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L4962A Arkusz danych(PDF) 4 Page - STMicroelectronics

Numer części L4962A
Szczegółowy opis  1.5A POWER SWITCHING REGULATOR
PDF  15 Pages
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Producent  STMICROELECTRONICS [STMicroelectronics]
Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4962A Arkusz danych(HTML) 4 Page - STMicroelectronics

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Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
DYNAMIC CHARACTERISTICS (cont’d)
f
Switching frequency
85
100
115
KHz
∆ f
∆ Vi
Voltage stability of
switching frequency
Vi = 9V to 46V
0.5
%
∆ f
∆ T
j
Temperature stability of
switching frequency
Tj =0
°C to 125°C1
%
fmax
Maximum operating
switching frequency
Vo =Vref
Io = 1A
120
150
KHz
Tsd
Thermal shutdown
junction temperature
150
°C
DC CHARACTERISTICS
I7Q
Quiescent drain current
100% duty cycle
pins 2 and 14 open
Vi = 46V
30
40
mA
0% duty cycle
15
20
mA
-I2L
Output leakage current
0% duty cycle
1
mA
SOFT START
I15SO
Source current
100
140
180
µA
I15SI
Sink current
50
70
120
µA
ERROR AMPLIFIER
V11H
High level output voltage
V10 = 4.7V
I11 = 100
µA
3.5
V
V11L
Low level output voltage
V10 = 5.3V
I11 = 100
µA
0.5
V
I11SI
Sink output current
V10 = 5.3V
100
150
µA
-I11SO
Source output current
V10 = 4.7V
100
150
µA
I10
Input bias current
V10 = 5.2V
2
10
µA
Gv
DC open loop gain
V11 =1V to 3V
46
55
dB
OSCILLATOR
-I14
Oscillator source current
5
mA
ELECTRICAL CHARACTERISTICS (continued)
L4962



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