UC3845B中文资料PDF规格书
厂商型号 |
UC3845B |
参数属性 | UC3845B 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) > AC DC 转换器,离线开关;产品描述:SOP-8 AC-DC CONTROLLERS \u0026 REGULA |
功能描述 | High Performance Current Mode Controllers |
文件大小 |
399.29 Kbytes |
页面数量 |
19 页 |
生产厂商 | ON Semiconductor |
企业简称 |
ONSEMI【安森美半导体】 |
中文名称 | 安森美半导体公司官网 |
原厂标识 | |
数据手册 | |
更新时间 | 2024-5-22 14:27:00 |
UC3845B规格书详情
The UC3844B, UC3845B series are high performance fixed frequency current mode controllers. They are specifically designed for Off−Line and dc−dc converter applications offering the designer a cost−effective solution with minimal external components. These integrated circuits feature an oscillator, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.
Features
• Trimmed Oscillator for Precise Frequency Control
• Oscillator Frequency Guaranteed at 250 kHz
• Current Mode Operation to 500 kHz Output Switching Frequency
• Output Deadtime Adjustable from 50 to 70
• 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
• Pb−Free Packages are Available
产品属性
- 产品编号:
UC3845B
- 制造商:
UTD Semiconductor
- 类别:
集成电路(IC) > AC DC 转换器,离线开关
- 包装:
卷带(TR)
- 输出隔离:
非隔离
- 内部开关:
是
- 拓扑:
反激,升压
- 电压 - 供电 (Vcc/Vdd):
7.6V ~ 30V
- 占空比:
48%
- 频率 - 开关:
50kHz,52kHz
- 故障保护:
限流,UVLO
- 控制特性:
频率控制,软启动
- 工作温度:
0°C ~ 70°C(TA)
- 封装/外壳:
8-SOIC(0.154",3.90mm 宽)
- 供应商器件封装:
8-SOP
- 安装类型:
表面贴装型
- 描述:
SOP-8 AC-DC CONTROLLERS \u0026 REGULA
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
MOT |
23+ |
DIP |
3000 |
原装正品假一罚百!可开增票! |
询价 | ||
ST/意法 |
9947 |
DIP-8 |
100 |
原装现货低价销售 |
询价 | ||
PROMAX |
23+ |
DIP |
4500 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
ST/意法 |
22+ |
DIP-8 |
50000 |
只做原装假一罚十,欢迎咨询 |
询价 | ||
ON/安森美 |
2023+ |
SOIC-8 |
6893 |
专注全新正品,优势现货供应 |
询价 | ||
ST |
22 |
SOP8 |
25000 |
3月31原装,微信报价 |
询价 | ||
UMW |
23+ |
NA |
419 |
现货!就到京北通宇商城 |
询价 | ||
ST |
23+ |
DIP8 |
8650 |
受权代理!全新原装现货特价热卖! |
询价 | ||
UMW |
24+25+/26+27+ |
SOP-8.贴片 |
143788 |
一一有问必回一特殊渠道一有长期订货一备货HK仓库 |
询价 | ||
umw |
新批次 |
SOP8 |
4326 |
询价 |
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