L99PM60J datasheet(13/75 Pages) STMICROELECTRONICS

13 / 75 page

L99PM60J

Detailed description

Doc ID 18309 Rev 6

13/75

Note:

Inputs TXDL and CSN must be terminated to GND in VBAT-standby to achieve minimum

standby current.

This can be achieved with the internal ESD protection diodes of the microcontroller

(microcontroller is not supplied in this mode; V1 is pulled to GND).

2.3

Wake up from standby modes

A wake-up from standby mode switches the device to active mode. This can be initiated by

one or more of the following sources:

All wake-up events from V1-standby mode (except IV1 > ICMP) are indicated to the

microcontroller by a low-pulse at RxDL/NINT (duration: tInterupt)

Wake-up from V1-standby by SPI Access might be used to check the interrupt service

handler.

2.4

Cyclic contact supply

In V1-standby mode, any high side driver output (OUT1..2) can be used to supply external

contacts. Direct drive feature for high side drivers must be enabled by SPI to control the high

side driver outputs by DRV/VSM/TMP pin.

Table 3.

Wake up sources

Wake up source

Description

LIN bus activity

Always active

IV1 > ICMP

Device remains in V1-standby mode with watchdog enabled (If

ICMP = 0) and V1 goes into High Current Mode (Increased Current

Consumption). No interrupt is generated.

SPI Access

Always active (except in VBAT-standby mode)

Wake up event: CSN is low and first rising edge on CLK

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