參數(shù)資料
型號： UC3844L-D08-T
廠商： UNISONIC TECHNOLOGIES CO LTD
元件分類： 穩(wěn)壓器
英文描述： HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
中文描述： 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, DIP8
封裝： LEAD FREE, DIP-8
文件頁數(shù)： 1/7頁
文件大小： 307K
代理商： UC3844L-D08-T
UNISONIC TECHNOLOGIES CO, LTD
UC3844/45
LINEAR INTEGRATED CIRCUIT
www.unisonic.com.tw
Copyright 2005 Unisonic Technologies Co., Ltd
QW-R103-010,C
1 of 7
HIGH PERFORMANCE
CURRENT MODE PWM
CONT ROLLERS
DES CRIPT ION
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.
FEAT URES
* 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
*Pb-free plating product number:
UC3844L/UC3845L
ORDERING INFORMAT ION
Order Number
Normal
Lead Free Plating
UC3844L-D08-T
UC3844L-S08-R
UC3844L-S08-T
UC3845L-D08-T
UC3845L-S08-R
UC3845L-S08-T
Package
Packing
UC3844-D08-T
UC3844-S08-R
UC3844-S08-T
UC3845-D08-T
UC3845-S08-R
UC3845-S08-T
DIP-8
SOP-8
SOP-8
DIP-8
SOP-8
SOP-8
Tube
Tape Reel
Tube
Tube
Tape Reel
Tube
相關(guān)PDF資料
PDF描述
UC3844L-S08-R HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
UC3845A High Performance Current Mode PWM Controller(高性能電流模式PWM控制器)
UC3845B High Performance Current Mode PWM Controller(高性能電流模式PWM控制器)
UC3843B High Performance Current Mode PWM Controller(高性能電流模式PWM控制器)
UC621XX CMOS IC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UC3844L-S08-R 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
UC3844L-S08-T 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
UC3844N 功能描述:電流型 PWM 控制器 Current Mode RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
UC3844NG 功能描述:電流型 PWM 控制器 52kHz 1A Current PWM w/48% Duty Cycle Max RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
UC3844NG4 功能描述:電流型 PWM 控制器 Current-Mode PWM Controller RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
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