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Allegro MicroSystems

A8920SLR Datasheet Preview

A8920SLR Datasheet

DUAL SCHOTTKY DIODE

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8920
1
3
2
Dwg. PD-002
DUAL SCHOTTKY DIODE
Schottky barrier diodes combine high rectification efficiency with
high switching speeds and low series resistance. The A8920SLR dual-
diode is designed specifically for hard-disk drive applications requiring
low voltage drop rectification of the spindle motor back-EMF during
power-down head retraction. It is supplied in a 3-lead small-outline
transistor package (SOT-23/TO-236AB) for surface-mounting for use
over the operating temperature range of -20°C to +85°C.
FEATURES
s Low Forward Voltage Drop 440 mV Typical at 150 mA
s 500 mA Forward Current
s 20 V Reverse Voltage
TYPICAL APPLICATION
VDD
Dwg. ED-002A
ABSOLUTE MAXIMUM RATINGS
at TA=+25°C
Forward Current, IF .......................... 500 mA
Reverse Voltage, VR .............................. 20 V
Operating Temperature Range,
TA .................................. -20°C to +85°C
Storage Temperature Range,
TS ................................ -65°C to +150°C
Always order by complete part number: A8920SLR .




Allegro MicroSystems

A8920SLR Datasheet Preview

A8920SLR Datasheet

DUAL SCHOTTKY DIODE

No Preview Available !

8920
DUAL SCHOTTKY DIODE
ELECTRICAL CHARACTERISTICS at TA= +25°C (unless otherwise specified).
Characteristic
Reverse Breakdown Voltage
Reverse Leakage Current
Forward Voltage
Junction Capacitance
Reverse Recovery Time
Symbol
V(BR)
IR
VF
CT
trr
Test Conditions
IR = 100 µA
VR = 10 V
IF = 50 mA
IF = 150 mA
VR = 0 V, f = 1 MHz
IF = IR = 100 mA
Min.
20
Limits
Typ. Max.
——
1.6 20
346 400
440 500
370 —
32 —
Units
V
µA
mV
mV
pF
ns
TYPICAL CHARACTERISTICS
600
250
500
400
300
200
100
0.1
TA = 0°C
TA = +25°C
TA = +75°C
1.0 10 100
FORWARD CURRENT IN mA
100
TA = +75°C
30
1k
Dwg. GD-003
10
200
RθJA = 575°C/W
150
100
50
0
25
50 75 100 125
AMBIENT TEMPERATURE IN °C
150
Dwg. GD-002
3.0
TA = +25°C
1.0
Allegro MicroSystems, Inc. reserves the right to make, from time to
time, such departures from the detail specifications as may be required
to permit improvements in the design of its products.
0.3 The information included herein is believed to be accurate and
TA = 0°C
reliable. However, Allegro MicroSystems, Inc. assumes no responsibil-
ity for its use; nor for any infringements of patents or other rights of third
0.1 parties which may result from its use.
0 5.0 10 15 20
REVERSE VOLTAGE IN VOLTS
Dwg. GD-004
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1991, 1995, Allegro MicroSystems, Inc.


Part Number A8920SLR
Description DUAL SCHOTTKY DIODE
Maker Allegro MicroSystems
Total Page 2 Pages
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