TB193/TB293

Real-time object detection and reliable distance measurement for safer, smarter maneuvers

The precise detection of nearby objects is essential for safe and convenient parking in modern vehicles. Bosch’s Ultrasonic Sensor ICs support this functionality with advanced technology.

At the heart of the system are the TB193 master chip and the TB293 sensor chip, which work together to process and interpret ultrasonic signals in real time. This scalable solution enables reliable object detection and distance measurement, supporting both assisted and semi-autonomous parking maneuvers.

Benefits

Cable harness cost and weight reduction of up to 50%

Reduced power consumption by 50%

VASI, a new future proof 1.16 Mbps sensor interface enables raw data transmission for data fusion and AI processing

VASI
Versatile Automotive Sensor Interface

Target applications

Park pilot sensor or ECU

Technical Features


Wiring data communication rate	BUS & P2P up to 1.16 Mbit/s
Data interfaces per ECU-IC	2
Raw data interface	Yes (envelope and transducer signal)
Sensor IC	TB293 (dual fab)
ECU IC	TB193 (dual fab)
Cable concept	Power-over-dataline 2 Wire Bus
ECU pins	4 (2* 2 wire bus)
Sensor pins	3 or 4
Measurement range	0.15m-5m
Transducer output	230mA/48kHz
Current consumption	≤ 230 mA (transmitting) 14 mA (receiving)
Safety	ASIL B
IC junction temperature	150°C

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TB193/TB293 / Ultrasonic Sensor IC Chipset