Offline Regulators | NCP1054
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
Buy/Parametrics Table
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Obsolete
Pb
A
H
P
PDIP-7
NA
0
TUBE
50
N
Current Mode
100
Yes
Yes
15
700
530
Yes
6.3
Yes
Yes
No
No
Yes
Price N/A
More Details
Obsolete
Pb
A
H
P
PDIP-7
NA
0
TUBE
50
N
Current Mode
136
Yes
Yes
15
700
530
Yes
6.3
Yes
Yes
No
No
Yes
Price N/A
More Details
Obsolete
Pb
A
H
P
PDIP-7
NA
0
TUBE
50
N
Current Mode
44
Yes
Yes
15
700
530
Yes
6.3
Yes
Yes
No
No
Yes
Price N/A
More Details
Obsolete
Pb
A
H
P
SOT-223-4 / TO-261-4D
1
260
REEL
4000
N
Current Mode
100
Yes
Yes
15
700
530
Yes
6.3
Yes
Yes
No
No
Yes
Price N/A
More Details
Obsolete
Pb
A
H
P
SOT-223-4 / TO-261-4D
1
260
REEL
4000
N
Current Mode
136
Yes
Yes
15
700
530
Yes
6.3
Yes
Yes
No
No
Yes
Price N/A
More Details
Obsolete
Pb
A
H
P
SOT-223-4 / TO-261-4D
1
260
REEL
4000
N
Current Mode
44
Yes
Yes
15
700
530
Yes
6.3
Yes
Yes
No
No
Yes
Price N/A
More Details
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