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Specifications
Mfr. Part #:
A19301LUBATN-FWPE
Package:
ULTRAMiNiSIP-2
Key Attributes
Model Number:
A19301LUBATN-FWPE
Product Description
Product Overview
The A19301 is an optimized Hall-effect integrated circuit (IC) designed for precise speed and direction determination in applications requiring high pitch accuracy. Its user-friendly two-wire solution, integrated capacitor, and overmolded design with a lead-stabilizing bar offer robustness and ease of 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 is a hardware safety element out of context with ASIL B(D) capability for automotive safety-related systems. Integrated EEPROM memory allows for device traceability throughout its lifecycle. The IC is available in a 2-pin SIP package (UB) for enhanced EMC performance.
Product Attributes
- Brand: Allegro MicroSystems
- Origin: U.S.A.
- Certifications: ISO 26262 ASIL B(D)
- Package Type: 2-Pin SIP (UB)
- Lead Plating: Tin
- Material: Ceramic capacitor (integrated), Lead (Pb) free package
Technical Specifications
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
| ELECTRICAL SUPPLY CHARACTERISTICS | ||||||
| Supply Voltage | VCC | Potential between pin 1 and pin 2; does not include voltage across RL | 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 | 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 14 | 1.5 | 3.5 | 3.9 | mA |
| Output Rise/Fall Time | tr, tf | Voltage measured at pin 2 (see Typical Application Circuit); RL = 100 , CL = 10 pF, measured between 10% and 90% of ICC(LOW) and ICC(HIGH) | 0 | 1.5 | s | |
| POWER-ON CHARACTERISTICS | ||||||
| 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 | |
| OUTPUT PULSE CHARACTERISTICS, PULSE PROTOCOL | ||||||
| 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 CHARACTERISTICS AND PERFORMANCE | ||||||
| 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 | fEA | Signal frequency cut off that extended air gap pulses are output (-xxPx variant) | 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 | BWARN | Signal amplitude that engages warning pulses (-xxPx variant) | 24 | G | ||
| Extended Air Gap Level | BEA | Signal amplitude that engages extended air gap pulses when f < fEA (-xxPx variant) | 84 | G | ||
| Operating Magnetic Input Signal Variation | BDIFF(pk-pk) | Bounded amplitude ratio within TWINDOW [9]; no missed output transitions or flat line condition; possible incorrect direction information; 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 (once BDIFF(pk-pk)(min) has been exceeded) | 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 and channels must be in phase; see Figure 7 | 20 | %BDIFF(pk-pk) | ||
| THERMAL CHARACTERISTICS | ||||||
| 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 samarium-cobalt magnet | 0.04 | %/C | ||
| Package Thermal Resistance | RJA | Single-layer PCB with copper limited to solder pads | 213 | C/W | ||
2401220948_ALLEGRO-A19301LUBATN-FWPE_C19761434.pdf
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