplies
• Power Switching Circuits
• General Purpose
Symbol
K
Description
RURU8040, RURU8050 and RURU8060 (TA9886) are ultrafast
diodes with soft recovery characteristics (t
RR
< 75ns). They have
low forward voltage drop and are silicon nitride passivated ion-
implanted epitaxial planar construction.
These devices are intended for use as freewheeling/clamping
diodes and rectifiers in a variety of switching power supplies and
other power switching applications. Their low stored charge and
ultrafast recovery with soft recovery characteristic minimizes ring-
ing and electrical noise in many power switching circuits reducing
power loss in the switching transistors.
PACKAGING AVAILABILITY
PART NUMBER
RURU8040
RURU8050
RURU8060
PACKAGE
TO-218
TO-218
TO-218
BRAND
RURU8040
RURU8050
RURU8060
A
NOTE: When ordering, use the entire part number.
Absolute Maximum Ratings
T
C
= +25
o
C, Unless Otherwise Specified
RURU8040
Peak Repetitive Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
RRM
Working Peak Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
RWM
DC Blocking Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .V
R
Average Rectified Forward Current . . . . . . . . . . . . . . . . . . . . . . . . . . . I
F(AV)
(T
C
= +84
o
C)
Repetitive Peak Surge Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
FSM
(Square Wave, 20kHz)
Nonrepetitive Peak Surge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
FSM
(Halfwave, 1 Phase, 60Hz)
Maximum Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P
D
Avalanche Energy (L = 40mH) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E
AVL
Operating and Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . T
STG
, T
J
400
400
400
80
160
800
180
50
-65 to +175
RURU8050
500
500
500
80
160
800
180
50
-65 to +175
RURU8060
600
600
600
80
160
800
180
50
-65 to +175
UNITS
V
V
V
A
A
A
W
mj
o
C
Copyright
©
Harris Corporation 1995
5-112
File Number
3380.2
Specifications RURU8040, RURU8050, RURU8060
Electrical Specifications
T
C
= +25
o
C, Unless Otherwise Specified
LIMITS
RURU8040
SYMBOL
V
F
V
F
I
R
TEST CONDITION
I
F
= 80A, T
C
= +25
o
C
I
F
= 80A, T
C
= +150
o
C
V
R
= 400V, T
C
= +25
o
C
V
R
= 500V, T
C
= +25
o
C
V
R
= 600V, T
C
= +25
o
C
I
R
V
R
= 400V, T
C
= +150
o
C
V
R
= 500V, T
C
= +150
o
C
V
R
= 600V, T
C
= +150
o
C
t
RR
I
F
= 1A, dI
F
/dt = 100A/µs
I
F
= 80A, dI
F
/dt = 100A/µs
t
A
t
B
R
θJC
DEFINITIONS
V
F
= Instantaneous forward voltage (pw = 300µs, D = 2%).
I
R
= Instantaneous reverse current.
t
RR
= Reverse recovery time (See Figure 2), summation of t
A
+ t
B
.
t
A
= Time to reach peak reverse current (See Figure 2).
t
B
= Time from peak I
RM
to projected zero crossing of I
RM
based on a straight line from peak I
RM
through 25% of I
RM
(See Figure 2).
R
θJC
= Thermal resistance junction to case.
E
AVL
= Controlled avalanche energy (See Figures 7 and 8).
pw = pulse width.
D = duty cycle.
I
F
= 80A, dI
F
/dt = 100A/µs
I
F
= 80A, dI
F
/dt = 100A/µs
MIN
-
-
-
-
-
-
-
-
-
-
-
-
-
TYP
-
-
-
-
-
-
-
-
-
-
40
25
-
MAX
1.6
1.4
500
-
-
2.0
-
-
75
85
-
-
0.83
MIN
-
-
-
-
-
-
-
-
-
-
-
-
-
RURU8050
TYP
-
-
-
-
-
-
-
-
-
-
40
25
-
MAX
1.6
1.4
-
500
-
-
2.0
-
75
85
-
-
0.83
MIN
-
-
-
-
-
-
-
-
-
-
-
-
-
RURU8060
TYP
-
-
-
-
-
-
-
-
-
-
40
25
-
MAX
1.6
1.4
-
-
500
-
-
2.0
75
85
-
-
0.83
UNITS
V
V
µA
µA
µA
mA
mA
mA
ns
ns
ns
ns
o
C/W
V
1
AMPLITUDE CONTROLS I
F
V
2
AMPLITUDE CONTROLS dI
F
/dt
R
1
L
1
= SELF INDUCTANCE OF R
4
+ L
LOOP
Q
1
+V
1
0
t
2
t
1
R
2
+V
3
Q
2
t
1
≥
5t
A(MAX)
t
2
> t
RR
t
3
> 0
L
1
t
A(MIN)
≤
R
4
10
L
LOOP
DUT
Q
4
0.25 I
RM
0
I
F
dI
F
dt
t
A
t
RR
t
B
t
3
C1
0
-V
2
R
3
Q
3
-V
4
V
RM
R
4
I
RM
V
R
FIGURE 1. t
RR
TEST CIRCUIT
FIGURE 2. t
RR
WAVEFORMS AND DEFINITIONS
5-113
RURU8040, RURU8050, RURU8060
Typical Performance Curves
FIGURE 3. TYPICAL FORWARD CURRENT vs FORWARD
VOLTAGE DROP
FIGURE 4. TYPICAL REVERSE CURRENT vs VOLTAGE
FIGURE 5. TYPICAL t
RRr
, t
A
AND t
B
CURVES vs FORWARD
CURRENT
FIGURE 6. CURRENT DERATING CURVE FOR ALL TYPES
IMAX = 1A
L = 40mH
R < 0.1Ω
EAVL = 1/2LI
2
[VAVL/(VAVL - V
DD
)]
Q
1
& Q
2
ARE 1000V MOSFETs
Q
1
L
R +
V
DD
130Ω
1MΩ
DUT
VAVL
12V
Q
2
130Ω
CURRENT
SENSE
I V
V
DD
-
I
L
I
L
12V
t
0
t
1
t
2
t
FIGURE 7. AVALANCHE ENERGY TEST CIRCUIT
FIGURE 8. AVALANCHE CURRENT AND VOLTAGE WAVEFORMS
5-114
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