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About AKM
AK8778B
EOL
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)
EOL
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
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Detects vertical and horizontal magnetic fields Longitudinal magnetic field and transverse magnetic field can be detected simultaneously.
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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
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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 |
EOL |
|---|---|
| Pb Free |
Yes |
| Halogen Free |
No |
| MSL |
MSL1 |
| Packaging |
TAPE |
| JEDEC Standard Packaging |
Compliant |
| Minimum Order Quantity [pcs.] |
3000 |
| Replacement P/N |
Block Diagram
