NCP305 데이터 시트보기 (PDF) - ON Semiconductor

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NCP305

Voltage Detector Series

ON Semiconductor 

2.85 V

2.70 V

NCP304, NCP305

APPLICATION CIRCUIT INFORMATION

VDD

2 Input

VDD

*

NCP304

Series

1

Reset Output

Microprocessor

Reset

3 GN-

D

* Required for

NCP305

GND

Figure 26. Microprocessor Reset Circuit

2 Input

NCP304

LSQ27T1

1

Reset Output

3 GN-

D

Vin < 2.7 ON

To Additional Circuitry

Vin > 2.835 ON

Figure 27. Battery Charge Indicator

5.0 V

3.3 V

Vsupply

2 Input

NCP305

LSQ45T1

1

Reset Output

3 GN-

D

2 Input

NCP305

LSQ30T1

1

Reset Output

3 GN-

D

Low state output if either

power supply is below the

respective undervoltage de-

tector threshold but greater

than 1.0 V.

Figure 28. Dual Power Supply Undervoltage Supervision

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