A1180LLHLT Allegro Microsystems Inc, A1180LLHLT Datasheet - Page 10
![IC SWITCH HALL EFFECT UNI SOT-23](/photos/19/49/194943/620-sot-23w_sml.jpg)
A1180LLHLT
Manufacturer Part Number
A1180LLHLT
Description
IC SWITCH HALL EFFECT UNI SOT-23
Manufacturer
Allegro Microsystems Inc
Type
Unipolar Switchr
Datasheet
1.A1180EUA.pdf
(16 pages)
Specifications of A1180LLHLT
Sensing Range
60G ~ 200G Trip - Programmable, Fixed Release
Voltage - Supply
3.5 V ~ 24 V
Current - Supply
5mA
Output Type
Digital, Open Collector
Features
Programmable
Operating Temperature
-40°C ~ 150°C
Package / Case
SOT-23W
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Output (max)
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
A1180LLHLT -40 C-150 C
Manufacturer:
SAMSUNG
Quantity:
160 000
A1180, A1181,
A1182,
For additional general application information, visit the Allegro
MicroSystems Web site at www. allegromicro.com.
Typical Application Circuit
The A118x family of devices must be protected by an external
bypass capacitor, C
and the ground, GND, of the device. C
noise and the noise generated by the chopper-stabilization func-
tion. As shown in fi gure 3, a 0.01 μF capacitor is typical.
Installation of C
the A118x pins are no greater than 5 mm in length.
All high-frequency interferences conducted along the supply
lines are passed directly to the load through C
only to protect the A118x internal circuitry. As a result, the load
ECU (electronic control unit) must have suffi cient protection,
other than C
A series resistor on the supply side, R
nation with C
information on EMC is provided on the Allegro MicroSystems
Web site.)
When determining the minimum V
device, the voltage drops across R
R
R
SENSE
SENSE
, must be taken into consideration. The typical value for
is approximately 100 Ω.
and
BYP
BYP
, installed in parallel with the A118x.
BYP
A1183
, creates a fi lter for EMI pulses. (Additional
BYP
must ensure that the traces that connect it to
, connected between the supply, VCC,
S
Chopper-Stabilized Unipolar Hall Effect Switches
CC
and the ECU sense resistor,
S
requirement of the A118x
BYP
(not shown), in combi-
reduces both external
BYP
, and it serves
Application Information
Sensitive Two-Wire Field-Programmable
Figure 3. Typical application circuit
V+
A
GND
A118x
ECU
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
VCC
R
GND
SENSE
A
B
Package UA Only
Maximum separation 5 mm
B
B
C
0.01 uF
BYP
9