STMICROELECTRONICS TDA8139

TDA8139
5.1V AND ADJUSTABLE VOLTAGE REGULATOR
WITH DISABLE AND RESET
..
.
..
.
..
OUTPUT CURRENTS UP TO 750mA
FIXED PRECISION OUTPUT 1 VOLTAGE
5.1V ± 2%
OUTPUT 2 VOLTAGE PROGRAMMABLE
FROM 2.8 TO 16V
OUTPUT 1 WITH RESET FACILITY
OUTPUT 2 WITH DISABLE BY TTL INPUT
SHORT CIRCUIT PROTECTION AT BOTH
OUTPUTS
THERMAL PROTECTION
LOW DROP OUTPUT VOLTAGE
DESCRIPTION
The TDA8139 is a monolithic dual positive voltage
regulator designed to provide precision output voltages of 5.1V and adjustable at currents up to
750mA.
An internal reset circuit generates a reset pulse
when the output 1 decrease below the regulated
voltage value.
Output 2 can be disabled by TTL input.
Short circuit and thermal protections are included.
SIP9
(Plastic Package)
ORDER CODE : TDA8139
PIN CONNECTIONS
OUTPUT 1
OUTPUT 2
PROGRAM
RESET
GROUND
DISABLE
DELAY CAPACITOR
INPUT 2
INPUT 1
8139-01.EPS
9
8
7
6
5
4
3
2
1
September 1993
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TDA8139
BLOCK DIAGRAM
IN 1
IN 2
1
2
REFERENCE
OUT 1
PROTECTION
9
OUT 1
6
RESET
RESET
3
DELAY
CAPACITOR
DISABLE
4
DISABLE
OUT 2
8
OUT 2
8139-02.EPS
TDA8139
5
Value
20
20
20
Internally Limited
Internally Limited
– 65 to + 150
0 to + 150
Unit
V
V
V
Value
8
130
Unit
°C/W
°C
Unit
V
V
V
mV
mV
mV
mV
mA
V
mV
ms
°C
°C
8139-01.TBL
Parameter
DC Input Voltage Pin 1, 2
Disable Input Voltage Pin 4
Output Voltage at Pin 6
Output Currents
Power Dissipation
Storage Temperature
unction Temperature
8139-02.TBL
Symbol
VIN
VDIS
VRST
IO1, 2
Pt
TSTG
TJ
8139-03.TBL
ABSOLUTE MAXIMUM RATINGS
THERMAL DATA
Symbol
RTH(j-c)
TJ
Parameter
Thermal Resistance Junction-case
Recommended Junction Temperature
Max.
Max.
ELECTRICAL CHARACTERISTICS ( VIN = 7V ; Tj = 25oC unless otherwise specified)
Symbol
VO1
VO2
VIO1, 2
VO1
VO2
VO1
VO2
IQ
VO1RST
VRTH
tRD
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Parameter
Output Voltage
Output Voltage
Dropout Voltage
Line Regulation 1
Line Regulation 2
Load Regulation 1
Load Regulation 2
Quiescent Current
Reset Threshold Voltage
Reset Threshold Hysteresis
Reset Pulse Delay at Pin 6
Test Conditions
IO1 = 10mA
IO2 = 10mA
IO1, 2 = 750mA
7V < VIN1 < 14V, 12V < VIN2 < 18V, @
VO2 : 10V, IO1, 2 = 200mA
5mA < IO1,
2
< 0.6A, @ VO2 = 10 V
IO1 = 10mA, Output 2 Disabled
(K = VO1)
(see circuit description)
Ce = 100nF (see circuit description)
Min.
5
2.8
Typ.
5.1
Max.
5.2
16
1.4
50
100
100
200
2
K – 0.4 K – .25 K – 0.1
20
50
75
25
TDA8139
ELECTRICAL CHARACTERISTICS ( VIN = 7V ; Tj = 25oC unless otherwise specified)
Parameter
Saturation Volt. at Pin 6 in Reset Condition
Leakage Current at Pin 6 in Normal Condition
Output Volt. Thermal Drift
IO1,2 sc
Short Circ. Ouput Current
VDISH
VDISL
IDIS
Vref
Tjsd
Disable Volt. at Pin 4 High (out 2 active)
Disable Volt. at Pin 4 Low (out 2 disabled)
Disable Bias Current at Pin 4
Pin 7
Junction Temp. for Thermal Shut Down
Test Conditions
I5 = 5mA
V5 = 10V
Min.
