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NCP1240 是一款新型固定频率电流模式控制器,具有动态自供电功能。此功能可激活内部启动电流源使其在启动期间、瞬变、锁存、待机等期间为控制器供电,大大简化了辅助电源和 VCC 电容器的设计。此器件包含一个特殊的高压检测器,会检测从交流线路上拔下的应用,然后触发 X2 放电电流。该高电压结构还支持欠压检测。它具有基于计时器的故障检测可确保过载检测,还具有可调节补偿,有助于保持最大功率,而无论输入电压如何。由于频率折回,该控制器在轻型负载条件下具有绝佳的能效,同时还能达到极低的待机功耗。内部频率抖动、斜坡补偿和多功能锁存输入使得此控制器成为强大电源设计的绝佳备选。专门的关断模式可通过将整个器件置于“睡眠”达到极低的无负载输入功耗,因此最大程度降低控制电路的功耗。NCP1240 采取双级过流保护,有别于其他有源 X2 放电和高压启动的固定频率反激控制器。对于某些应用(如电源有限),控制器在检测到第一级过载时必须保持调节。这就允许瞬态峰值功率高于最大连续输出功率。此产品符合 IEC60950 标准。请参阅下面符合性报告部分中的测试报告和认证。
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Reference Price
NCP1240AD065R2G
Pb
A
H
P
SOIC-7
1
260
REEL
2500
N
Flyback
Current Mode
65
Yes
9.3
Yes
Yes
Yes
28
500 / 800
Price N/A
More Details
NCP1240AD100R2G
Active
Pb
A
H
P
SOIC-7
1
260
REEL
2500
Y
Flyback
Current Mode
100
Yes
9.3
Yes
Yes
Yes
28
500 / 800
$0.5227
More Details
NCP1240ED065R2G
Pb
A
H
P
SOIC-7
1
260
REEL
2500
N
Flyback
Current Mode
65
Yes
9.3
Yes
Yes
Yes
28
500 / 800
Price N/A
More Details
NCP1240FD065R2G
Pb
A
H
P
SOIC-7
1
260
REEL
2500
N
Flyback
Current Mode
65
Yes
9.3
Yes
Yes
Yes
28
500 / 800
Price N/A
More Details
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可靠性数据
Die Related Summary Data
Device: NCP1240AD065R2G
Equivalent to wafer fab process: VHVIC
产品技术
产品技术
等效器件小时
平均故障间隔时间/平均无故障时间(按小时计算)
FITS
VHVIC
2
2577173853
More Details
Re-calculate Data
Data is based on the following assumptions.
Note: The temperature and confidence level may be adjusted to your requirements.
Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)