UC3845N集成电路(IC)的DC-DC开关控制器规格书PDF中文资料

| 厂商型号 |
UC3845N |
| 参数属性 | UC3845N 封装/外壳为8-DIP(0.300",7.62mm);包装为管件;类别为集成电路(IC)的DC-DC开关控制器;产品描述:IC REG CTRLR BOOST/FLYBACK 8DIP |
| 功能描述 | SMPS Controller |
| 封装外壳 | 8-DIP(0.300",7.62mm) |
| 文件大小 |
127.58 Kbytes |
| 页面数量 |
12 页 |
| 生产厂商 | Fairchild |
| 中文名称 | 仙童半导体 |
| 网址 | |
| 数据手册 | |
| 更新时间 | 2025-10-30 16:27:00 |
| 人工找货 | UC3845N价格和库存,欢迎联系客服免费人工找货 |
UC3845N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
- 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 |
|---|---|---|---|---|---|---|---|
ON |
04+ |
DIP-8 |
6000 |
绝对原装自己现货 |
询价 | ||
TI/德州仪器 |
2450+ |
DIP8 |
6540 |
只做原装正品现货!或订货假一赔十! |
询价 | ||
ON |
23+ |
DIP-8 |
65480 |
询价 | |||
TI/德州仪器 |
22+ |
PDIP8 |
12245 |
现货,原厂原装假一罚十! |
询价 | ||
TI |
21+ |
DIP-8 |
90000 |
全新原装鄙视假货 |
询价 | ||
25+ |
8 |
公司优势库存 热卖中!! |
询价 | ||||
TI |
24+ |
DIP |
30000 |
原装正品公司现货,假一赔十! |
询价 | ||
TI |
24+ |
DIP |
6000 |
全新原装深圳仓库现货有单必成 |
询价 | ||
TI |
25+ |
PDIP (P) |
6000 |
原厂原装,价格优势 |
询价 | ||
MOT |
25+ |
DIP |
18000 |
原厂直接发货进口原装 |
询价 |

