L5951(2001) データシートの表示（PDF） - STMicroelectronics
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L5951
(Rev.:2001)
(Rev.:2001)
STMicroelectronics
L5951 Datasheet PDF : 13 Pages
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L5951
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,
350
µA
IREG2 = 50mA, IREG1 = 50mA
EN, Sleep* = 0V, VBAT = 14V,
110
µA
IREG2 = 500µA, IREG1 = 250mA
Maximum QuiescentCurrent -
VBAT = 14V, IREG1 = 100mA,
VBAT
IREG2 = 100mA, IREG3 = 100mA,
IBUS = 30mA
LVS = 0V
10
mA
LVS = 10V
10.5
mA
Maximum QuiescentCurrent -
VBAT = 14V, IREG1 = 100mA,
LVS
IREG2 = 100mA, IREG3 = 100mA,
IBUS = 30mA LVS = 10V
750
µA
EN Switch Input Current
VBAT = 14V, EN ≥ 2V
VBAT = 14V, EN ≥ 0.8V
0
µA
0
µA
VENL, ENH EN Input Threshold Voltage
VBAT = 14V, VIL
VBAT = 14V, VIH
0.8
V
2
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
VREG2
V
until Reset* drops
- 0.20
VRES, HYS Reset Threshold Hysteresis
50
mV
(*) Denotes active low.
3.3V/100mA DC Characteristics for Regulator Output 1
VREG1
∆Vline
Output Voltage
Line Regulation
IREG1 =100mA
7V ≤ VBAT ≤ 26V
(Measure ∆VREG1 Across VBAT
Range)
3.14 3.3 3.46
V
7
15
mV
∆Vload Load Regulation
0.5mA ≤ IREG1 ≤ 100mA
(Measure ∆VREG1 Across VLOAD
Range)
8
50
mV
VDROPOUT Dropout Voltage (Measure VBAT - IREG1 = 100mA
VREG1 when VREG1 drops 0.1V) IREG1 = 5mA
Ilim1 Current Limit
SVR1 Reg1 Supply Voltage Rejection
IREG1 = IREG2 = IREG3 = 50mA
f = 20 to 20kHz
VBAT = 14Vdc, 1Vac,pp
1
2.2
V
0.12 1.5
V
200
mA
45
dB
5V/100mA Regulator Output 2
VREG2
∆Vline
Output Voltage
Line Regulation
IREG2 =100mA
4.75
5
5.25
V
7V ≤ VBAT ≤ 26V
(Measure ∆VREG2 Across VBAT
Range)
6
40
mV
6/13
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