6.7

Thermal shutdown

The STDRIVEG611 provides a thermal shutdown protection feature.

When, during active mode, the junction temperature reaches the TTSD temperature threshold, the device turns the

driver outputs off to leaves the half-bridge in 3-state and signals this condition forcing the FLT pin low. The status

of all the input pins is ignored.

When the junction temperature is lower than TTSD-THYS, the device operation is restored and the FLT pin is

released.

Figure 16. Thermal shutdown behavior

TJ

TTSD

THYS

LIN

OUTL

FLT

STBY

TJ

TTSD

THYS

HIN

OUTH

FLT

STBY

The overtemperature detection is inactive when the device is operating in standby mode or in VCC UVLO to

minimize consumption. On standby mode exit or VCC UVLO exit, overtemperature requires tTSD to protect

against overtemperature.

Figure 17. Thermal shutdown vs. standby

TJ

TTSD

THYS

LIN/HIN

OUTL/OUTH

FLT

STBY

tTSD

STATUS

ACTIVE

OVERTEMP.

ACTIVE

OVERTEMP.

STANDBY

ACTIVE OT

STDRIVEG611

Device description

DS14457 - Rev 2

page 21/33