Product Overview
The A19300 is an optimized Hall-effect integrated circuit (IC) designed for precise speed and direction detection in applications requiring high pitch accuracy. This user-friendly, two-wire solution features an integrated capacitor and Hall-based IC within a compact overmolded SIP package, enhanced with a lead-stabilizing bar for robust shipping and assembly. Its SolidSpeed Digital Architecture employs intelligent algorithms to maintain stable operation during dynamic air gap movements, ensuring accurate rotational and speed detection, particularly for ABS applications. Integrated diagnostics provide ASIL B compliance by detecting IC failures impacting output protocol accuracy. The IC includes built-in EEPROM for device traceability throughout sensor module production and offers enhanced EMC performance. The lead (Pb) free, 2-pin SIP package features tin leadframe plating.
Product Attributes
- Brand: Allegro MicroSystems
- Technology: Hall-effect
- Package Type: 2-Pin SIP (UB package)
- Certifications: ASIL B compliant
- Material: Lead (Pb) free, tin leadframe plating
Technical Specifications
| 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 = 11.4 mA, TA = 25C, potential between pin 1 and pin 2 | 28 | V | ||
| 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) | Measured as ratio of high current to low current (isothermal) | 1.9 | |||
| ASIL Safety Current | IRESET | Refer to Figure 10 | 1.5 | 3.5 | 3.9 | mA |
| ASIL Safety Current Time | tRESET | Refer to Figure 10 | 5 | ms | ||
| Output Rise/Fall Time | tr, tf | Voltage measured at terminal 2 in Figure 1, 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 1 | ICC(LOW) | mA | ||
| Power-On Time | tPO | VCC > VCC(min), as connected in Figure 1 | 0.25 | 1 | ms | |
| Pulse Width Off Time | tW(PRE) | Refer to Figure 8 | 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 | tW(REV) | -xNxx and -xWxx variant | 153 | 180 | 207 | 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 | |
| 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 | fREV | -xNxx and -xWxx variant | 0 | 2.4 | kHz | |
| Operating Frequency, Warning Pulses | fWARN | -xxPx variant | 0 | 5 | kHz | |
| Operating Differential Magnetic Input | BDIFF(pk-pk) | Peak-to-peak of differential magnetic input | 20 | G | ||
| Operating Differential Magnetic Range | BDIFF | Refer to Figure 5 | 700 | 700 | G | |
| Air Gap Warning Level | BWARN | Signal amplitude that engages warning pulses (-xxPx variant) | 24 | G | ||
| Operating Magnetic Input Signal Variation | BDIFF(pk-pk) | Bounded amplitude ratio within TWINDOW; no missed output transitions or flat line condition; possible incorrect direction information; see Figure 3 and Figure 4 | 0.4 | |||
| Operating Magnetic Input Signal Window | TWINDOW | Rolling window where BDIFF(pk-pk) cannot exceed bounded ratio; see Figure 3 and Figure 4 | 4 TCYCLE | |||
| Calibration Period | TCAL | Period between power-on and valid speed and correct direction output (f 200 Hz) | 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 | % | ||
| Switch Point Separation | BDIFF(SP-SEP) | Required amount of amplitude separated between channels at each BOP and BRP occurrence and channels must be in phase (refer to Figure 6) | 20 | %pk-pk | ||
| Magnetic Temperature Coefficient (-xxxE Variant) | TC | Based on ferrite ring magnet and neodymium magnet | 0.16 | %/C | ||
| Magnetic Temperature Coefficient (-xxxG variant) | TC | Based on SmCo magnet | 0.04 | %/C | ||
| Package Thermal Resistance | RJA | Single-layer PCB with copper limited to solder pads | 213 | C/W |
2404071024_ALLEGRO-A19300LUBATN-RWPE-A_C3349917.pdf
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