TLE7263E datasheet(13/63 Pages) INFINEON

tên linh kiện	TLE7263E

Giải thích chi tiết về linh kiện	Integrated HS-CAN, LIN, LDO and HS Switch System Basis Chip

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TLE 7263E

Features

Data Sheet

Rev. 1.51, 2007-06-22

4.4

SBC Sleep Mode with Cyclic Wake

The SBC Sleep Mode has the advantage of reducing the current consumption to a

minimum. During this mode the integrated voltage regulator for external supply is turned

off. In case the connected microcontroller needs to get activated periodically, the Cyclic

Wake feature in combination with the SBC Sleep Mode can be activated (see Figure 6).

Figure 6

State Diagram “SBC Sleep Mode with Cyclic Wake”

Start Up

Power Up

cyclic_wake_sleep_TLE7263

SBC Active Mode

MS2

Vcc1

MS1

00 / 1

MS0

0 / 1

SBC Sleep Mode

MS2

OFF

Vcc1

MS1

MS0

HS-Switch = OFF

HS Cyclic Wake

MS2

Vcc1

MS1

MS0

HS-Switch = ON

µController SPI-Command:

- select „cyclic wake“ via SPI Bit

- select „cyclic wake period“ via SPI Timing Bits

- select HS-Switch on-time via SPI „On-Time Bit“

- select SBC Sleep Mode via SPI Mode Bits

- window watchdog activation / deactivation via SPI

automatic transition by:

- cyclic wake period

- CAN message

- LIN message

1) if initialization fails, device is

switched into SBC Standby mode

Initialization of

MONx inputs 1)

sampling of MON1…3 inputs

[MON4 active permanently]

µC 2)

cyclic wake-up

WKO

select SBC

operating mode

STS

SBC Standby Mode

Vcc1

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