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STMicroelectronics LYPR540AH
- Part No.:
- LYPR540AH
- Manufacturer:
- STMicroelectronics
- Category:
- Gyroscopes
- Package:
- 28-TFLGA
- Datasheet:
-
LYPR540AH.pdf
- Description:
- GYROSCOPE MEMS TRIPLE AXIS 28LGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,750
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Product details
Overview
LYPR540AH from STMicroelectronics is a 3-axis analog-output MEMS gyroscope for yaw, pitch, and roll sensing, operating from 2.7 V to 3.6 V with ±400 dps (amplified) and ±1600 dps (not amplified) full-scale ranges, 140 Hz bandwidth, and -40°C to +85°C operation-used in motion-controlled gaming peripherals and personal navigation devices.
For engineers reviewing the LYPR540AH datasheet, LYPR540AH pinout, LYPR540AH application, or LYPR540AH equivalent, this page delivers verified electrical specs, LGA-28L package details, self-test functionality, zero-rate level drift (0.08 dps/°C), and dual-output channel architecture critical for precision angular rate measurement in embedded motion systems.
Technical Context
The LYPR540AH integrates three independent micromachined sensing elements with dedicated CMOS interface circuits trimmed per-axis to match mechanical characteristics. Each axis provides two simultaneous analog outputs: one amplified (±400 dps, 3.2 mV/dps sensitivity) and one not amplified (±1600 dps, 0.8 mV/dps).
It employs a PLL-based drive/sense synchronization architecture with external RC filtering on VCONT_1G, VCONT_2G, and FILTVDD_2G pins to stabilize phase-locking. Self-test is implemented via electrostatic actuation on the ST pin, inducing a measurable DC-level shift at all six output pins without mechanical rotation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.7 V to 3.6 V - supports single Li-ion or regulated 3.3 V rails without external LDO |
| Full-scale range | ±400 dps (amplified) and ±1600 dps (not amplified) - enables high-resolution and wide-dynamic-range mode selection per axis |
| Sensitivity | 3.2 mV/dps (amplified), 0.8 mV/dps (not amplified) - defines minimum detectable rate resolution and ADC scaling requirements |
| Bandwidth | 140 Hz (-3 dB) - suitable for human-motion tracking and real-time pointing control with minimal phase lag |
| Zero-rate drift | 0.08 dps/°C - determines calibration interval needed for temperature-stable null-point maintenance |
| Operating temp | -40°C to +85°C - validated for industrial and consumer-grade portable equipment environments |
| Shock survivability | 10,000 g / 0.1 ms - ensures robustness during drop testing and mechanical handling in manufacturing |
Pinout & Package
The LYPR540AH is housed in a 4.4 mm × 7.5 mm × 1.1 mm plastic Land Grid Array (LGA-28L) package with exposed thermal pad and no leads-designed for high-density PCB layouts and automated reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 28) | Power supply input | Primary analog/digital core supply; requires 10 µF + 100 nF decoupling per layout guidelines |
| GND (Pin 11) | Ground reference | Common return for analog outputs, PLL filters, and self-test logic |
| ST (Pin 9) | Self-test control | Logic-high (≥0.8×VDD) activates electrostatic test force; logic-low enables normal operation |
| 4xX, 4xY, 4xZ (Pins 17,16,15) | Amplified angular rate outputs | Provide ±400 dps full-scale signals with 3.2 mV/dps gain-directly interface to 12-bit+ SAR ADCs |
| X, Y, Z (Pins 22,21,20) | Not-amplified angular rate outputs | Deliver ±1600 dps full-scale at 0.8 mV/dps-suitable for high-rate detection with external gain stages |
| VCONT_1G, VCONT_2G, FILTVDD_2G (Pins 12,13,14) | PLL filter nodes | Require external RC networks to configure second-order low-pass response for stable phase-locking |
Key Features
| Feature | Design Value |
|---|---|
| Dual-output per axis | Simultaneous amplified (±400 dps) and not-amplified (±1600 dps) analog outputs enable flexible signal chain design without external multiplexing |
| Embedded self-test | Electrostatic actuation via ST pin verifies mechanical integrity and analog path functionality without external stimulus equipment |
| Factory-trimmed CMOS interface | Per-axis trimming compensates for MEMS process variation, reducing system-level calibration effort and improving cross-axis matching |
| High shock survivability | Rated to 10,000 g for 0.1 ms-ensures reliability in handheld devices subject to impact and vibration |
| ECOPACK® RoHS/Green compliance | LGA-28L package meets JEDEC J-STD-020C reflow standards and global environmental regulations without lead or halogen restrictions |
Applications
| Gaming Motion Controllers | Fitness Tracking Wearables |
|---|---|
Use Scenario: Real-time orientation tracking in wireless game controllers for gesture-based interaction and immersive VR navigation. IC Role / Device Role / Timing Role: Primary angular rate sensor delivering synchronized X/Y/Z analog outputs to MCU ADC for quaternion computation. Use Value: Dual full-scale modes allow dynamic range switching between fine aiming (±400 dps) and rapid swing detection (±1600 dps) within same firmware. | Use Scenario: Step-counting, posture analysis, and activity classification in wrist-worn fitness bands with low-power intermittent sampling. IC Role / Device Role / Timing Role: Low-drift gyroscope augmenting accelerometer data to resolve ambiguous motion states (e.g., walking vs. cycling). Use Value: 0.08 dps/°C zero-rate drift minimizes recalibration frequency, extending battery life between user-initiated calibrations. |
| Industrial Robotic End-Effectors | Personal Navigation Devices (PND) |
