TLE7809G Datasheet, PDF(23/52 Page) Infineon Technologies AG – Integrated double low-side switch, high-side/LED driver, hall supply, wake-up inputs and LIN communication with embedded MCU (16kB Flash)

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TLE7809G Datasheet, PDF (23/52 Pages) Infineon Technologies AG – Integrated double low-side switch, high-side/LED driver, hall supply, wake-up inputs and LIN communication with embedded MCU (16kB Flash)

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TLE7809G

SPI (Serial Peripheral Interface)

Table 9 SPI Output Data (contâd)

Pos. Output Data1)

Supply Output (OC / OT)

Output Data after Wake-up2)

Supply Output (OC / OT)

VS UV5) [only âSBC Active Modeâ]

âlowâ

1) â1â = ON / enable, â0â = OFF / disable, OC = overcurrent, UV = undervoltage,

OT = overtemperature (temp. shut-down)

2) â1â = ON, â0â = OFF, OC = overcurrent, UV = undervoltage, OT = overtemperature (temp. shut-down)

3) Becomes valid after start-up time for voltage monitoring

4) Voltage monitoring not active in SBC Standby Mode

5) This bit needs to be read twice to indicate an undervoltage condition (only for VS ramping down - bit15 set to â1â)

Table 10 Diagnostic, Protection and Safety Functions

Module

Function

Window Watchdog WD1) Failure

LDO (VReg)

OC2) at VCC

voltage regulator

UV condition

(VS related)

VCC-UV

Effect

Reset; see Table 11 âReset

Behavior SBCâ on Page 25

current limitation

Reset, see Table 11 âReset

Behavior SBCâ on Page 25

Reset, see Table 11 âReset

Behavior SBCâ on Page 25

Concept

SPI status latched until

next read-out

Condition occurs at VS

below operating range

WD current threshold

(Stop Mode)

OT3)

WD only disabled if

VCC-current < threshold and

WD not enabled via SPI

WD enabled if

VCC-current > threshold

VCC-shutdown, Reset as soon as automatically enabled with

VCC falls below reset threshold, see thermal hysteresis

Table 11 âReset Behavior SBCâ

on Page 25

OT prewarning

SPI status output

SPI status latched until

next read-out

internal supply

[SBC]

(VS related)

VINT-UV

(internal) Reset; register settings â

cleared; SPI status output; see

Table 11 âReset Behavior SBCâ

on Page 25

LS-Switches

OC, OT

LSx-shutdown; SPI status output;

signalization via ERR pin

re-activation via SPI

command; SPI status

latched until next read-out

microcontroller error

signalization (ERR)

LSx-shutdown; see âError

re-activation via SPI

Interconnect (ERR)â on Page 32 command

Supply Output

OC, OT

Supply-shutdown; SPI status

output

re-activation via SPI

command; SPI status

latched until next read-out

Data Sheet

Rev. 3.01, 2008-04-15

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