UC2844AN集成电路(IC)DC-DC开关控制器规格书PDF中文资料
厂商型号 |
UC2844AN |
参数属性 | UC2844AN 封装/外壳为8-DIP(0.300",7.62mm);包装为管件;类别为集成电路(IC) > DC-DC 开关控制器;产品描述:IC REG CTRLR PWM CM 8DIP |
功能描述 | 升压,升压/降压 |
文件大小 |
174.33 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 | 2024-5-29 22:58:00 |
UC2844AN规格书详情
1 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 (< 0.5mA)
DOUBLE PULSE SUPPRESSION
2 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 < 50 is obtained by
the UC3844A and UC3845A by the addition of an
internal toggle flip flop which blanks the output off
every other clock cycle.
UC2844AN属于集成电路(IC) > DC-DC 开关控制器。意法半导体(ST)集团制造生产的UC2844ANDC-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:
UC2844AN
- 制造商:
STMicroelectronics
- 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):
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:
通孔
- 封装/外壳:
8-DIP(0.300",7.62mm)
- 供应商器件封装:
8-迷你型 DIP
- 描述:
IC REG CTRLR PWM CM 8DIP
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI |
2016+ |
DIP8 |
6222 |
只做原装,假一罚十,公司可开17%增值税发票! |
询价 | ||
TI/德州仪器 |
21+ |
DIP-8 |
6000 |
原装正品,假一赔十! |
询价 | ||
TI |
23+ |
DIP8 |
20000 |
全新原装假一赔十 |
询价 | ||
TI |
21+ |
NA |
30 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
询价 | ||
TI |
00+01+ |
DIP8 |
987 |
全新原装进口自己库存优势 |
询价 | ||
TI |
22+ |
PDIP (P) |
6000 |
原厂原装,价格优势!13246658303 |
询价 | ||
TI |
2017+ |
DIP8 |
6528 |
只做原装正品假一赔十! |
询价 | ||
TI |
23+ |
DIP8 |
20000 |
原厂原装正品现货 |
询价 | ||
TI/德州仪器 |
DIP8 |
22+ |
10317 |
专营厂家量大可定货 |
询价 | ||
TI(德州仪器) |
23+ |
DIP8 |
6000 |
诚信服务,绝对原装原盘 |
询价 |