Datasheet 搜索 > UTC（友顺） > UC3844 数据手册 > UC3844 数据手册 1/7 页
￥ 0.808
UC3844 数据手册 - UTC（友顺）
制造商:
UTC（友顺）
封装:
DIP-8
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
导航目录
UC3844数据手册
Page:
of 7 Go
若手册格式错乱，请下载阅览PDF原文件
UNISONIC TECHNOLOGIES CO., LTD
UC3844/45 LINEAR INTEGRATED CIRCUIT
www.unisonic.com.tw 1 of 7
Copyright © 2011 Unisonic Technologies Co., Ltd QW-R103-010.D
HIGH PERFORMANCE
CURRENT MODE PWM
CONTROLLERS
DESCRIPTION
The UTC UC3844/3845 are high performance fixed frequency
current mode controllers that specifically designed for Off-Line and
DC to DC converter applications with minimal external parts count.
The differences between UC3844 and UC3845 are the maximum
duty cycle ranges and under-voltage lockout thresholds. The
UC3844 ideally suited to off-line applications with UVLO thresholds
of 16V
(ON)
and 10V
(OFF)
, and UC3845 has UVLO thresholds of
8.5V
(ON)
and 7.6V
(OFF)
for lower voltage applications.
FEATURES
* Operation output switching frequency up to 500 kHz
* Output deadtime adjustable from 50% to 70%
* Automatic feed forward compensation
* Latching PWM for cycle-by-cycle current limiting
* High current totem pole output
* Internally trimmed reference with under voltage lockout
* UVLO with hysteresis
* Low startup and operating current
ORDERING INFORMATION
Ordering Number
Lead Free Halogen Free
Package Packing
UC3844L-D08-T UC3844G-D08-T DIP-8 Tube
UC3844L-S08-R UC3844G-S08-R SOP-8 Tape Reel
UC3844L-S08-T UC3844G-S08-T SOP-8 Tube
UC3845L-D08-T UC3845G-D08-T DIP-8 Tube
UC3845L-S08-R UC3845G-S08-R SOP-8 Tape Reel
UC3845L-S08-T UC3845G-S08-T SOP-8 Tube
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册，每天更新 5,000 多个 PDF 文件
