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ML4812IQ中文资料
ML4812IQ数据手册规格书PDF详情
GENERAL DESCRIPTION
The ML4812 is designed to optimally facilitate a peak current control boost type power factor correction system. Special care has been taken in the design of the ML4812 to increase system noise immunity. The circuit includes a precision reference, gain modulator, error amplifier, over voltage protection, ramp compensation, as well as a high current output. In addition, start-up is simplified by an under-voltage lockout circuit with 6V hysteresis.
In a typical application, the ML4812 functions as a current mode regulator. The current which is necessary to terminate the cycle is a product of the sinusoidal line voltage times the output of the error amplifier which is regulating the output DC voltage. Ramp compensation is programmable with an external resistor, to provide stable operation when the duty cycle exceeds 50.
FEATURES
■ Precision buffered 5V reference (±0.5)
■ Current-input gain modulator reduces external
components and improves noise immunity
■ Programmable ramp compensation circuit
■ 1A peak current totem-pole output drive
■ Overvoltage comparator helps prevent output
voltage “runaway”
■ Wide common mode range in current sense
comparators for better noise immunity
■ Large oscillator amplitude for better noise immunity
ML4812IQ产品属性
- 类型
描述
- 型号
ML4812IQ
- 功能描述
功率因数校正 IC PFC Controller
- 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 |
23+ |
NA |
19960 |
只做进口原装,终端工厂免费送样 |
|||
Fairchild |
23+ |
20-PLCC (9x9) |
33500 |
原装正品现货库存QQ:2987726803 |
|||
FAIRCHILD/仙童 |
2447 |
PLCC |
100500 |
一级代理专营品牌!原装正品,优势现货,长期排单到货 |
|||
Fairchild/ON |
22+ |
20PLCC |
9000 |
原厂渠道,现货配单 |
|||
Fairchild/ON |
21+ |
20PLCC |
610880 |
本公司只售原装 支持实单 |
|||
Fairchild/ON |
23+ |
20PLCC |
9000 |
原装正品,支持实单 |
|||
Fairchild |
24+ |
模数转换器 |
28500 |
授权代理直销,原厂原装现货,假一罚十,特价销售 |
|||
24+ |
PLCC-20(9x9) |
5000 |
全新、原装 |
||||
ML |
24+ |
PLCC-20 |
205 |
||||
ML |
23+ |
PLCC20 |
7000 |
绝对全新原装!100%保质量特价!请放心订购! |
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ML4812IQ 芯片相关型号
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Fairchild Semiconductor 飞兆/仙童半导体公司
Fairchild Semiconductor是一家曾经存在的半导体制造商,总部位于美国加州圣克拉拉。Fairchild Semiconductor成立于1957年,是最早期的半导体公司之一,专注于生产各种半导体器件,包括晶体管、集成电路、功率模块等产品。 Fairchild Semiconductor在半导体行业具有悠久的历史和丰富的经验,曾经是全球领先的半导体公司之一,其产品被广泛应用于消费电子、通信、工业、汽车等领域。Fairchild Semiconductor以其创新的技术和高性能的产品而闻名,拥有众多专利和技术成果。 2016年,Fairchild Semiconductor被ON