IPS2200BI1W

IPS2200BI1W is a magnet-free, inductive position sensor IC that can be used for high-speed absolute position sensing in industrial, medical, and consumer applications. It uses the physical principle of eddy currents to detect the position of a simple metallic target that is moving above a set of coils, consisting of one transmitter coil and two receiver coils. The three coils are typically printed as copper traces on a printed circuit board (PCB). This is arranged such that the transmitter coil induces a secondary voltage in the two receiver coils, which depends on the position of the metallic target above the coils. A signal representative of the target’s position over the coils is obtained by demodulating and processing the secondary voltages from the receiver coils. Typical application includes rotor position detection for brushless DC motors; adaptable to any pole pair count, replacement of brushless resolvers, magnet-free rotor speed sensors.

• Position sensing based on an inductive principle, cost effective; no magnet required
• Immune to magnetic stray fields; no shielding required
• Suitable for harsh environments and extreme temperatures
• Differential and single-ended sine and cosine outputs
• Digital incremental outputs: 4 counts per period
• Nonvolatile user-configurable memory, programmable via I²C or SPI interface
• Single IC supports on-axis and off-axis rotation, linear motion, and arc motion sensing
• Adaptable to any full-scale angle range, rotation sensing up to 360º angle range
• Fast diagnostic alarm via interrupt pin, ±18V overvoltage/reverse-polarity protection on o/p pins
• 16-TSSOP package, temperature range from -40° to +125°C