STMicroelectronics LPY410AL

Overview

LPY410AL from STMicroelectronics is a dual-axis MEMS gyroscope measuring angular rate along pitch and yaw axes with ±100 dps full-scale range, 560 Hz bandwidth, and analog outputs (amplified and non-amplified) for both axes. It operates from 2.7 V to 3.6 V, supports -40 °C to +85 °C operation, and integrates self-test, sleep mode, and embedded low-pass filtering - used in motion-controlled pointing devices and GPS navigation systems.

For engineers reviewing the LPY410AL datasheet, LPY410AL pinout, LPY410AL application, or LPY410AL equivalent, key selection considerations include its dual-axis analog output architecture, temperature-stable zero-rate level (±0.03 dps/°C drift), 10 mV/dps sensitivity on amplified outputs, and LGA-28 package compatibility with high-shock industrial environments.

Technical Context

The LPY410AL uses a single micromachined driving mass oscillating continuously; angular rotation induces Coriolis force detected as capacitance change, converted by a CMOS interface IC into analog voltage outputs. Its sensing element leverages ST's mature plastic LGA accelerometer manufacturing process.

Two independent analog output paths per axis - one unamplified (±400 dps, 2.5 mV/dps), one 4× amplified (±100 dps, 10 mV/dps) - are buffered for low impedance. An internal PLL synchronizes drive and sense circuits, requiring external RC components on VCONT and FILTVDD pins for loop stability.

Key Specifications

Pinout & Package

The LPY410AL is housed in a 4 mm × 5 mm × 1 mm plastic land grid array (LGA-28) package, qualified per JEDEC J-STD-020, RoHS-compliant, and ECOPACK® certified.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-axis analog gyroscope applications.

Compared with ADXRS645 and ITG-3200, the LPY410AL uniquely delivers dual-axis analog outputs with integrated sleep mode, self-test, and temperature-stable zero-rate performance in a rugged LGA package - making it optimal for cost-sensitive, low-power motion UI and navigation applications requiring minimal external components.

Availability

LPY410AL is available at Aetrix Electronics and suitable for GPS navigation systems, motion-controlled pointing devices, industrial robotics motion control, and wearable motion tracking requiring stable component supply and long-term lifecycle support.

Supply support for LPY410AL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing silicon solutions for automotive, industrial, and consumer markets since 1987.

The LPY410AL belongs to ST's MEMS motion sensor product line, engineered specifically for high-reliability analog gyroscope applications in navigation, human interface, and industrial motion control where temperature stability and integrated power management are critical.

FAQ

What is the function of the HP pin on the LPY410AL?

The HP (High-Pass Filter Reset) pin is an active-high logic input that resets external high-pass filters connected to the analog outputs. When driven high, it clears DC offset buildup in the filter path-critical during power-up or after large angular transients. It must be pulsed high briefly at startup or after overload events to ensure accurate baseline restoration.

How does the self-test feature verify sensor integrity?

The self-test applies an electrostatic force to the internal seismic mass via the ST pin, inducing a known Coriolis-like displacement. This causes a predictable 250 mV DC-level shift in the analog outputs. Measuring this shift confirms both mechanical mobility of the MEMS structure and correct operation of the signal conditioning circuitry-no external motion or equipment required.

Can both amplified and non-amplified outputs be used simultaneously on the same axis?

No-using both OUTX and 4xOUTX simultaneously is not recommended. The 4× amplifier buffers and drives the output; connecting both creates loading conflicts and potential signal distortion. Select either the non-amplified path (for custom gain/noise optimization) or the 4× path (for direct low-impedance ADC interfacing), but not both concurrently.

What external components are required for stable PLL operation?

Stable PLL operation requires external RC networks on VCONT (Pin 17) and FILTVDD (Pin 18): a 2.2 kΩ resistor and 10 nF capacitor on VCONT, and a 1.7 kΩ resistor and 10 nF capacitor on FILTVDD, as specified in Figure 3 of the datasheet. These set loop bandwidth and phase margin; omitting them causes erratic drive frequency and degraded sensitivity stability.