AK8778 - Hall-Effect
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 connected to VSS.
Note Open drain Open drain Absolute Maximum Ratings Table 3.
Absolute
[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.
The AK
AK8778 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] Bloc