Use Scenario: Joint angle feedback and stabilization in collaborative robot arms performing precision pick-and-place tasks near human operators. IC Role / Device Role / Timing Role: High-bandwidth (140 Hz) angular rate monitor feeding closed-loop PID controllers for real-time torque compensation. Use Value: 140 Hz bandwidth supports sub-10 ms control loop latency, enabling responsive motion correction during fast manipulator movements. | Use Scenario: Dead-reckoning augmentation in GPS-denied indoor environments such as shopping malls or underground parking structures. IC Role / Device Role / Timing Role: Tightly coupled inertial sensor providing yaw/pitch/roll updates to Kalman filter when satellite signals are obstructed. Use Value: Simultaneous amplified and not-amplified outputs allow adaptive fusion-low-noise ±400 dps data for heading hold, ±1600 dps for rapid turn detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-axis analog gyroscope applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADXRS649 | Single-axis, digital SPI output; higher noise floor (0.015°/√Hz); ±2000 dps range | Requires external multiplexing and digital interface design; lacks self-test and dual-output flexibility | Select when system already uses SPI infrastructure and only one axis is needed per board location |
| ITG-3200 | I²C digital output; integrated 16-bit ADC; ±2000 dps range; no analog outputs | Eliminates external ADC but removes analog signal chain control; no simultaneous dual-range capability | Prefer for cost-sensitive consumer designs where digital integration reduces BOM count and layout area |
Compared with ADXRS649 and ITG-3200, the LYPR540AH uniquely delivers true 3-axis analog simultaneity with selectable full-scale ranges per axis-enabling hybrid signal processing architectures that balance resolution, bandwidth, and power across diverse motion-sensing use cases.
Availability
LYPR540AH is available at Aetrix Electronics and suitable for motion-controlled gaming peripherals, industrial robotic end-effectors, and personal navigation devices requiring stable component supply across multi-year production cycles.
Supply support for LYPR540AH 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 microcontrollers, sensors, power ICs, and automotive electronics for industrial, consumer, and automotive markets.
The LYPR540AH belongs to ST's high-performance MEMS motion sensor family, engineered specifically for applications demanding precise, low-drift angular rate measurement with factory-trimmed analog interfaces and robust mechanical packaging.
FAQ
What is the purpose of the ST pin on the LYPR540AH?
The ST pin controls the embedded self-test function: applying logic high (≥0.8×VDD) activates electrostatic actuation of the sensing mass, producing a predictable DC-level shift at all six analog outputs. This verifies mechanical integrity and analog signal chain functionality without external motion or test equipment-critical for field diagnostics and production line validation.
How do the amplified and not-amplified outputs differ in practical use?
The amplified outputs (4xX/Y/Z) deliver ±400 dps full-scale with 3.2 mV/dps sensitivity-ideal for high-resolution applications like VR controller aiming. The not-amplified outputs (X/Y/Z) provide ±1600 dps at 0.8 mV/dps-suited for detecting rapid rotations such as sports motion capture. Both are available simultaneously, enabling adaptive signal routing without hardware reconfiguration.
Why does the LYPR540AH require external capacitors on VCONT_1G, VCONT_2G, and FILTVDD_2G?
These pins connect to the internal PLL circuit used for drive/sense synchronization. External RC networks form a second-order low-pass filter that stabilizes PLL lock time and suppresses jitter-induced noise in the analog outputs. ST specifies exact capacitor and resistor values in the application hints section to ensure phase margin and bandwidth compliance per the 140 Hz system specification.
Is the LYPR540AH pin-compatible with other ST gyroscopes like the LY550ALH?
No-the LYPR540AH uses a 28-pin LGA-28L package with unique pin assignments including dedicated PLL filter connections and dual-output channels per axis. The LY550ALH is a 16-pin LGA device with different pinout, single-output architecture, and digital I²C interface. Board-level replacement requires complete schematic and layout redesign due to incompatible footprint and signal mapping.
LYPR540AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 28-TFLGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Analog
- Axis:
- X (Pitch), Y (Roll), Z (Yaw)
- Range °/s:
- ±400
- Sensitivity (LSB/(°/s)):
- -
- Sensitivity (mV/°/s):
- 3.2
- Bandwidth:
- 140Hz
- Output Type:
- Analog Voltage
- Voltage - Supply:
- 2.7V ~ 3.6V
- Current - Supply:
- 10 mA
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
LYPR540AH FAQ
1.How can I place an order for LYPR540AH through Aetrix?
Please submit a Request for Quotation (RFQ) for LYPR540AH on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LYPR540AH reliable?
The price and inventory of LYPR540AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LYPR540AH is usually 5 days.
3.What payment methods are accepted for LYPR540AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LYPR540AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LYPR540AH?
LYPR540AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LYPR540AH order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LYPR540AH?
For technical support, including LYPR540AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LYPR540AH requirements.
6.How does Aetrix verify that LYPR540AH is sourced from the original manufacturer or authorized distributors?
All LYPR540AH products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LYPR540AH meets industry standards.
7.What is the process for return or replacement of LYPR540AH?
All LYPR540AH units undergo pre-shipment inspection (PSI). If there is an issue with LYPR540AH, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LYPR540AH part is unused and in its original packaging.
Return procedure for LYPR540AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LYPR540AH Tags
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