NCP4355B データシートの表示（PDF） - ON Semiconductor

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NCP4355B

Secondary Side SMPS OFF Mode Controller for Low Standby Power

ON Semiconductor 

NCP4355

VCC

FBC

ON/OFF

VCC

management

VDD

VREF

IDRIVEON

Power

RESET

SW1

LED

Current

Regulation OTA

Sink only

Power

RESET

VDD

IBIASV

VREFC

SW3

ISNS

QS

QR

OTA

Sink only

Voltage

Regulation

VREF

0.9 x VREF

VSNS

IBIASV

Enabling

Off Mode

Detection

VCC

10%VCC

OFFDET

GND

SW2

1 kHz, 12% D.C.

Oscillator

PowerRESET

Figure 1. Simplified Block Diagram − NCP4355A

VCC

FBC

ON/OFF

VCC

management

VDD

VREF

IDRIVEON

Power

RESET

SW1

LED

Power

RESET

VDD

IBIASV

SW3

QS

QR

Sink only OTA

Voltage

Regulation

VREF

0.9 x VREF

VSNS

IBIASV

Enabling

Off Mode

Detection

VCC

10%VCC

OFFDET

GND

SW2

1 kHz, 12% D.C.

Oscillator

PowerRESET Min Output

Voltage

VREFM

Figure 2. Simplified Block Diagram − NCP4355B

VMIN

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