UC3844N集成电路(IC)DC-DC开关控制器规格书PDF中文资料
厂商型号 |
UC3844N |
参数属性 | UC3844N 封装/外壳为8-DIP(0.300",7.62mm);包装为管件;类别为集成电路(IC) > DC-DC 开关控制器;产品描述:IC REG CTRLR PWM CM 8-DIP |
功能描述 | 升压,升压/降压 |
文件大小 |
376.23 Kbytes |
页面数量 |
14 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 | 2024-4-29 10:02:00 |
UC3844N规格书详情
The UC3844, UC3845 series are high performance fixed frequency current mode controllers. They are specifically designed for Off−Line and DC−to−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.
Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, a latch for single pulse metering, and a flip−flop which blanks the output off every other oscillator cycle, allowing output dead times to be programmed for 50 to 70.
These devices are available in an 8−pin dual−in−line plastic package as well as the 14−pin plastic surface mount (SOIC−14). The SOIC−14 package has separate power and ground pins for the totem pole output stage.
The UCX844 has UVLO thresholds of 16 V (on) and 10 V (off), ideally suited for off−line converters. The UCX845 is tailored for lower voltage applications having UVLO thresholds of 8.5 V (on) and 7.6 V (off).
Features
• 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
• Input Undervoltage Lockout with Hysteresis
• Low Startup and Operating Current
• Direct Interface with ON Semiconductor SENSEFET™ Products
• Pb−Free Packages are Available
UC3844N属于集成电路(IC) > DC-DC 开关控制器。安森美半导体公司制造生产的UC3844NDC-DC 开关控制器PMIC(电源管理集成电路)DC 到 DC 开关式控制器是用于高效率电路的稳压 IC,其配置为生成高于(突升或步升)或低于(突降或步降)输入电源的输出电源电压。其他拓扑结构可能包括:降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。
产品属性
- 产品编号:
UC3844N
- 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):
10V ~ 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 PWM CM 8-DIP
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI/德州仪器 |
22+ |
PDIP-8 |
4500 |
原装进口 实单低价 |
询价 | ||
MOTOROLA/摩托罗拉 |
DIP |
6631 |
优势库存 |
询价 | |||
TI/德州仪器 |
22+ |
PDIP8 |
9990 |
正规渠道,只有原装! |
询价 | ||
FSC |
0642+ |
DIP |
3000 |
智亦芯科技只做现货 支持实单 |
询价 | ||
MOTOROLA/摩托罗拉 |
22+ |
DIP-8 |
8880 |
原装认准芯泽盛世! |
询价 | ||
TI |
22+ |
8-DIP |
2100 |
询价 | |||
TI |
23+ |
DIP |
8000 |
原装正品 |
询价 | ||
TI/德州仪器 |
23+ |
8355 |
只做原装现货/实单可谈/支持含税拆样 |
询价 | |||
TI |
2017+ |
DIP-8 |
45852 |
深圳香港代理原装现货库存(美国-日本-台湾)可开正规增 |
询价 | ||
TI |
23+ |
DIP |
10000 |
原装正品,支持实单 |
询价 |