UC2843A集成电路(IC)DC-DC开关控制器规格书PDF中文资料
厂商型号 |
UC2843A |
参数属性 | UC2843A 封装/外壳为14-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 BUCK/BOOST 14SOIC |
功能描述 | 升压,降压 |
文件大小 |
227.95 Kbytes |
页面数量 |
8 页 |
生产厂商 | Microsemi Corporation |
企业简称 |
Microsemi【美高森美】 |
中文名称 | 美高森美公司官网 |
原厂标识 | |
数据手册 | |
更新时间 | 2024-6-2 22:59:00 |
UC2843A规格书详情
DESCRIPTION
The UC184xA family of control ICs provides all the necessary features to implement off-line fixed-frequency, current-mode switching power supplies with a minimum of external components. The current mode architecture demonstrates improved load regulation, pulse-by-pulse current limiting and inherent protection of the power supply output switch. The IC includes: A bandgap reference trimmed to ±1 accuracy, an error amplifier, a current sense comparator with internal clamp to 1V, a high current totem pole output stage for fast switching of power MOSFETs, and an externally programmable oscillator to set frequency and maximum duty cycle. The undervoltage lock-out is designed to operate with 250µA typ. start-up current, allowing an efficient bootstrap supply voltage design.
KEY FEATURES
■ LOW START-UP CURRENT. (0.5mA max.)
■ TRIMMED OSCILLATOR DISCHARGE CURRENT. (See Product Highlight)
■ OPTIMIZED FOR OFF-LINE AND DC-TO-DC CONVERTERS.
■ AUTOMATIC FEED FORWARD COMPENSATION.
■ PULSE-BY-PULSE CURRENT LIMITING.
■ ENHANCED LOAD RESPONSE CHARACTERISTICS.
■ UNDER-VOLTAGE LOCKOUT WITH HYSTERESIS.
■ DOUBLE PULSE SUPPRESSION.
■ HIGH-CURRENT TOTEM POLE OUTPUT.
■ INTERNALLY TRIMMED BANDGAP REFERENCE.
■ 500KHz OPERATION.
■ LOW RO ERROR AMPLIFIER.
APPLICATIONS
■ ECONOMICAL OFF-LINE FLYBACK OR FORWARD CONVERTERS.
■ DC-DC BUCK OR BOOST CONVERTERS.
■ LOW COST DC MOTOR CONTROL.
UC2843A属于集成电路(IC) > DC-DC 开关控制器。美高森美公司制造生产的UC2843ADC-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:
UC2843AD
- 制造商:
Microsemi Corporation
- 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,降压
- 输出配置:
正,可提供隔离
- 拓扑:
升压,降压,反激,正激
- 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:
-40°C ~ 85°C(TA)
- 安装类型:
表面贴装型
- 封装/外壳:
14-SOIC(0.154",3.90mm 宽)
- 供应商器件封装:
14-SOIC
- 描述:
IC REG CTRLR BUCK/BOOST 14SOIC
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
MSC |
23+ |
NA/ |
6634 |
原装现货,当天可交货,原型号开票 |
询价 | ||
LMI |
20+ |
SOP-8 |
2960 |
诚信交易大量库存现货 |
询价 | ||
MSC |
18+ |
SOP-8 |
9860 |
全新原装现货/假一罚百! |
询价 | ||
MSC |
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 | |||
UC |
23+ |
SOP8 |
4500 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
TI |
PDIP|8 |
70230 |
16余年资质 绝对原盒原盘 更多数量 |
询价 | |||
ST |
23+ |
DIP-8 |
16900 |
正规渠道,只有原装! |
询价 | ||
ON |
23+ |
DIP8 |
7800 |
全新原装正品,现货销售 |
询价 | ||
SOP-8P |
3000 |
现货 |
询价 | ||||
ST/意法 |
21+ |
SOP |
15000 |
现货/全新原装进口 |
询价 |
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