參數(shù)資料
型號(hào): ASM8P18S42
廠(chǎng)商: Alliance Semiconductor Corporation
英文描述: Voltage Mode PWM Controller with EMI Reduction
中文描述: 電壓模式PWM控制器與EMI還原
文件頁(yè)數(shù): 2/11頁(yè)
文件大小: 1618K
代理商: ASM8P18S42
ASM8P18S42 / ASM8P18S42ER
ASM8P1843 / ASM8P18S43ER
ASM8P18S44ER / ASM8P18S45ER
June 2005
rev 0.6
Voltage Mode
PWM Controller with EMI Reduction 2 of 11
Notice: The information in this document is subject to change without notice.
Logic Block Diagram
Pin Diagram
8-Pin MicroSO, P-DIP and SOIC
Pin Description
Pin #
Pin Name
Function
1
COMP
FB
Input of the PWM Comparator and output of the error amplifier
2
Feedback, inverting input of the error amplifier
3
I
SNS
Current sense comparator input
4
FSEL
External capacitor selects PWM frequency
5
GND
Ground
6
OUT
SS modulated PWM output
7
V
DD
Supply voltage
5V output for ASM8PI8S42 and ASM8PI843 parts. External resistor ”
R
D
to GND sets the modulation spread for the parts with ER suffix.
8
V
REF
/
R
D
I
SNS
GND
PWM
SS MOD
Control
OL + UC
SENSE
UVLO
THERMAL
SHUTDOWN
V
BG
DRIVER
Error
Amp
COMP
FB
OUT
V
REF
V
DD
F
SEL
1
2
3
4
8
7
6
5
ASM8P18S42
COMP
FB
I
SNS
F
SEL
GND
OUT
V
DD
V
REF
ASM8P1843
COMP
1
2
3
4
8
7
6
5
FB
I
SNS
F
SEL
GND
OUT
V
DD
R
D
ASM8P18S42ER
ASM8P18S43ER
ASM8P18S44ER
ASM8P18S45ER
相關(guān)PDF資料
PDF描述
ASM8P18S42ER Voltage Mode PWM Controller with EMI Reduction
ASM8P18S42ERF-08-SX Voltage Mode PWM Controller with EMI Reduction
ASM8P18S43ER Voltage Mode PWM Controller with EMI Reduction
ASM8P18S44ER Voltage Mode PWM Controller with EMI Reduction
ASM8P18S45ER Voltage Mode PWM Controller with EMI Reduction
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ASM8P18S42ER 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:Voltage Mode PWM Controller with EMI Reduction
ASM8P18S42ERF-08-MX 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:Voltage Mode PWM Controller with EMI Reduction
ASM8P18S42ERF-08-PX 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:Voltage Mode PWM Controller with EMI Reduction
ASM8P18S42ERF-08-SX 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:Voltage Mode PWM Controller with EMI Reduction
ASM8P18S42F-08-MX 制造商:ALSC 制造商全稱(chēng):Alliance Semiconductor Corporation 功能描述:Voltage Mode PWM Controller with EMI Reduction