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NCP361

USB Positive Overvoltage Protection Controller with Internal PMOS FET and Overcurrent Protection

ON Semiconductor 

Vin

Vout

FLAG

UVLO

ton

0.8 Vin

tstart

1.2 V

Figure 3. Start Up Sequence

NCP361, NCV361

<OVLO

Vin − RDS(on) x I

Vin

Vin − RDSon x I

Vout

OVLO

toff

0.3 V

tstop

FLAG

0.4 V

Figure 4. Shutdown on Over Voltage Detection

EN

1.2 V

tdis

Vout

Vin − RDS(on) x I

0.3 V

FLAG

Figure 5. Disable on EN = 1

EN

Vout

FLAG

1.2 V

OVLO

UVLO

tstart

Figure 6. FLAG Response with EN = 1

IN

OUT

Voltage, Current and Thermal Detection

Figure 7.

CONDITIONS

VIN > OVLO or VIN < UVLO

IN

OUT

Voltage, Current and Thermal Detection

CONDITIONS

UVLO < VIN < OVLO

Figure 8.

TYPICAL OPERATING CHARACTERISTICS

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