1N582x
LOW DROP POWER SCHOTTKY RECTIFIER
MAIN PRODUCTS CHARACTERISTICS
I 3A
F(AV)
V 40 V
RRM
T 150C
j
V (max) 0.475 V
F
FEATURES AND BENEFITS
n VERY SMALL CONDUCTION LOSSES
n NEGLIGIBLE SWITCHING LOSSES
n EXTREMELY FAST SWITCHING
n LOW FORWARD VOLTAGE DROP
n AVALANCHE CAPABILITY SPECIFIED
DO-201AD
DESCRIPTION
Axial Power Schottky rectifier suited for Switch
Mode Power Supplies and high frequency DC to
DC converters. Packaged in DO-201AD these
devices are intended for use in low voltage, high
frequency inverters, free wheeling, polarity
protection and small battery chargers.
ABSOLUTE RATINGS (limiting values)
Value
Symbol Parameter Unit
1N5820 1N5821 1N5822
20 30 40 V
V
RRM
Repetitive peak reverse voltage
I 10 A
F(RMS)
RMS forward current
I 3A
F(AV)
Average forward current T = 100C = 0.5
L
33 A
T = 110C = 0.5
L
I 80 A
FSM
Surge non repetitive forward tp=10ms
current Sinusoidal
P 1700 W
ARM
Repetitive peak avalanche tp = 1s Tj = 25C
power
T - 65 to + 150 C
stg
Storage temperature range
Tj 150 C
Maximum operating junction temperature *
dV/dt 10000 V/s
Critical rate of rise of reverse voltage
dPtot 1
*: < thermal runaway condition for a diode on its own heatsink
dTj Rth()j - a
July 2003 - Ed: 3A
1/51N582x
THERMAL RESISTANCES
Symbol Parameter Value Unit
R Lead length = 10 mm 80 C/W
th (j-a)
Junction to ambient
R Lead length = 10 mm 25 C/W
th (j-l)
Junction to lead
STATIC ELECTRICAL CHARACTERISTICS
Symbol Parameter Tests Conditions 1N5820 1N5821 1N5822 Unit
I * 222 mA
R
Reverse leakage Tj=25CV =V
R RRM
current
20 20 20 mA
Tj = 100C
V * 0.475 0.5 0.525 V
F
Forward voltage drop Tj = 25CI =3A
F
0.85 0.9 0.95 V
Tj=25CI = 9.4 A
F
Pulse test : * tp = 380 s, <2%
To evaluate the conduction losses use the following equations :
2
P=0.33xI + 0.035 I for 1N5820 / 1N5821
F(AV) F (RMS )
2
P=0.33xI + 0.060 I for 1N5822
F(AV) F (RMS )
Fig. 1: Average forward power dissipation versus Fig. 2: Average forward power dissipation versus
average forward current (1N5820/1N5821). average forward current (1N5822).
PF(av)(W) PF(av)(W)
1.8 2.0
= 0.1 = 0.2
= 0.2 = 0.5
= 0.1 = 0.5
1.8
1.6
= 0.05
1.6 = 0.05
1.4
= 1
1.4
1.2
= 1
1.2
1.0
1.0
0.8
0.8
0.6
0.6
T T
0.4
0.4
0.2
0.2
=tp/T tp =tp/T tp
IF(av) (A) IF(av) (A)
0.0 0.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
Fig. 3: Normalized avalanche power derating Fig. 4: Normalized avalanche power derating
versus pulse duration. versus junction temperature.
P(ARMtp)
P(t)
ARM p
P (1s)
ARM
P (25C)
ARM
1
1.2
1
0.1
0.8
0.6
0.01 0.4
0.2
T (C)
j
tp(s)
0.001
0
0 25 50 75 100 125 150
0.01 0.1 1 10 100 1000
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