AMC3843B中文资料ETC数据手册PDF规格书
AMC3843B规格书详情
[ADD Microtech Corp.]
DESCRIPTION
The AMC3842B/43B are fixed frequency current-mode PWM controllers specially designed for OFF-Line switching power supply and DC-to-DC converters with a minimum number of external components. These devices feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and high current totem pole output which is suitable for driving MOSFETs. The under voltage lock-out (U.V.L.O.) is designed to operated with 200µA typ. start-up current, allowing an efficient bootstrap supply voltage design. The U.V.L.O. thresholds for the AMC3842B are 16V (on) and 10V (off) which are ideal for off-line applications. The corresponding typical threshold for the AMC3843B are 8.4V (on) and 7.6V (off). The AMC3842B/43B can operated within 100 duty cycle.
FEATURES
■ Low Start-Up current ( typ. 200µA)
■ Optimized for Off-Line and DC-to-DC Converters
■ Maximum Duty Cycle
■ U.V.L.O. with Hysteresis
□ Operating Frequency Up to 500KHz
□ Internal Trimmed Bandgap Reference
□ High Current Totem Pole Output
□ Error Amplifier With Low Output Resistance
□ Available in 8-Pin Plastic DIP and Surface Mount 14-Pin S.O.I.C.
□ Identical pin assignment to earlier UC384X series.
APPLICATIONS
■ Off-line flyback or forward converters.
■ DC-to-DC buck or boost converter.
■ Monitor Power Supply
产品属性
- 型号:
AMC3843B
- 功能描述:
CURRENT MODE PWM CONTROLLER
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
AMC |
24+ |
NA/ |
3870 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
ADD |
22+ |
SO-8 |
100000 |
代理渠道/只做原装/可含税 |
询价 | ||
ADD |
25+ |
SOP-8 |
850 |
原装正品,欢迎来电咨询! |
询价 | ||
AMC |
1922+ |
SOP8 |
6852 |
只做原装正品现货!或订货假一赔十! |
询价 | ||
AMC |
23+ |
SOP8 |
7300 |
专注配单,只做原装进口现货 |
询价 | ||
AMC |
14+ |
SOP8 |
2500 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
AMC |
25+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
AMC |
21+ |
SOP8 |
7500 |
只做原装所有货源可以追溯原厂 |
询价 | ||
AMC |
0550+ |
SOP8 |
3870 |
原装现货 |
询价 | ||
AMC |
21+ |
SOP8 |
2500 |
原装现货假一赔十 |
询价 |