ML4805CS中文资料PDF规格书
ML4805CS规格书详情
GENERAL DESCRIPTION
The ML4805 is a controller for power factor corrected, switched mode power supplies. Similar to the ML4801, the ML4805 may be used for voltage mode operation. Key features of this combined PFC and PWM controller are low start-up and operating currents. Power Factor Correction (PFC) allows the use of smaller, lower cost bulk capacitors, reduces power line loading and stress on the switching FETs, and results in a power supply that fully complies with IEC1000-2-3 specifications. The ML4805 includes circuits for the implementation of a leading edge, average current “boost” type power factor correction and a trailing edge pulse width modulator.
The PFC frequency of the ML4805 is automatically set at half that of the PWM frequency generated by the internal oscillator. This technique allows the user to design with smaller output components while maintaining the optimum operating frequency for the PFC. An over voltage comparator shuts down the PFC section in the event of a sudden decrease in load. The PFC section also includes peak current limiting and input voltage brownout protection.
FEATURES
■ Internally synchronized PFC and PWM in one IC
■ Low start-up current (200µA typ.)
■ Low operating current (5.5mA typ.)
■ Low total harmonic distortion
■ Reduces ripple current in the storage capacitor
between the PFC and PWM sections
■ Average current continuous boost leading edge PFC
■ High efficiency trailing edge PWM optimized for
voltage mode operation
■ Current fed gain modulator for improved noise immunity
■ Brown-out control, overvoltage protection, UVLO, and soft start
产品属性
- 型号:
ML4805CS
- 功能描述:
功率因数校正 IC SOIC-WIDE-18
- RoHS:
否
- 制造商:
Fairchild Semiconductor
- 开关频率:
300 KHz
- 最大工作温度:
+ 125 C
- 安装风格:
SMD/SMT
- 封装/箱体:
SOIC-8
- 封装:
Reel
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
FAIRCHILD/仙童 |
22+ |
DIP |
354000 |
询价 | |||
MICROLINEAR |
23+ |
DIP |
11923 |
询价 | |||
ML |
2020+ |
DIP-16 |
96 |
百分百原装正品 真实公司现货库存 本公司只做原装 可 |
询价 | ||
ML |
22+ |
DIP-16 |
4650 |
询价 | |||
原厂 |
DIP |
8650 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
ML |
20+/21+ |
SOP |
4350 |
全新原装进口价格优惠 |
询价 | ||
PSC |
23+ |
TSSOP20 |
18000 |
询价 | |||
MICRO LINEAR |
2022 |
DIP |
1245 |
询价 | |||
FSC |
DIP |
903 |
正品原装--自家现货-实单可谈 |
询价 | |||
MICROLINEAR |
2022 |
DIP |
5280 |
原厂原装正品,价格超越代理 |
询价 |