A1180 datasheet(2/15 Pages) ALLEGRO

2 / 15 page

Sensitive Two-Wire Field-Programmable

Chopper-Stabilized Unipolar Hall Effect Switches

A1180, A1181,

A1182, and A1183

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

Selection Guide

Part Number

Pb-free1

Packing2

Mounting

Ambient, TA

(°C)

Output

South (+) Field3

Supply Current at Low

Output, ICC(L) (mA)

A1182ELHLT-T

Yes

7-in. reel, 3000 pieces/reel

Surface mount

–40 to 85

Low

5 to 6.9

A1182EUA-T

Yes

Bulk, 500 pieces/bag

4-pin SIP through hole

A1182LLHLT-T

Yes

7-in. reel, 3000 pieces/reel

Surface mount

–40 to 150

A1182LUA-T

Yes

Bulk, 500 pieces/bag

4-pin SIP through hole

A1183ELHLT-T

Yes

7-in. reel, 3000 pieces/reel

Surface mount

–40 to 85

High

A1183EUA-T

Yes

Bulk, 500 pieces/bag

4-pin SIP through hole

A1183LLHLT-T

Yes

7-in. reel, 3000 pieces/reel

Surface mount

–40 to 150

A1183LUA-T

Yes

Bulk, 500 pieces/bag

4-pin SIP through hole

1Pb-based variants are being phased out of the product line.

a. Certain variants cited in this footnote are in production but have been determined to be LAST TIME BUY. This classification indicates that sale of this device is cur-

rently restricted to existing customer applications. The device should not be purchased for new design applications because obsolescence in the near future is probable.

Samples are no longer available. Status change: October 31, 2006. Deadline for receipt of LAST TIME BUY ORDERS: April 27, 2007. These variants include: A1180EUA,

A1180LLHLT, A1180LUA, A1182ELHLT, A1182EUA, A1182LUA, A1183EUA, and A1183LLHLT.

b. Certain variants cited in this footnote are in production but have been determined to be NOT FOR NEW DESIGN. This classification indicates that sale of this device is

currently restricted to existing customer applications. The device should not be purchased for new design applications because obsolescence in the near future is probable.

Samples are no longer available. Status change: May 1, 2006. These variants include: A1180ELHLT, A1181ELHLT, A1181EUA, A1181LLHLT, A1181LUA , A1182LLHLT,

A1183ELHLT, and A1183LUA.

2Contact Allegro for additional packing options.

3South (+) magnetic fields must be of sufficient strength.

4The sensors listed in this footnote are available only in limited distribution. Interested customers should contact the appropriate sales person or field application engineer

for more information on availability. These variants include: A1180ELHLT-T, A1180EUA-T, A1180LLHLT-T, A1180LUA-T, A1181ELHLT-T, A1181EUA-T, A1181LLHLT-T, and

A1181LUA-T.

switches. Additionally, the system designer gains inherent diagnos-

tics because output current normally ﬂows in either of two nar-

rowly-speciﬁed ranges. Any output current level outside of these

two ranges is a fault condition. The A1180-83 family of devices

also features on-chip transient protection, and a Zener clamp to

protect against overvoltage conditions on the supply line.

The output currents of the A1181 and A1183 switch HIGH in the

presence of a south polarity magnetic ﬁeld of sufﬁcient strength;

and switch LOW otherwise, including when there is no signiﬁcant

magnetic ﬁeld present. The A1180 and A1182 have inverted out-

put current levels: switching LOW in the presence of a south polar-

ity magnetic ﬁeld of sufﬁcient strength, and HIGH otherwise. The

devices also differ in their speciﬁed LOW current supply levels.

Both devices are offered in two package styles: LH, a SOT-23W

miniature low-proﬁle package for surface-mount applications,

and UA, a three-lead ultramini Single Inline Package (SIP) for

through-hole mounting. Each package is available in a lead (Pb)

free version (sufﬁx, –T) with 100% matte tin plated leadframe.

Factory-programmed versions are also available. Refer to: A1140,

A1141, A1142, A1143, A1145, and A1146.

Absolute Maximum Ratings

Characteristic

Symbol

Notes

Rating

Units

Supply Voltage

VCC

Reverse Supply Voltage

VRCC

–18

Magnetic Flux Density

Unlimited

Operating Ambient Temperature

Range E

–40 to 85

ºC

Range L

–40 to 150

ºC

Maximum Junction Temperature

TJ(max)

165

ºC

Storage Temperature

Tstg

–65 to 170

ºC

Description (continued)

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