UC2845AN中文资料PDF规格书
厂商型号 |
UC2845AN |
参数属性 | UC2845AN 封装/外壳为8-DIP(0.300",7.62mm);包装为卷带(TR)剪切带(CT)Digi-Reel® 得捷定制卷带;类别为集成电路(IC) > PMIC - 稳压器 - DC DC 开关式控制器;产品描述:IC REG CTRLR MULT TOPOLOGY 8DIP |
功能描述 | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER |
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 | 2024-5-5 23:00:00 |
UC2845AN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 (
产品属性
- 产品编号:
UC2845AN
- 制造商:
Texas Instruments
- 类别:
集成电路(IC) > PMIC - 稳压器 - DC DC 开关式控制器
- 包装:
卷带(TR)剪切带(CT)Digi-Reel® 得捷定制卷带
- 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:
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):
48%
- 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:
通孔
- 封装/外壳:
8-DIP(0.300",7.62mm)
- 供应商器件封装:
8-PDIP
- 描述:
IC REG CTRLR MULT TOPOLOGY 8DIP
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI(德州仪器) |
23+ |
PDIP-8 |
5098 |
百分百原装正品,可原型号开票 |
询价 | ||
TI |
2016+ |
PDIP8 |
3000 |
主营TI,绝对原装,假一赔十,可开17%增值税发票! |
询价 | ||
TI |
22 |
DIP |
39890 |
3月31原装,微信报价 |
询价 | ||
TI |
2020+ |
PDIP-8 |
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 |
21+ |
DIP-8 |
35200 |
一级代理/放心采购 |
询价 | ||
TI/德州仪器 |
22+ |
DIP-8 |
100000 |
代理渠道/只做原装/可含税 |
询价 | ||
TI |
23+ |
DIP8 |
20000 |
原厂原装正品现货 |
询价 | ||
TI(德州仪器) |
23+ |
PDIP8 |
6000 |
询价 | |||
TI/德州仪器 |
23+ |
8355 |
只做原装现货/实单可谈/支持含税拆样 |
询价 | |||
TI/德州仪器 |
24+ |
DIP |
990000 |
明嘉莱只做原装正品现货 |
询价 |