NCP302, NCP303

http://onsemi.com

21

2

Input

1

Reset Output

GN

D

5

NCP303

LSN18T1

3

Reset Output

To MCU or Logic

Circuitry

Power Supply 1

Power Supply 2

Power Supply 3

2

Input

1

GN

D

NCP300

LSN45T1

3

GN

D

3

2

Input

1

GN

D

NCP300

LSN33T1

3

GN

D

3

For monitoring power supplies with a time delay reset, only a single NCP303 with delay capacitor is required.

Figure 45. Multiple Power Supply Undervoltage

Supervision with Time Delay Reset

Reset Output

Reset Output