SGS Thomson Microelectronics TDA8132 Datasheet
5.1V +12V DISABLE VOLTAGE REGULATOR
.
OUTPUTCURRENTS UP TO 1A
.
FIXED PRECISION OUTPUT 1 VOLTAGE
5.1V +/-2%
.
FIXED PRECISION OUTPUT 2 VOLTAGE
12V +/- 2%
.
OUTPUT1 WITHDISABLE BY TTLINPUT
.
OUTPUT2 WITHDISABLE BY TTLINPUT
.
SHORT CIRCUIT PROTECTION AT BOTH
OUTPUTS
.
THERMAL PROTECTION
.
LOW DROP OUTPUTVOLTAGE
TDA8132
HEPTAWATT
(Plastic Package)
DESCRIPTION
The TDA8132is a monolithicdualpositive voltage
regulatordesignedto providefixedprecisionoutput
voltagesof 5.1V and12V at currents up to 1A.
Each output can be disabledseparately by a TTL
input.
Short circuitand thermalprotectionsare included.
PINCONNECTIONS
7
6
5
4
3
2
1
Tab. connected to Pin4
ORDER CODE : TDA8132
OUTPUT1
OUTPUT2
DISABLE FOR OUTPUT 1
GROUND
DISABLE FOR OUTPUT 2
INPUT 2
INPUT1
8132-01.EPS
January 1996
1/4
TDA8132
BLOCK DIAGRAM
INPUT 1 INPUT 2
12
REFERENCE
PROTECTION DISABLE
DISABLE
3
DISABLE
CIRCUITDESCRIPTION
TheTDA8132is a dualvoltageregulatorwithseparate Disablefor each output.
The two regulation parts are supplied from one
voltage reference circuit trimmed by zener zap
during EWS test.
Sincethesupplyvoltageof thislast isconnectedat
Pin 1 (V
), theregulator 2will not work if Pin 1 is
IN1
OUTPUT1
OUTPUT 2
7
OUTPUT1
5
DISABLE
6
OUTPUT2
TDA8132
4
not supplied.
The outputsstagehave beenrealized in darlington
configurationwith a drop typical 1.2V.
For each output a disable circuit switches-off this
output if a voltage lower than 0.8V is applied at
corresponding Pin (Pin 3 for output 2, Pin 5 for
output 1).
8132-02.EPS
ABSOLUTEMAXIMUMRATINGS
Symbol Parameter Value Unit
V
V
I
O1, 2
P
T
T
IN
DIS
stg
DC Input Voltage Pin 1 20 V
Disable Input Voltage Pins 3-5 20 V
Output Currents Internally Limited
Power Dissipation Internally Limited
t
Storage Temperature -65, +150
Junction Temperature 0, +150
j
THERMALDATA
Symbol Parameter Value Unit
Maximum Thermal ResistanceJunction-case 3
Maximum Recommended Junction Temperature 130
j
2/4
R
th (j-c)
T
o
o
o
C/W
o
C
C
8132-01.TBL
C
8132-02.TBL
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