Datenblatt-pdf.com


A1172 Schematic ( PDF Datasheet ) - Allegro MicroSystems

Teilenummer A1172
Beschreibung Micropower Ultra-Sensitive Hall-Ef fect Switch
Hersteller Allegro MicroSystems
Logo Allegro MicroSystems Logo 




Gesamt 9 Seiten
A1172 Datasheet, Funktion
A1172
Micropower Ultra-Sensitive Hall-Effect Switch
www.daFtaesMhaetiecutr4orupe.cosowmaernodpeBrateionnefits
Operation with either north or south pole—
no magnetic orientation required during assembly
1.65 to 3.5 V battery operation
Chopper stabilization
Superior temperature stability
Extremely low switchpoint drift
Insensitive to physical stress
Solid state reliability
Small size: WLCSP (1 mm × 1 mm × 0.5 mm)
Complementary, push-pull outputs eliminate need for
pull-up resistor
Package: 4 pin WLCSP (suffix CG)
Description
The A1172 is an ultra-sensitive, pole-independent Hall-effect
switch with a latched digital output. It features operation at
low supply currents and voltages, making it ideal for battery-
operated electronics. The 1.65 to 3.5 V operating supply
voltage and unique clocking algorithm reduce the average
operating power requirements to less than 15 μW with a
2.75 V supply.
The A1172 has two push-pull output structures. Omnipolar
activation for the output function is available on each output
structure. As such, either a north or south pole of sufficient
strength turns the available outputs off or on. The A1172
contains two complementary outputs. Therefore, for a fixed
magnetic field, one output will be in a high voltage state and
one output will be in a low voltage state.
Improved stability is made possible through dynamic offset
cancellation using chopper stabilization, which reduces the
residual offset voltage normally caused by device overmolding,
temperature dependencies, and thermal stress. This device
Not to scale
VDD
Continued on the next page…
Engineering samples available on a limited basis. Contact your local
sales or applications support office for additional information.
Functional Block Diagram
1172-DS
Clock / Logic
Amp
Low-Pass
Filter
GND
Latch
Latch
VOUTPS
VOUTPN






A1172 Datasheet, Funktion
A1172
Micropower Ultra-Sensitive Hall-Effect Switch
www.datasheet4u.com
Period versus Temperature
100
90
VDD = 1.65V
VDD = 2.75V
80 VDD = 3.5V
70
60
50
40
30
20
10
0
-60 -40 -20
0
20 40 60 80 100
TA (°C)
100
90
80
70
60
50
40
30
20
10
0
1
Period versus Supply Voltage
85°C
-40°C
25°C
1.5 2 2.5 3 3.5 4
VCC (V)
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
6

6 Page







SeitenGesamt 9 Seiten
PDF Download[ A1172 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
A1171Micropower Ultrasensitive Hall Effect SwitchAllegro MicroSystems
Allegro MicroSystems
A1172Micropower Ultra-Sensitive Hall-Ef fect SwitchAllegro MicroSystems
Allegro MicroSystems
A1174Ultrasensitive Hall Effect LatchAllegro MicroSystems
Allegro MicroSystems
A1175TDA1175ST Microelectronics
ST Microelectronics
A1175PNP Transistor - 2SA1175NEC
NEC

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche