DRV5055Z2QDBZR

DRV5055Z2QDBZR is a Texas Instruments Hall-effect sensor in the DRV5055 family. It is a digital Hall switch with a latched output, designed for non-contact magnetic position sensing.
- How it works: when a magnetic field exceeds a defined on-threshold, the output changes state and remains latched until the field falls below a release-threshold. This provides hysteresis and robust switching in the presence of noisy fields.
- Output and operation: provides a logic-level digital signal suitable for direct interfacing with microcontrollers. It typically consumes very low power and is designed for compact, low-cost applications.
- Features and packaging: automotive-grade (where applicable), small-footprint packaging, and built-in protection features. The Z2QDBZR suffix indicates a specific packaging/grade variant in TI’s naming scheme.
- Applications: ideal for non-contact position sensing (doors, lids, actuators), magnetic encoders, limit switches, and other proximity sensing tasks.
Note: exact electrical specs (supply voltage, current, threshold values, hysteresis, output type) vary by variant. Consult the TI DRV5055 datasheet for precise figures and the DBZR package details for the exact part you’re using.

Here are the typical features of the DRV5055Z2QDBZR (Hall-effect switch):
- Hall-effect unipolar switch with built-in magnetic threshold and hysteresis
- Open-drain output suitable for easy logic interfacing (pull-up to Vcc)
- Supply voltage range: commonly 2.7 V to 5.5 V
- Temperature compensation for stable switching over wide temperature (e.g., -40°C to 125°C)
- Small 3-pin surface-mount package with the DBZR code (compact, rugged)
- Low power consumption suitable for battery-powered and compact designs
- Electrical protection: ESD protection on I/O; robust to usual automotive/industrial environments
- Threshold values specified per variant (accurate numbers in the datasheet for DRV5055Z2)
- Fast response with repeatable switching characteristics
Notes: exact magnetic threshold, leakage, and current specs vary by variant; consult the datasheet for the precise numbers for the DRV5055Z2QDBZR.

8-pin VSSOP (Very-Small-Outline Package).

- Pin count: 3 pins (SOT‑23 package).
- Pin functions (SOT‑23 pin numbering):
- Pin 1: VOUT (analog ratiometric Hall output)
- Pin 2: GND
- Pin 3: VCC (supply)
Device function: DRV5055 is a unipolar, ratiometric linear Hall‑effect sensor that produces an analog voltage proportional to the magnetic flux density (output centered around a bias/half‑supply and shifts with a nearby magnetic field).

Manufacturer: Texas Instruments (TI).
What kind of company: TI is an American multinational semiconductor company that designs and manufactures integrated circuits and other semiconductor devices—especially analog chips, mixed-signal ICs, embedded processors and sensors—used across industrial, automotive, consumer and communications markets.

Applications:
- Non-contact magnetic sensing (Hall effect)
- Position and proximity sensing
- Rotary/linear encoders and motor-position feedback
- Door/limit switches and end-stop sensing
- Automotive sensors and industrial control
- Appliance and consumer electronics sensing

Direct/functional equivalents (ratiometric linear Hall sensors): Allegro A1301 / A1302 / A1324 series; Honeywell SS49E / SS495A family; Melexis MLX90248, MLX90316/MLX90324. Verify sensitivity (mV/G), supply range, output polarity and SOT‑23/package pinout to ensure exact compatibility.