- 您現在的位置：買賣IC網 > PDF目錄358635 > 3843CMTR-E1 (BCD Semiconductor Manufacturing Limited) CURRENT MODE PWM CONTROLLER PDF資料下載
參數資料
| 型號： | 3843CMTR-E1 |
| 廠商： | BCD Semiconductor Manufacturing Limited |
| 英文描述： | CURRENT MODE PWM CONTROLLER |
| 中文描述： | 電流模式PWM控制器 |
| 文件頁數： | 1/13頁 |
| 文件大小： | 188K |
| 代理商： | 3843CMTR-E1 |
CURRENT MODE PWM CONTROLLER AP384XC
Data Sheet
1
Sep. 2006 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
General Description
The AP3842C/3C/4C/5C are high performance fixed
frequency current-mode PWM controller series.
These integrated circuits are optimized for off-line and
DC-DC converter applications with minimum external
components. They feature under-voltage lockout
(UVLO) circuit with low start-up current, trimmed
oscillator for precise duty cycle control, current sense
comparator providing maximum current limiting and a
totem pole output stage for increasing output current.
In addition, these ICs also feature accurate protection
against over-temperature, over-current and maximal
output power.
The AP3842C and AP3844C have UVLO thresholds
of 16V(on) and 10V(off); The corresponding thresh-
olds for AP3843C and AP3845C are 8.4 V(on) and
7.6V(off).
The AP3842C and AP3843C can operate approaching
100% duty cycle; AP3844C and AP3845C can operate
from zero to 50% duty cycle.
These ICs are available in SOIC-8 and DIP-8 pack-
ages.
Features
·
·
Low Line Regulation : 4mV
Low Load Regulation : 4mV
·
High Stability of Reference Voltage over a Full
Temperature Range: 0.2mV/
o
C
·
Operating Frequency up to 500KHz
·
High PWM Frequency Stability over a Full Tem-
perature Range: 2.5%
·
High PWM Frequency Stability under a Full Sup-
ply Voltage Range: 0.2%
·
Accurate Over-temperature Protection with Hys-
teresis
·
UVLO with Hysteresis
Low Start-up Current: 50
μ
A
Robust V
REF
Line/Load Regulation
Applications
·
·
·
·
·
·
Off-line Converter
DC-DC Converter
Voltage Adapter
CRT Monitor Power Supply
Desktop Power Supply
DVD/STB Power Supply
SOIC-8
DIP-8
Figure 1. Package Types of AP3842C/3C/4C/5C
相關PDF資料 |
PDF描述 |
|---|---|
| 3850 | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 386M-E1 | LOW VOLTAGE AUDIO POWER AMPLIFIER |
| 3886GROUP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 38920000230 | Repeater |
| 38B5 | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 3843CP | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:CURRENT MODE PWM CONTROLLER |
| 3843CP-E1 | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:CURRENT MODE PWM CONTROLLER |
| 3843GM | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:GREEN MODE PWM CONTROLLER |
| 3843GM-E1 | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:GREEN MODE PWM CONTROLLER |
| 3843GMTR | 制造商:BCDSEMI 制造商全稱:BCD Semiconductor Manufacturing Limited 功能描述:GREEN MODE PWM CONTROLLER |
發布緊急采購，3分鐘左右您將得到回復。