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L5950 数据表(PDF) 3 Page - STMicroelectronics

部件名 L5950
功能描述  MULTIPLE MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
PDF  8 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L5950 数据表(HTML) 3 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (Refer to the application circuit, VS = 14.4V; Tamb = 25°C; unless
otherwise specified.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Iq,ST-BY
Standby Quiescent Current
All Outputs Off, VBAT = 14V
2
µA
Iq
Maximum Quiescent Current
VBAT = 14V, IREG1 = 350mA,
IREG2 = 175mA, IREG3 = 350mA,
IREG4 = 1A, IREG5 = 250mA,
IHSD1 = 2A, IHSD2,3 = 450mA
150
mA
IEN
Enable Input Current
VBAT = 14V,
Enable
≥ 2V
VBAT = 14V,
Enable
≥ 0.8V
-10
10
µA
µA
VIL, VIH
Enable Threshold Voltage
VBAT = 14V, VIL
VBAT = 14V, VIH
2
0.8
V
V
10V/350mA REG 1 OUTPUT
VREG1
Output Voltage
IREG1 = 350mA
11V
≤ VCC ≤ 16V
9.50
10
10.5
V
∆Vline
Line Regulation
11V
≤ VCC ≤ 26V
(Measure
∆ VREG1 Across VCC
Range)
55
mV
∆Vload
Load Regulation
5mA
≤ IREG1 ≤ 350mA
55
mV
VDROPOUT
Dropout Voltage (Measure
VBAT- VREG1 when VREG1 drops
0.1V)
(Measure VBAT- VREG1 when
VREG1 drops 0.1V)
IREG1 = 350mA
IREG1 = 5mA
900
300
mV
mV
Ilim1
Current Limit
0.51
1.1
A
SVR
Ripple Rejection
fo = 1kHz, VBAT = 14V
with 1Vpp AC
IREG1 = 175mA
50
dB
8.5V/175mA REG 2 OUTPUT
VREG2
Output Voltage
IREG2 = 175mA
9.5V
≤ VBAT ≤ 16V
8.3
8.5
8.7
V
∆Vline
Line Regulation
9.5V
≤ VBAT ≤ 26V
(Measure
∆ VREG2 Across VBAT
Range)
50
mV
∆Vload
Load Regulation
5mA
≤ IREG2 ≤ 175mA
50
mV
VDROPOUT
Dropout Voltage
(Measure VBAT- VREG2 when
VREG2 drops 0.1V)
IREG2 = 175mA
IREG2 = 5mA
900
300
mV
mV
Ilim2
Current Limit
280
525
mA
SVR
Ripple Rejection
fo = 1kHz, VBAT = 14V
with 1Vpp AC
IREG2 = 100mA
50
dB
5V/350mA REG 3 OUTPUT
VREG3
Voltage Offset from VREF
10
40
mV
∆Vline
Line Regulation
7V
≤ VBAT ≤ 26V
(Measure
∆ VREG3 Across VBAT
Range)
40
mV
∆Vload
Load Regulation
5mA
≤ IREG3 ≤ 350mA
100
mV
L5950
3/8



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