RENESAS IPS2550STKIT

IPS2550 is a magnet-free, inductive position sensor IC designed for high-speed position sensing in automotive, industrial, medical, and consumer applications. IPS2550 uses the physical principle of eddy currents to detect the position of a simple metal target moving over a coil set consisting of one transmit coil and two receive coils. The three coils are typically printed as copper traces on a PCB. They are arranged so that the transmit coil induces secondary voltages in the two receive coils, depending on the position of the metal target above the coils. By demodulating and processing the secondary voltages from the receive coils, a signal representing the position of the target above the coils is obtained. The target can be any type of metal, such as aluminum, steel, or a PCB with a printed copper layer. IPS2550 provides two independent output interfaces: a high-speed analog interface that delivers position information as demodulated analog sine or cosine raw data, and an I2C digital interface for diagnostics and programming. IPS2550 operates at speeds up to 600,000 RPM, suitable for coil designs using 1 cycle per revolution. An ultra-low propagation delay of 4 microseconds enables high dynamic control of fast-rotating motors. IPS2550 is developed in accordance with ISO 26262 for use in safety-related systems up to ASIL C. It can also be used for ASIL D system-level requirements based on ASIL decomposition rules or appropriate risk analysis performed by the system integrator. IPS2550 is housed in a 16-pin exposed-pad TSSOP package, rated for automotive use over an ambient temperature range of -40°C to +160°C.

• Inductive-principle-based position sensing
• Cost-effective; no magnets required
• Immune to stray magnetic fields; no shielding required
• Suitable for harsh environments and extreme temperatures
• Differential and single-ended sine and cosine outputs
• Automatic gain control with programmable limits
• Non-volatile user-configurable memory, programmable via I2C interface
• Programmable via analog or digital interface
• Single IC supports coaxial and off-axis rotation, linear motion, and arc motion sensing
• Adaptable to any full-scale angle range through coil design
• High accuracy: ≤0.1% full scale (with ideal coil)
• Rotational sensing up to 360° angle range
• Overvoltage and reverse polarity protection: ±18V on supply and output pins
• Facilitates redundancy design requirements
• Suitable for safety-related systems compliant with ISO26262, up to ASIL-C with single IC, up to ASIL-D with dual IC
• Fast diagnostic alarm via interrupt pin
• Wide operating temperature: -40°C to +160°C
• Programmable supply voltage: 3.3V±0.3V or 5.0V±0.5V
• Compact 16-TSSOP exposed pad package (4.4mm×5.0mm)

• Rotor position detection for BLDC motors; compatible with any number of pole pairs
• Resolver replacement