UC3844AN集成电路(IC)DC-DC开关控制器规格书PDF中文资料
厂商型号 |
UC3844AN |
参数属性 | UC3844AN 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-MINIDIP |
功能描述 | 升压,升压/降压 |
文件大小 |
167.48 Kbytes |
页面数量 |
16 页 |
生产厂商 | STMicroelectronics |
企业简称 |
STMICROELECTRONICS【意法半导体】 |
中文名称 | 意法半导体(ST)集团官网 |
原厂标识 | |
数据手册 | |
更新时间 | 2024-9-21 22:50:00 |
UC3844AN规格书详情
DESCRIPTION
The UC384xA family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under voltage lockout featuring start-up current less than 0.5mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control, and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the off-state.
Differences between members of this family are the under-voltage lockout thresholds and maximum duty cycle ranges. The UC3842A and UC3844A have UVLO thresholds of 16V (on) and 10V (off), ideally suited off-line applications The corresponding thresholds for the UC3843A and UC3845A are 8.5 V and 7.9V. The UC3842A and UC3843A can operate to duty cycles approaching 100. A range of the zero to
FEATURES
■ TRIMMED OSCILLATOR DISCHARGE CURRENT
■ CURRENT MODE OPERATION TO 500kHz 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 START-UP CURRENT (
UC3844AN属于集成电路(IC) > DC-DC 开关控制器。意法半导体(ST)集团制造生产的UC3844ANDC-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
更多- 产品编号:
UC3844AN
- 制造商:
STMicroelectronics
- 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-迷你型 DIP
- 描述:
IC REG CTRLR PWM CM 8-MINIDIP
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI |
23+ |
DIP8 |
20000 |
全新原装假一赔十 |
询价 | ||
TI |
2020+ |
8DIP |
8000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
TI/德州仪器 |
21+ |
DIP-8 |
10000 |
100%进口原装正品现货,公司原装现货众多欢迎加微信咨 |
询价 | ||
TI |
20+ |
8DIP |
53650 |
TI原装主营-可开原型号增税票 |
询价 | ||
TI/德州仪器 |
24+ |
PDIP |
860000 |
明嘉莱只做原装正品现货 |
询价 | ||
TI |
23+ |
SMD |
10000 |
原厂原装正品现货 |
询价 | ||
TI |
2016+ |
DIP8 |
5202 |
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) |
23+ |
DIP8 |
6000 |
诚信服务,绝对原装原盘 |
询价 | ||
TI/德州仪器 |
22+ |
DIP-8 |
6000 |
只做原装,假一赔十 |
询价 | ||
Texas Instruments |
2023+ |
8-DIP |
323 |
安罗世纪电子只做原装正品货 |
询价 |