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L4955 데이터시트(PDF) 2 Page - STMicroelectronics

부품명 L4955
상세설명  5A ULDO LINEAR REGULATORS FAMILY
PDF  14 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4955 데이터시트(HTML) 2 Page - STMicroelectronics

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VERSAWATT
(TO220)
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VIN
Supply Input Voltage
24
V
ADJ and CL pins
PG and INH pins
-0.3 to 4
0to VIN
V
V
PTOT
Power Dissipation @ Tamb =50
°C
Power Dissipation @ Tcase =90°C
2
15
W
W
Tst,Ti
Storage Temperature
-40 to +150
°C
PIN CONNECTIONS (Top views)
HEPTAWATT
1
2
3
4
5
6
7
OUT
PG
ADJ
GND
INH
CL
IN
D96IN367
tab connected to pin 4
OUT
GND
IN
1
3
D96IN369
IN
PROGRAM.
C.L.
PRE
REGULATOR
VREF=
1.26V
+
-
E/A
OUT
ADJ
GND
PG
CL
D96IN366
1(1)
3
26
4(2)
5
7(3)
PIN x = HEPTAWATT
PIN (x) = VERSAWATT
INHIBIT
ACTIVE HIGH
1.26V
INH
V
IN
10
µF
FIXED
C.L.
THERMAL
SHUTDOWN
FOLDBACK
BUFFER
CHARGE
PUMP
POWER
DMOS
150m
Ω
+
-
VREF
0.9V
REF
R1
22
µF
R2
VOUT
R
CL
(1/4W, 1%)
BLOCK DIAGRAM
L4955
2/14



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