UC2844B集成电路(IC)的PMIC-稳压器-DCDC开关式控制器规格书PDF中文资料

| 厂商型号 |
UC2844B |
| 参数属性 | UC2844B 封装/外壳为8-SOIC(0.154",3.90mm 宽);包装为管件;类别为集成电路(IC)的PMIC-稳压器-DCDC开关式控制器;产品描述:IC REG CTRLR BST FLYBK ISO 8-SO |
| 功能描述 | Low Start-Up and Operating Current |
| 封装外壳 | 8-SOIC(0.154",3.90mm 宽) |
| 文件大小 |
832.12 Kbytes |
| 页面数量 |
9 页 |
| 生产厂商 | UMW |
| 中文名称 | 友台半导体 |
| 网址 | |
| 数据手册 | |
| 更新时间 | 2025-12-13 18:00:00 |
| 人工找货 | UC2844B价格和库存,欢迎联系客服免费人工找货 |
UC2844B规格书详情
描述 Description
The 2842/43/44/45 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 2842 and 2844 have UVLO thresholds of 16V (on) and 10V (off). The corresponding thresholds for the
2843/ 45 are 8.4V (on) and 7.6V (off). The 2842 and 2843 can operate within 100 duty cycle.
The 2844 and 2845 can operate within 50 duty cycle.
The 284X has Start-Up Current 0.5mA (typ).
特性 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:
UC2844BD1
- 制造商:
STMicroelectronics
- 类别:
集成电路(IC) > PMIC - 稳压器 - DC DC 开关式控制器
- 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:
-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 BST FLYBK ISO 8-SO
| 供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
|---|---|---|---|---|---|---|---|
ON Sem |
25+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
ON/安森美 |
21+ |
DIP |
30000 |
优势供应 实单必成 可开13点增值税 |
询价 | ||
ONS |
23+ |
UC2844BD1 |
13528 |
振宏微原装正品,假一罚百 |
询价 | ||
ST |
2025+ |
SOP8 |
3645 |
全新原厂原装产品、公司现货销售 |
询价 | ||
ON |
25+23+ |
DIP-8 |
16813 |
绝对原装正品全新进口深圳现货 |
询价 | ||
ST |
23+ |
SO-8 |
7000 |
绝对全新原装!100%保质量特价!请放心订购! |
询价 | ||
三年内 |
1983 |
只做原装正品 |
询价 | ||||
TI |
24+ |
DIP8 |
90000 |
一级代理商进口原装现货、价格合理 |
询价 | ||
ON/安森美 |
23+ |
NA |
2860 |
原装正品代理渠道价格优势 |
询价 | ||
ST |
23+ |
DIP8 |
16900 |
正规渠道,只有原装! |
询价 |

