L4946 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
L4946 Datasheet PDF : 9 Pages
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L4946
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Ripple rejection
∆VO2
Line Regulation
∆VO2 across VS range
Output Noise (design only)
VO3
∆VO3
∆VO3
∆IQ
VS-VO3
Output Voltage
Line Regulation
Load Regulation
Quiescent Current (∆IS)
Dropout Voltage
IL
Current Limit note 1
VO3
Max Bat.Trans.
VO3
Rev. Voltage Trans.
VO3
Rev. Voltage .
Ripple rejection
Output Noise
VO4
∆VO4
∆VO4
∆IQ
VS-VO4
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Dropout Voltage
ΙL
Current Limit (note 1)
Test Condition
fO = 120-10KHz; 1VppAC ; VS =14V
IO1 = 90mA; IO2 = 125mA;
IO3 = 75mA; IO4 = 50mA;
fO = 20-20KHz; 1VppAC ; VS =14V
IO1 = 90mA; IO2 = 125mA;
IO3 = 75mA; IO4 = 50mA;
Min.
50
50
VS = 10.5V to 26V
Check output for AC noise
using A weighted filter (20-
20KHz)
Check output for AC noise
using 100kHz LP (20-100KHz)
IO3 =200mA; Tamb = 25°C;
all temps
VS = 7V to 26V
IO3 = 5 to 200mA
VS = 14V; IO3 = 5mA;
VS = 14V; IO3 = 200mA;
IO3 = 200mA
Tamb = 25°C;
all temps
IO3 = 5mA
set VS = VO3+0.3V; Tamb = 25°C;
set VS = VO3+0.4V;all
VO3 = 0V
RO = 100Ω
Ramp VS from 14 to 60V in 3-5ms
Hold VS at 60V for 10ms
Ramp VS from60 to 14V in 3-5ms;
Tamb = 25°C;
all temps
VS = -35V; t < 1ms; RO = 100Ω
Check VO3, standard Tamb = 25°C;
all temps
VS = -15V; RO = 100Ω
fO = 120-10KHz; 1VppAC ; VS =14V
IO1 = 90mA; IO2 = 125mA;
IO3 = 75mA; IO4 = 50mA;
fO = 10KHz; 1VppAC ; VS =14V
Check Output for AC noise
using a 100KHz LP filter
Check Output for AC noise
using an A weighted filter (20-
20KHz)
IO4 = 100mA; Tamb = 25°C;
all temps
VS = 7V to 26V
IO4 = 0.5 to 100mA
VS = 14V; IO4 = 2mA;
VS = 14V; IO4 = 100mA;
IO4 = 100mA
Tamb = 25°C
all temps
VO4 = 0V
4.85
4.75
240
4.85
4.75
4.85
4.75
-0.4
50
50
4.85
4.75
120
Typ.
5
5
5
5
5
5
5
5
Max.
40
200
400
5.15
5.25
40
100
10
25
400
600
400
500
480
6
2
5.15
5.25
5.15
5.25
1
400
200
5.15
5.25
40
80
500
20
400
600
300
Unit
dB
dB
mV
µV
µV
V
V
mV
mV
mA
mA
mV
mV
mV
mV
mA
V
V
V
V
V
V
V
dB
dB
µV
µV
V
V
mV
mV
µA
mA
mV
mV
mA
4/9
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