UC3843中文资料友台半导体数据手册PDF规格书
厂商型号 |
UC3843 |
参数属性 | UC3843 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) > DC-DC 开关控制器;产品描述:IC REG CTRLR 8SOIC |
功能描述 | Low Start-Up and Operating Current |
文件大小 |
874.34 Kbytes |
页面数量 |
7 页 |
生产厂商 | UMW Rightway Semiconductor Co., Ltd. |
企业简称 |
UMW【友台半导体】 |
中文名称 | 广东友台半导体有限公司(简称UMW®)官网 |
原厂标识 | |
数据手册 | |
更新时间 | 2024-9-26 3:35:00 |
UC3843规格书详情
Description
The 3842/43/44/45 are fixed frequency current mode PWM controller. They are specially designed for OFF−Line and DC to
DC converter applications with a minimal external components. Internally implemented circuits include 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 ideally suited for driving a power MOSFET. Protection circuitry includes built undervoltage lockout and current
limiting. The 3842 and 3844 have UVLO thresholds of 16 V (on) and 10 V (off). The corresponding thresholds for the 3843/
45 are 8.4V (on) and 7.6V (off). The 3842) and 3843 can operate within 100 duty cycle. The 3844 and 3845 can operate within 50 duty
cycle.
The 384X has Start-Up Current 0.5mA (typ).
Features
Low Start-Up and Operating Current
High Current Totem Pole Output
Undervoltage Lockout With Hysteresis
Operating Frequency Up To 500KHz
产品属性
- 产品编号:
UC3843AD
- 制造商:
onsemi
- 类别:
集成电路(IC) > DC-DC 开关控制器
- 包装:
卷带(TR)
- 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):
96%
- 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:
表面贴装型
- 封装/外壳:
8-SOIC(0.154",3.90mm 宽)
- 供应商器件封装:
8-SOIC
- 描述:
IC REG CTRLR 8SOIC
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ST |
22 |
DIP8 |
25000 |
3月31原装,微信报价 |
询价 | ||
ON |
23+ |
DIP |
20000 |
全新原装假一赔十 |
询价 | ||
ON |
2018+ |
SOP8 |
6000 |
全新原装正品现货,假一赔佰 |
询价 | ||
ON/安森美 |
22+ |
SOP-8 |
100000 |
代理渠道/只做原装/可含税 |
询价 | ||
ON |
11+ |
SOP8 |
2000 |
原装现货价格有优势量多可发货 |
询价 | ||
ON |
20+ |
DIP |
26580 |
全新原装长期特价销售 |
询价 | ||
DP |
1926+ |
SOP-8 |
6852 |
只做原装正品现货!或订货假一赔十! |
询价 | ||
ON |
2018+ |
SO-8 |
30000 |
一级代理进口原装现货假一赔十 |
询价 | ||
DLZ |
22+ |
SOP-8 |
354000 |
询价 | |||
ST |
99+ |
DIP8 |
47 |
询价 |