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參數(shù)資料
| 型號： | UC3845-S08-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, PDSO8 |
| 封裝： | SOP-8 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大小： | 307K |
| 代理商： | UC3845-S08-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PDF資料 |
PDF描述 |
|---|---|
| UC3844L-D08-T | HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS |
| 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) |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UC3845T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER |
| UC3845TD | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER |
| UC3845TN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| UC3845W | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SMPS Controller |
| UC3846 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Current Mode PWM Controller |
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