A2550 Allegro MicroSystems, Inc., A2550 Datasheet - Page 9
A2550
Manufacturer Part Number
A2550
Description
Relay Driver With 5 V Regulator For Automotive Applications
Manufacturer
Allegro MicroSystems, Inc.
Datasheet
1.A2550.pdf
(15 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
A2550LPT
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
Part Number:
A2550N
Manufacturer:
SONY/索尼
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A2550
VREG5
CPOR
NPOR
OUTx
CWD
WDI
1.
2.
3.
4.
outputs enabled
Missing watchdog detected (WDI low).
NPOR pulses generated periodically.
NPOR inactive, but outputs not enabled until watchdog detected.
Missing watchdog detected (WDI low, steps 2 and 3 repeat).
Timing Diagram: Watchdog Monitoring
t
WDR
1
t
WD
2
Relay Driver with 5 V Regulator
3
for Automotive Applications
~INx
internal V
ref
4
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
9
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