![]() |
Electronic Components Datasheet Search |
|
TPS61160DRVTG4 Datasheet(PDF) 18 Page - Texas Instruments |
|
|
|
TPS61160DRVTG4 Datasheet(HTML) 18 Page - Texas Instruments |
18 / 39 page ![]() 18 TPS61160, TPS61161 SLVS791E – NOVEMBER 2007 – REVISED JULY 2016 www.ti.com Product Folder Links: TPS61160 TPS61161 Submit Documentation Feedback Copyright © 2007–2016, Texas Instruments Incorporated All bits are transmitted MSB first and LSB last. Figure 15 shows the protocol without acknowledge request (Bit RFA = 0) as well as the with acknowledge (Bit RFA = 1) request. Prior to both bytes, device address byte and data byte, a start condition must be applied. For this, the CTRL pin must be pulled high for at least tstart (2 μs) before the bit transmission starts with the falling edge. If the CTRL pin is already at high level, no start condition is needed prior to the device address byte. The transmission of each byte is closed with an End-of-Stream condition for at least tEOS (2 μs). The bit detection is based on a Logic Detection scheme, where the criterion is the relation between tLOW and tHIGH. It can be simplified to: High Bit: tHIGH > tLOW, but with tHIGH at least 2 × tLOW, see Figure 15. Low Bit: tHIGH < tLOW, but with tLOW at least 2 × tHIGH, see Figure 15. The bit detection starts with a falling edge on the CTRL pin and ends with the next falling edge. Depending on the relation between tHIGH and tLOW, the logic 0 or 1 is detected. The acknowledge condition is only applied if: • Acknowledge is requested by a set RFA bit. • The transmitted device address matches with the device address of the device. • 16 bits is received correctly. If the device turns on the internal ACKN-MOSFET and pulls the CTRL pin low for the time tACKN, which is 512 μs maximum then the Acknowledge condition is valid after an internal delay time tvalACK. This means that the internal ACKN-MOSFET is turned on after tvalACK, when the last falling edge of the protocol was detected. The master controller keeps the line low in this period. The master device can detect the acknowledge condition with its input by releasing the CTRL pin after tvalACK and read back a logic 0. The CTRL pin can be used again after the acknowledge condition ends. Note that the acknowledge condition may only be requested in case the master device has an open drain output. For a push-pull output stage, the use a series resistor in the CRTL line to limit the current to 500 μA is recommended to for such cases as: • an accidentally requested acknowledge, or • to protect the internal ACKN-MOSFET. |
Similar Part No. - TPS61160DRVTG4 |
|
Similar Description - TPS61160DRVTG4 |
|
|
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 |