L9663-TR STMicroelectronics

L9663 Automotive PSI5 Transceiver IC Datasheet - production data Short to ground tolerant with 1.5 V ground shift 32-bit SPI interface with address multiplexing Operating voltage: V = 4.8 V (5.2 V for sync B pulses with 3.5 V step) to 35 V Ambient temperature range: -40C to 140 C * 3* 36 Package: VFQFPN28 or TQFP32EP * * 36 TQFP32 VFQFPN28 (Exposed pad down) Description The Peripheral Sensor Interface (PSI5) is an interface for automotive sensor applications. PSI5 Features is an open standard based on existing sensor interfaces for peripheral sensors and offers a AEC-Q100 qualified universal and flexible solution for multiple sensor 2-channel PSI5 transceiver compatible with applications. rev. 1.3 and rev. 2.x The PSI5 interface allows asynchronous or Manchester coded digital data transmission synchronous operations and different bus modes. High data transmission speed of 125 kbps The device is compatible with both v1.3 and v2.x (optional 83.3 kbps and 189 kbps) PSI5 revisions (limitations are specified inside this document). It operates with a wide range of High EMC robustness and low emission sensor supply current and variable data word Bootstrap circuits for sync pulses length (8 to 28 bit). Current limitation and voltage clamp on The sensors are connected to the ECU using the interface pins same line for power supply and data Integrated charge pump stage for pre- transmission. The transceiver IC provides a pre- regulation with spread spectrum approach regulated voltage to the sensors and reads in the Integrated FLL module for high accuracy timing transmitted sensor data. control The PSI5 interface allows either point to point Reverse voltage protection structure connection or bussed mode. Table 1. Device summary Order code Package Packing L9663 Tray TQFP32 (Exposed pad) L9663-TR Tape & Reel L9663-1 Tray VFQFPN28 L9663-TR-1 Tape & Reel July 2019 DS11401 Rev 5 1/105 This is information on a product in full production. www.st.comContents L9663 Contents 1 Overall description 6 1.1 Simplified block diagram 6 1.2 Main functionality 7 1.3 VQFPN28 pins description . 9 1.4 TQFP32 pins description 11 1.5 Maximum ratings . 13 1.6 Detailed block diagram . 14 1.7 Power up sequence . 16 2 Power supply 17 2.1 Internal supply . 17 2.2 V supply and pre-regulator 18 AS 2.3 Voltage supply for synchronous pulse generation V SYNCx 19 2.4 Power supply for PSI5 sensor line 20 2.5 Frequency references . 22 2.6 Reset handling . 24 3 Satellite interface . 25 3.1 Receiver with digital sampling and filtering . 25 3.2 Manchester decoder and error detection . 26 3.3 Receive block 26 3.3.1 PSI5 receive register . 27 3.3.2 Sensor data buffer . 30 3.3.3 Interrupt generator . 33 3.3.4 Automatic storage of sensor initialization data . 33 3.4 Upstream data buffer 35 3.5 Trigger pulse generator for synchronous pulses . 36 3.6 Synchronous pulse generator . 37 3.7 Safety concepts 38 3.7.1 Voltage monitoring check 38 3.7.2 Sensor data consistency 38 3.7.3 Buffer empty check 39 2/105 DS11401 Rev 5