UC2843BD1中文资料PDF规格书
UC2843BD1规格书详情
High Performance Current Mode Controllers
The UC3842B, UC3843B 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 a trimmed oscillator for precise duty cycle control, 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, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8–pin dual–in–line and surface mount (SO–8) plastic package as well as the 14–pin plastic surface mount (SO–14). The SO–14 package has separate power and ground pins for the totem pole output stage.
The UCX842B has UVLO thresholds of 16 V (on) and 10 V (off), ideally suited for off–line converters. The UCX843B is tailored for lower voltage applications having UVLO thresholds of 8.5 V (on) and 7.6 V (off).
• Trimmed Oscillator for Precise Frequency Control
• Oscillator Frequency Guaranteed at 250 kHz
• Current Mode Operation to 500 kHz
• 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
产品属性
- 产品编号:
UC2843BD1
- 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):
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:
-25°C ~ 85°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 FLYBACK 8SOIC
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ST/意法半导体 |
21+ |
SO-8 |
8860 |
只做原装,质量保证 |
询价 | ||
ON(安森美) |
23+ |
N/A |
589610 |
新到现货 原厂一手货源 价格秒杀代理! |
询价 | ||
ON/安森美 |
2021/2022+ |
NA |
8000 |
原厂原装现货订货价格优势终端BOM表可配单提供样品 |
询价 | ||
ST-意法半导体 |
24+25+/26+27+ |
SOP-8.贴片 |
9328 |
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 | ||
ST(意法半导体) |
23+ |
SOP-8 |
977 |
特价优势库存质量保证稳定供货 |
询价 | ||
ST |
1604+ |
SOP-8 |
2158 |
低价支持实单,可送样品! |
询价 | ||
ON |
SOP8 |
893993 |
集团化配单-有更多数量-免费送样-原包装正品现货-正规 |
询价 | |||
ST/意法半导体 |
21+ |
SO-8 |
6000 |
原装正品,假一赔十! |
询价 | ||
ST(意法半导体) |
1932+ |
SO-8 |
2789 |
向鸿优势仓库库存-绝对原装正品-不做假货! |
询价 | ||
ST/意法半导体 |
21+ |
SO-8 |
10000 |
原装公司现货 |
询价 |