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UC3842B/UC3843B中文资料HIGH PERFORMANCE CURRENT MODE CONTROLLERS数据手册UTC规格书
UC3842B/UC3843B规格书详情
描述 Description
The UTC UC3842B/3843B are specifically designed for off-line and dc-to-dc converter applications offering the designer a cost-effective solution with minimal external components. The UC3842B has UVLO thresholds 16V (on) and 10V(off), ideally suited for off-line converters. The UC3843B is tailored for lower voltage applications having UVLO thresholds of 8.4V(on) and 7.6V(off).
特性 Features
Trimmed oscillator for precise frequency control
Oscillator frequency guaranteed at 250kHz
Current mode operation to 500kHz
Automatic feed forward compensation
Latching PWM for cycle-by-cycle current limiting
Internally trimmed reference with undervoltage lockout
High current totem pole output
Undervoltage lockout with hysteresis
Low startup and operating current
技术参数
- 制造商编号
：UC3842B/UC3843B
- 生产厂家
：UTC
- Vcc(Max)
：30V
- Pd
：1250/702mW
- Ic(Io)
：1A
- package
：DIP-8SOP-8
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
ON |
11+ |
SOP |
8000 |
全新原装,绝对正品现货供应 |
询价 | ||
TI |
25+ |
TQ263 |
3378 |
绝对原装公司现货供应!价格优势 |
询价 | ||
ON |
23+ |
NA |
8021 |
专业电子元器件供应链正迈科技特价代理特价，原装元器件供应，支持开发样品 |
询价 | ||
ST/意法 |
23+ |
SOP8 |
50000 |
全新原装正品现货,支持订货 |
询价 | ||
ON |
23+ |
SMD |
2800 |
绝对全新原装!现货!特价!请放心订购! |
询价 | ||
ST(意法) |
23+ |
NA |
20094 |
正纳10年以上分销经验原装进口正品做服务做口碑有支持 |
询价 | ||
ON |
23+ |
SOP |
8650 |
受权代理!全新原装现货特价热卖! |
询价 | ||
ON |
2022+ |
SOP8 |
7600 |
原厂原装,假一罚十 |
询价 | ||
ON |
2021+ |
SOP8 |
7600 |
原装现货，欢迎询价 |
询价 | ||
24+ |
SOP-8 |
202 |
询价 |
