Offline Regulators | NCP1051

单片高电压门级振荡器电源开关稳压器

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概览

NCP1050 至 NCP1055 为单片高稳压器，可使最终产品设备符合低待机功耗要求。该器件系列组合了所需的转换器功能，为办公室自动化、消费品和工业产品提供了一个简单经济的电源系统方案。 此类器件适用于直接采用整流交流线路电源运行。在反激转换器应用中，对于固定交流输入 100 V、115 V 或 230 V，它们能够提供 6.0 W 至 40 W 的输出功率，对于 85 V 至 265 V 的可变交流输入，则能提供 3.0 W 至 20 W 的输出功率。 此器件系列具有有源启动稳压器电路，无需在转换器变压器上设置辅助偏置绕组，还具有采用可编程计时器的故障逻辑用于实现过载保护，独特的门控振荡器配置用于带双脉冲抑制的极快环路响应，电源开关电流限制，带磁滞的输入欠压锁定，高温关断和自动重启故障检测。此类器件采用经济型 8 引脚双列直插封装。

  • AC–DC Converters
  • Wall Adapters
  • Portable Electronic Chargers
  • Low Power Standby and Keep–Alive Supplies
  • Startup Circuit Eliminates the Need for Transformer Auxiliary Bias Winding
  • Optional Auxiliary Bias Winding Override for Lowest Standby Power Applications
  • Converter Output Overload and Open Loop Protection
  • Auto Restart Fault Protection
  • IC Thermal Fault Protection
  • Unique, Dual Edge, Gated Oscillator Configuration for Extremely Fast Loop Response
  • Oscillator Frequency Dithering with Controlled Slew Rate Driver for Reduced EMI
  • Low Power Consumption Allowing European Blue Angel Compliance
  • On–Chip 700 V Power Switch Circuit and Active Startup Circuit
  • Rectified AC Line Source Operation from 85 V to 265 V
  • Input Undervoltage Lockout with Hysteresis
  • Oscillator Frequency Options of 44 kHz, 100 kHz, 136 kHz
  • Pb-Free Packages are Available

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CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Control Mode

fsw Typ (kHz)

fJitter Typ (%)

Stand-by Mode

RDS(ON) Typ (Ω)

V(BR)DSS Max (V)

IPeak (mA)

HV Start-up Min (V)

DSS (mA)

UVLO

Short Circuit Protection

Over Power Compensation

Brown-out

Latch

Reference Price

NCP1051P100G

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Obsolete

CAD Model

Pb

A

H

P

PDIP-7

626A-01

NA

0

TUBE

50

N

Current Mode

100

Yes

Yes

30

700

200

Yes

6.3

Yes

Yes

No

No

Yes

Price N/A

More Details

NCP1051P136G

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Obsolete

CAD Model

Pb

A

H

P

PDIP-7

626A-01

NA

0

TUBE

50

N

Current Mode

136

Yes

Yes

30

700

200

Yes

6.3

Yes

Yes

No

No

Yes

Price N/A

More Details

NCP1051P44G

Loading...

Obsolete

CAD Model

Pb

A

H

P

PDIP-7

626A-01

NA

0

TUBE

50

N

Current Mode

44

Yes

Yes

30

700

200

Yes

6.3

Yes

Yes

No

No

Yes

Price N/A

More Details

NCP1051ST100T3G

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Obsolete

CAD Model

Pb

A

H

P

SOT-223-4 / TO-261-4D

0.0318

1

260

REEL

4000

N

Current Mode

100

Yes

Yes

30

700

200

Yes

6.3

Yes

Yes

No

No

Yes

Price N/A

More Details

NCP1051ST136T3G

Loading...

Obsolete

CAD Model

Pb

A

H

P

SOT-223-4 / TO-261-4D

0.0318

1

260

REEL

4000

N

Current Mode

136

Yes

Yes

30

700

200

Yes

6.3

Yes

Yes

No

No

Yes

Price N/A

More Details

NCP1051ST44T3G

Loading...

Obsolete

CAD Model

Pb

A

H

P

SOT-223-4 / TO-261-4D

0.0318

1

260

REEL

4000

N

Current Mode

44

Yes

Yes

30

700

200

Yes

6.3

Yes

Yes

No

No

Yes

Price N/A

More Details

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