Secondary Side Controllers | NCP4304

辅助侧控制器，同步整流，用于高能效 SMPS 拓扑结构

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NCP4304A/B 是一款全功能控制器和驱动器，专门为控制开关模式电源中的同步整流电路而设计。由于其多功能性，它可以用于反激、正向和半桥谐振 LLC 等多种拓扑结构中。外部可调最短开关时间的组合有助于抵御 PCB 布局和其他寄生元件产生的振铃。因此，可以保证 SR 系统可靠的无噪声运行。极短关断延迟时间、驱动器的高汲电流能力以及自动封装寄生电感补偿系统可最大程度延长同步整流 MOSFET 导通时间，实现 SMPS 能效的进一步提高。最后，较宽的运行 VCC 范围结合两个版本的驱动器电压箝位，简化了 SR 系统在 24 V 输出应用中的实施。

  • High Power Density AC/DC Power Supplies

  • Notebook Adapters
  • Server Power Supplies
  • ATX Power Supplies

  • Precise True Secondary Zero Current Detection with Adjustable Threshold
  • Automatic Parasitic Inductance Compensation
  • Typically 40 ns Turn off Delay from Current Sense Input to Driver
  • Zero Current Detection Pin Capability up to 200 V
  • Optional Ultrafast Trigger Input
  • Disable Input
  • Adjustable Minimum ON Time and Minimum OFF Time
  • 5 A/2.5 A Peak Current Sink/Source Drive Capability
  • Operating Voltage Range up to 30V

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NCP4304ADR2G

Contact Sales

Active

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

Y

30

N/A

0.0066

-40

125

$0.4782

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NCP4304AMNTWG

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Active

CAD Model

Pb

A

H

P

DFN-8

488AF

1

260

REEL

4000

N

30

N/A

0.0066

-40

125

$0.741

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NCP4304BDR2G

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Active

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

Y

30

N/A

0.0062

-40

125

$0.6207

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NCP4304BMNTWG

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Obsolete

CAD Model

Pb

A

H

P

DFN-8

488AF

1

260

REEL

4000

N

30

N/A

0.0062

-40

125

Price N/A

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可靠性数据

Die Related Summary Data

Device: NCP4304ADR2G

Equivalent to wafer fab process: VHVIC

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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

VHVIC

2

2577173853

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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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