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參數(shù)資料
| 型號： | LNK305P-TL |
| 廠商： | POWER INTEGRATIONS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.8 A SWITCHING REGULATOR, 70 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 142K |
| 代理商： | LNK305P-TL |
2
LNK304-306
D
1/04
Figure 3. Pin Configuration.
Pin Functional Description
DRAIN (D) Pin:
Power MOSFET drain connection. Provides internal operating
current for both start-up and steady-state operation.
BYPASS (BP) Pin:
Connection point for a 0.1 uF external bypass capacitor for the
internally generated 5.8 V supply.
FEEDBACK (FB) Pin:
During normal operation, switching of the power MOSFET is
controlled by this pin. MOSFET switching is terminated when
a current greater than 49
A is delivered into this pin.
SOURCE (S) Pin:
This pin is the power MOSFET source connection. It is also the
ground reference for the BYPASS and FEEDBACK pins.
PI-3491-111903
FB
D
S
BP
S
P Package (DIP-8B)
G Package (SMD-8B)
8
5
7
1
4
2
3
PI-2367-112503
CLOCK
JITTER
OSCILLATOR
5.8 V
4.85 V
SOURCE
(S)
S
R
Q
DC
MAX
BYPASS
(BP)
FAULT
PRESENT
+
-
VI
LIMIT
LEADING
EDGE
BLANKING
THERMAL
SHUTDOWN
+
-
DRAIN
(D)
REGULATOR
5.8 V
BYPASS PIN
UNDER-VOLTAGE
CURRENT LIMIT
COMPARATOR
FEEDBACK
(FB)
Q
49 A
6.3 V
RESET
AUTO-
RESTART
COUNTER
1.63 V -V
TH
CLOCK
Figure 2. Functional Block Diagram.
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