Motore di ricerca datesheet componenti elettronici |
|
TPIC1021AQDRQ1 Scheda tecnica(PDF) 5 Page - Texas Instruments |
|
|
TPIC1021AQDRQ1 Scheda tecnica(HTML) 5 Page - Texas Instruments |
5 / 20 page OPERATING STATES Unpowered System V V sup sup_under £ Standby Mode Driver : Off RXD: Low INH: High (On) Termination: 30 kW EN = high EN = low EN = high LIN Bus Wake-Up or Nwake Pin Wake-Up V > V EN = low sup sup_under V V sup sup_under £ V V sup sup_under £ V V sup sup_under £ V > V EN = high sup sup_under Sleep Mode Driver : Off RXD: Floating INH: High impedance (Off) Termination: Weak pullup Normal Mode Driver : On RXD: LIN bus data INH: High (On) Termination: 30 kW Normal Mode Sleep Mode TPIC1021A-Q1 www.ti.com.......................................................................................................................................................... SLIS117A – AUGUST 2007 – REVISED JUNE 2009 Figure 1. Operating States Diagram Table 1. Operating Modes LIN BUS MODE EN RXD INH TRANSMITTER COMMENTS TERMINATION Sleep Low Floating Weak current pullup High impedance Off Wake-up event detected, waiting Standby Low Low 30 k Ω (typ) High Off on MCU to set EN Normal High LIN bus data 30 k Ω (typ) High On LIN transmission up to 20 kbps This is the normal operational mode, in which the receiver and driver are active, and LIN transmission up to the LIN specified maximum of 20 kbps is supported. The receiver detects the data stream on the LIN bus and outputs it on RXD for the LIN controller, where recessive on the LIN bus is a digital high, and dominate on the LIN bus is digital low. The driver transmits input data on TXD to the LIN bus. Normal mode is entered as EN transitions high while the TPIC1021A is in sleep or standby mode. Sleep mode is the power saving mode for the TPIC1021A and the default state after power up (assuming EN is low during power up). Even with the extremely low current consumption in this mode, the TPIC1021A can still wake up from LIN bus via a wake-up signal, a low on NWake, or if EN is set high. The LIN bus and NWake are filtered to prevent false wake-up events. The wake-up events must be active for their respective time periods (tLINBUS, tNWake). The sleep mode is entered by setting EN low. Copyright © 2007–2009, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): TPIC1021A-Q1 |
Codice articolo simile - TPIC1021AQDRQ1 |
|
Descrizione simile - TPIC1021AQDRQ1 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEETIT.COM |
Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore 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 |