STGAP1S datasheet(28/67 Pages) STMICROELECTRONICS

Part #	STGAP1S

Description	gapDRIVE™: galvanically isolated single gate driver

PDF	67 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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28 / 67 page

Functional description

STGAP1S

28/67

DocID027190 Rev 3

Some examples of the device behavior when the deadtime feature is enabled are shown

from Figure 7 to Figure 10.

Figure 7. Synchronous control signal edges

Figure 8. Control edges signal overlapped, example 1

Figure 9. Control edges signal overlapped, example 2

Figure 10. Control edges signal not overlapped and outside DT (direct control)

When the deadtime function is enabled the STGAP1S reports a “deadtime violation” fault in

case the control unit tries to turn on any of the drivers in one leg during the counting of the

programmed DT time. If such event occurs the DT_ERR flag is set high and latched.

IN-

IN+

GON-GOFF

CONTROL SIGNALS EDGES;

SYNCHRONOUS

DEAD TIME

IN-

IN+

GATE

CONTROL SIGNALS EDGES

OVERLAPPED;

DEAD TIME

IN-

IN+

GON-GOFF

DEAD TIME

CONTROL SIGNALS EDGES

NOT OVERLAPPED,

BUT INSIDE THE DEAD TIME:

IN-

IN+

GON-GOFF

CONTROL SIGNALS EDGES

NOT OVERLAPPED,

OUTSIDE THE DEAD TIME:

DIRECT DRIVING

STGAP1S Datasheet(PDF) 28 Page - STMicroelectronics