L99PM62XP datasheet(32/98 Pages) STMICROELECTRONICS

номер детали	L99PM62XP

подробное описание детали	Power management IC with LIN and high speed CAN

PDF	98 Pages

Scroll/Zoom	100%

производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

Logo

32 / 98 page

Description

L99PM62XP

32/98

Doc ID 16363 Rev 4

Wake up from short to GND condition

Even if CAN pattern wake up option is enabled, but the CAN transceiver was set in standby

mode after a qualified permanent dominant state, recessive level at CAN, switches the

L99PM62XP to active mode.

No pattern wake up

If the CAN pattern wake up option is disabled, any transition either dominant (low) state to

recessive (high) state or recessive (high) state to dominant (low) state switches the

L99PM62XP to active mode (after a filtering time of 2 µs).

Note:

A wake up caused by a message on the bus starts the voltage regulator and the

microcontroller to switch the application back to normal operation mode.

Figure 18.

CAN wake up capabilities

Note:

Pictures above illustrate the wake up behaviour from V1 standby mode. For wake up from

VBAT standby mode the NRESET signal (with 2 ms timing) is generated instead of the RXDL

(Interrupt) signal.

2.9.3

CAN sleep mode

During active mode it is possible to deactivate the CAN transceiver with a dedicated SPI

command (CR4, CAN_act = 0). The CAN transceiver remains deactivated until it is

activated again. With a deactivated CAN the receiver input termination network is

disconnected from the bus and the CANH, CANL bus lines is driven to GND. The SPLIT

output is also deactivated in this case.

L99PM62XP датащи(PDF) 32 Page - STMicroelectronics