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 19:36:00 |
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 |
---|---|---|---|---|---|---|---|
ST |
589220 |
16余年资质 绝对原盒原盘 更多数量 |
询价 | ||||
ST/意法 |
23+ |
DIP-8 |
9980 |
原装正品,支持实单 |
询价 | ||
ST/意法 |
22+ |
DIP-8 |
9800 |
只做原装正品假一赔十!正规渠道订货! |
询价 | ||
ST/意法 |
22+ |
DIP-8 |
354000 |
询价 | |||
ST/意法 |
23+ |
NA/ |
23250 |
原装现货,当天可交货,原型号开票 |
询价 | ||
ON |
23+ |
SOP8 |
1003 |
全新原装现货 |
询价 | ||
ST |
DIP-8 |
8852 |
一级代理 原装正品假一罚十 价格优势 实单带接受价 |
询价 | |||
23+ |
105 |
大批量供应优势库存热卖 |
询价 | ||||
ST/HECHDZ |
23+ |
SOP |
58000 |
全新原厂原装正品现货,可提供技术支持、样品免费! |
询价 | ||
ST |
2020+ |
DIP |
350000 |
100%进口原装正品公司现货库存 |
询价 |
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