Secondary Side Controllers | NCP4305

辅助侧同步整流驱动器，用于高能效 SMPS 拓扑结构

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概览

NCP4305 是一款高性能驱动器，专门为控制开关模式电源中的同步整流 MOSFET 而设计。由于其高性能驱动器和多功能性，可用于多种拓扑结构，如 DCM 或 CCM 反激、准谐振反激、正向和半桥谐振 LLC。外部可调最短开关时间间隔时段的组合有助于抵御 PCB 布局和其他寄生元件产生的振铃。SR 系统的可靠低噪音运行由于自同步功能而得以保证。NCP4305 还利用 MOSFET 的驱动器开尔文连接，实现了满负载下的高能效运行，利用轻负载检测结构实现了轻负载下的高能效。该驱动器精确的关断阈值、极低的关断延迟时间和高接受电流功能可实现最长的同步整流 MOSFET 导通时间以及最高的 SMPS 能效。这种高准确性驱动器和 5V 门极箝位实现了 GaN MOSFET 的使用。

  • High Power Density AC/DC Power Supplies
  • Notebook Adapters
  • Server Power Supplies
  • ATX & All-in-one Power Supplies
  • High Density USB Adapters
  • Precise True Secondary Zero Current Detection with Adjustable Threshold
  • Typically 20 ns Turn off Delay from Current Sense Input to Driver
  • Zero Current Detection Pin Capability up to 200 V
  • Optional Ultrafast (7ns) Trigger Input
  • Disable Input
  • Adjustable Minimum ON Time and Minimum OFF Time
  • Self Synchronization
  • 8 A Sink, 4 A Source Drive capability
  • Light Load Detection with Modulated Gate Drive
  • 4.5 V & 9 V UVLO Options and 36 V(Max)

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Package Type

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TA Max (°C)

Reference Price

NCP4305ADR2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

751-07

3

260

REEL

2500

N

37

N/A

0.0056

-40

125

Price N/A

More Details

NCP4305AMTTWG

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Lifetime

CAD Model

Pb

A

H

P

WDFN-8

511AT

1

260

REEL

3000

N

37

N/A

0.0056

-40

125

$0.5333

More Details

NCP4305DDR2G

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Active

CAD Model

Pb

A

H

P

SOIC-8

751-07

3

260

REEL

2500

N

37

N/A

0.006

-40

125

$0.5573

More Details

NCP4305DMNTWG

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Active

CAD Model

Pb

A

H

P

DFN-8

488AF

1

260

REEL

4000

N

37

N/A

0.006

-40

125

$0.56

More Details

NCP4305DMTTWG

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Active

CAD Model

Pb

A

H

P

WDFN-8

511AT

1

260

REEL

3000

N

37

N/A

0.006

-40

125

$0.5333

More Details

NCP4305QDR2G

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Last Shipments

CAD Model

Pb

A

H

P

SOIC-8

751-07

3

260

REEL

2500

N

37

N/A

0.006

-40

125

Price N/A

More Details

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