Product Overview
The ATS19200 is an optimized Hall-effect integrated circuit (IC) designed for true zero-speed digital gear tooth sensing in two-wire applications. It integrates a rare-earth pellet and a high-temperature ceramic capacitor in a single overmolded package, enhancing EMC robustness and reducing the need for external protection. The device features an advanced threshold switching algorithm for high accuracy over a wide operating air gap range, and its integrated diagnostics are ASIL B(D) rated, ensuring certified safety design. With built-in EEPROM for device traceability and a two-wire current source output supporting speed and ASIL protocols, the ATS19200 offers a user-friendly solution for applications such as automotive or two-wheeler braking systems.
Product Attributes
- Brand: Allegro MicroSystems
- Package Type: 3-pin SIP (suffix SN)
- Certifications: ASIL B(D)
- Material: Lead (Pb) free package with tin leadframe plating
- Target Material: Low Carbon Steel (for Reference Target 60-0)
Technical Specifications
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| ELECTRICAL CHARACTERISTICS | ||||||
| Supply Voltage | VCC | Operating, TJ < TJ (max) | 4 | 24 | V | |
| Undervoltage Lockout | VCC(UV) | VCC 0 5 V or 5 0 V | 3.5 | 3.95 | V | |
| Reverse Supply Current | IRCC | VCC = VRCC (MAX) | -10 | mA | ||
| Supply Zener Clamp Voltage | VZSUPPLY | ICC = ICC (HIGH) + 3 mA, TA = 25C | 28 | V | ||
| Supply Zener Current | IZSUPPLY | TA = 25C, VCC = 28 V | 19 | mA | ||
| Supply Current (Low-current state) | ICC(LOW) | 5.9 | 8.4 | mA | ||
| Supply Current (High-current state) | ICC(HIGH) | 12 | 16 | mA | ||
| Supply Current Ratio | ICC(HIGH) / ICC(LOW) | Ratio of high current to low current | 1.9 | |||
| ASIL Safety Current | IRESET | -A variant | 1.0 | 3.3 | mA | |
| POWER-ON STATE CHARACTERISTICS | ||||||
| Power-On State | POS | -H variant | ICC(HIGH) | mA | ||
| Power-On State | POS | -L variant | ICC(LOW) | mA | ||
| OUTPUT STAGE | ||||||
| Output Rise Time | tr | Corresponds to measured output slew rate, from 10% to 90% ICC level CSUPPLY, RSENSE = 100 | 0 | 1.5 | s | |
| Output Fall Time | tf | Corresponds to measured output slew rate, from 90% to 10% ICC level CSUPPLY, RSENSE = 100 | 0 | 1.5 | s | |
| PERFORMANCE CHARACTERISTICS | ||||||
| Operating Frequency | fOP | 0 | 5 | kHz | ||
| Operate Point | BOP | % of peak-to-peak BSIG , AGOP within specification | 60 | % | ||
| Release Point | BRP | % of peak-to-peak BSIG , AGOP within specification | 40 | % | ||
| FUNCTIONAL CHARACTERISTICS | ||||||
| Operational Air Gap Range | AGOP | Using Allegro Reference Target 60-0, duty cycle within specification | 0.5 | 2.5 | mm | |
| Extended Operational Air Gap Range | AGEXT | Using Allegro Reference Target 60-0, output switching (no missed edges), duty cycle not guaranteed | 3 | mm | ||
| Allowable User-Induced Differential Offset | BDIFFEXT | Operation within specification | 60 | G | ||
| Output Duty Cycle | D | Using Reference Target 60-0, static air gap, AG within specification | 40 | 60 | % | |
| Maximum Sudden Signal Amplitude Change | BSEQ(n+1) / BSEQ(n) | No missed output edge. Instantaneous symmetric magnetic signal amplitude change, measured as a percentage of peak-to-peak BSIG | 0.6 | |||
| Allowable Differential Signal Amplitude Variation | BSEQ(min) / BSEQ(max) | Overall symmetric magnetic signal amplitude ratio of BSIG | 0.2 | |||
| PACKAGE DIMENSIONS (SN, 3-Pin SIP) | ||||||
| Nominal Capacitance | CSUPPLY | Connected between VCC and GND | 2.2 | nF | ||
| Package Thermal Resistance | RJA | Single layer PCB, with copper limited to solder pads | 150 | C/W | ||
2404071024_ALLEGRO-ATS19200LSNATN-H-A_C3349789.pdf
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