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TDK enhances scalability of its SmartAutomotive™ performance platforms with newly expanded IMU portfolio

2021-12-07 | Return

> IAM-20680HT high temperature automotive 6-Axis MotionTracking™ device for non-safety automotive applications

> Extends standard IAM-20680 performance up to 105°C
> Two independent interrupt lines and extended FIFO up to 4096-bytes
> Automotive qualification based on AEC-Q100 grade 2 (operating range -40°C to 105°C)
> Pin-to-pin and register compatible with IAM-20680, IAM-20680HP, IAM-20380, IAM-20381

The IAM-20680HT embeds a 3-axis gyroscope and a 3-axis accelerometer in a thin 3 x 3 x 0.75mm (16-pin LGA) package and is automotive qualified based on AEC-Q100 Grade 2. It also features two programmable independent interrupt lines and wake-on-motion feature for low power operation of applications processor. The solution also boasts a FIFO up to 4096-bytes that can lower the traffic on the serial bus interface and reduce power consumption by allowing the system processor to burst read sensor data and then go into a low-power mode.

“The InvenSense IAM-20680HT combines the IAM-20680 level of performance with the IAM-20680HP extended temperature range, offering the market the best trade-off in term of costs and benefits,” said Alberto Marinoni, Director Product Marketing Automotive at InvenSense, a TDK Group company. “Thanks to the new IAM-20680HT, mid-end automotive solutions can benefit of reliable inertial data up to 105°C keeping the right level of performance under all the operating conditions.”

More than ever, emerging automotive non-safety applications require a high level of computational power that generates significant self-heating of the printed circuit board with a consequent thermal impact on all the electronic components. With a maximum operating temperature of 105°C and its negligible power dissipation, the IAM-20680HT is well-suited for such applications.

IAM-20680HT provides best-in-class low noise performance, on-chip 16-bit ADCs, and industry-leading sensitivity tolerance. These fundamental features are important towards the enhancement of positioning systems’ accuracy, enabling advanced telematic features and triggering emergency calls in a timely manner.

The InvenSense IAM-20680HT automotive IMU is available from multiple distributors worldwide and is part of a fully compatible, multi-axis, multi-grade IMU portfolio of SmartAutomotive products reinforcing InvenSense’s undisputed leadership in the 6-axis IMU market for both safety and non-safety automotive applications. For additional information and collateral, please visit invensense.tdk.com/smartautomotive or contact InvenSense Sales at sales.us@invensense.com.

Glossary
> 6-axis: 3-Axis Gyroscope + 3-Axis Accelerometer
> MEMS: Micro-Electro-Mechanical Systems
> DK: Developer Kit
> LGA: Land Grid Array
> FIFO: First in First out

Main applications
IAM-20680HT addresses a wide range of automotive applications, including but not limited to:

> Navigation systems Aids for Dead Reckoning
> Telematics
> Insurance Vehicle Tracking
> Accurate Location for Vehicle to Vehicle and Infrastructure
> Head-up display (HUD) and augmented reality HUD
> Car alarm

Features
> Automotive-qualified based on AEC Q100 Grade 2
> 16-bit digital-output for both Gyroscope and Accelerometer
> Gyroscope: X-, Y-, and Z-axis angular rate sensors with a user-programmable full-scale range of ±250dps, ±500dps, ±1000dps, ±2000dps
> Accelerometer: X-, Y-, and Z-axis accelerometer with a programmable full-scale range of ±2g, ±4g, ±8g, ±16g
> User-programmable digital filters for gyroscope, accelerometer, and temperature sensor
> Embedded Self-test
> Two embedded and configurable interrupt lines
> Reliability testing performed according to AEC–Q100: PPAP and qualification data available upon request
> Final test at -40 °C, 25 °C, and 105 °C

Key Data

Product	Package Size *(mm)*	Gyro Full Scale Range *(°/sec)*	Gyro Sensitivity *(LSB/°/sec)*	Gyro Rate Noise *(mdps/rtHz)*	Accel Full Scale Range *(g)*	Accel Sensitivity *(LSB/g)*	Digital Output	Logic Supply Voltage *(V)*
IAM-20680HT	3 × 3 × 0.75	±250 ±500 ±1000 ±2000	131 65.5 32.8 16.4	0.005	±2 ±4 ±8 ±16	16384 8192 4096 2048	I²C or SPI	VDD
DK-20680HT	SmartAutomotive™ Development Kit for IAM-20680HT Automotive Sensor

Source: http://www.global.tdk.com/