Product Overview
The APS12625 and APS12626 are dual ultrasensitive Hall-effect latches designed for use with ring magnets. They feature vertical and planar Hall elements with orthogonal sensing axes, providing 90 of phase separation independent of magnet pole spacing and air gap. This eliminates the need for target optimization, offering flexibility in mechanical design. The APS12625 provides Speed and Direction outputs, while the APS12626 offers quadrature outputs (Channel A/B). A unique power-cycling restoration feature (-P option) prevents accumulation of lost counts/pulses. These devices are automotive grade, qualified per AEC-Q100 with high junction temperature capability and output short-circuit protection.
Product Attributes
- Brand: Allegro MicroSystems
- Certifications: ISO 26262 / ASIL A functional safety compliance, AEC-Q100 Qualified
- Material: BiCMOS process
- Origin: U.S.A.
- Package: 5-Pin SOT23-W (Suffix LH)
- RoHS Compliant: Yes
Technical Specifications
| Device | Output Type | Sensing Axes | Operating Voltage | Max Junction Temp | Key Features |
|---|
| APS12625 | Speed/Direction | XY, ZX, or ZY | 2.8 to 5.5 V | 175C | Speed and Direction outputs, -P option for power-cycling restoration |
| APS12626 | Quadrature (A/B) | XY, ZX, or ZY | 2.8 to 5.5 V | 175C | Quadrature outputs, -P option for power-cycling restoration |
Electrical Characteristics
| 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 |
| Output Short-Circuit Current Limit | IOM | VDD = 5.5 V, TJ TJ(max) | 15 | | 45 | mA |
| Power-On Time (Both outputs) | tON | APS12625 | | 150 | 300 | s |
| Power-On Time (Both outputs) | tON | APS12626 | | 50 | 100 | s |
Magnetic Characteristics
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
|---|
| Operate Point | BOP(A), BOP(B) | TC = 0, TA = 25C | 11 | 25.0 | 41 | G |
| Release Point | BRP(A), BRP(B) | TC = 0, TA = 25C | 41 | 25.0 | 11 | G |
| Hysteresis | BHYS(A), BHYS(B) | TC = 0, TA = 25C | 35 | 50.0 | 66 | G |
| Temperature Coefficient | TC | TC = 0, APS12625-F, APS12626-F | | 0.17 | | % / C |
| Temperature Coefficient | TC | TC = 1, APS12625, APS12626 | | 0 | | % / C |