∆Vo ⋅ 106
∆T ⋅ VO
Tj = 0 to + 125°C
VIN = 7V
VIN = 16V, (see note 1)
Typ.
Max.
0.4
10
Unit
V
µA
ppm/°C
1.6
1
A
A
V
V
µA
V
°C
100
K0 =
2
0V < VDIS < 7V
0.8
2
-100
2.5
145
8139-04.TBL
Symbol
VRL
IRH
KO1,2
Note 1 :
The output short circuit currents are tested one channel at time.
During a short circuit a large consumption of power occurs, but the thermal protection circuit prevents any excessive temperature.
Safe permanent short-circuit is only guaranteed for input voltages up to 16V.
Figure 1
10µA
REF
2.5V
+
-
OUT 1 9
a
-
50
+
b
RESET
6
REG
Ce
8139-03.EPS
3
2.5V 0.6V
Figure 2
5.1V
∆VOUT LOW
4.9V
4.85V
TD
8139-04.EPS
RESET
TD
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TDA8139
CIRCUIT DESCRIPTION
The Reset circuit checks the voltage at the output
1. If this one goes below VOUT - 0.25V (4.85V Typ.),
the comparator "a" (see Figure 1) discharges rapidly the capacitor Ce and the reset output goes at
once low. When the voltage at the OUT 1 rises
above VOUT -0.2V (4.9V Typ.), the voltage VCe
increases linearly to 2.5V corresponding to a delay
Ce ⋅ 2.5V
td following the low : td =
(see figure 2),
10µA
then the reset output goes high again. To avoid
glitches in the reset output, the second comparator
"b" has a large hysteresis (1.9V).
The TDA8139 is a dual voltage regulator with Reset
and Disable.
The two regulation parts are supplied from one
voltage reference circuit trimmed by zener zap
during EWS test. Since the supply voltage of this
last is connected at Pin 1 (VIN1), the regulator 2 will
not work if the Pin 1 is not supplied.
The outputs stages have been realized in darlington configuration with a drop typical of 1.2V.
The disable circuit, switch-off the output 2 if a
voltage lower than 0.8V is applied at pin 4.
TYPICAL APPLICATION
R1 + R2
R1
typ. val R1 = 2.2Ω
VO2 = VREF
RESET
Ce
6
VIN1
1
VIN2
2
0.1µF
3
9
V O1
8
V O2
TDA8139
4
7
C2
DISABLE
C1 to C4 = 10µF
4/5
C4
R2
C3
R1
8139-05.EPS
5
C1
TDA8139
PACKAGE MECHANICAL DATA
9 PINS - PLASTIC SIP
C
L3
D
L1
c2
d1
N
1
9
L
a1
L2
A
M
b1
e3
e
c1
PM-SIP9.EPS
b3
B
A
a1
B
b1
b3
C
c1
c2
D
d1
e
e3
L
L1
L2
L3
M
N
Min.
Millimeters
Typ.
2.7
Max.
7.1
3
24.8
Min.
0.106
0.5
0.85
Inches
Typ.
Max.
0.280
0.118
0.976
0.020
1.6
0.033
3.3
0.43
1.32
0.063
0.130
0.017
0.052
21.2
0.835
14.5
2.54
20.32
0.571
0.100
0.800
3.1
0.122
3
17.6
0.118
0.693
0.25
3.2
1
0.010
SIP9.TBL
Dimensions
0.126
0.039
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility
for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result
from its use. No licence is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics.
Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all
information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life
support devices or systems without express written approval of SGS-THOMSON Microelectronics.
© 1994 SGS-THOMSON Microelectronics - All Rights Reserved
Purchase of I2C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips
I2C Patent. Rights to use these components in a I2C system, is granted provided that the system conforms to
the I2C Standard Specifications as defined by Philips.
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