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CM6901GIP 参数 Datasheet PDF下载

CM6901GIP图片预览
型号: CM6901GIP
PDF下载: 下载PDF文件 查看货源
内容描述: SLS ( SRC / LLC + SR )控制器, 1 FM + 2的PWM [SLS (SRC/LLC+SR) Controller with 1 FM+2 PWMs]
分类和应用: 控制器
文件页数/大小: 15 页 / 217 K
品牌: CHAMP [ CHAMPION MICROELECTRONIC CORP. ]
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CM6901  
SLS (SRC/LLC+SR) Controller with 1 FM+2 PWMs  
Vref  
RT  
+
-
VFB  
2.5V  
V To I  
OSC  
CT  
RSET  
2 PWMings:  
SR Ideal Diode PWMing (Synchronous Outputs)  
SR Ideal Diode PWMing for synchronous drivers is accomplished by comparing the voltage signal at the RSET pin  
to RTCT ramp. The pulse-width reduction happens when the voltage at the RSET is lower than 1.5V. This allows  
safe operation of the power converter with synchronous rectification when the switching frequency is below the  
highest resonant point frequency fr1.  
Vout  
Vref  
3V  
Rf1  
RT  
VFB  
1.25V  
+
FEAO  
+
V To I  
OSC  
To  
Logic  
Rf3  
-
2.5V  
-
1.5V  
CT  
RSET  
Rf4  
Decreasing Pulsewidth  
with V(RSET)<1.5V  
SRDRV  
PRIDRV  
2009/11/02 Rev1.4  
Champion Microelectronic Corporation  
Page 10