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L5956PD Datasheet(PDF) 8 Page - STMicroelectronics

Part # L5956PD
Description  Multifunction voltage regulator for car radio
PDF  16 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L5956PD Datasheet(HTML) 8 Page - STMicroelectronics

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Electrical specifications
L5956
8/16
REGULATOR 4
Vo (REG 4)
Output voltage 3.3V
3.15
3.3
3.45
V
ΔV
Line regulation
Vin2 = 6 to 18V; I = 800mA
50
mV
ΔV
Line regulation
Vin2 = 6 to 18V; I = 10mA
50
mV
ΔVi
Load regulation
Ireg4 = 1 to 800mA
100
mV
Iq
Quiescent current
Ireg4 = 10mA
5
mA
PSRR
Supply voltage ripple rejection
f = 1KHz; Vin1 = 1.5Vpp;
Io = 800mA
50
dB
Vdrop
Drop out voltage
Ireg4 = 800mA
(1)
2.5
V
Im
Current limit
Rshort = 0.5Ω
12
A
POWER SWITCH
VdropSW
Drop voltage power switch
IdcSW = 1.8A max.
0.5
V
IpSW1
Peak current power switch
Peak time
< 15ms
2
3.5
A
IpSW2
Peak current power switch
Peak time
> 40ms
1
2
A
SWDEL
Delay protection
15
40
ms
RESET BUFFER (with push-pull buffer)
RES
RES falling
Vreg2 = 5V
4.6
4.7
4.8
V
RES
RES rising
Vreg2 = 5V
4.65
4.8
4.95
V
VHYS(RES)
Hysteresis of reset buffer
50
100
200
mV
IHsource (RES) High level source current
Reset = 0V
1000
1300
1600
µA
ILsink (RES)
Low level sink current
Reset = 5V
14
16
18
mA
RES delay
Cres = 47nF
10
60
ms
ΔTRES
Reset rise and fall time
R = 10k
Ω C = 15pF
50
µs
ICharge
Charge current
CRES = 0V
3
5
10
µA
IDischarge
Discharge current
CRES = 5V
1
3
mA
VTH(F)
Falling voltage threshold
1
1.2
1.4
V
VTH(R)
Rising voltage threshold
2.5
2.8
3.5
V
Vol
Low level
ISINK(RES) = 1mA
0.3
0.5
V
Voh
High level
4.5
Vreg2
5.5
V
HOLD SIGNAL
VlowI
Hold output low for Vin1 low
Low detection
9
V
Vlowh
Hold output high for Vin1
normal
Normal high detection
10
18
V
Vlowl
Hold output low for Vin1 high
low detection
22
V
VHOLD R
Low VIN1 threshold
VIN1 Low TH.
9
9.5
10
V
VHYS (HOLD_L) Hysteresis low TH.
50
150
200
mV
Table 4.
Electrical characteristics (continued)
(VS = 14.4V; Tamb = 25°C; unless otherwise specified)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit



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