AN1978 - APPLICATION NOTE

12/14

Figure 16: Short-circuit on Vcc during the activation.

Figure 17: Short-circuit on Vcc after the activation.

Conditions:

V

V

5/3V=H.

CH1: Vcc

CH2: CMDVCC.

CH3: RST .

CH4 : Vcc output current

In this case the short circuit

is

present

before

and

during

the

activation

sequence,

then

the

automatic

deactivation

starts as soon as the fault

is acknowledged.

Conditions:

V

V

5/3V=H.

CH1: Vcc

CH2: CMDVCC.

CH3: RST .

CH4 : Vcc output current

In this case the short circuit

is

present

before

and

during

the

activation

sequence,

then

the

automatic

deactivation

starts as soon as the fault

is acknowledged.

Conditions:

V

V

5/3V=H.

CH1: Vcc

CH2: CMDVCC.

CH3: RST .

CH4 : Vcc output current

In this case the short circuit

is

present

before

and

during

the

activation

sequence,

then

the

automatic

deactivation

starts as soon as the fault

is acknowledged.

Conditions:

V

V

5/3V=H

CH1: Vcc

CH2: CMDVCC.

CH3: RST .

CH4 : Vcc output current

In this case the short

circuit

acts

after

the

activation sequence then

the automatic deactivation

starts after about 8µs.

Conditions:

V

V

5/3V=H

CH1: Vcc

CH2: CMDVCC.

CH3: RST .

CH4 : Vcc output current

In this case the short

circuit

acts

after

the

activation sequence then

the automatic deactivation

starts after about 8µs.

Conditions:

V

V

5/3V=H

CH1: Vcc

CH2: CMDVCC.

CH3: RST .

CH4 : Vcc output current

In this case the short

circuit

acts

after

the

activation sequence then

the automatic deactivation

starts after about 8µs.