Figure 6. Smart shutdown timing waveforms in case of overcurrent event

LIN

LVG

SD

open-drain gate

(internal)

comp

Vref

CIN

PROTECTION

Fast shutdown:

the driver outputs are set in SD state

immediately after comparator triggering

even if the SD signal has not yet reached

the lower input threshold

real disable time

t

OC

t2

t1

SD

FROM / TO

CONTROLLER

VBIAS

SMART

SD

LOGIC

CSD

RSD

R ON_OD

R PD_SD

SHUTDOWN CIRCUIT

where:

l

t CIN_SD

t1

t2

RON_OD = VOD/5 mA, see Table 10. Sense comparator (VCC = 15 V, unless otherwise is specified);

RPD_SD (typ.) = 5 V/ISDh

STGIB20M60TS-LZ

Smart shutdown function

DS13453 - Rev 2

page 12/24