NCP1075: High Voltage Switching Regulator for Offline SMPS
The NCP1072 / NCP1075 products integrate a fixed frequency current mode controller with a 700 V MOSFET. Available in a PDIP-7 or SOT-223 package, the NCP1072/5 offer a high level of integration, including soft-start, frequency-jittering, short-circuit protection, skip-cycle, a maximum peak current set point, ramp compensation, and a Dynamic Self-Supply (eliminating the need for an auxiliary winding). Unlike other monolithic solutions, the NCP1072/5 is quiet by nature: during nominal load operation, the part switches at one of the available frequencies (65, 100 or 130 kHz). When the output power demand diminishes, the IC automatically enters frequency foldback mode and provides excellent efficiency at light loads. When the power demand reduces further, it enters into a skip mode to reduce the standby consumption down to a no load condition. Protection features include: a timer to detect an overload or a short-circuit event, Overvoltage Protection with auto-recovery and AC input line voltage detection. For improved standby performance, the connection of an auxiliary winding stops the DSS operation and helps to reduce input power consumption below 50 mW at high line.
技术特性
- Built−in 700 V MOSFET with RDS(on)of 11
- Large Creepage Distance Between High−voltage Pins
- Current−Mode Fixed Frequency Operation – 65 / 100 /
130 kHz (NCP1072 130 kHz on demand only)
- Peak Current: NCP1072 with 250 mA and NCP1075 with 450 mA
- Fixed Ramp Compensation
- Skip−Cycle Operation at Low Peak Currents Only: No Acoustic Noise!
- Dynamic Self−Supply: No Need for an Auxiliary Winding
- Internal 1 ms Soft−Start
- Auto−Recovery Output Short Circuit Protection with Timer−Based Detection
应用
- Auxiliary Supply
- Isolated Standby Power Supply
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终端产品
- White Goods
- Smart Meter / E-Meter
封装图 PACKAGE DIMENSIONS
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评估板信息
订购信息 Ordering Information
| 产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价） |
| 类型 |
外形 |
类型 |
数量 |
| NCP1075P065G |
Active |
|
High Voltage Switching Regulator for Offline SMPS |
PDIP-8 |
626A-01 |
|
Tube |
50 |
$0.37 |
| NCP1075P100G |
Active |
|
High Voltage Switching Regulator for Offline SMPS |
PDIP-8 |
626A-01 |
|
Tube |
50 |
$0.37 |
| NCP1075P130G |
Active |
|
High Voltage Switching Regulator for Offline SMPS |
PDIP-8 |
626A-01 |
|
Tube |
50 |
$0.37 |
| NCP1075STAT3G |
Active |
|
High Voltage Switching Regulator for Offline SMPS |
SOT-223-4 / TO-261-4 |
318E-04 |
1 |
Tape and Reel |
4000 |
$0.36 |
| NCP1075STBT3G |
Active |
|
High Voltage Switching Regulator for Offline SMPS |
SOT-223-4 / TO-261-4 |
318E-04 |
1 |
Tape and Reel |
4000 |
$0.36 |
| NCP1075STCT3G |
Active |
|
High Voltage Switching Regulator for Offline SMPS |
SOT-223-4 / TO-261-4 |
318E-04 |
1 |
Tape and Reel |
4000 |
$0.36 |
数据资料DataSheet下载
