A1699: Two-Wire, Differential, Vibration-Resistant Sensor IC with Speed and Direction Output

Description

The A1699 is an optimized Hall-effect integrated circuit (IC) that provides a user-friendly solution for direction detection and true zero-speed, digital ring-magnet sensing. The small package can be easily assembled and used in conjunction with a wide variety of target sensing applications.

The IC employs patented algorithms for the special operational requirements of automotive transmission applications. The speed and direction of the target are communicated through a variable pulse-width output protocol. The A1699 is particularly adept at handling vibration without sacrificing maximum air gap capability or creating any erroneous direction information. The advanced vibration detection algorithm will systematically calibrate the sensor IC on the initial magnetic poles of true target rotation and not on vibration, always guaranteeing an accurate signal in running mode.

Advanced signal processing and innovative algorithms make the A1699 an ideal solution for a wide range of speed- and direction-sensing needs.

The A1699 is provided in a 2-pin miniature SIP package suffix UB) that is lead (Pb) free, with tin leadframe plating. The UB package includes an IC and capacitor integrated into a single overmolded package to reduce external EMI protection requirements.

Featured Video:

Differential Speed Sensor System Solutions Video

Differential Speed Sensor System Solutions

Seth Prentice, Strategic Marketing Manager for Allegro MicroSystems Speed Sensor IC group, discusses IC solutions for designing speed sensing applications including automotive transmissions, washing machine drum speeds, and fork lift positioning requiring reliable consistent output signals. Watch Video

Top Features

  • Integrated IC and capacitor, single overmolded package to reduce external EMI-protection requirements
  • Two-wire, pulse-width output protocol
  • Highly configurable output protocol options
  • Digital output representing target profile
  • Speed and direction information of target
  • Vibration tolerance
    • Small-signal lockout for small amplitude vibration
    • Proprietary vibration detection algorithms for large amplitude vibration
  • Air-gap-independent switchpoints
  • Large operating air gap capability
  • Undervoltage lockout
  • True zero-speed operation
  • Wide operating voltage range
  • AEC-Q100 automotive qualified
  • Robust test-coverage capability with Scan Path and IDDQ measurement

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check Stock
A1699LUB-FSWPH-T 2-lead SIP -40°C to 150°C Yes View Data Contact your
local sales rep
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Distributor Stock
A1699LUBTN-FSIBH-T 2-lead SIP -40°C to 150°C Yes View Data Contact your
local sales rep
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Distributor Stock
A1699LUBTN-FSWPH-T 2-lead SIP -40°C to 150°C Yes View Data Contact your
local sales rep
Check
Distributor Stock
A1699LUBTN-RSIBH-T 2-lead SIP -40°C to 150°C Yes View Data Contact your
local sales rep
Check
Distributor Stock
A1699LUBTN-RSWPH-T 2-lead SIP -40°C to 150°C Yes View Data Contact your
local sales rep
Check
Distributor Stock

Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of Allegro’s product can reasonably be expected to cause bodily harm.

Allegro 2-Pin SIP UB Package

Packaging

The A1699 is available in a lead (Pb) free 2-pin SIP (Suffix UB) package with a 100% matte tin plated leadframe.

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