A8287 ALLEGRO [Allegro MicroSystems], A8287 Datasheet - Page 14

• Manufacturer Part Number: A8287
• Description: LNB Supply and Control Voltage Regulator
• Manufacturer: ALLEGRO [Allegro MicroSystems]

Overtemperature and Overcurrent I
T
SDA
IRQ
J
SDA
V
IRQ
I
LNB
LNB
LNB output disabled
LNB Output Disabled
Response to Overcurrent fault condition using single byte read
Response to Overtemperature fault condition using multiple byte read
Master Responds to IRQ
Reads Status continuously
TSD = 1
DIS = 1
S
T
Master Responds to IRQ
Reads Status
OCP = 1
DIS = 1
S
T
ADR
ADR
Overtemperature
R
R
A
A
READ
2
READ
C Sequences
A
reset
OCP
N
READ
S
P
LNB Supply and Control Voltage Regulator
A
www.allegromicro.com
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
READ
Master Writes
Re-enables LNB
output
S
T
ADR
A
READ
W
A
reset
TSD
WRITE
A
TSD = 0
DIS = 1
READ
A
LNB output enabled
S
P
N
S
P
Master Polls
Reads Status
OCP = 0
DIS = 0
S
T
ADR
Master Writes
Re-enables LNB
output
S
T
A8285/A8287
ADR
R
A
T
T
W
LNB ouput enabled
JMAX
JMAX
READ
A
WRITE
- ∆ T
N
S
P
J
A
S
P
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