AK8778B

MP

Sensitivity ±1.7mT. Rotation amount and rotation direction signal output, Hall IC for pulse encoder (latch type)

Sensitivity ±1.7mT. Rotation amount and rotation direction signal output, Hall IC for pulse encoder (latch type)

MP

Description

The AK8778B 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 AK8778B is for use in the incremental pulse encoders or rotational detection systems.

Key Features

  • Detects vertical and horizontal magnetic fields Longitudinal magnetic field and transverse magnetic field can be detected simultaneously.
  • Rotation amount and rotation direction detection Outputs rotation amount (F signal: 1 pulse per magnetic pole) and rotation direction (D signal) at the same time.

Applications

  •                                 Consumer, industrial and in-vehicle equipment.
                                

Specifications

Part Number
AK8778B
Power Supply Voltage (MIN.) [V]
4
Power Supply Voltage (TYP.) [V]

                                
Power Supply Voltage (MAX.) [V]
24
Current Consumption [mA]
3
Output Refresh Period [μsec]
16.7
Sensitivity Bop [mT]
1.7
Sensitivity Brp [mT]
1.7
Output signal
Speed & Dir
Output Stage
Open Drain
Other
Automotive grade
Operating Temperature [℃]
-40 to 125
Device Package
SOP
Number of Pins
6

Product Information

Part Status
MP
Pb Free
Yes
Halogen Free
No
MSL
MSL1
Packaging
TAPE
JEDEC Standard Packaging
Compliant
Minimum Order Quantity [pcs.]
3000
Replacement P/N

                                

Block Diagram

AK8778B Block Diagram