 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
TLE9222 Datasheet(PDF) 10 Page - Infineon Technologies AG |
|
||||||||||||||||||||||||||||||
TLE9222 Datasheet(HTML) 10 Page - Infineon Technologies AG |
|
|
10 / 43 page  Data Sheet 10 Rev. 1.0 2015-06-12 TLE9222 Functional Description 4.1.1 BD_Normal Mode In BD_Normal mode all interfaces and functions of the TLE9222 are in operating condition. The communication controller interface is fully active; the RxD output reflects the data on the bus pins, the TxD drives the data to the transmitter and the TxEN input enables or disables the transmitter. When the transmitter is activated, fail safe functionality like the transmitter time-out, overtemperature detection and bus error detection are also enabled. The bus biasing is connected to VCC / 2 via the internal common mode resistors. With the RxEN flag in the status register the bus states idle or active can be read out through the SPI interface. The host interface is active and fully functional, as well as status register read-out on the SPI interface. Through the bus guardian interface, the transmitter can be activated or disabled. The wake-up detector is active, but received wake-up information is not flagged while in BD_Normal mode. The power supply interface including voltage monitor on both VCC and VIO is active. Undervoltage events are signalled on the ERRN output and in the status register, and trigger a mode transition to BD_Standby mode. BD_Normal mode can only be entered with a valid host command while both power supplies are within their operational range. 4.1.2 BD_Standby Mode After power-up the TLE9222 automatically enters BD_Standby, an idle mode with optimized low power consumption. In BD_Standby mode neither sending nor receiving data is possible, both the transmitter and the receiver are disabled. The bus biasing is connected to GND through the internal common mode resistors. The communication controller interface is inactive. The TxD and the TxEN inputs are not functional. The RxD output is used for signalling wake-up or error information, depending on the host command. The host interface is active and fully functional, as well as status register read-out on the SPI interface. The bus guardian interface is inactive and detection of bus transmission through the RxEN flag in the status register is not possible. The bus failure detector is not active, no bus failure can be detected. The wake-up detector is active and signals wake-up requests on the ERRN and RxD outputs while the host command is BD_Standby mode. The power supply interface with voltage monitoring on both VCC and VIO is active. If the TLE9222 is forced to BD_Standby mode because of undervoltage events while the host command is BD_Normal mode, this is signalled on the ERRN output. Additionally, the information is stored in the status register. 4.1.3 BD_Off Condition The TLE9222 enters the BD_Off condition when the VCC power supply drops below the uBDPDVCC power-on- reset threshold. In this state the transmitter and the receiver are turned off, the wake-up function is not operational, the RxD and ERRN outputs are “low” and the SDO output is in high impedance state. If the VIO reference supply is available, the logical inputs are set to their default states as given in Table 2. Table 2 Logic inputs when unconnected / default states Input Signal Default State TxD Low TxEN High STBN Low BGE Low |
Similar Part No. - TLE9222 |
|
Similar Description - TLE9222 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
