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L6566BH

更新时间: 2024-11-04 12:03:35
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 控制器
页数 文件大小 规格书
51页 1264K
描述
Multimode controller for SMPS

L6566BH 数据手册

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L6566BH  
Multimode controller for SMPS  
Datasheet — production data  
Features  
Selectable multimode operation: fixed  
frequency or quasi-resonant  
On-board 840 V high voltage startup  
Advanced light load management  
Low quiescent current (< 3 mA)  
Adaptive UVLO  
SO16N  
Line feedforward for constant power capability  
-600/+800 mA totem pole gate driver with  
vs. mains voltage  
active pull-down during UVLO  
Pulse-by-pulse OCP, shutdown on overload  
SO16N package  
(latched or auto-restart)  
Transformer saturation detection  
Applications  
Programmable frequency modulation for EMI  
Industrial SMPS  
reduction  
SMPS running off rectified 3-phase input line  
Latched or auto-restart OVP  
Brownout protection  
Figure 1.  
Block diagram  
VREF  
10  
SS  
14  
COMP  
9
VFF  
15  
VCC  
6.4V  
-
TIME  
OUT  
OVPL  
OVP  
1
SOFT-START  
&
FAULT MNGT  
OFF2  
LOW CLAMP  
& DISABLE  
I
charge  
HV  
7.7V  
LINE VOLTAGE  
FEEDFORWARD  
Q
Ref erence  
voltages  
Internal supply  
IHV  
VOLTAGE  
REGULATOR  
&
CS  
LEB  
VCC  
5
7
UVLO  
1.5 V  
ADAPTIVE UVLO  
-
+
-
+
+
-
Vth  
PWM  
OCP  
VCC  
14V  
VCC  
UVLO_SHF  
400 uA  
+
6
FMOD  
Hiccup-mode  
OCP logic  
-
-
5.7V  
BURST-MODE  
+
OCP2  
4
GD  
OSC  
13  
12  
OSCILLATOR  
R
Q
DRIVER  
MODE SELECTION  
&
TURN-ON LOGIC  
S
MODE/SC  
ZCD  
TIME  
OUT OVPL  
ZERO CURRENT  
DETECTOR  
50 mV  
100 mV  
-
+
4.5V  
8
-
OFF2  
11  
OVP  
OVERVOLTAGE  
PROTECTION  
LATCH  
DIS  
IC_LATCH  
16  
-
AC_OK  
AC_FAIL  
UVLO  
DISABLE  
15 µA  
0.450V  
0.485V  
3 V  
+
3
April 2012  
Doc ID 16610 Rev 2  
1/51  
This is information on a product in full production.  
www.st.com  
51  
 

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