A1182 ALLEGRO [Allegro MicroSystems], A1182 Datasheet

no-image

A1182

Manufacturer Part Number
A1182
Description
Two-Wire, Programmable, Chopper-Stabilized, Unipolar Hall-Effect Switch
Manufacturer
ALLEGRO [Allegro MicroSystems]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
A118285
Manufacturer:
HITACHI/日立
Quantity:
20 000
Supply Voltage
Reverse-Battery Voltage
Magnetic Flux Density
Package Power Dissipation
Junction Temperature, T
Operating Temperature Range, T
Storage Temperature Range
1
The “LH”
See typical application drawing for UA pinning.
B …………………………………… Unlimited
V
V
UA…………………………………. 206 °C/W
LH
Suffix “E” …………….……. - 40 °C to + 85 °C
Suffix “L” …………………. - 40 °C to + 150 °C
T
CC
RB
S
SUBJECT TO CHANGE WITHOUT NOTICE
1
………………………… -65 °C to +170 °C
ABSOLUTE MAXIMUM RATINGS
……………………………….….248 °C/W
……………………………………… -18 V
…………………………………….. 26.5 V
PPD is based on a 0.062" thick FR4, single-sided board using 2 oz. copper, with a 0.55 mm
PRELIMINARY DATA SHEET
J
……………….. +170°C
ja,
A
Preliminary Data Sheet
A1180 – A1184
for use in high-temperature applications. This device uses a patented high
frequency chopper-stabilization technique on Allegro's new DABIC5
BiCMOS wafer fabrication process to achieve magnetic stability and to
eliminate offset inherent in single-element devices and from harsh-
application environments.
function to allow for external trimming of the operate point.
programming is performed after final packaging of the sensor and
placement of the Single In-Line Package (SIP) into the application. This
advanced feature allows for optimization of sensor switching performance
by effectively accounting for variations caused by magnet and SIP
placement tolerances.
the power supply protects against over-voltage conditions on the supply
line.
will switch HIGH in the presence of a sufficiently large south-pole magnetic
field and will switch LOW with the removal of the field. The A1180/2 has
the opposite polarity as the others, switching LOW in the presence of a
sufficient magnetic field and HIGH with the removal of the field.
most applications.
surface-mount applications; suffix “UA” is a three-lead ultra-mini Single
Inline Package (SIP) for through-hole mounting.
Programming software and/or hardware demonstration kits also available
see ASEK-01 on the Allegro web site, www.allegromicro.com.
FEATURES / BENEFITS
The A118X is a two-wire, unipolar, Hall-effect switch family designed
These devices provide on-chip transient protection. A zener clamp on
The output of the A118X FAMILY, with the exception of the A1180/2,
Two package styles provide a magnetically optimized package for
Factory programmed versions also available, see A1140/42/43/45.
Chopper Stabilization
s Extremely low switch-point drift
s Low stress sensitivity
One-time external programmability
s Operate Point
On-chip Protection
s Supply transient protection
s Robust ESD/EMC protection
s Reverse-battery protection
On-board Voltage Regulator
s 3.8 V to 24 V operation
The A118X FAMILY of devices incorporates a programmability
Two-Wire, Programmable, Chopper-Stabilized,
Suffix “LH” is a miniature low profile package for
Order by complete part number (i.e. A1182LUA).
2
area of copper attached to the ground lead.
Unipolar Hall-Effect Switch
The

Related parts for A1182

A1182 Summary of contents

Page 1

... Extremely low switch-point drift s Low stress sensitivity One-time external programmability s Operate Point On-chip Protection s Supply transient protection s Robust ESD/EMC protection s Reverse-battery protection On-board Voltage Regulator s 3 operation Unipolar Hall-Effect Switch Order by complete part number (i.e. A1182LUA). 2 area of copper attached to the ground lead. The ...

Page 2

... TWO-WIRE, PROGRAMMABLE, UNIPOLAR HALL-EFFECT SWITCH FAMILY (PRELIMINARY INFORMATION – SUBJECT TO CHANGE) Valid over operating temperature range unless otherwise noted. Part Number Characteristics ELECTRICAL CHARACTERISTICS A118X FAMILY Supply Voltage A1182/3/4 Supply Current 2 A1180/1 Supply Current Output Rise Time Output Fall Time A118X ...

Page 3

TWO-WIRE, PROGRAMMABLE, UNIPOLAR HALL-EFFECT SWITCH FAMILY (PRELIMINARY INFORMATION – SUBJECT TO CHANGE) Program / Lock Programmmin Logic g AMP Clock/Logi c A1180/2 Hysteresis Curve +I IccHigh Flux Density 0 Rev. 1.8 25 April 2003 Page 3 ...

