Product Overview
The A19301 is an optimized, two-wire Hall-effect integrated circuit (IC) designed for applications requiring accurate speed and direction determination of a sensed target. It features a compact, overmolded package with an integrated capacitor and Hall-based IC, plus a lead-stabilizing bar for robust handling and assembly. The SolidSpeed Digital Architecture ensures stable operation during dynamic air gap movements, providing highly accurate speed and rotational direction detection, making it ideal for ABS applications. Developed in accordance with ISO 26262, it serves as a hardware safety element with ASIL B(D) capability for automotive safety-related systems. Integrated EEPROM memory allows for device traceability throughout its lifecycle. The A19301 is available in a 2-pin SIP UB package, offering enhanced EMC performance.
Product Attributes
- Brand: Allegro MicroSystems
- Certifications: ISO 26262 ASIL B(D)
- Material: Lead (Pb) free, tin leadframe plating
- Origin: U.S.A.
Technical Specifications
| Part Number | Package | Forward Pulse Width | Protocol Options | Magnetic Temperature Compensation | Fault Detection Mode | Packing |
|---|---|---|---|---|---|---|
| A19301LUBATN-FWPE | 2-Pin SIP (UB) | 45 s (N) | Warning, extended air gap, and standstill pulses enabled (P) | Ferrite ring magnet or neodymium magnet (E) | ASIL protocol enabled (-A) | Tape and reel, 4000 pieces per reel |
| A19301LUBATN-RWPE | 2-Pin SIP (UB) | 45 s (N) | Warning, extended air gap, and standstill pulses enabled (P) | Ferrite ring magnet or neodymium magnet (E) | ASIL protocol enabled (-A) | Tape and reel, 4000 pieces per reel |
| A19301LUBATN-FWPE-A | 2-Pin SIP (UB) | 45 s (N) | Warning, extended air gap, and standstill pulses enabled (P) | Ferrite ring magnet or neodymium magnet (E) | ASIL protocol disabled | Tape and reel, 4000 pieces per reel |
| A19301LUBATN-RWPE-A | 2-Pin SIP (UB) | 45 s (N) | Warning, extended air gap, and standstill pulses enabled (P) | Ferrite ring magnet or neodymium magnet (E) | ASIL protocol disabled | Tape and reel, 4000 pieces per reel |
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage | VCC | Potential between pin 1 and pin 2 | 4 | 24 | V | |
| Undervoltage Lockout | VCC(UV) | VCC 0 V 5 V or 5 V 0 V | 3.6 | 3.95 | V | |
| Reverse Supply Current | IRCC | VCC = VRCC(max) | 10 | mA | ||
| Supply Zener Clamp Voltage | VZsupply | ICC = 19 mA | 28 | V | ||
| Supply Current (Low-current state) | ICC(LOW) | 5.9 | 7 | 8.4 | mA | |
| Supply Current (High-current state) | ICC(HIGH) | 12 | 14 | 16 | mA | |
| Supply Current Ratio | ICC(HIGH) / ICC(LOW) | Measured as ratio of high current to low current (isothermal) | 1.9 | |||
| ASIL Safety Current | IRESET | Refer to Figure 14 | 1.5 | 3.5 | 3.9 | mA |
| Output Rise/Fall Time | tr, tf | RL = 100 , CL = 10 pF, measured between 10% and 90% of ICC(LOW) and ICC(HIGH) | 0 | 1.5 | s | |
| Power-On State | POS | VCC > VCC(min), as connected in Figure 2 | ICC(LOW) | mA | ||
| Power-On Time | tPO | VCC > VCC(min), as connected in Figure 2 | 0.25 | 1 | ms | |
| Pulse Width Off Time | tW(PRE) | Refer to Figure 9 | 38 | 45 | 52 | s |
| Forward Pulse Width (-xNxx variant) | tW(FWD) | 38 | 45 | 52 | s | |
| Forward Pulse Width (-xWxx variant) | tW(FWD) | 76 | 90 | 104 | s | |
| Reverse Pulse Width (-xNxx and -xWxx variant) | tW(REV) | 153 | 180 | 207 | s | |
| EA Forward Pulse Width (-xxPx variant) | tW(EA FWD) | 306 | 360 | 414 | s | |
| EA Reverse Pulse Width (-xxPx variant) | tW(EA REV) | 612 | 720 | 828 | s | |
| Warning Pulse Width (-xxPx variant) | tW(WARN) | 38 | 45 | 52 | s | |
| Standstill Pulse Width (-xxPx variant) | tW(STILL) | 1232 | 1440 | 1656 | s | |
| Standstill Period (-xxPx variant) | tSTOP | 590 | 737 | 848 | ms | |
| Pulse Width, ASIL Warning | tRESET | Refer to Figure 14 | 5 | ms | ||
| Operating Frequency, Forward Pulses (-xNxx variant) | fFWD | 0 | 5 | kHz | ||
| Operating Frequency, Forward Pulses (-xWxx variant) | fFWD | 0 | 3.9 | kHz | ||
| Operating Frequency, Reverse Pulses (-xNxx and -xWxx variant) | fREV | 0 | 2.4 | kHz | ||
| Operating Frequency, Warning Pulses (-xxPx variant) | fWARN | 0 | 5 | kHz | ||
| Operating Frequency, EA Pulses (-xxPx variant) | fEA | Signal frequency cut off that extended air gap pulses are output | 117 | Hz | ||
| Operating Differential Magnetic Input | BDIFF(pk-pk) | Peak-to-peak of differential magnetic input | 20 | G | ||
| Operating Differential Magnetic Range | BDIFF | Refer to Figure 6 | 700 | 700 | G | |
| Air Gap Warning Level (-xxPx variant) | BWARN | Signal amplitude that engages warning pulses | 24 | G | ||
| Extended Air Gap Level (-xxPx variant) | BEA | Signal amplitude that engages extended air gap pulses when f < fEA | 84 | G | ||
| Operating Magnetic Input Signal Variation | BDIFF(pk-pk) | Bounded amplitude ratio within TWINDOW; see Figure 4 and Figure 5 | 0.4 | |||
| Operating Magnetic Input Signal Window | TWINDOW | Rolling window where BDIFF(pk-pk) cannot exceed bounded ratio; see Figure 4 and Figure 5 | 4 | TCYCLE | ||
| Calibration Period | TCAL | Period between power-on and valid speed and correct direction output | 1.5 | TCYCLE | ||
| Operate Point | BOP | % of peak-to-peak IC-processed signal | 60 | % | ||
| Release Point | BRP | % of peak-to-peak IC-processed signal | 40 | % | ||
| Switchpoint Separation | BDIFF(SP-SEP) | Required amount of amplitude separated between channels at each BOP and BRP occurrence | 20 | %BDIFF(pk-pk) | ||
| Magnetic Temperature Coefficient (Ferrite/Neodymium) | TC | Based on ferrite ring magnet and neodymium magnet (-xxxE variant) | 0.16 | %/C | ||
| Magnetic Temperature Coefficient (Samarium-Cobalt) | TC | Based on samarium-cobalt magnet (-xxxG variant) | 0.04 | %/C | ||
| Package Thermal Resistance | RJA | Single-layer PCB with copper limited to solder pads | 213 | C/W |
2401220948_ALLEGRO-A19301LUBATN-RWPE_C19761435.pdf
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