A1181LUA-T datasheet, PDF - EEWORLD Datasheet

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A1181LUA-T: DescriptionSPECIALTY ANALOG CIRCUIT, PSIP3; CategoryAnalog mixed-signal IC The signal circuit; File Size356KB，16 Pages; ManufacturerAllegro; Websitehttp://www.allegromicro.com/; Environmental Compliance

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A1181LUA-T Overview

SPECIALTY ANALOG CIRCUIT, PSIP3

A1181LUA-T Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Allegro
Parts packaging code	SIP
package instruction	ZIP,
Contacts	3
Reach Compliance Code	compli
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT
JESD-30 code	R-PSIP-T3
JESD-609 code	e3
length	4.105 mm
Number of functions	1
Number of terminals	3
Maximum operating temperature	150 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	ZIP
Package shape	RECTANGULAR
Package form	IN-LINE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	5.26 mm
Maximum supply voltage (Vsup)	24 V
Minimum supply voltage (Vsup)	3.5 V
Nominal supply voltage (Vsup)	5 V
surface mount	NO
technology	BICMOS
Temperature level	AUTOMOTIVE
Terminal surface	Matte Tin (Sn)
Terminal form	THROUGH-HOLE
Terminal pitch	1.27 mm
Terminal location	SINGLE
Maximum time at peak reflow temperature	NOT SPECIFIED
width	1.52 mm

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A1180/81/82/83

Sensitive Two-Wire Field-Programmable Chopper-Stabilized

Unipolar Hall-Effect Switches

The A1180, A1181, A1182, and A1183 devices are sensitive, two-wire, unipolar,

Hall effect switches. The operate point, B

, can be

ﬁ

eld-programmed, after

ﬁ

nal

packaging of the sensor and placement into the application. This advanced feature

allows the optimization of the sensor switching performance, by effectively

accounting for variations caused by mounting tolerances for the device and the

target magnet.

This family of devices are produced on the Allegro MicroSystems advanced

BiCMOS wafer fabrication process, which implements a patented, high-frequency,

chopper-stabilization technique that achieves magnetic stability and eliminates

the offsets that are inherent in single-element devices exposed to harsh applica-

tion environments. Commonly found in a number of automotive applications,

the A1180-83 family of devices are utilized to sense: seat track position, seat belt

buckle presence, hood/trunk latching, and shift selector position.

Two-wire unipolar switches are particularly advantageous in price-sensitive appli-

cations, because they require one less wire than the more traditional open-collec-

tor output switches. Additionally, the system designer gains inherent diagnostics

because output current normally

ﬂ

ows in either of two narrowly-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

ﬁ

eld of sufﬁcient strength; and switch

LOW

otherwise, including

when there is no signiﬁcant magnetic

ﬁ

eld present. The A1180 and A1182 have

inverted output current levels: switching

LOW

in the presence of a south polarity

magnetic

ﬁ

eld 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.

Package LH, 3-pin SOT

1. VCC

2. No connection

3. GND

Package UA, 3-pin SIP

1. VCC

2. GND

3. GND

ABSOLUTE MAXIMUM RATINGS

Supply Voltage, V

..........................................

28 V

Reverse-Supply Voltage, V

RCC

........................

–18 V

Magnetic Flux Density, B .........................Unlimited

Operating Temperature

Ambient, T

, Range E..................

–40ºC to 85ºC

Ambient, T

, Range L................

–40ºC to 150ºC

Maximum Junction, T

J(max)

........................165ºC

Storage Temperature, T

..................

–65ºC to 170ºC

Features and Beneﬁts

Chopper stabilization

Low switchpoint drift over operating

temperature range

Low stress sensitivity

Field-programmable for optimized

switchpoints

On-chip protection

Supply transient protection

Reverse-battery protection

On-board voltage regulator

3.5 V to 24 V operation

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

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

www.allegromicro.com

A1180-DS, Rev. 2

A1181LUA-T Related Products

	A1181LUA-T	A1180EUA-T	A1181ELHLT-T	A1181LLHLT-T	A1181LLHLT
Description	SPECIALTY ANALOG CIRCUIT, PSIP3	SPECIALTY ANALOG CIRCUIT, PSIP3	SPECIALTY ANALOG CIRCUIT, PSIP3	SPECIALTY ANALOG CIRCUIT, PSIP3	SPECIALTY ANALOG CIRCUIT, PDSO3
Is it Rohs certified?	conform to	conform to	conform to	conform to	incompatible
Maker	Allegro	Allegro	Allegro	Allegro	Allegro
Parts packaging code	SIP	SIP	SOT-23	SOT-23	SOT-23
package instruction	ZIP,	ULTRA MINI, LEAD FREE, SIP-3	MINIATURE, LEAD FREE, SOT-23W, 3 PIN	TSSOP,	TSSOP,
Contacts	3	3	3	3	3
Reach Compliance Code	compli	unknow	unknow	compli	compli
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT	ANALOG CIRCUIT	ANALOG CIRCUIT	ANALOG CIRCUIT	ANALOG CIRCUIT
JESD-30 code	R-PSIP-T3	R-PSIP-T3	R-PDSO-G3	R-PDSO-G3	R-PDSO-G3
JESD-609 code	e3	e3	e3	e3	e0
length	4.105 mm	4.105 mm	2.92 mm	2.92 mm	2.92 mm
Number of functions	1	1	1	1	1
Number of terminals	3	3	3	3	3
Maximum operating temperature	150 °C	85 °C	85 °C	150 °C	150 °C
Minimum operating temperature	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	ZIP	ZIP	TSSOP	TSSOP	TSSOP
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	IN-LINE	IN-LINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260	260	260	260	240
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	5.26 mm	5.26 mm	1.17 mm	1.17 mm	1.17 mm
Maximum supply voltage (Vsup)	24 V	24 V	24 V	24 V	24 V
Minimum supply voltage (Vsup)	3.5 V	3.5 V	3.5 V	3.5 V	3.5 V
Nominal supply voltage (Vsup)	5 V	5 V	5 V	5 V	5 V
surface mount	NO	NO	YES	YES	YES
technology	BICMOS	BICMOS	BICMOS	BICMOS	BICMOS
Temperature level	AUTOMOTIVE	INDUSTRIAL	INDUSTRIAL	AUTOMOTIVE	AUTOMOTIVE
Terminal surface	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	TIN LEAD
Terminal form	THROUGH-HOLE	THROUGH-HOLE	GULL WING	GULL WING	GULL WING
Terminal pitch	1.27 mm	1.27 mm	0.95 mm	0.95 mm	0.95 mm
Terminal location	SINGLE	SINGLE	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED	10	40	40	30
width	1.52 mm	1.52 mm	1.975 mm	1.975 mm	1.975 mm

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