UC3845N中文资料PDF规格书
UC3845N规格书详情
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.
Features
• Low Start up Current
• Maximum Duty Clamp
• UVLO With Hysteresis
• Operating Frequency up to 500KHz
产品属性
- 产品编号:
UC3845N
- 制造商:
onsemi
- 类别:
集成电路(IC) > DC-DC 开关控制器
- 包装:
管件
- 输出类型:
晶体管驱动器
- 功能:
升压,升压/降压
- 输出配置:
正,可提供隔离
- 拓扑:
反激,升压
- 输出阶段:
1
- 电压 - 供电 (Vcc/Vdd):
7.6V ~ 30V
- 频率 - 开关:
最高 500kHz
- 占空比(最大):
48%
- 同步整流器:
无
- 时钟同步:
无
- 控制特性:
频率控制
- 工作温度:
0°C ~ 70°C(TA)
- 安装类型:
通孔
- 封装/外壳:
8-DIP(0.300",7.62mm)
- 供应商器件封装:
8-PDIP
- 描述:
IC REG CTRLR BOOST/FLYBACK 8DIP
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI/德州仪器 |
2020+ |
DIP8 |
13000 |
原装现货,优势渠道订货假一赔十 |
询价 | ||
ON |
02+ |
DIP/8 |
50 |
原装现货海量库存欢迎咨询 |
询价 | ||
TI |
DIP |
1500 |
国内领先的集成电路专业配单!量大可发货!可开17%增值 |
询价 | |||
TI |
17+ |
NA |
9998 |
全新原装现货 |
询价 | ||
ON |
23+ |
DIP-8 |
20000 |
原厂原装正品现货 |
询价 | ||
TI |
2021+ |
TI |
6800 |
原厂原装,欢迎咨询 |
询价 | ||
TI |
全新年份 |
原厂封装 |
50000 |
性价比之王一站式配单,可靠、高效、价格好 |
询价 | ||
HGSEMI(华冠) |
23+ |
DIP-8 |
5000 |
PWM控制器,一级代理 |
询价 | ||
TI |
14 |
PDIP-8 |
6000 |
询价 | |||
TI |
2105+ |
DIP8 |
77 |
原装正品 |
询价 |