方案
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Offline Regulators | NCP1077
概览
NCP1076 / NCP1077 产品集成了固定频率电流模式控制器和 700 V MOSFET。NCP1076/7 采用 PDIP-7 或 SOT-223 封装，提供了高水平的集成，包括软启动、频率抖动、短路保护、跳过周期、最大峰值电流设定点、斜坡补偿以及动态自供电（无需辅助绕组）。与其他单片方案不同，NCP1076/7 具有无噪音特性：在正常负载运行期间，在某个可用频率进行开关的时候（65，100，130 kHz）。当输出功率需求消失时，该集成电路将自动进入频率折回模式，在轻负载下提供卓越能效。当功率需求进一步降低时，它进入跳过模式，将待机功耗降低到无负载条件。保护功能包括：检测过载或短路事件的计时器、带自动恢复的过电压保护，以及交流输入线路电压检测。 为了提高待机性能，连接辅助绕组会停止 DSS 运行，有助于将高电平线路的输入功耗降至 50 mW 以下。
应用
- Auxiliary Supply
- Isolated Standby Power Supply
终端产品
- White Goods
- E-Meters
- Industrial
特性
- Integrated 700 V MOSFET with RDS(on) of 4 Ω
- Current-Mode Fixed Frequency Operation (65/100/130 kHz)
- Peak Current: NCP1076 = 650mA / NCP1077 = 800 mA
- Skip-Cycle Operation at Low Peak Current
- Dynamic Self-Supply (DSS)
- Auto-Recovery Output Short Circuit Protection with Timer-Based Detection
- Frequency Foldback Operation
- 300A No Load Power Consumption
- Frequency Jittering (including during frequency foldback mode)
- AC Input Voltage Line Detection
产品列表
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产品:
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产品系列:
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可订购器件:
6
产品
NCP1077P065G
Obsolete
Pb
A
H
P
PDIP-7
NA
0
TUBE
50
N
Current Mode
65
Yes
Yes
4.7
700
800
Yes
8
6.3
Yes
No
No
No
Price N/A
More Details
NCP1077P100G
Lifetime
Pb
A
H
P
PDIP-7
NA
0
TUBE
50
N
Current Mode
100
Yes
Yes
4.7
700
800
Yes
8
6.3
Yes
No
No
No
$0.8026
More Details
NCP1077P130G
Obsolete
Pb
A
H
P
PDIP-7
NA
0
TUBE
50
N
Current Mode
130
Yes
Yes
4.7
700
800
Yes
8
6.3
Yes
No
No
No
Price N/A
More Details
NCP1077STAT3G
Active
Pb
A
H
P
SOT-223-4 / TO-261-4D
1
260
REEL
4000
Y
Current Mode
65
Yes
Yes
4.7
700
800
Yes
8
6.3
Yes
No
No
No
$0.6711
More Details
NCP1077STBT3G
Active
Pb
A
H
P
SOT-223-4 / TO-261-4D
1
260
REEL
4000
Y
Current Mode
100
Yes
Yes
4.7
700
800
Yes
8
6.3
Yes
No
No
No
$0.6711
More Details
NCP1077STCT3G
Active
Pb
A
H
P
SOT-223-4 / TO-261-4D
1
260
REEL
4000
Y
Current Mode
130
Yes
Yes
4.7
700
800
Yes
8
6.3
Yes
No
No
No
$0.6711
More Details
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