參數(shù)資料
型號(hào): LNK501P
廠商: POWER INTEGRATIONS INC
元件分類: 穩(wěn)壓器
英文描述: Energy Efficient, CV/CC Switcher for Very Low Cost Chargers and Adapters
中文描述: 0.4 A SWITCHING REGULATOR, 46 kHz SWITCHING FREQ-MAX, PDIP7
封裝: PLASTIC, DIP-8
文件頁(yè)數(shù): 2/20頁(yè)
文件大小: 155K
代理商: LNK501P
2
F
9/02
LNK501
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.
CONTROL (C) Pin:
Error amplifier 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.
Figure 3. Pin Configuration.
PI-2711-073107
S
D
S
S
S
C
5
7
8
S
4
2
3
1
P Package (DIP-8B)
G Package (SMD-8B)
LNK501
Figure 2. Block Diagram.
PI-2777-071802
SHUTDOWN/
AUTO-RESTART
PW
M
COMPARATOR
CLOCK
SAW
OSCILLATOR
INTERNAL
SUPPLY
5.7
V
4.7
V
SOURCE
S
R
Q
DMAX
-
+
CONTROL
-
+
5.7 V
I
FB
ZC
VC
+
-
EEDGE
BLANKING
0
1
HYSTERETIC
THERMAL
SHUTDOWN
LEADING
CURRENT
LIMIT
ADJUST
LOW
FREQUENCY
OPERATION
SHUNT REGULATOR/
ERROR AMPLIFIER
+
-
DRAIN
IDCS
CURRENT LIMIT
COMPARATOR
RE
÷
8
相關(guān)PDF資料
PDF描述
LNK501 Energy Efficient, CV/CC Switcher for Very Low Cost Chargers and Adapters
LNM223KS01 2 Digit 8.0 mm
LNM223AS01 2 Digit 8.0 mm
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