Integrated Tire Sensors MLX91804 www.melexis.com/mlx91804 Smallest TPMS Sensor Solu on One of the most fully featured, ultra-low power re pressure measurement system (TPMS) solu ons available today, the new MLX91804 integrates all the electronic sub-systems required to develop a high performance TPMS with a minimum of external components. Pressure and accelera on sensors, an LF transceiver and RF transmi.er circuits combine with a low power MLX16 RISC microcontroller in a single ny form factor. With a height of less than 2.5 mm the ultra-compact, 14 pin we.able flanks DFN package has been specially engineered to limit real estate demanded to a minimal 20 mm2 (that’s 60% smaller than current alterna ves). This is helping leading TPMS and smart re system suppliers meet or exceed the most stringent size, weight and cost constraints in their next genera on designs. The MLX91804 can be powered from typical small Lithium bu.on cells such as CR2032/CR1632 types. Even kine c energy harvesters can be used by the MLX91804 to ensure a long and accurate service life. Customer Benefits ■ ■ ■ ■ ■ Industry’s lowest current draw Extended opera on from a single CR1632 cell Smallest and lightest autonomous TPMS solu on Designed to support direct re a.ach strategies (TMS) Broad feature set including mul -mode sensing (pressure & accelera on) Enables advanced, high value solu on development Highly ruggedized Long service life Insensi ve to re moun ng soap and moisture residues Specialized design-in support includes: Powerful MLX16 TPMS code libraries available - speeds applica on firmware development & design-in Field based applica on experts Applica ons ☑ Tire pressure monitoring systems for passenger and commercial vehicles ☑ Supports re mounted systems (TMS) and enhanced car telema cs ☑ Ideal for use in low power, micro-miniature pressure & accelera on sensing environments Version 1.0 (Sept. 2016) Integrated Tire Sensors MLX91804 www.melexis.com/mlx91804 Block Diagram Comprehensive Feature Set ■ ■ ■ ■ ■ ■ Integrated mul -func on sensing: Pressure, Accelera on, Temperature & Voltage 100 up to 1400 kPa pressure sensing range ± 4 kPa accuracy & resolu on down to 0.2 kPa Integrated mul -axis accelerometer ± 650 g range measurement Ultra-low power opera on from 3.6 down to 1.8 V Tiny 4 x 5 mm, we.able flanks DFN-14 package Power efficient 315/433 MHz RF transmission 150 kbps data rate ■ ■ ■ ■ ■ ■ ■ Integrated 16-bit RISC MCU including: 16 kB FLASH, 512 B SRAM, 128 B NVRAM 47 B register memory (On during sleep) 3 GPIOs User configurable ADC - 12 to 16-bit resolu on Ultra-low power LFO and wake-up scheduler Built-in self-test features with fault detec on - 40 to 125 °C opera ng temperature range RoHS compliant green packaging Automo ve qualified with PPAP (pending) Disclaimer: Devices sold by Melexis are covered by the warranty and patent indemnifica on provisions appearing in its Term of Sale. Melexis makes no warranty, express, statutory, implied, or by descrip on regarding the informa on set forth herein or regarding the freedom of the described devices from patent infringement. Melexis reserves the right to change specifica ons and prices at any me and without no ce. Therefore, prior to designing this product into a system, it is necessary to check with Melexis for current informa on. This product is intended for use in normal commercial applica ons. Applica ons requiring extended temperature range, unusual environmental requirements, or high reliability applica ons, such as military, medical life-support or life-sustaining equipment are specifically not recommended without addi onal processing by Melexis for each applica on. The informa on furnished by Melexis is believed to be correct and accurate. However, Melexis shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interrupt of business or indirect, special incidental or consequen al damages, of any kind, in connec on with or arising out of the furnishing, performance or use of the technical data herein. No obliga on or liability to recipient or any third party shall arise or flow out of Melexis’ rendering of technical or other services. © 2016 Melexis NV. All rights reserved.
