L5956 データシートの表示（PDF） - STMicroelectronics
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L5956 Datasheet PDF : 16 Pages
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Electrical specifications
L5956
Table 4. Electrical characteristics (continued)
(VS = 14.4V; Tamb = 25°C; unless otherwise specified)
Symbol
Parameter
Test condition
REGULATOR 4
Vo (REG 4)
ΔV
ΔV
ΔVi
Iq
PSRR
Output voltage 3.3V
Line regulation
Line regulation
Load regulation
Quiescent current
Supply voltage ripple rejection
Vdrop
Im
Drop out voltage
Current limit
POWER SWITCH
Vin2 = 6 to 18V; I = 800mA
Vin2 = 6 to 18V; I = 10mA
Ireg4 = 1 to 800mA
Ireg4 = 10mA
f = 1KHz; Vin1 = 1.5Vpp;
Io = 800mA
Ireg4 = 800mA(1)
Rshort = 0.5Ω
VdropSW
IpSW1
IpSW2
SWDEL
Drop voltage power switch
Peak current power switch
Peak current power switch
Delay protection
RESET BUFFER (with push-pull buffer)
IdcSW = 1.8A max.
Peak time < 15ms
Peak time > 40ms
RES
RES falling
Vreg2 = 5V
RES
RES rising
VHYS(RES)
IHsource (RES)
ILsink (RES)
RES delay
ΔTRES
Hysteresis of reset buffer
High level source current
Low level sink current
Cres = 47nF
Reset rise and fall time
Vreg2 = 5V
Reset = 0V
Reset = 5V
R = 10kΩ C = 15pF
ICharge
IDischarge
VTH(F)
VTH(R)
Vol
Voh
Charge current
Discharge current
Falling voltage threshold
Rising voltage threshold
Low level
High level
HOLD SIGNAL
CRES = 0V
CRES = 5V
ISINK(RES) = 1mA
VlowI
Vlowh
Hold output low for Vin1 low
Hold output high for Vin1
normal
Low detection
Normal high detection
Vlowl
Hold output low for Vin1 high
VHOLD R Low VIN1 threshold
VHYS (HOLD_L) Hysteresis low TH.
low detection
VIN1 Low TH.
Min. Typ. Max. Unit
3.15 3.3 3.45
V
50
mV
50
mV
100 mV
5
mA
50
dB
2.5
V
1
2
A
0.5
V
2
3.5
A
1
2
A
15
40
ms
4.6 4.7 4.8
V
4.65 4.8 4.95
V
50 100 200 mV
1000 1300 1600 µA
14
16
18
mA
10
60
ms
50
µs
3
5
10
µA
1
3
mA
1
1.2 1.4
V
2.5 2.8 3.5
V
0.3 0.5
V
4.5 Vreg2 5.5
V
9
V
10
18
V
22
V
9
9.5
10
V
50 150 200 mV
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