Secondary Side Controllers | NCP4355

辅助侧控制器，SMPS 关闭模式，用于低待机功率适配器

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概览

NCP4355 是一款辅助侧 SMPS 控制器，用于需要极低无负载功耗的应用。此器件能够检测无负载条件，并让电源进入低功耗关闭模式。在关闭模式下，初级侧控制器关闭，能量由输出电容提供，因而无需耗费电力来保持调节。在关闭模式下，输出电压松弛，可降至可调电平。需要更多能量时，NCP4355 通过流经 ONOFF 光耦合器的 ONOFF 电流自动重新启动初级侧控制器。NCP4355 用有效导通信号控制主控制器，即只在打开模式下驱动光耦合器电流，从而最大限度地降低关闭模式时的功耗。

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Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

VCC Max (V)

Vref Typ (V)

ICC Max (A)

TA Min (°C)

TA Max (°C)

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NCP4355ADR2G

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Obsolete

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CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

36

1.25

1.35E-4

-40

125

Price N/A

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NCP4355BDR2G

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Obsolete

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CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

36

1.25

1.35E-4

-40

125

Price N/A

More Details

NCP4355CDR2G

Contact Sales

Active

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

Y

36

1.25

1.35E-4

-40

125

$0.2415

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可靠性数据

Die Related Summary Data

Device: NCP4355CDR2G

Equivalent to wafer fab process: ONC25

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等效器件小时

平均故障间隔时间/平均无故障时间（按小时计算）

FITS

ONC25

1

2712519294

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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