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L4946 数据表(PDF) 3 Page - STMicroelectronics

部件名 L4946
功能描述  QUAD VOLTAGE REGULATOR WITH INHIBIT AND RESET
PDF  9 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L4946 数据表(HTML) 3 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (VS = 10.5 to 16V; IO1 = 6mA, IO2 = 8mA, IO3 = 4mA; IO4 = 0.4mA;
CO =10
µF max; Tamb = -40 to 85°C, unless otherwise specified.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VO1
Output Voltage
IO1 = 125mA;
Tamb =25
°C;
11V < VS < 16V
all temps
9.7
9.5
10
10
10.3
10.5
V
V
∆VO1
Load Regulation
IO1 = 5 to 125mA
150
mV
IQ
Quiescent Current (
∆IS)VS = 14V; IO1 = 5mA;
VS =14V ; IO1 = 125mA;
10
18
mA
mA
VS-VO1
Dropout Voltage
IO1 = 125mA
Tamb =25
°C
all temps
400
600
mV
mV
ΙL
Current Limit (Foldback) note1
VO1 = 0V
150
300
mA
VO1
Max Bat.Trans.
RO = 100
Ω
Ramp VS from 14 to 60V in 3-5ms
11
V
Hold VS at 60V for 10ms
Ramp VS from60 to 14V in 3-5ms;
Tamb =25
°C;
all temps
9.7
9.5
10
10
2
10.3
10.5
V
V
V
VO1
Rev. Voltage Trans.
VS = -35V; t
≤ 1ms; RO = 100Ω
Check VO1,Tamb =25
°C;
all temps
9.7
9.5
10
10
10.3
10.5
V
V
VO1
Rev. Voltage .
VS = -15V; RO = 100
Ω
-0.4
1
V
Ripple rejection
(by design only)
fO =120-10KHz; 1VppAC ; VS =14V
IO1 = 90mA; IO2 = 125mA;
IO3 = 75mA; IO4 = 50mA;
50
dB
fO = 20-20KHz; 1VppAC ; VS =14V
IO1 = 90mA; IO2 = 125mA;
IO3 = 75mA; IO4 = 50mA;
50
dB
∆VO1
Line Regulation
∆VO1 across VS range
VS = 11V to 26V
50
mV
VO2
Output Voltage
IO2 = 250mA; Tamb =25
°C;
all temps
7.75
7.60
8
8
8.25
8.40
V
V
∆VO2
Load Regulation
IO2 = 5 to 250mA
150
mV
∆IQ
Quiescent Current (
∆IS)VS = 14V; IO2 = 5mA;
VS = 14V; IO2 = 250mA;
10
35
mA
mA
VS-VO2
Dropout Voltage
IO2 = 250mA
Tamb =25
°C
all temps
400
600
mV
mV
ΙL
Current Limit (note1)
VO2 = 0V
300
600
mA
VO2
Max Bat.Trans.
RO = 100
Ω
Ramp VS from 14 to 60V in 3-5ms
9
V
Hold VS at 60V for 10ms
Ramp VS from60 to 14V in 3-5ms;
Tamb =25
°C;
all temps
7.85
7.60
8
8
2
8.15
8.20
V
V
V
VO2
Rev. Voltage Trans.
VS = -35V; t < 1ms; RO = 100
Ω
Check VO2, standard
Tamb =25
°C
all temps
7.85
7.80
8
8
8.15
8.20
V
V
VO2
Rev. Voltage .
VS = -15V; t = 30s; RO = 100
Ω
-0.4
1
V
L4946
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