The APX9132 integrated circuit is an ultra-sensitive, pole independent Hall-effect switch with a latched digital output. It operates at voltages ranging from 2.5V to 3.5V and features a unique clocking scheme that reduces average power requirements. The output turns on when either a north or south pole of sufficient flux is present, and turns off in the absence of a magnetic field. The polarity independence and low power requirement make it a superior alternative to reed switches for signal conditioning. It is designed using advanced CMOS processing to meet the low-voltage and low-power requirements, and the SOT-23 package is optimized for most applications.
The APX9132 is an ultra‑sensitive, pole‑independent Hall‑effect micro‑switch IC with a latched digital output, designed for low‑power battery applications. It operates from 2.5 V to 3.5 V and includes a chopper‑stabilized amplifier for noise reduction.
Key specifications include a supply current of 1.2‑2 mA in awake mode, 2‑8 µA in sleep mode, a 180 µs wake‑up time, and a 60 ms sleep period. The device can source or sink up to 1 mA, works over –40 °C to 85 °C, and is offered in SOT‑23 and SOT‑23 Thin packages.
| Supply Current (Awake) | 1.2 mA – 2 mA |
|---|---|
| Supply Current (Sleep) | 2 µA – 8 µA |
| Maximum Junction Temperature | 150 °C |
| Storage Temperature Range | -65 °C to +150 °C |
| Output Current Capability | ±1 mA |
| Sleep Period | 60 ms |
| Chopping Frequency | 11 kHz |
In awake mode the supply current is between 1.2 mA and 2 mA.
The IC is offered in SOT‑23 and SOT‑23 Thin packages.