參數(shù)資料
型號: CS51227
廠商: ON SEMICONDUCTOR
英文描述: Enhanced Voltage Mode PWM Controller(加強型電壓模式脈寬調制控制器)
中文描述: 增強的電壓模式PWM控制器(加強型電壓模式脈寬調制控制器)
文件頁數(shù): 1/8頁
文件大?。?/td> 66K
代理商: CS51227
Semiconductor Components Industries, LLC, 2001
February, 2001 – Rev. 6
1
Publication Order Number:
CS51227/D
CS51227
Enhanced Voltage Mode
PWM Controller
The CS51227 is a fixed frequency, single output PWM controller
using feed forward voltage mode control. Feed forward control
provides superior line regulation and line transient response. This
PWM controller has been optimized for high frequency primary side
control operation. It has undervoltage lockout with 4.7 V start up
voltage and 75
μ
A start up current. One external capacitor can
program the switching frequency up to 1.0 MHz. The protection
features include pulse–by–pulse current limit with leading edge
blanking and thermal shutdown. The CS51227 is available in 8 lead
SO narrow surface mount package.
Features
1.0 MHz Frequency Capability
4.7 V Start–Up Voltage
Fixed Frequency Voltage Mode Operation with Feed Forward
Undervoltage Lockout
75
μ
A Start–Up Current
Thermal Shutdown
1.0 A Sink/Source Gate Drive
Pulse–By–Pulse Current Limit with Leading Edge Blanking
50 ns GATE Rise and Fall Time (1.0 nF Load)
Maximum Duty Cycle Over 85%
Programmable Volt–Second Clamp
http://onsemi.com
PIN CONNECTIONS AND
MARKING DIAGRAM
SO–8
D SUFFIX
CASE 751
1
8
V
FB
CT
1
5
A
8
COMP
FF
GND
I
SENSE
V
CC
GATE
A
WL, L
YY, Y
WW, W = Work Week
= Assembly Location
= Wafer Lot
= Year
Device
Package
Shipping
ORDERING INFORMATION
CS51227ED8
SO–8
95 Units/Rail
CS51227EDR8
SO–8
2500 Tape & Reel
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相關代理商/技術參數(shù)
參數(shù)描述
CS51227/D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Enhanced Voltage Mode PWM Controller
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