Offline Regulators | NCP1077A
概览
NCP1077A 和 NCP1077B 产品集成了固定频率电流模式控制器和 700 V MOSFET。它采用非常常见的 PDIP−7 封装的两个不同引脚输出，提供了高度集成，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、斜坡补偿和动态自供电（无需辅助绕组）。与其他单片方案不同，NCP1077A 和 NCP1077B 具有无噪音特性：在正常负载运行期间，该零件在某个可用频率进行开关 (65 或 100 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。输入线路电压检测可防止低输入电压条件（欠电压）以及过高输入线路（交流线路过电压保护）下的严重失控。这也可以使得过功率保护能够补偿高输入电压条件下的所有内部延迟，优化最大输出电流能力。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。
- Auxiliary & Standby Power Supply
- Major Home Appliances power supplies
- Low to medium Power Chargers & Adapters
- White Goods
- E-Meters
- Industrial
- Consumer Equipment Power Supply
- Integrated 700 V MOSFET with RDS(on) of 4.7 Ω
- Current-Mode Fixed Frequency Operation (65 & 100 kHz) - 130 kHz for B version only
- Peak Current: NCP1076A/B = 650mA and NCP1077A/B = 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
- 300 µA No Load Power Consumption
- Frequency Jittering (including during frequency foldback mode)
- Adjustable Brown-out Protection and OVP
- Over Power Protection
- 2nd Level Current Protection
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Last Shipments
Pb
A
H
P
PDIP-7
NA
0
TUBE
50
N
Current Mode
65
Yes
Yes
4.8
700
800
Yes
9.2
6.5
Yes
Yes
Yes
No
Price N/A
More Details
NCP1077AAP100G
Active
Pb
A
H
P
PDIP-7
NA
0
TUBE
50
Y
Current Mode
100
Yes
Yes
4.8
700
800
Yes
9.2
6.5
Yes
Yes
Yes
No
$0.7982
More Details
Last Shipments
Pb
A
H
P
PDIP-7
NA
0
TUBE
50
N
Current Mode
65
Yes
Yes
4.8
700
800
Yes
9.2
6.5
Yes
Yes
Yes
No
Price N/A
More Details
Last Shipments
Pb
A
H
P
PDIP-7
NA
0
TUBE
50
N
Current Mode
100
Yes
Yes
4.8
700
800
Yes
9.2
6.5
Yes
Yes
Yes
No
Price N/A
More Details
Last Shipments
Pb
A
H
P
PDIP8 Less Pin 3
NA
0
TUBE
50
N
Current Mode
65
Yes
Yes
4.8
700
800
Yes
9.2
6.5
Yes
Yes
Yes
No
Price N/A
More Details
Last Shipments
Pb
A
H
P
PDIP8 Less Pin 3
NA
0
TUBE
50
N
Current Mode
100
Yes
Yes
4.8
700
800
Yes
9.2
6.5
Yes
Yes
Yes
No
Price N/A
More Details
Last Shipments
Pb
A
H
P
PDIP8 Less Pin 3
NA
0
TUBE
50
N
Current Mode
130
Yes
Yes
4.8
700
800
Yes
9.2
6.5
Yes
Yes
Yes
No
Price N/A
More Details
Last Shipments
Pb
A
H
P
PDIP8 Less Pin 3
NA
0
TUBE
50
N
Current Mode
65
Yes
Yes
4.8
700
800
Yes
9.2
6.5
Yes
Yes
Yes
No
Price N/A
More Details
NCP1077BBP100G
Active
Pb
A
H
P
PDIP8 Less Pin 3
NA
0
TUBE
50
Y
Current Mode
100
Yes
Yes
4.8
700
800
Yes
9.2
6.5
Yes
Yes
Yes
No
$0.7812
More Details
Last Shipments
Pb
A
H
P
PDIP8 Less Pin 3
NA
0
TUBE
50
N
Current Mode
130
Yes
Yes
4.8
700
800
Yes
9.2
6.5
Yes
Yes
Yes
No
Price N/A
More Details
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