ncp1010，ncp1011，
NCP1012, NCP1013,
ncp1012，ncp1013，
NCP1014
芯片
Self−Supplied Monolithic
self−supplied monolithic
Switcher for Low Standby−
switcher低standby−
Power Offline SMPS
电力smps离线
The NCP101X series integrates a fixed−frequency current−mode
A系列的ncp101x integrates fixed−frequency current−mode
controller and a 700 V MOSFET. Housed in a PDIP−7,
控制器和一个700 V的MOSFET。在一个housed pdip−7，
PDIP−7 Gull Wing, or SOT−223 package, the NCP101X offers
pdip−7鸥翼，或sot−223包，ncp101x受害者
everything needed to build a rugged and low−cost power supply,
一切都需要建立一rugged和low−cost供电；
including soft−start, frequency jittering, short−circuit protection,
包括soft−start，频率抖动，short−circuit保护；
skip−cycle, a maximum peak current setpoint and a Dynamic
skip−cycle A的最大峰值电流，和一个动态setpoint
Self−Supply (no need for an auxiliary winding).
self−supply（不需要一个辅助绕组）。
Unlike other monolithic solutions, the NCP101X is quiet by nature:
unlike monolithic其他解决方案，ncp101x冰安静的城市自然保护区：
during nominal load operation, the part switches at one of the available
在标称负载的开关操作的，一方可报
frequencies (65 − 100 − 130 kHz). When the current setpoint falls
频率（65 100−−130千赫）。当电流setpoint瀑布
below a given value, e.g. the output power demand diminishes, the IC
下面的一个给定的值，如需diminishes输出功率的电路
automatically enters the so−called skip−cycle mode and provides
自动enters《so−called skip−cycle模式和提供
excellent efficiency at light loads. Because this occurs at typically 1/4
轻负载效率要高。因为这要出现typically 1 / 4
of the maximum peak value, no acoustic noise takes place. As a result,
最高峰值声噪声值，不需要的地方。作为一个结果，
standby power is reduced to the minimum without acoustic noise
备用电源的冰减少的最小无噪声
generation.
一代。
Short−circuit detection takes place when the feedback signal fades
short−circuit检测需要的地方，当反馈信号消失
away, e.g. in true short−circuit conditions or in broken Optocoupler
例如，在威胁中，short−circuit条件或在破碎的光耦合器
cases. External disabling is easily done either simply by pulling the
用例。外部disabling冰或者简单易做的拉市。
feedback pin down or latching it to ground through an inexpensive
反馈信息或latching引脚的下两个地面通过inexpensive
SCR for complete latched−off. Finally soft−start and frequency
完整的latched−off SCR。终于soft−start和频
jittering further ease the designer task to quickly develop low−cost and
进一步放松抖动的两个任务的设计和开发low−cost quickly
robust offline power supplies.
离线鲁棒电力供应。
For improved standby performance, the connection of an auxiliary
为了提高性能的备用，个连接。
winding stops the DSS operation and helps to consume less than
卷。《决策支持系统的操作和helps消费低于2
100 mW at high line. In this mode, a built−in latched overvoltage
100兆瓦的高压线。在这一模式中，built−in latched overvoltage
protection prevents from lethal voltage runaways in case the
从保护防止电压runaways致死的案例。
Optocoupler would brake. These devices are available in economical
光电耦合器将刹车。这些器件是可行的，在经济
8−pin dual−in−line and 4−pin SOT−223 packages.
8−pin dual−in−line和4−pin sot−223包。
Features
的特征。
• Built−in 700 V MOSFET with Typical RDSon of 11
•built−in 700 V典型Rdson MOSFET（11。
and 22
和22
• Large Creepage Distance Between High−Voltage Pins
•大high−voltage引脚之间的爬电距离
• Current−Mode Fixed Frequency Operation:
•current−mode固定频率操作：
65 kHz – 100 kHz − 130 kHz
65千赫至100千赫−130千赫
• Skip−Cycle Operation at Low Peak Currents Only:
•skip−cycle操作低峰值电流的只读：
No Acoustic Noise!
无噪声！
• Dynamic Self−Supply, No Need for an Auxiliary
•动态self−supply，没有需要的。
Winding
绕组
• Internal 1.0 ms Soft−Start
•内部soft−start 1.0毫秒
• Latched Overvoltage Protection with Auxiliary
•latched overvoltage保护用。
Winding Operation
绕线操作
• Frequency Jittering for Better EMI Signature
•频抖动更好的EMI签名
• Auto−Recovery Internal Output Short−Circuit
•auto−recovery内燃机的输出short−circuit
Protection
保护
• Below 100 mW Standby Power if Auxiliary Winding
•低于100兆瓦的备用电源，如果辅助绕组
is Used
用冰
• Internal Temperature Shutdown
•内部温度Shutdown
• Direct Optocoupler Connection
•光耦直接连接
• SPICE Models Available for TRANsient Analysis
•可用SPICE模型的瞬态分析
• Pb−Free Packages are Available*
•pb−free包是可用的
Typical Applications
典型的应用
• Low Power AC/DC Adapters for Chargers
•低功率AC / DC为adapters充电器
• Auxiliary Power Supplies (USB, Appliances,
•用电（USB，电器用品，
TVs, etc.)
电视，等。）
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蔡晓玲: 手机 15013430878
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