低功耗离线恒定电流 PWM 电流模式控制器,带高电压启动电流源

Favorite

概览

NCP1366 提供了一个新型方案,目的是在通用电源反激式应用中实现从几瓦到 20 W 的输出功率水平。由于采用新方法,该新型控制器不再需要用于恒定电流调节的辅助反馈电路,同时使用传统的光耦合器和 TL431 电压参考实现了出色的线路和负载调节。NCP1366 在高负载时以谷锁闭准谐振峰值电流控制模式运行,以提供高能效。当辅助侧功率开始消失时,该控制器将自动调节占空比,然后在更低负载下,该控制器通过谷开关检测,以固定峰值电流进入脉冲频率调制。这种技术允许在微小的虚拟负载下保持输出调节。前 4 个谷中的谷锁闭可防止谷跳跃运行,然后在更低负载下的谷开关可提供高能效。

  • AC-DC USB chargers for cell phones, tablets, and other portable devices
  • AC-DC USB chargers for cell phones, tablets, and other portable devices
  • 560-V Startup Current Source
  • No frequency clamp, 80 or 110 kHz Maximum Switching Frequency
  • Quasi-Resonant with Valley Switching Operation
  • Fixed Peak Current & Deep frequency foldback @ light load operation
  • Wide Operation VCC range (up to 28 V)
  • Cycle by Cycle peak current limit
  • CS & Vs/ZCD pin Short and Open Protection
  • Internal Temperature Shutdown
  • Constant Current Primary-side feedback eliminates secondary controller
  • ±10% Current Regulation
  • Clamped Gate-drive Output for Mosfet
  • Build-in soft-sart
  • Low Start-up current ( 2 μA typ.)
  • Less than 10 mW No-Load Performance at High Line with NCP1366 version
  • Less than 30 mW No-Load Performance at High Line with NCP1361 version
  • These are Pb-Free Devices

Product List

If you wish to buy products or product samples, please log in to your onsemi account.

搜寻

Close Search

产品:

4

分享

Product Groups:

Orderable Parts:

4

产品

状况

CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Topology

Control Mode

fsw Typ (kHz)

Stand-by Mode

UVLO (V)

Short Circuit Protection

Latch

Soft Start

VCC Max (V)

Drive Cap. (mA)

Reference Price

NCP1366AABAYDR2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-7

1

260

REEL

2500

Y

Flyback

Current Mode

Variable

Yes

6.5

Yes

Yes

Yes

28

2000 / 1000

$0.4037

More Details

NCP1366BABAYDR2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-7

1

260

REEL

2500

Y

Flyback

Current Mode

Variable

Yes

6.5

Yes

No

Yes

28

2000 / 1000

$0.3694

More Details

NCP1366BABCYDR2G

Loading...

Obsolete

CAD Model

Pb

A

H

P

SOIC-7

1

260

REEL

2500

N

Flyback

Current Mode

Variable

Yes

6.5

Yes

Yes

Yes

28

2000 / 1000

Price N/A

More Details

NCP1366EABAYDR2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-7

3

260

REEL

2500

Y

Flyback

Current Mode

Variable

Yes

6.5

Yes

No

Yes

28

2000 / 1000

$0.2872

More Details

Show More

1-25 of 25

Products per page

Jump to :