A1182LUA Allegro Microsystems Inc, A1182LUA Datasheet - Page 14

• Manufacturer Part Number: A1182LUA
• Description: IC SWITCH HALL EFFECT UNI 3-SIP
• Manufacturer: Allegro Microsystems Inc
• Type: Unipolar Switchr

Specifications of A1182LUA

• Sensing Range: 60G ~ 200G Trip - Programmable, Fixed Release
• Voltage - Supply: 3.5 V ~ 24 V
• Current - Supply: 6.9mA
• Output Type: Digital, Open Collector
• Features: Programmable
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 3-SIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Output (max): -

A1180, A1181,
A1182,
Enabling Addressing Mode.
keying sequence used to enable the bitfi eld addressing mode. As
shown in fi gure 7, this segment consists of one short V
one V
ruptions. This sequence is designed to prevent the device from
being programmed accidentally, such as by noise on the supply
line.
Address Selection.
target bitfi eld address, is indicated by a series of V
shown in fi gure 8.
Lock Bit Programming.
is programmed, and all of the corresponding bitfi eld-level fuses
are blown, the device-level fuse should be blown. To do so, the
lock bit (bitfi eld address 32) should be encoded as 1 and have
its fuse blown. This is done in the same manner as permanently
setting the other bitfi elds, as shown in fi gure 9.
PM
pulse, and one short V
and
A1183
After addressing mode is enabled, the
After the desired B
The fi rst segment of code is a
PH
Chopper-Stabilized Unipolar Hall Effect Switches
pulse, with no supply inter-
OP
calibration value
PM
Sensitive Two-Wire Field-Programmable
pulses, as
PH
pulse,
V
V
V
V
V
V
V
V
V
PM
PH
PM
PH
PH
PM
PL
PL
PL
0
0
0
V+
V+
V+
Figure 9. Pulse sequence to encode lock bit
Figure 7. Addressing mode enable pulse sequence
Figure 8. Pulse sequence to select addresses
Falling edge of final B
Enable
Address 1
115 Northeast Cutoff
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Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Address 2
OP
Encode Lock Bit
address digit
32 pulses
Address
Address n ( ≤ 31)
t
t
Blow
t
13