NCP348 데이터 시트보기 (PDF) - ON Semiconductor

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NCP348

Positive Overvoltage Protection Controller with Internal Low RON NMOS FET and Status FLAG

ON Semiconductor 

Vin

Vout

FLAG

NCP348, NCP348AE

TIMING DIAGRAMS

UVLO

ton

0.3 V

tstart

<OVLO

Vin − (RDS(on) I)

1.2 V

Figure 3. Startup

OVLO

Vin

Vout

toff

Vin − (RDS(on) I)

0.3 V

FLAG

tstop

0.4 V

Figure 4. Shutdown on Overvoltage Detection

EN

Vout

Vin − (RDS(on) I)

1.2 V

tdis

FLAG

0.3 V

Figure 5. Disable on EN = 1

EN

Vin

FLAG

1.2 V

OVLO

UVLO

100 ms

Figure 6. FLAG Response with EN = 1

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