NCP1072:High Voltage Switching Regulator for Offline SMPS
The NCP1072 through NCP1055 are monolithic high voltage regulators that enable end product equipment to be compliant with low standby power requirements. This device series combines the required converter functions allowing a simple and economical power system solution for office automation, consumer, and industrial products. These devices are designed to operate directly from a rectified AC line source. In flyback converter applications they are capable of providing an output power that ranges from 6.0 W to 40 W with a fixed AC input of 100 V, 115 V, or 230 V, and 3.0 W to 20 W with a variable AC input that ranges from 85 V to 265 V. This device series features an active startup regulator circuit that eliminates the need for an auxiliary bias winding on the converter transformer, fault logic with a programmable timer for converter overload protection, unique gated oscillator configuration for extremely fast loop response with double pulse suppression, power switch current limiting, input undervoltage lockout with hysteresis, thermal shutdown, and auto restart fault detection. These devices are available in an economical 8-pin dual-in-line package.
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
- Auto−Recovery Overvoltage Protection with Auxiliary Winding Operation
- Frequency Jittering for Better EMI Signature, Including Frequency Foldback Mode
- No Load Input Consumption < 50 mW
- Frequency Foldback to Improve Efficiency at Light Load
- Internal Temperature Shutdown
- These are Pb−Free Devices
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应用
- Auxiliary Supply
- Isolated Standby Power Supply
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 |
| NCP1072P065G |
Active |
|
High Voltage Switching Regulator for Offline SMPS |
PDIP-8 |
626A-01 |
|
Tube |
50 |
$0.37 |
| NCP1072P100G |
Active |
|
High Voltage Switching Regulator for Offline SMPS |
PDIP-8 |
626A-01 |
|
Tube |
50 |
$0.37 |
| NCP1072STAT3G |
Active |
|
High Voltage Switching Regulator for Offline SMPS |
SOT-223-4 / TO-261-4 |
318E-04 |
1 |
Tape and Reel |
4000 |
$0.36 |
| NCP1072STBT3G |
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
