UC3844D1中文资料仙童半导体数据手册PDF规格书
UC3844D1规格书详情
描述 Description
The UC3842/UC3843/UC3844/UC3845 are fixed frequencycurrent-mode PWM controller. They are specially designed for Off-Line and DC to DC converter applications with minimum external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator and a high current totempole output for driving a Power MOSFET. The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off). The UC3843 and UC3845 are 8.5V(on) and 7.9V (off). The UC3842 and UC3843 can operate within 100 duty cycle. The UC3844 and UC3845 can operate with 50 duty cycle.
特性 Features
• Low Start up Current
• Maximum Duty Clamp
• UVLO With Hysteresis
• Operating Frequency up to 500KHz
产品属性
- 型号：
UC3844D1
- 功能描述：
电流型 PWM 控制器 Current Mode PWM Control IC
- RoHS：
否
- 制造商：
Texas Instruments
- 开关频率：
27 KHz
- 工作电源电压：
6 V to 15 V
- 工作电源电流：
1.5 mA
- 输出端数量：
1
- 最大工作温度：
+ 105 C
- 安装风格：
SMD/SMT
- 封装/箱体：
TSSOP-14
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
TI(德州仪器) |
24+ |
SOP8 |
7350 |
现货供应,当天可交货!免费送样,原厂技术支持!!! |
询价 | ||
TI |
24+ |
SOP8 |
80000 |
只做自己库存 全新原装进口正品假一赔百 可开13%增 |
询价 | ||
UC/TI |
25+ |
SOP-8 |
54658 |
百分百原装现货 实单必成 |
询价 | ||
UC/TI |
22+ |
SOP-8 |
100000 |
代理渠道/只做原装/可含税 |
询价 | ||
Texas |
25+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
TI |
25+ |
SOP8 |
4500 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
TI |
24+ |
SOP8 |
26 |
询价 | |||
TI&BB |
17+ |
SOIC8 |
6200 |
100%原装正品现货 |
询价 | ||
TI/德州仪器 |
24+ |
SOIC8 |
9600 |
原装现货,优势供应,支持实单! |
询价 | ||
TexasInstruments |
18+ |
ICREGCTRLRPWMCM8SOIC |
6580 |
公司原装现货/欢迎来电咨询! |
询价 |
