Overview
The L9663-TR, produced by STMicroelectronics, is an Automotive PSI5 Transceiver IC designed for automotive sensor applications. The Peripheral Sensor Interface (PSI5) is an open standard that offers a universal and flexible solution for multiple sensor applications. This transceiver supports both asynchronous and synchronous operations and various bus modes, making it compatible with PSI5 revisions 1.3 and 2.1. It integrates a pre-regulated voltage supply for sensors and facilitates data transmission over the same line used for power supply.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | 4.8 V to 35 V |
| Operating Temperature Range | -40°C to 140°C |
| Data Transmission Speed | 125 kbps (optional 83.3 kbps and 189 kbps) |
| Package Options | VFQFPN28 or TQFP32EP |
| Interface | 32-bit SPI interface with address multiplexing |
| EMC Robustness | High EMC robustness and low emission |
| Protection Features | Reverse voltage protection, current limitation, and voltage clamp on interface pins |
| Ground Shift Tolerance | Short to ground tolerant with ±1.5 V ground shift |
| RoHS Compliance | Ecopack2 |
Key Features
- 2-channel PSI5 transceiver compatible with rev. 1.3 and rev. 2.1
- Manchester coded digital data transmission
- High data transmission speed of 125 kbps (optional 83.3 kbps and 189 kbps)
- High EMC robustness and low emission
- Bootstrap circuits for sync pulses
- Current limitation and voltage clamp on interface pins
- Integrated charge pump stage for pre-regulation with spread spectrum approach
- Integrated FLL module for high accuracy timing control
- Reverse voltage protection structure
- Short to ground tolerant with ±1.5 V ground shift
- 32-bit SPI interface with address multiplexing
Applications
The L9663-TR is designed for automotive sensor applications, supporting a wide range of sensors such as pressure sensors, temperature sensors, and other peripheral sensors. It is suitable for both point-to-point and bussed mode connections, making it versatile for various automotive systems.
Q & A
- What is the L9663-TR used for?
The L9663-TR is used as an Automotive PSI5 Transceiver IC for automotive sensor applications.
- What are the compatible PSI5 revisions for the L9663-TR?
The L9663-TR is compatible with PSI5 revisions 1.3 and 2.1.
- What is the operating voltage range of the L9663-TR?
The operating voltage range is from 4.8 V to 35 V.
- What are the available package options for the L9663-TR?
The available package options are VFQFPN28 and TQFP32EP.
- What is the data transmission speed of the L9663-TR?
The data transmission speed is 125 kbps, with optional speeds of 83.3 kbps and 189 kbps.
- Does the L9663-TR have any protection features?
Yes, it includes reverse voltage protection, current limitation, and voltage clamp on interface pins.
- Is the L9663-TR RoHS compliant?
Yes, the L9663-TR is RoHS compliant with an Ecopack2 grade.
- What is the operating temperature range of the L9663-TR?
The operating temperature range is from -40°C to 140°C.
- What type of interface does the L9663-TR use?
The L9663-TR uses a 32-bit SPI interface with address multiplexing.
- Is the L9663-TR tolerant to ground shifts?
Yes, it is short to ground tolerant with ±1.5 V ground shift.
