Datasheet > A1367

A1367

更新时间： 2022-02-26 11:15:28

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
27页	845K
描述
Low-Noise, High-Precision, Programmable Linear Hall-Effect Sensor IC

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A1367 数据手册

A1367

Low-Noise, High-Precision, Programmable Linear Hall-Effect Sensor IC

with Regulated Supply, Advanced Temperature Compensation,

and High-Bandwidth (240 kHz) Analog Output

FEATURES AND BENEFITS

DESCRIPTION

• 240 kHz nominal bandwidth achieved via proprietary

packaging and chopper stabilization techniques

• On-board supply regulator with reverse-battery protection

• Proprietary segmented linear temperature compensation

(TC) technology provides a typical accuracy of 1% over

the full operating temperature range

The Allegro™ A1367 programmable linear Hall-effect

current sensor IC has been designed to achieve high accuracy

and resolution without compromising bandwidth. This goal

is achieved through new proprietary linearly interpolated

temperature compensation technology that is programmed

at the Allegro factory and provides sensitivity and offset that

are virtually flat across the full operating temperature range.

Temperature compensation is performed in the digital domain

with integrated EEPROM technology while maintaining a

240 kHz bandwidth analog signal path, making this device

idealforHEVinverter,DC-to-DCconverter,andelectricpower

steering (EPS) applications.

• Customer-programmable, high-resolution offset and

sensitivity trim

• Factory-programmed sensitivity and quiescent

output voltage TC with extremely stable temperature

performance

• High-sensitivity Hall element for maximum accuracy

• Extremely low noise and high resolution achieved via

proprietary Hall element and low-noise amplifier circuits

ThisratiometricHall-effectsensorICprovidesavoltageoutput

thatisproportionaltotheappliedmagneticfield.Thecustomer

can configure the sensitivity and quiescent (zero field) output

voltage through programming on the VCC and output pins,

to optimize performance in the end application. The quiescent

output voltage is user-adjustable, around 50% (bidirectional

configuration) or 10% (unidirectional configuration) of the

supply voltage, V_CC, and the output sensitivity is adjustable

within the range of 0.6 to 6.4 mV/G.

Continued on the next page…

PACKAGE:

4-Pin SIP (suffix KT)

Continued on the next page…

Not to scale

VCC

(Programming)

Programming

Regulator

Undervoltage

Detection

Broken

Ground

Detection

Charge Pump

Pulse Generator

Control

To all

subcircuits

C_BYPASS

Temperature

Sensor

EEPROM and

Control Logic

Active Temp.

Compensation

Sensitivity Control

Offset Control

Output

Clamps

VOUT

(Programming)

Signal Recovery

Push/Pull

Output Driver

C_L

GND

Functional Block Diagram

A1367-DS, Rev. 1

12 3 4 5 6 7...27

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