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SSC2005S 数据手册

更新时间:2019-08-24 17:04:12 大小:365K 上传用户:ssuge查看TA发布的资源 标签:ssc2005s 下载积分:2分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

资料介绍

一种PFC电路,LLC前级PFC电路,可做到300W以内。

部分文件列表

文件名 大小
SSC2005S_preliminary_specification.pdf 365K

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No auxiliary winding configuration and No Bypass Diode  
Control IC for Critical Conduction Mode PFC  
Preliminary  
SSC2005S  
Jan. 9, 2013  
General Description  
Package  
SOIC8  
The SSC2005S is controller ICs intended to implement a  
CRM (Critical Conduction Mode) PFC (Power Factor  
Correction) circuit.  
The IC achieves high performance PFC system with small  
size and low standby power because input voltage detection  
resistors and auxiliary winding are unnecessary  
Not to scale  
Features and Benefits  
Auxiliary Winding is Unnecessary by Inductor Current  
Detection  
Low Standby Power by disusing Input Voltage Detection  
Resistors  
Limitation of the Minimum Off Time Prevents the  
Frequency Rising  
Electrical Characteristics  
Maximum rating of VCC  
Maximum On time, tON(MAX)  
Minimum Off time, tON(MIN)  
:
28 V (Max.)  
23 µs (Typ.)  
2.4 µs (Typ.)  
Maximum rating of MOSFET Gate Drive Current  
OUT pin Source Current, IOUT(SRC): 500 mA (Min.)  
OUT pin Sink Current, IOUT(SNK)  
:
1000 mA (Max.)  
High accuracy OCP detection voltage, 0.6 V ± 5 %  
Protection Functions  
Overcurrent Protection (OCP)---------------- Pulse-by-pulse  
Overvoltage Protection (OVP)  
with hysteresis--------------------------------------Auto Restart  
Thermal Shutdown (TSD) with Hysteresis----Auto Restart  
Applications  
Power factor correction circuit for under output power 200 W  
Off-Line Switching Regulators  
Digital appliance; large screen LCD television, PDP  
television  
Office automation equipment; computer, server,  
monitor  
Communications Equipment  
Typical Application Circuit  
L1  
DBYP  
D1  
VAC  
VOUT  
C1  
C2  
RVS1  
Q1  
R3  
RCS  
RVS2  
LINE  
GND  
R1  
8
7
1
U1  
OUT  
VCC  
Cf  
RS  
SSC2005S  
R2  
D2  
COMP  
FB  
2
External  
power supply  
RT RDLY CS  
GND  
6
3
4
5
CP  
C6  
RT RDLY  
C3 C4  
CS  
C5 D5  
R5  
SANKTD.  
1
Rev.0.3  

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