L4948 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
L4948 Datasheet PDF : 9 Pages
| |||
L4946
ELECTRICAL CHARACTERISTICS (VS = 10.5 to 16V; IO1 = 6mA, IO2 = 8mA, IO3 = 4mA; IO4 = 0.4mA;
CO = 10µF max; Tamb = -40 to 85°C, unless otherwise specified.)
Symbol
VO1
∆VO1
IQ
VS-VO1
ΙL
VO1
VO1
VO1
∆VO1
VO2
∆VO2
∆IQ
VS-VO2
ΙL
VO2
VO2
VO2
Parameter
Output Voltage
Load Regulation
Quiescent Current (∆IS)
Dropout Voltage
Current Limit (Foldback) note1
Max Bat.Trans.
Rev. Voltage Trans.
Rev. Voltage .
Ripple rejection
(by design only)
Line Regulation
∆VO1 across VS range
Output Voltage
Load Regulation
Quiescent Current (∆IS)
Dropout Voltage
Current Limit (note1)
Max Bat.Trans.
Rev. Voltage Trans.
Rev. Voltage .
Test Condition
IO1 = 125mA;
Tamb = 25°C;
11V < VS < 16V all temps
IO1 = 5 to 125mA
VS = 14V; IO1 = 5mA;
VS =14V ; IO1 = 125mA;
IO1 = 125mA
Tamb = 25°C
all temps
VO1 = 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 VO1,
Tamb = 25°C;
all temps
VS = -15V; RO = 100Ω
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.
9.7
9.5
150
9.7
9.5
9.7
9.5
-0.4
50
50
VS = 11V to 26V
IO2 = 250mA; Tamb = 25°C;
all temps
IO2 = 5 to 250mA
VS = 14V; IO2 = 5mA;
VS = 14V; IO2 = 250mA;
IO2 = 250mA
Tamb = 25°C
all temps
VO2 = 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 VO2, standard
Tamb = 25°C
all temps
VS = -15V; t = 30s; RO = 100Ω
7.75
7.60
300
7.85
7.60
7.85
7.80
-0.4
Typ.
10
10
10
10
10
10
8
8
8
8
8
8
Max.
10.3
10.5
150
10
18
400
600
300
11
2
10.3
10.5
10.3
10.5
1
50
8.25
8.40
150
10
35
400
600
600
9
2
8.15
8.20
8.15
8.20
1
Unit
V
V
mV
mA
mA
mV
mV
mA
V
V
V
V
V
V
V
dB
dB
mV
V
V
mV
mA
mA
mV
mV
mA
V
V
V
V
V
V
V
3/9
|
|
Share Link: 