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AK8778 Datasheet Hall-Effect

Manufacturer: AKM (Asahi Kasei Microdevices)

General Description

of pin name and function Pin No.

Pin name I/O Function 1 VDD Power supply pin 2 TAB (TAB pin) 3 F O Output F (Pulse) pin 4 D O Output D (Direction) pin 5 TAB (TAB pin) 6 VSS Ground pin Note) TAB pins should be conn

Overview

[AK8778] AK8778 Hall Effect IC for Pulse Encoders Overview The AK8778 is a Hall effect latch which detects both “vertical magnetic field” and “horizontal magnetic field” (perpendicular and parallel to the marking side of the package) at the same time.

The pulse output F and direction output D are switched according to the vertical and horizontal magnetic fields applied to the device.

The direction is calculated internally and output D is switched at a rising or falling edge of output F.

Key Features

  •       4.0 to 24V supply voltage operation Low power consumption : 1.4mA(Typ. ) Sensitivity (Vertical, Horizontal) : ±2.5mT(Typ. ) Two outputs : F (Pulse), D (Direction) Small package: SOP-6pin Halogen free MS1467-E-00 1 September 2012 Free Datasheet http://www. datasheet4u. com/ [AK8778] Block Diagram VDD.