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ML4824CP-1 PDF预览

ML4824CP-1

更新时间： 2024-01-02 20:12:19
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 稳压器开关式稳压器或控制器电源电路开关式控制器功率因数校正光电二极管
页数 文件大小 规格书
16页 152K
描述
Power Factor Correction and PWM Controller Combo

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中文翻译

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ML4824CP-1 技术参数

是否无铅：不含铅生命周期：Not Recommended
零件包装代码：DIP包装说明：PLASTIC, DIP-16
针数：16Reach Compliance Code：unknown
风险等级：5.17Is Samacsys：N
Base Number Matches：1

ML4824CP-1 数据手册

 浏览型号ML4824CP-1的Datasheet PDF文件第2页浏览型号ML4824CP-1的Datasheet PDF文件第3页浏览型号ML4824CP-1的Datasheet PDF文件第4页浏览型号ML4824CP-1的Datasheet PDF文件第5页浏览型号ML4824CP-1的Datasheet PDF文件第6页浏览型号ML4824CP-1的Datasheet PDF文件第7页 
December 2000  
ML4824  
Power Factor Correction and PWM Controller Combo  
GENERAL DESCRIPTION  
FEATURES  
The ML4824 is a controller for power factor corrected,  
switched mode power supplies. Power Factor Correction  
(PFC) allows the use of smaller, lower cost bulk capacitors,  
reduces power line loading and stress on the switching  
FETs, and results in a power supply that fully complies  
with IEC1000-2-3 specification. The ML4824 includes  
circuits for the implementation of a leading edge, average  
current, “boost” type power factor correction and a trailing  
edge, pulse width modulator (PWM).  
■ Internally synchronized PFC and PWM in one IC  
■ Low total harmonic distortion  
■ Reduces ripple current in the storage capacitor between  
the PFC and PWM sections  
■ Average current, continuous boost leading edge PFC  
■ Fast transconductance error amp for voltage loop  
The device is available in two versions; the ML4824-1  
(f  
= f ) and the ML4824-2 (f  
= 2 x f ).  
■ High efficiency trailing edge PWM can be configured  
PWM  
PFC  
PWM  
PFC  
Doubling the switching frequency of the PWM allows the  
user to design with smaller output components while  
maintaining the best operating frequency for the PFC. An  
over-voltage comparator shuts down the PFC section in the  
event of a sudden decrease in load. The PFC section also  
includes peak current limiting and input voltage brown-  
out protection. The PWM section can be operated in  
current or voltage mode at up to 250kHz and includes a  
duty cycle limit to prevent transformer saturation.  
for current mode or voltage mode operation  
■ Average line voltage compensation with brownout  
control  
■ PFC overvoltage comparator eliminates output  
“runaway” due to load removal  
■ Current fed gain modulator for improved noise immunity  
■ Overvoltage protection, UVLO, and soft start  
BLOCK DIAGRAM  
16  
1
13  
POWER FACTOR CORRECTOR  
V
CC  
IEAO  
VEAO  
V
CCZ  
OVP  
V
V
REF  
VEA  
FB  
13.5V  
7.5V  
REFERENCE  
+
IEA  
14  
3.5kΩ  
15  
–
+
–
2.7V  
–1V  
–
+
–
2.5V  
AC  
+
S
Q
I
2
4
3
+
–
GAIN  
V
R
S
Q
Q
RMS  
MODULATOR  
PFC OUT  
3.5kΩ  
PFC I  
LIMIT  
I
12  
SENSE  
R
Q
RAMP 1  
RAMP 2  
OSCILLATOR  
7
8
x 2  
(-2 VERSION ONLY)  
DUTY CYCLE  
LIMIT  
8V  
–
+
V
1.25V  
DC  
6
5
9
PWM OUT  
V
S
Q
Q
CC  
11  
–
+
V
OK  
IN  
V
–
50µA  
8V  
FB  
SS  
1V  
–
+
R
2.5V  
+
DC I  
LIMIT  
DC I  
LIMIT  
V
UVLO  
CCZ  
PULSE WIDTH MODULATOR  
REV. 1.01 12/7/2000  
1234567...16

中文翻译

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ML4824CP-1 替代型号

型号 品牌 替代类型 描述 数据表
ML4824IP2 FAIRCHILD

功能相似

 Power Factor Correction and PWM Controller Combo
ML4824IP-2 FAIRCHILD

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 Power Factor Correction and PWM Controller Combo

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ML4824CP-2 FAIRCHILD

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ML4824CP-2 MICRO-LINEAR

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ML4824CS1 ROCHESTER

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 		0.5 A POWER FACTOR CONTROLLER WITH POST REGULATOR, 250 kHz SWITCHING FREQ-MAX, PDSO16, SOI
ML4824CS1 FAIRCHILD

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ML4824CS-1 MICRO-LINEAR

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 		Power Factor Correction and PWM Controller Combo
ML4824CS-1 FAIRCHILD

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 		Power Factor Correction and PWM Controller Combo
ML4824CS1X FAIRCHILD

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 		CCM PFC + PWM Combination Controller , 16LD,SOIC,JEDEC MS013, .300" WIDE BODY, 10
ML4824CS2 FAIRCHILD

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