UC3842D中文资料仙童半导体数据手册PDF规格书
UC3842D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:
UC3842D
- 制造商:
onsemi
- 类别:
集成电路(IC) > DC-DC 开关控制器
- 包装:
卷带(TR)
- 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):
10V ~ 30V
- 频率 - 开关:
最高 500kHz
- 占空比(最大):
97%
- 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:
表面贴装型
- 封装/外壳:
14-SOIC(0.209",5.30mm 宽)
- 供应商器件封装:
14-SOP
- 描述:
IC REG CTRLR PWM CM 14-SOIC
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI |
20+ |
8SOIC |
53650 |
TI原装主营-可开原型号增税票 |
询价 | ||
TI |
2016+ |
SOP8 |
8026 |
只做原装,假一罚十,公司可开17%增值税发票! |
询价 | ||
TI |
2020+ |
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 | ||
FAIRCHILD/仙童 |
24+ |
SOP-14 |
155549 |
明嘉莱只做原装正品现货 |
询价 | ||
Texas Instruments |
24+ |
SOIC-14 |
12000 |
原装正品现货询价有惊喜 |
询价 | ||
TI |
23+ |
SOP |
30000 |
九方航一站式全线配单,秉承只做原装 终端我们可以提供 |
询价 | ||
TI |
22+ |
SOP14 |
21055 |
原装正品,实单请联系 |
询价 | ||
UC |
93P3 |
SOP |
74 |
自己公司全新库存绝对有货 |
询价 | ||
TI |
23+ |
SOP-8 |
4500 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
TI |
23+ |
14-SOIC |
66800 |
进口原装现货假一罚十 |
询价 |
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