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L4963 Datasheet(PDF) 6 Page - STMicroelectronics

No. de pieza L4963
Descripción Electrónicos  1.5A SWITCHING REGULATOR
PDF  17 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4963 Datasheet(HTML) 6 Page - STMicroelectronics

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Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Fig.
RESET
V12
Rising Threshold Voltage
Vi = 9 to 46V
Vref
–150
Vref
–100
Vref
–50
mV
3b
V12
Falling Threshold Voltage
Vi = 9 to 46V
Vref
–150
Vref
–200
Vref
–250
mV
3b
V9D
Delay Rising Thereshold
Voltage
V7 = OPEN
4.3
4.5
4.7
V
3b
V9F
Delay Falling Thereshold
Voltage
1
1.5
2
V
3b
–I9SO
Delay Source Current
V9 = 4.7V V12 = 5.3V
70
110
140
µA3b
I9SI
Delay Sink Current
V9 = 4.7V V12 = 4.7V
10
mA
3b
I10
Output Leakage Current
Vi = 46V V7 = 8.5V
50
µA3b
V10
Output Saturation Volt.
I10 = 15mA; VI = 3 to 46V
0.4
V
3b
POWER FAIL
VR
Rising Threshold Voltage
Pin7 = open
17.5
19
20.5
V
3C
VF
Falling Threshold Voltage
Pin7 = open
14.25
15
15.75
V
3c
V7
Rising Threshold Voltage
Vi = 20V
4.14
4.5
4.86
V
–
V7
Falling Threshold Voltage
Vi = 20V
3.325
3.5
3.675
V
–
Vs
Output Saturation Volt.
Ia =5mA
0.4
V
3c
Is
Output Leakage Current
Vi = 46V
50
µA3c
OSCILLATOR
f
Oscillator Frequency
RT = 51K
Ω
46
60
79
kHz
–
f
Oscillator Frequency
VI = 9 to 46V
Tj = 0 to 125
°C
RT = 51K
Ω
42
83
kHz
–
ELECTRICAL CHARACTERISTIC (Continued)
L4963 - L4963D
6/17



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