Page 4

TWO-WIRE, PROGRAMMABLE, UNIPOLAR HALL-EFFECT SWITCH FAMILY (PRELIMINARY INFORMATION – SUBJECT TO CHANGE) All data is the average of 1 Lot, >1000 Units Bop 85G trim - Temperature (C) ...

Page 5

TWO-WIRE, PROGRAMMABLE, UNIPOLAR HALL-EFFECT SWITCH FAMILY (PRELIMINARY INFORMATION – SUBJECT TO CHANGE) Chopper-Stabilization Technique. A limiting factor for switch point accuracy when using Hall effect technology is the small signal voltage developed across the Hall plate. This voltage is proportionally ...

Page 6

TWO-WIRE, PROGRAMMABLE, UNIPOLAR HALL-EFFECT SWITCH FAMILY (PRELIMINARY INFORMATION – SUBJECT TO CHANGE) The operate points are programmed by serially addressing the devices through the supply terminal V correct operate point is determined, the device programming bits are permanently blown, and ...

Page 7

TWO-WIRE, PROGRAMMABLE, UNIPOLAR HALL-EFFECT SWITCH FAMILY (PRELIMINARY INFORMATION – SUBJECT TO CHANGE) …PROGRAMMING PROTOCOL CONT INUED Addressing. The magnetic operate point (Bop) is adjustable using 5 bits or 31 addresses. The 31 addresses are sequentially selected (Figure 2) until the ...

Page 8

TWO-WIRE, PROGRAMMABLE, UNIPOLAR HALL-EFFECT SWITCH FAMILY (PRELIMINARY INFORMATION – SUBJECT TO CHANGE) Applications necessary that an external bypass capacitor be connected between the supply and ground of the device to reduce both external noise and noise generated by ...

Page 9

TWO-WIRE, PROGRAMMABLE, UNIPOLAR HALL-EFFECT SWITCH FAMILY (PRELIMINARY INFORMATION – SUBJECT TO CHANGE) DEVICE QUALIFICATION PROGRAM Test Name Test Conditions Pre/Post Test Ta = room, hot, cold High Temperature Ta = 150° 170°C Operating Life (HTOL) High Temperature Bake ...

Page 10

TWO-WIRE, PROGRAMMABLE, UNIPOLAR HALL-EFFECT SWITCH FAMILY (PRELIMINARY INFORMATION – SUBJECT TO CHANGE) Due to internal power consumption, temperature of the IC, Tj, is higher than the ambient environment temperature, Ta. To ensure that the device does not operate above the ...

Page 11

TWO-WIRE, PROGRAMMABLE, UNIPOLAR HALL-EFFECT SWITCH FAMILY (PRELIMINARY INFORMATION – SUBJECT TO CHANGE) Rev. 1.8 25 April 2003 Page 11 115 Northeast Cutoff, Box 15036 Worcester, Massachus etts 01615-0036 (508) 853-5000 Copyright © 1993, 1995 Allegro MicroSystems, Inc. ...

Page 12

TWO-WIRE, PROGRAMMABLE, UNIPOLAR HALL-EFFECT SWITCH FAMILY (PRELIMINARY INFORMATION – SUBJECT TO CHANGE) Rev. 1.8 25 April 2003 Page 12 115 Northeast Cutoff, Box 15036 Worcester, Massachus etts 01615-0036 (508) 853-5000 Copyright © 1993, 1995 Allegro MicroSystems, Inc. ...

Page 13

TWO-WIRE, PROGRAMMABLE, UNIPOLAR HALL-EFFECT SWITCH FAMILY (PRELIMINARY INFORMATION – SUBJECT TO CHANGE) Rev. 1.8 25 April 2003 Page 13 115 Northeast Cutoff, Box 15036 Worcester, Massachus etts 01615-0036 (508) 853-5000 Copyright © 1993, 1995 Allegro MicroSystems, Inc. ...

Page 14

TWO-WIRE, PROGRAMMABLE, UNIPOLAR HALL-EFFECT SWITCH FAMILY (PRELIMINARY INFORMATION – SUBJECT TO CHANGE) Rev. 1.8 25 April 2003 Page 14 The products described herein are manufactured under one or more of the following U.S. patents: 5,045,920; 5,264,783; 5,442,283; 5,389,889; 5,581,179; 5,517,112; ...

Related keywords