Tire Pressure Monitoring System (TPMS)
A tire pressure monitoring system (TPMS) is an electronic system for monitoring the air pressure inside the tires of an automobile. It consists of multiple radio transmitters with a sensor module installed within tire cavities and a chassis-mounted radio receiver. The use of a TPMS was mandated in the U.S. in 2007, and a TPMS will be mandatory on all new automobiles to be sold in the EU after November 2012. TPMS legislation is also being reviewed in Japan and China. Therefore, the TPMS market is expected to expand in the near future.
Lately, the TPMS receiver functions are being integrated into a remote keyless entry (RKE) receiver, which is more prevalent in automobiles. As a result, a TPMS receiver must be installed within the limited confines of a vehicle chassis where radio signals can be stably received from any direction, irrespective of vehicle models and body sizes. Today's automobiles have many electronic noise sources due to the increased use of electronic control systems such as those for electric vehicles. Thus, RF ICs with excellent interference performance will be beneficial.
TPMS System Block Diagram
Recommended Products
| Part Number | Intended Use | Applications | TX/ RX | Frequency | FSK | ASK | Package | Status | |
|---|---|---|---|---|---|---|---|---|---|
| RF | IF(BW) | ||||||||
| TA31273FNG(*) | Remote controls | Extremely low-power radio | RX | 315 M/ 434 M |
10.7 MHz | Y | SSOP20 | MP | |
| TA31275FNG(*) | Remote controls | Extremely low-power radio | RX | 315 M/ 434 M |
10.7 MHz | Y | Y | SSOP24 | MP |
| TB31370FNG | RKE/ TPMS | Extremely low-power radio | RX | 315 M | 220 kHz (BW=300 kHz) |
Y | Y | SSOP24 | MP |
| TB31371FNG | RKE/ TPMS | Extremely low-power radio | RX | 434 M | 220 kHz (BW=300 kHz) |
Y | Y | SSOP24 | MP |
| TB31372FNG | RKE/ TPMS | Extremely low-power radio | RX | 315 M | 220 kHz (BW=300 kHz) |
Y | Y | SSOP24 | MP |
| TB31373FNG | RKE/ TPMS | Extremely low-power radio | RX | 434 M | 220 kHz (BW=300 kHz) |
Y | Y | SSOP24 | MP |
| TA32305FNG(*) | Remote controls | Extremely low-power radio | TX/ RX | 315 M/ 434 M |
80 kHz (BW=80 kHz) |
Y | Y | SSOP30 | MP |
| TC32306FTG | RKE/ TPMS | Extremely low-power radio | TX/ RX | 315 to 915 M | 230 kHz / 280 kHz (BW= 320 kHz / 260 kHz) |
Y | Y | QFN36 | D |
| TB32302FG(*) | Telemeters | Specified low-power radio | TX/ RX | 426 M/429 M | 1st 21.7 MHz 2nd 455 kHz |
Y | Y | QFP52 | MP |
MP: Mass production / D: Under development
* Intended for consumer applications. Contact Toshiba if you want to use this device for automotive applications.
| Part Number | ROM | RAM | Key Features | Package | Status |
|---|---|---|---|---|---|
| TMP89FM46KDUG(*)/ TMP89FM46LDUG(*) |
32 Kbytes | 2048 bytes | 10-bit AD converter (8 channels) UART/SIO (1 channel) I2C/SIO (1 channel) UART (1 channel) 8-bit timer (4 channels) 16-bit timer (2 channels) Watchdog timer Voltage detection circuit Power-on reset circuit |
LQFP48 | MP |
| TMP92CD54IFG/ TMP92FD54AIFG |
512 Kbytes | 32768 bytes | 10-bit AD converter (12 channels) UART/SIO (2 channels) I2C/SIO (3 channels) SEI (1 channel) 8-bit timer (8 channels) 16-bit timer (2 channels) Watchdog timer |
LQFP100 | D |
MP: Mass production / D: Under development
* Intended for consumer applications. Contact Toshiba if you want to use this device for automotive applications.
| Part Number | Function | Output Voltage | Input Voltage | Key Features | Package | Status |
|---|---|---|---|---|---|---|
| TB9000FG | Automotive CPU voltage regulator with a watchdog timer | 5 V | 4 5 V | Low current consumption: 120 µA Watchdog timer enable/disable Reset detection at 4.7 V External transistor required |
SSOP16 | MP |
| TB9001FNG | Automotive CPU voltage regulator with a watchdog timer | 5 V | 45 V | Low current consumption: 95 µA Internal 32-kHz clock External transistor required |
SSOP20 | MP |
| TB9004FNG | Automotive CPU dual voltage regulator with a watchdog timer | 5 V | 45 V | Low current consumption: 0 µA typ. (VCC1 / VCC2: OFF) Selectable from 3.4 V, 2.5 V and 1.5 V Two reset pins External transistor required |
SSOP24 | MP |
MP: Mass production
Product Introduction
* System and product names mentioned herein may be trademarks or registered trademarks of respective companies or organizations.