TLE9461ES datasheet(32/140 Pages) INFINEON

32 / 140 page

TLE9461ES

Lite CAN SBC Family

System Features

Datasheet

Rev.1.1

2019-09-27

5.2

Wake Features

The following wake sources are implemented in the device:

• Static Sense: WK/VSENSE input and/or GPIO WK input are permanently active as a wake source, i.e WK_EN

is set and/or FO/GPIO is enabled as wake input (see Chapter 9.2.2 & Chapter 11.1.3)

• Cyclic Sense: WK/VSENSE input only active during On-time of Cyclic Sense period. Internal timer is

activating GPIO HS during On-time for sensing the WK/VSENSE input (see Chapter 5.2.1)

• Cyclic Wake: wake-up is controlled by internal timer, wake inputs are not used for Cyclic Wake (see

Chapter 5.2.2)

• CAN wake: Wake-up via CAN message, i.e. CAN wake-up pattern (WUP, see also Chapter 8)

5.2.1

Cyclic Sense

The Cyclic Sense feature is intended to reduce the quiescent current of the device and the application.

In the Cyclic Sense configuration, the GPIO (configured as high-side driver) is switched On periodically,

controlled by TIMER_CTRL. The high-side switch supplies external circuitries e.g. switches and/or resistor

arrays, which are connected to the wake input WK (see Figure 6). Any edge change of the WK/VSENSE input

signal during the On-time of the Cyclic Sense period causes a wake-up. Depending on the SBC mode, either

the INTN is pulled Low (SBC Normal Mode and Stop Mode) or the SBC is woken enabling the VCC1 (after SBC

Sleep Mode).

Figure 6

Cyclic Sense Working Principle

Switching

Circuitry

Config. as HS

GPIO

FO/GPIO

WK/

VSENSE

SBC

STATE

MACHINE

GPIO_CTRL

TIMER_CTRL

Period / On-Time

Signal

to uC

INTN

10k

TLE9461ES bảng dữ liệu(PDF) 32 Page - Infineon Technologies AG

TLE9461ES bảng dữ liệu(HTML) 32 Page - Infineon Technologies AG

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

bảng dữ liệu tải về

Link URL