NCP1256 包括构建几瓦到几十瓦成本高效开关模式电源所需的一切功能。该零件采用微型 TSOP-6 封装,供电范围高达 30 V,具有带抖动的 65 kHz 或 100 kHz 开关电路,在峰值电流模式控制下运行。当辅助侧功率开始降低时,该控制器将其开关频率自动折回至最低 26 kHz 的水平。当功率进一步下降时,该零部件进入跳过周期,同时对峰值电流进行限制。 NCP1256 带有若干保护功能,如基于计时器的短路保护、无损耗 OPP 和易于调节的欠电压 (BO) 引脚。提供了两个输入,以可行方式锁存关断该零件,例如使用 OVP 和 OTP 事件。有若干选项用来选择锁存或自动恢复。
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CAD Models
Compliance
Package Type
Case Outline
MSL Type
MSL Temp (°C)
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Container Qty.
ON Target
Topology
Control Mode
fsw Typ (kHz)
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UVLO (V)
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Reference Price
NCP1256ASN100T1G
Active
Pb
A
H
P
TSOP-6
3
260
REEL
3000
N
Flyback
Current Mode
100
Yes
8.3
Yes
Yes
Yes
35
500 / 500
$0.2133
More Details
NCP1256ASN65T1G
Active
Pb
A
H
P
TSOP-6
3
260
REEL
3000
N
Flyback
Current Mode
65
Yes
8.3
Yes
Yes
Yes
35
500 / 500
$0.2133
More Details
Obsolete
Pb
A
H
P
TSOP-6
3
260
REEL
3000
N
Flyback
Current Mode
100
Yes
8.3
Yes
No
Yes
35
500 / 500
Price N/A
More Details
NCP1256BSN65T1G
Active
Pb
A
H
P
TSOP-6
3
260
REEL
3000
N
Flyback
Current Mode
65
Yes
8.3
Yes
No
Yes
35
500 / 500
$0.2133
More Details
NCP1256ESN65T1G
Active
Pb
A
H
P
TSOP-6
3
260
REEL
3000
N
Flyback
Current Mode
65
Yes
8.3
Yes
Yes
Yes
35
500 / 500
$0.2347
More Details
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可靠性数据
Die Related Summary Data
Device: NCP1256ASN100T1G
Equivalent to wafer fab process: ONC25
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
ONC25
1
2712519294
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.)