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L5951 数据表(PDF) 6 Page - STMicroelectronics

部件名 L5951
功能描述  TRIPLE OUTPUT MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO WITH IDR/CLASS 2 INTERFACE
PDF  13 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L5951 数据表(HTML) 6 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS
(Tamb = 25°C, VBAT = 14.4V unless otherwise specified. Standard Loads: IREG1 = 0.5mA, IREG2 = 0.5mA, IREG3 = 5mA)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Iq,ST-BY
Standby Quiescent Current
EN, Sleep* = 0V, VBAT = 14V,
IREG2 = 50mA, IREG1 = 50mA
EN, Sleep* = 0V, VBAT = 14V,
IREG2 = 500µA, IREG1 = 250mA
350
110
µA
µA
Maximum QuiescentCurrent -
VBAT
VBAT = 14V, IREG1 = 100mA,
IREG2 = 100mA, IREG3 = 100mA,
IBUS = 30mA
LVS = 0V
LVS = 10V
10
10.5
mA
mA
Maximum QuiescentCurrent -
LVS
VBAT = 14V, IREG1 = 100mA,
IREG2 = 100mA, IREG3 = 100mA,
IBUS = 30mA
LVS = 10V
750
µA
EN Switch Input Current
VBAT = 14V, EN ≥ 2V
VBAT = 14V, EN ≥ 0.8V
0
0
µA
µA
VENL, ENH EN Input Threshold Voltage
VBAT = 14V, VIL
VBAT = 14V, VIH
2
0.8
V
VRES, L
Reset* Output Low Voltage
Set VBATso VREG2 drops 0.30V
0
0.02
0.4
V
VRES
Reset* Output Voltage Threshold
Decrease VBATso VREG2 drops
until Reset* drops
VREG2
- 0.20
V
VRES, HYS Reset Threshold Hysteresis
50
mV
(*) Denotes active low.
3.3V/100mA DC Characteristics for Regulator Output 1
VREG1
Output Voltage
IREG1 =100mA
3.14
3.3
3.46
V
∆Vline
Line Regulation
7V
≤ VBAT ≤ 26V
(Measure
∆VREG1 Across VBAT
Range)
715
mV
∆Vload
Load Regulation
0.5mA
≤ IREG1 ≤ 100mA
(Measure
∆VREG1 Across VLOAD
Range)
850
mV
VDROPOUT Dropout Voltage (Measure VBAT -
VREG1 when VREG1 drops 0.1V)
IREG1 = 100mA
IREG1 = 5mA
1
0.12
2.2
1.5
V
V
Ilim1
Current Limit
200
mA
SVR1
Reg1 Supply Voltage Rejection
IREG1 = IREG2 = IREG3 = 50mA
f = 20 to 20kHz
VBAT = 14Vdc, 1Vac,pp
45
dB
5V/100mA Regulator Output 2
VREG2
Output Voltage
IREG2 =100mA
4.75
5
5.25
V
∆Vline
Line Regulation
7V
≤ VBAT ≤ 26V
(Measure
∆VREG2 Across VBAT
Range)
640
mV



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