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