SGS Thomson Microelectronics 1N5822, 1N5820, 1N5821 Datasheet
®
LOW DROP POWER SCHOTTK Y RECTIFIER
MAIN PRODUCTS CHARACTE RISTICS
1N582x
I
F(AV)
V
RRM
T
j
(max) 0.475 V
V
F
3 A
40 V
150°C
FEATURES AND BENE FITS
VERY SMALL CONDUCTION LOSSES
NEGLIGIBLE SWITCHING LOSSE S
EXTREMELY FAST SWITCHING
LOW FORWARD V O LTAGE DROP
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)
Symbol Parameter
V
RRM
I
F(RMS)
I
F(AV)
I
FSM
T
stg
Tj
dV/dt
Repetitive peak reverse voltage
RMS forward current
Average forward current TL = 100°C
Surge non repetitive forward current tp = 10 ms
Storage temperature range
Maximum operating junction temperature *
Critical rate of rise of rev erse v oltage
δ = 0.5
T
= 110°C
L
δ = 0.5
Sinusoidal
DO-201AD
Value
1N5820 1N5821 1N5822
Unit
20 30 40 V
10 A
3A
33 A
80 A
- 65 to + 150 °C
150 ° C
10000 V/µs
dPtot
* :
July 1999 - Ed: 2A
dTj
<
Rth(j−a
1
thermal runaway condition for a diode on its own heatsink
)
1/5
1N582x
THERMA L RE SISTA NC ES
Symbol Parameter Value Unit
R
R
th (j-a)
th (j-l)
Junction to ambient
Junction to lead
STATIC ELECTRICAL CHARACTE RISTICS
Symbol Parameter Tests Conditions 1N5820 1N5821 1N5822 Unit
Lead length = 10 mm 80 °C/W
Lead length = 10 mm 25 °C/W
*
I
R
V
F
Reverse leakage
current
*
Forward voltage drop Tj = 25°CI
Tj = 25°CV
Tj = 100°C
Tj = 25°CI
= V
R
= 3 A
F
= 9.4 A
F
RRM
Pulse test : * tp = 380 µs, δ < 2%
To evaluate the conduction losses use the following equations :
P = 0.33 x I
P = 0.33 x I
F(AV)
F(AV)
+ 0.035 I
+ 0.060 I
F2(RMS )
F2(RMS )
for 1N5820 / 1N5821
for 1N5822
222mA
20 20 20 mA
0.475 0.5 0.525 V
0.85 0.9 0.95 V
Fig. 1: Average forward power dissipation versus
average forward current (1N5820/1N5821).
PF(av)(W)
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
δ = 0.05
2/5
δ = 0.1
δ = 0.2
IF(av) (A)
δ = 0.5
δ
=tp/T
δ = 1
T
tp
Fig. 2: Average forward power dissipation versus
average forward current (1N5822).
PF(av)(W)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
δ = 0.05
δ = 0.1
IF(av) (A)
δ = 0.2
δ
=tp/T
δ = 0.5
δ = 1
T
tp
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