STK984-090A-E

NoA2290-10/20

2. Reset Circuit

This circuit performs to release the latch when the Short-circuit Protection is activated and output is latched off. It will

be a normal operation at the RESET=H or in the open-state, and at RESET=L, the gate output will be Lo-state (Output

OFF) for both upper and lower phase.

Reset Circuit Timing Chart

DIAG Hi Delay

Time

Output OFF Delay Time

Output ON

Delay Time

0.25msec

5V

5V

0V

0V

5V

2μsec

3μsec

1μsec

The Reset Time

DIAG Lo Delay Time

Pulse Width : over 20μsec

UT

UB

U Lower-phase VDS

0V

RESET

0V

DIAG1(Latch State)

0V

5V

DIAG1(Steady State)

Charge pump

Voltage

+B1 + 12V

+B1 + 4V (typ)

Operating

+B1