A3260LT 데이터 시트보기 (PDF) - Allegro MicroSystems

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A3260LT

2-WIRE, CHOPPER-STABILIZED, PRECISION HALL-EFFECT BIPOLAR SWITCH

Allegro MicroSystems 

3260

2-WIRE, CHOPPER-STABILIZED,

PRECISION HALL-EFFECT BIPOLAR SWITCH

Suffix Code 'LH' Pinning

3

NC

1

2

Dwg. PH-003-5

Pinning is shown viewed from branded side.

ADVANCE INFORMATION

(subject to change without notice)

June 30, 2000

The A3260-- Hall-effect bipolar switch is an extremely

temperature-stable and stress-resistant sensor especially suited for

operation over extended temperature ranges to +150°C. Superior

high-temperature performance is made possible through dynamic

offset cancellation, which reduces the residual offset voltage normally

caused by device overmolding, temperature dependencies, and thermal

stress.

The device includes on a single silicon chip a voltage regulator,

Hall-voltage generator, small-signal amplifier, chopper stabilization,

Schmitt trigger, and a constant-current open-collector output. A south

pole of sufficient strength will turn the output OFF. An on-board

regulator permits operation with supply voltages of 3.5 to 24 volts.

Noise radiation is limited by control of the output current slew rate.

The first character of the part number suffix determines the device

operating temperature range; suffix ‘E–’ is -40°C to +85°C and ‘L–’ is

-40°C to +150°C. Three package styles provide a magnetically opti-

mized package for most applications. Suffix ‘–LH’ is a miniature low-

profile surface-mount package, ‘–LT’ is a miniature SOT-89/TO-

243AA transistor package for surface-mount applications; while suffix

‘–UA’ is a three-lead ultra-mini-SIP for through-hole mounting.

ABSOLUTE MAXIMUM RATINGS

at TA=+25°C

Supply Voltage, VCC ........................... 27 V

Reverse Battery Voltage, VRCC .......... -16 V

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

Package Power Dissipation, PD . See Graph

Junction Temperature, TJ ............... +170°C

Operating Temperature Range, TA

Suffix ‘E–’ .................. -40°C to +85°C

Suffix ‘L–’ ................ -40°C to +150°C

Storage Temperature Range,

TS .............................. -65°C to +170°C

FEATURES

I Internal Current Regulator for 2-Wire Operation

I Output Slew Rate Controlled

I Resistant to Physical Stress

I Superior Temperature Stability

I Operation From Unregulated Supply

I Reverse Battery Protection

I Solid-State Reliability

I Small Size

Always order by complete part number: the prefix 'A' + the basic four-digit

part number + a suffix to indicate operating temperature range +

a suffix to indicate package style, e.g., A3260ELH .

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