STMicroelectronics LPR530AL

Overview

LPR530AL from STMicroelectronics is a dual-axis MEMS gyroscope measuring angular rate along pitch and roll axes with ±300°/s full-scale range, 140 Hz bandwidth, and analog voltage outputs (1× and 4× amplified). It operates from 2.7 V to 3.6 V, supports -40 °C to +85 °C, and integrates self-test, power-down, and embedded low-pass filtering-used in motion-controlled game controllers and GPS navigation systems.

For engineers reviewing the LPR530AL datasheet, LPR530AL pinout, LPR530AL application, or LPR530AL equivalent, key selection criteria include dual-axis analog output scaling (0.83 mV/°/s and 3.33 mV/°/s), zero-rate level stability (1.23 V ±0.05 °/s/°C), integrated PLL synchronization, and LGA-16 package compatibility with PCB-level high-pass filter reset capability.

Technical Context

The LPR530AL implements a single micromachined structure combining a resonating driving mass and Coriolis-sensing element, with CMOS interface IC providing analog voltage outputs proportional to angular rate. Its dual-output architecture delivers both unamplified (OUTX/OUTY) and 4× amplified (4xOUTX/4xOUTY) signals, each with independent low-pass filtering.

Internal PLL synchronizes actuation and sensing phases; external RC networks on FILTVDD and VCONT pins configure the PLL loop filter. The HP pin enables active reset of optional external high-pass filters, improving transient response during overload or power-up sequences.

Key Specifications

Pinout & Package

LPR530AL is housed in a 5 mm × 5 mm × 1.5 mm plastic land grid array (LGA-16) package with bottom-side solder pads and no exposed leads-designed for compact, high-density PCB layouts and automated reflow assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADXRS645 and LPY530AL, the LPR530AL uniquely delivers dual-axis analog outputs in a single LGA-16 package with matched sensitivity, zero-rate stability, and integrated self-test-making it optimal for cost-sensitive, space-constrained motion UI and navigation systems requiring simultaneous pitch and roll sensing.

Availability

LPR530AL is available at Aetrix Electronics and suitable for motion-controlled game controllers, GPS-aided inertial navigation units, and industrial robotic arm feedback systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LPR530AL 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, designing and manufacturing microcontrollers, sensors, power ICs, and analog components for industrial, automotive, and consumer markets.

The LPR530AL belongs to ST's MEMS motion sensor product line, engineered specifically for high-stability, low-power angular rate measurement in human-interface and navigation applications where analog output simplicity and thermal robustness are critical.

FAQ

What is the purpose of the HP pin on the LPR530AL?

The HP (High Pass Filter Reset) pin allows active reset of external high-pass filter capacitors by applying a logic-high pulse. This clears accumulated DC offset after power-up or mechanical overload, ensuring accurate zero-rate baseline recovery within milliseconds. It is recommended to assert HP at startup and after large angular transients.

How does the self-test function verify sensor integrity?

When ST pin is driven high, an electrostatic test force displaces the MEMS driving mass, generating a known Coriolis-like response. This induces a predictable DC voltage shift (e.g., ~1.0 V change at 3 V supply) on both 4xOUTX and 4xOUTY outputs. Measuring this shift confirms mechanical mobility and signal chain gain accuracy without external rotation equipment.

Can the LPR530AL operate without external passive components?

No-external RC networks on FILTVDD and VCONT pins are mandatory for PLL operation, and decoupling capacitors (100 nF + 10 µF) on Vdd are required for stable power delivery. For amplified outputs, 4xINX/4xINY must be shorted to GND or Vref if external high-pass filtering is omitted; otherwise, output distortion occurs.

Why does the LPR530AL provide both amplified and unamplified outputs?

Dual output scaling supports flexible system design: unamplified outputs (0.83 mV/°/s) preserve full ±1200°/s range for high-dynamic applications like robotics, while 4× amplified outputs (3.33 mV/°/s) improve ADC resolution for low-rate precision tasks such as UI pointing or slow-motion stabilization-without requiring external op-amps or gain switching.