A1391SEHLT-T Allegro, A1391SEHLT-T Datasheet - Page 13

• Manufacturer Part Number: A1391SEHLT-T
• Manufacturer: Allegro

A1391, A1392,
A1393, and A1395
C
filter
C
Vbat1
Vbat1
filter
Vbat 1
Vbat1
Supply pin
I/O
Supply pin
I/O
processor
Micro-
processor
Micro-
Supply pin
I/O
processor
processor
I/O
Supply pin
Micro-
Micro-
C
I/O
C
I/O
bypass
bypass
Application Circuit
I/O
I/O
C
C
bypass
bypass
Summary of Single-Device Application Circuits
Vbat2
Vbat2
Vbat2
Vbat2
with Tri-State Output and User Selectable Sleep Mode
GND
GND
VCC
OUT
VCC
OUT
GND
VCC
OUT
GND
VCC
OUT
A139x
A139x
A139x
A139x
Micro Power 3 V Linear Hall Effect Sensor ICs
SLEEP
SLEEP
SLEEP
GND
VREF
GND
GND
VREF
VREF
SLEEP
GND
VREF
Connected to
VCC
Connected to
VCC
Connected to
microprocessor supply
Connected to
microprocessor supply
VREF pin (Ratiometric
A139x device supply,
A139x device supply,
Reference Supply)
Device Pin Connections
Connected to
VCC
Controlled by
microprocessor
Connected to
VCC
Controlled by
microprocessor
A139x device supply,
A139x device supply,
¯ S ¯ ¯ L ¯ ¯ E ¯ ¯ E ¯ ¯ P ¯ pin
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
Ratiometric to device
supply (VCC), and
always valid
Ratiometric to device
supply (VCC), and
controlled by the
microprocessor
Ratiometric to micro-
processor supply, and
always valid
Ratiometric to micro-
processor supply,
and controlled by the
microprocessor
Device Output
13