RHRU7570, RHRU7580, RHRU7590 and RHRU75100
(TA49068) are hyperfast diodes with soft recovery characteristics (t
< 85ns). They have half the recovery time of
RR
ultrafast diodes and are silicon nitride passivated ionimplanted 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 hyperfast soft recovery minimize ringing
and electrical noise in many power switching circuits reducing power loss in the switching transistors.
VF = Instantaneous forward voltage (pw = 300µs, D = 2%).
I
= Instantaneous reverse current.
R
= Reverse recovery time (Figure 2), summation of tA + tB.
t
RR
= Time to reach peak reverse current (See Figure 2).
t
A
t
= Time from peak IRM to projected zero crossing of IRM based on a straight line from peak IRM through 25% of IRM (See Figure 2).
B
= Reverse recovery charge.
Q
RR
= Junction capacitance.
C
J
R
= Thermal resistance junction to case.
θJC
= Controlled avalanche energy. (See Figures 10 and 11).
E
AVL
pw = pulse width.
D = duty cycle.
UNITSMINTYPMAXMINTYPMAXMINTYPMAXMINTYPMAX
o
C/W
V1 AMPLITUDE CONTROLS I
V2 AMPLITUDE CONTROLS dIF/dt
= SELF INDUCTANCE OF
L
1
R4+ L
LOOP
+V
1
0
t
2
t
1
0
-V
2
F
t
3
R
3
FIGURE 1. tRR TEST CIRCUIT
+V
3
t
LOOP
R
1
t2 > t
t3 > 0
L
R
4
1
4
≥ 5t
DUT
A(MAX)
RR
t
≤
A(MIN)
10
dI
F
I
F
dt
0
V
RM
t
RR
t
A
t
B
0.25 I
RM
I
RM
V
R
R
1
Q
1
R
2
Q
3
C1
Q
2
L
Q
4
-V
4
FIGURE 2. tRR WAVEFORMS AND DEFINITIONS
2
Page 3
RHRU7570, RHRU7580, RHRU7590, RHRU75100
Typical Performance Curves
400
100
+100oC
+175oC
10
, FORWARD CURRENT (A)
F
I
1
0
1
+25oC
2
VF, FORWARD VOLTAGE (V)
3
4
FIGURE 3. TYPICAL FORWARD CURRENT vs FORWARD
VOLTAGE DROP
100
80
60
40
t, RECOVERY TIMES (ns)
20
t
RR
t
A
t
B
TC = +25oC
1000
+175oC
100
10
1
, REVERSE CURRENT (µA)
0.1
R
I
5
0.01
0200400
VR, REVERSE VOLTAGE (V)
+100oC
+25oC
600
800
1000
FIGURE 4. TYPICAL REVERSE CURRENT vs REVERSE
VOLTAGE
300
250
200
150
100
t, RECOVERY TIMES (ns)
50
t
RR
t
B
t
A
TC = +100oC
0
1
IF, FORWARD CURRENT (A)
10
FIGURE 5. TYPICAL tRR,tAAND tBCURVESvs FORWARD
CURRENT A T +25oC
500
400
300
200
t, RECOVERY TIMES (ns)
100
0
1
t
RR
t
B
t
10
, FORWARD CURRENT (A)
I
F
TC = +175oC
A
FIGURE 7. TYPICAL tRR,tAAND tBCURVES vs FORWARD
CURRENT AT +175oC
0
75
1
IF, FORWARD CURRENT (A)
10
75
FIGURE 6. TYPICAL tRR,tAAND tBCURVESvs FORWARD
CURRENT A T +100oC
75
60
45
30
15
, AVERAGE FORWARD CURRENT (A)
F(AV)
0
I
75
25
50
SQ. WAVE
75
T
, CASE TEMPERATURE (oC)
C
100
DC
125
150175
FIGURE 8. CURRENT DERATING CURVE FOR ALL TYPES
3
Page 4
RHRU7570, RHRU7580, RHRU7590, RHRU75100
Typical Performance Curves (Continued)
800
700
600
500
400
300
200
, JUNCTION CAPACITANCE (pF)
J
C
100
0
0
FIGURE 9. TYPICAL JUNCTION CAPACITANCE vs REVERSE VOLTAGE
I
= 1A
MAX
L = 40mH
R < 0.1Ω
E
= 1/2LI2 [V
AVL
Q
AND Q2 ARE 1000V MOSFETs
1
AVL
/(V
AVL
- VDD)]
Q
1
L
50
VR, REVERSE VOLTAGE (V)
R
+
V
DD
100
150
200
12V
130Ω
Q
2
130Ω
1MΩ
DUT
CURRENT
SENSE
V
AVL
I
L
IV
V
DD
I
L
-
12V
FIGURE 10. AVALANCHE ENERGY TEST CIRCUITFIGURE 11. AVALANCHE CURRENT AND VOLTAGE WAVE-
t
0
t
1
t
2
t
FORMS
All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification.
Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However,no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements 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 Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see web site www.intersil.com
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NORTH AMERICA
Intersil Corporation
P. O. Box 883, Mail Stop 53-204
Melbourne, FL 32902
TEL: (321) 724-7000
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4
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