BU52004GUL and BU52014HFV are bipolar Hall ICs with dual output polarity detection function.
This technical note describes ROHM's BU52004GUL and BU52014HFV Hall ICs, which provide omnipolar magnetic detection with dual outputs for S‑pole and N‑pole signals. The document includes features, electrical characteristics, pin definitions, and application guidance for mobile phones, notebooks, and cameras.
Detailed sections cover magnetic and electrical specifications, measurement circuits, block diagrams, operation modes, magnet selection, and ordering information. Safety notices and copyright statements conclude the handbook.
| Supply voltage (BU52004GUL) | 2.4 V – 3.3 V |
|---|---|
| Supply voltage (BU52014HFV) | 1.65 V – 3.3 V |
| Output current (BU52004GUL) | ≤ 1 mA |
| Output current (BU52014HFV) | ≤ 0.5 mA |
| Operating temperature range | -40 °C to +85 °C |
| Power dissipation (BU52004GUL) | 420 µW |
| Power dissipation (BU52014HFV) | 536 µW |
| Startup time | 48 µs |
The BU52004GUL operates with a supply voltage from 2.4 V to 3.3 V.
It has two output pins: OUT1 provides the S‑pole signal and OUT2 provides the N‑pole signal.
The typical startup time is 48 µs.
The standby current is specified as 3.8 µA.