参数资料
型号: LNK501P
厂商: Power Integrations
文件页数: 2/20页
文件大小: 0K
描述: IC SWIT OCP CV/CC HV 8DIP
标准包装: 3,000
系列: LinkSwitch®
输出隔离: 隔离
频率范围: 26kHz ~ 46kHz
输出电压: 700V
功率(瓦特): 4W
工作温度: -40°C ~ 150°C
封装/外壳: 8-DIP(0.300",7.62mm),7 引线
供应商设备封装: DIP-8B
包装: 管件
配用: 596-1001-ND - KIT DESIGN ACCELERATOR ADAPTER
LNK501
CONTROL
ZC
VC
0
1
INTERNAL
SUPPLY
DRAIN
SHUNT REGULATOR/
ERROR AMPLIFIER
-
+ 5.6 V
5.6 V
4.7 V
SHUTDOWN/
AUTO-RESTART
+
-
÷ 8
CURRENT
LIMIT
ADJUST
CURRENT LIMIT
COMPARATOR
-
+
I FB
HYSTERETIC
THERMAL
SHUTDOWN
OSCILLATOR
D MAX
CLOCK
S
Q
IDCS
SAW
-
+
PWM
COMPARATOR
R
LEADING
RE
LOW
FREQUENCY
OPERATION
EDGE
BLANKING
SOURCE
PI-2777-032503
Figure 2. Block Diagram.
Pin Functional Description
DRAIN (D) Pin:
Power MOSFET drain connection. Provides internal operating
current for start-up. Internal current limit sense point for drain
current.
S
S
S
1
2
3
LNK501
8
7
C
S
CONTROL (C) Pin:
Error ampli?er and feedback current input pin for duty cycle
and current limit control. Internal shunt regulator connection
to provide internal bias current during normal operation. It is
also used as the connection point for the supply bypass and
auto-restart/compensation capacitor.
SOURCE (S) Pin:
Output MOSFET source connection for high voltage power
return. Primary side control circuit common and reference
point.
2
I
2/05
S 4 5 D
P PACKAGE (DIP-8B)
G PACKAGE (SMD-8B)
Figure 3. Pin Con?guration.
PI-2711-073107
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