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A8603KESTR-R Datasheet(PDF) 30 Page - Allegro MicroSystems

Part # A8603KESTR-R
Description  Multiple-Output Regulator for Automotive LCD Displays
PDF  42 Pages
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A8603KESTR-R Datasheet(HTML) 30 Page - Allegro MicroSystems

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Multiple-Output Regulator for
Automotive LCD Displays
A8603
30
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Sleep
Sleep
EN = High and V
IN > UVLO
2.8 V Internal Rail
(V
BIAS) Enabled
V
BIAS > 2.6 V
Enable Internal
References
and Oscillator
System Controller Issues
IC Commands
2
ICReady = High
Initialize Digital
Block. Assert FAULT
Flag to Signal IC
is Ready to Receive
IC Commands.
2
FAULT= Low
Waiting for IC
2
Commands from
System Controller
Reset All IC
2
Registers
Power-DownAll
Regulators in
Sequence
Power-DownAll
Regulators in
Sequence
Fault Occured
EN = L
Fault Monitoring
Fault Diganostics
Normal
Operation
No Faults
Latched Fault
(Group 3)
Non-Latched Fault
(Group 1 and 2)
Power-UpAll
Regulators in
Sequence
System Controller
EnablesAll
Regulators through
IC
2
System Controller
Clears POR Bit and
Programs Each
Regulator
Figure 17: Fault Checking During Startup and Normal Operation



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