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L4952D Datasheet(PDF) 2 Page - STMicroelectronics

Part # L4952D
Description  VOLTAGE REGULATOR FOR CAR RADIO APPLICATIONS
Download  8 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4952D Datasheet(HTML) 2 Page - STMicroelectronics

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ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
Vs
DC supply voltage
-2.2 .. +28
V
Vst
Transient operating supply voltage for t = 400ms
-2.2 .. +52
V
Vo1,2,3,4
Output voltages
-0.3 .. +12
V
VEN
Input voltage of EN
-0.3 .. +18
V
VIND
Input voltage for EN2, EN3, HSON
-18 .. +18
V
Vs -VIND
Max Voltage Difference between Vs and logic inputs EN2,
EN3, HSON
52
V
VDIAG
Diagnostic output
-0.3 .. +20
V
Io1
Output current out1, out4
short circuit protected
mA
Io2,3
Output current out2,3 (Note 1)
internally limited
mA
IoDIAG
Output current Diagnostic
10
mA
IHSSD
Driver current for external pnp High side switch
internally limited
mA
TJ
Operating junction temperature
-40 .. +150
°C
Po
Power dissipation with on board heat sink 2cm
2
1W
VESD
ESD voltage capability ( MIL 883 C )
±2000
V
Note: Current limiter of OUT1 will also protect OUT2 and OUT3 as long as OUT1 is not reverse supplied. Output capacitors up to 100
µF between
OUT and GND will not harm this protection.
THERMAL DATA
Symbol
Parameter
Value
Unit
Rth j-amb
Thermal Resistance Junction to Ambient with on board heatsink
2cm
2
60
°C/W
TJSD
Thermal shutdown junction temperature
>150
°C
OUT1
OUT3
EN3
GND
GND
GND
GND
EN2
OUT2
OUT4
DIAG
GND
GND
GND
GND
HSSD
HSSS
HSON
1
3
2
4
5
6
7
8
9
18
17
16
15
14
12
13
11
19
10
20
VS
EN
D95AU401A
PIN CONNECTION
L4952
2/8
Obsolete
Product(s)
- Obsolete
Product(s)


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