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Power Factor Controllers | NCP1616
概览
NCP1616 是一款高电压 PFC 控制器，可基于创新的电流控制频率折回 (CCFF) 模式驱动 PFC 升压级。在此模式下，当电感器电流超过编程值时，该电路以临界导通模式 (CrM) 运行。当电流低于此预设水平时，NCP1616 会将频率线性下降，在正弦零交叉处降至最小 26kHz。CCFF 可在标称负载和轻型负载下最大程度提高能效。尤其待机损耗降至最低。创新电路即使在开关频率降低时也能实现接近一致的功率因数。 集成的高电压启动电路无需外部启动组件，在正常运行期间的功耗非常少。NCP1616 采用 SOIC-9 封装，具有坚固紧凑的 PFC 级所需的功能，且外部组件很少。
应用
- Off-line power supplies
- Lighting Ballast
- LED Lighting Drivers and Power Supplies
终端产品
- All-In-One Computers
- High Powered Adapters
- Flat TV / LED-TV / LCD-TV / Plasma
特性
- High Voltage Start-Up Circuit
- Critical conduction mode with current controlled frequency foldback
- Integrated Input Filter Capacitor (X2) Discharge Circuitry
- Dynamic Response Enhancer
- Soft Overvoltage Protection
- -500 mA/+800 mA Drive Capability
- AC Line Brownout Detection
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NCP1616A1DR2G
Loading...
Active
Pb
A
H
P
SOIC-9 NB
1
260
REEL
2500
Y
CRM
Variable
Current Mode
Step-Up
Variable
28
500 / 800
9
Yes
Yes
Yes
$0.596
More Details
NCP1616A2DR2G
Loading...
Active
Pb
A
H
P
SOIC-9 NB
1
260
REEL
2500
Y
CRM
Variable
Current Mode
Step-Up
Variable
28
500 / 800
9
Yes
Yes
Yes
$0.596
More Details
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