UC3943中文资料HIGH PERFORMANCE CURRENT MODE CONTROLLERS数据手册UTC规格书
| 厂商型号 |
UC3943 |
| 参数属性 | UC3943 封装/外壳为8-SOIC（0.154"，3.90mm 宽）；包装为卷带（TR）；类别为集成电路（IC）的电压基准；产品描述：IC VREF SHUNT ADJ 0.39% 8SOIC |
| 功能描述 | HIGH PERFORMANCE CURRENT MODE CONTROLLERS |
| 封装外壳 | 8-SOIC（0.154"，3.90mm 宽） |
| 制造商 | UTC Unisonic Technologies |
| 中文名称 | 友顺 友顺科技股份有限公司 |
| 数据手册 | |
| 更新时间 | 2025-9-26 14:46:00 |
| 人工找货 | UC3943价格和库存，欢迎联系客服免费人工找货 |
UC3943规格书详情
描述 Description
The UTC UC3943 is specifically designed for off-line anddc-to-dc converter applications offering the designer acost-effective solution with minimal external components.The UTC UC3943 has UVLO thresholds 8.4V (on) and7.6V(off), ideally suited for off-line converters.
特性 Features
With burstmode for lower standby power With greenmode for higher light load efficiency Oscillator frequency guaranteed at 250kHz 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
：UC3943
- 生产厂家
：UTC
- Vcc(MAX)(V)
：30
- Vcc(ON)(TYP)(V)
：8.4
- Vcc(OFF)(TYP)(V)
：7.6
- Freq.(TYP)(KHz)
：-
- Freq.(MXA)(KHz)
：250
- Duty Cycle%
：96
- Start-up current(mA)
：0.25
- Operatingcurrent(mA)
：12
- BVDSS (MIN)(V)
：-
- RDS(on)(MAX)(Ω)
：-
- Package
：SOP-8
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
TI |
24+ |
SOP8 |
90000 |
一级代理商进口原装现货、价格合理 |
询价 | ||
TI |
22+ |
8PDIP |
9000 |
原厂渠道,现货配单 |
询价 | ||
TI |
23+ |
PDIP |
5000 |
全新原装,支持实单,非诚勿扰 |
询价 | ||
TI |
2016+ |
SOP8 |
2933 |
只做原装,假一罚十,公司可开17%增值税发票! |
询价 | ||
TI/德州仪器 |
22+ |
PDIP |
11190 |
原装正品 |
询价 | ||
TI |
20+ |
8-DIP |
65790 |
原装优势主营型号-可开原型号增税票 |
询价 | ||
TEXAS |
18+ |
PDIP |
7247 |
全新原装现货,可出样品,可开增值税发票 |
询价 | ||
TI/BB |
20+ |
SOP8 |
2960 |
诚信交易大量库存现货 |
询价 | ||
UC |
25+ |
SOP8 |
4500 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
TI |
10+ |
DIP8 |
40 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 |
