參數(shù)資料
型號(hào): LC5511D
元件分類: 穩(wěn)壓器
英文描述: POWER FACTOR CONTROLLER, 18 kHz SWITCHING FREQ-MAX, DIP7
封裝: DIP-8/7
文件頁(yè)數(shù): 34/40頁(yè)
文件大?。?/td> 888K
代理商: LC5511D
4
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
28106.02
S/GND
Q
S
R
TSD
LEB
D/ST
FB
STARTUP
Reg
Bias
UVLO
VCC
OCP
OVP
OSC
OCP
Detection
Bottom
Reg
Control
Feedback
OLP
Drv
NF
Controller Chip
Figure 3. LC552xD series functional block diagram (for isolated DIP8 designs)
LC552xD Series Terminal List Table
Number
Name
Function
1
S/GND
MOSFET source and GND terminal for the Controller chip
2
VCC
Supply voltage input
3
OCP
Overcurrent Protection and quasi-resonant signal input terminal
4
FB
Feedback signal input and Overload Protection (OLP) signal input
5NF
No function; must be externally connected to S/GND pin with as short
a trace as possible, for stable operation of the device
6
OVP
Overvoltage Protection (OVP) signal input
7
Pin removed
8
D/ST
MOSFET drain terminal and input of the startup current
1
2
3
4
8
7
6
5
D/ST
OVP
NF
S/GND
VCC
OCP
FB
Pin-out Diagram
(LC552xD)
S/GND
Q
S
R
TSD
LEB
D/ST
FB
STARTUP
Reg
Bias
UVLO
VCC
OCP
OVP
OSC
OCP
Detection
Bottom
Reg
Control
Feedback
OLP
Drv
Controller Chip
Figure 4. LC552xF series functional block diagram (for isolated TO-220F-7L designs)
LC552xF Series Terminal List Table
Number
Name
Function
1
D/ST
MOSFET drain terminal and input of the startup current
2
S/GND
MOSFET source and GND terminal for the Controller chip
3
NC
No connection
4
VCC
Supply voltage input
5
OCP
Overcurrent Protection and quasi-resonant signal input terminal
6
FB
Feedback signal input and Overload Protection (OLP) signal input
7
OVP
Overvoltage Protection (OVP) signal input
2
3
4
6
1
5
7
D/ST
S/GND
NC
VCC
OCP
FB
OVP
1
2
3
4
5
6
7
D/ST
S/GND
NC
VCC
OCP
FB
OVP
2
4
6
1
3
5
7
D/ST
S/GND
NC
VCC
OCP
FB
OVP
Pin-out Diagrams
(LC552xF)
(LF 3051)
(LF 3052)
(LF 3054)
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