Product Overview
The APS12625 and APS12626 are dual ultrasensitive Hall-effect latches designed for use with ring magnets. They offer dual vertical and planar Hall elements with orthogonal sensing axes, providing 90 phase separation independent of magnet pole spacing and air gap. This eliminates the need for target optimization, making them highly flexible. The APS12625 provides Speed and Direction outputs, while the APS12626 offers quadrature outputs (Channel A/B). A unique power-cycling restore feature (-P option) prevents accumulation of lost counts/pulses. These devices are automotive-grade, qualified per AEC-Q100 with high junction temperature operation and output short-circuit protection.
Product Attributes
- Brand: Allegro MicroSystems
- Certifications: ISO 26262 / ASIL A, AEC-Q100
- Material: BiCMOS process
- Color: RoHS-compliant, lead (Pb) free, 100% matte tin leadframe plating
Technical Specifications
| Device | Description | Sensing Axes | Output A | Output B | Operating Voltage | Junction Temperature | Package |
|---|
| APS12625 | Dual ultrasensitive Hall-effect latch with Speed and Direction outputs | XY, ZX, ZY options | Speed of target movement | Direction of target movement | 2.8 to 5.5 V | Up to 175C | 5-Pin SOT23-W (LH) |
| APS12626 | Dual ultrasensitive Hall-effect latch with Quadrature outputs | XY, ZX, ZY options | Channel A output | Channel B output | 2.8 to 5.5 V | Up to 175C | 5-Pin SOT23-W (LH) |
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
|---|
| Supply Voltage | VDD | Operating, TJ TJ(max) | 2.8 | | 5.5 | V |
| Supply Current | IDD | | | 3 | 4.5 | mA |
| Output Sink Current | IOUTPUT(SINK) | | | | 10 | mA |
| Operate Point | BOP(A), BOP(B) | TA = 25C | 11 | 25.0 | 41 | G |
| Release Point | BRP(A), BRP(B) | TA = 25C | 41 | 25.0 | 11 | G |
| Hysteresis | BHYS(A), BHYS(B) | TA = 25C | 35 | 50.0 | 66 | G |
| Power-On Time (APS12625) | tON | Both outputs | | 150 | 300 | s |
| Power-On Time (APS12626) | tON | Both outputs | | 50 | 100 | s |
| Characteristic | Symbol | Notes | Rating | Unit |
|---|
| Forward Supply Voltage | VDD | | 6 | V |
| Reverse Supply Voltage | VRDD | | 0.3 | V |
| Maximum Junction Temperature | TJ(MAX) | For 500 hours | 165 | C |
| Storage Temperature | Tstg | | 65 to 170 | C |
| Package Thermal Resistance | RJA | LH-5, 4-layer board | 124 | C/W |
