Product Overview
The APS12625 and APS12626 are dual ultrasensitive Hall-effect latches designed for use with ring magnets. They offer 2D magnetic sensing with vertical and planar Hall elements, providing 90 phase separation that is independent of magnet pole spacing and air gap, eliminating the need for target optimization. These devices are flexible and easy to use, with options for XY, ZX, and ZY sensing axes to accommodate various orientations. 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 lost counts/pulses. They are automotive grade, qualified per AEC-Q100, and operate from 2.8 to 5.5 V with high magnetic sensitivity.
Product Attributes
- Brand: Allegro MicroSystems
- Certifications: ISO 26262 / ASIL A, AEC-Q100
- Material: BiCMOS process
- Color: RoHS-compliant and lead (Pb) free, with 100% matte tin leadframe plating
Technical Specifications
| Device | Output Type | Sensing Axes | Key Features | Operating Voltage | Max Junction Temp |
|---|
| APS12625 | Speed & Direction | XY, ZX, ZY | Dual outputs of speed/direction, Power-cycling restore (-P option) | 2.8 to 5.5 V | 175C |
| APS12626 | Quadrature (A/B) | XY, ZX, ZY | Dual quadrature outputs, Power-cycling restore (-P option) | 2.8 to 5.5 V | 175C |
Electrical Characteristics
| Characteristic | Symbol | Min. | Typ. | Max. | Unit | Notes |
|---|
| Supply Voltage | VDD | 2.8 | | 5.5 | V | Operating |
| Output Leakage Current | IOUTOFF | | | 10 | A | B < BRP |
| Output On Voltage | VOUT(SAT) | | 180 | 500 | mV | IOUT = 2 mA, B > BOP |
| Supply Current | IDD | | 3 | 4.5 | mA | |
| Output Sink Current | IOUTPUT(SINK) | | | 10 | mA | |
| Output Short-Circuit Current Limit | IOM | 15 | | 45 | mA | VDD = 5.5 V, TJ TJ(max) |
| Output Rise Time | tr | | 0.2 | | s | CLOAD = 20 pF, RLOAD = 820 |
| Output Fall Time | tf | | 0.1 | | s | CLOAD = 20 pF, RLOAD = 820 |
| Power-On Time (APS12625) | tON | | 150 | 300 | s | Both outputs |
| Power-On Time (APS12626) | tON | | 50 | 100 | s | Both outputs |
Magnetic Characteristics
| Characteristic | Symbol | Temperature | Min. | Typ. | Max. | Unit | Notes |
|---|
| Operate Point | BOP(A), BOP(B) | TA = 40C | 12 | 27.8 | 44 | G | TC = 0 |
| Operate Point | BOP(A), BOP(B) | TA = 25C | 11 | 25.0 | 41 | G | TC = 0 |
| Operate Point | BOP(A), BOP(B) | TA = 150C | 1 | 19.7 | 39 | G | TC = 0 |
| Release Point | BRP(A), BRP(B) | TA = 40C | 44 | 27.8 | 12 | G | TC = 0 |
| Release Point | BRP(A), BRP(B) | TA = 25C | 41 | 25.0 | 11 | G | TC = 0 |
| Hysteresis | BHYS(A), BHYS(B) | TA = 25C | 35 | 50.0 | 66 | G | TC = 0 |
| Temperature Coefficient | TC | APS12625-F, APS12626-F | | 0.17 | | % / C | |
| Temperature Coefficient | TC | APS12625, APS12626 | | 0 | | % / C | |
