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L4964 Datasheet(PDF) 4 Page - STMicroelectronics

Part # L4964
Description  HIGH CURRENT SWITCHING REGULATOR
PDF  13 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4964 Datasheet(HTML) 4 Page - STMicroelectronics

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background image
Figure 2 : Soft Start Waveforms
Figure 3 : Current Limiter Waveforms
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
Vi
Input Voltage (pin 3)
36
V
Vi – V2
Input to Output Voltage Difference
38
V
V2
Output DC Voltage
Output Peak Voltage at t = 0.1
µsec f = 100 kHz
–1
–7
V
V
V12
Voltage at Pin 12
10
V
V5, V7, V9
Voltage at Pins 5, 7 and 9
5.5
V
V10, V6, V13
Voltage at Pins 10, 6 and 13
7
V
V14
Voltage at Pin 14 (I14
≤ 1 mA)
Vi
I9
Pin 9 Sink Current
1
mA
I11
Pin 11 Source Current
20
mA
I14
Pin 14 Sink Current (V14 < 5 V)
50
mA
Ptot
Power Dissipation at Tcase
≤ 90 °C20
W
Tj, Tstg
Junction and Storage Temperature
– 40 to 150
°C
THERMAL DATA
Symbol
Parameter
Value
Unit
Rth j-case
Thermal Resistance Junction-case
Max.
3
°C/W
Rth j-amb
Thermal Resistance Junction-ambient
Max.
35
°C/W
L4964
4/13



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