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L4977A 데이터시트(PDF) 2 Page - STMicroelectronics

부품명 L4977A
상세설명  7A SWITCHING REGULATOR
PDF  21 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4977A 데이터시트(HTML) 2 Page - STMicroelectronics

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PIN CONNECTION (Top view)
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V9
Input Voltage
55
V
V9
Input Operating Voltage
50
V
V7
Output DC Voltage
Output Peak Voltage at t = 0.1
µs f = 200KHz
-1
-7
V
V
I7
Maximum Output Current
Internally Limited
V6
Bootstrap Voltage
Bootstrap Operating Voltage
65
V9 +15
V
V
V3,V12
Input Voltage at Pins 3, 12
12
V
V4
Reset Output Voltage
50
V
I4
Reset Output Sink Current
50
mA
V5,V10, V11, V13
Input Voltage at Pin 5, 10, 11, 13
7
V
I5
Reset Delay Sink Current
30
mA
I10
Error Amplifier Output Sink Current
1
A
I12
Soft Start Sink Current
30
mA
Ptot
Total Power Dissipation at Tcase < 120
°C30
W
Tj,Tstg
Junction and Storage Temperature
-40 to 150
°C
THERMAL DATA
Symbol
Parameter
Value
Unit
Rth j-case
Rth j-amb
Thermal Resistance Junction-case
max
Thermal Resistance Junction-ambient
max
1
35
°C/W
°C/W
L4977A
2/21



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