PRELIMINARY DATA
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
September 2003
1/13
TDA8139/D
Double (5.1V and Adjustable) Voltage Regulator
with Reset and Disable Functions
FEATURES
s
Input Voltage Range: 7 V to 18 V
s
Output Currents up to 750 mA
s
Fixed Precision Output 1 Voltage: 5.1 V 2%
s
Adjustable Output 2 Voltage: 2.8 to 16 V
s
Output 1 with Reset Function
s
Output 2 with Disable Function by TTL Input
s
Short-Circuit Protection at both Outputs
s
Thermal Protection
s
Low Dropout Voltage
DESCRIPTION
The TDA8139 and the TDA8139D are monolithic
dual positive voltage regulators designed to provide
a fixed precision output voltage of 5.1 V and an
adjustable voltage between 2.8 and 16 V for
currents up to 750 mA.
An internal reset circuit generates a reset pulse
when the voltage of OUTPUT1 drops below the
regulated voltage value.
OUTPUT2 can be disabled via the TTL input.
Short-circuit and thermal protections are included in
all versions.
SIP9 (Plastic Package)
ORDER CODE: TDA8139
DIP16 (8 + 8)
ORDER CODE: TDA8139D
9
8
7
6
5
4
3
2
1
OUTPUT1
OUTPUT2
PROGRAM
RESET
GROUND
DISABLE
DELAY CAPACITOR
INPUT2
INPUT1
1
2
3
4
5
6
7
8
11
12
13
14
15
16
INPUT1
INPUT2
DELAY CAPACITOR
DISABLE
RESET
PROGRAM
OUTPUT2
OUTPUT1
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
GROUND
10
9
Tab is connected to GROUND
TDA8139/D
2/13
TABLE OF CONTENTS
Chapter 1
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Chapter 2
ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.1
Absolute Maximum Ratings ................................................................................................ 4
2.2
Thermal Data ...................................................................................................................... 4
2.3
Electrical Characteristics ...................................................................................................... 4
Chapter 3
CIRCUIT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Chapter 4
APPLICATION DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Chapter 5
POWER DISSIPATION AND LAYOUT INDICATIONS . . . . . . . . . . . . . . . . . . . . . .9
Chapter 6
PACKAGE MECHANICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Chapter 7
REVISION HISTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
3/13
TDA8139/D
GENERAL INFORMATION
1
GENERAL INFORMATION
Figure 1: TDA8139 Block Diagram
Figure 2: TDA8139D Block Diagram
1
Regulator 1
2
8
Regulator 2
6
9
Reference
7
4
INPUT1
INPUT2
DISABLE
OUTPUT1
OUTPUT2
RESET
DELAY CAPACITOR
PROGRAM
GROUND
5
3
Protection
1
Regulator 1
2
7
Regulator 2
5
8
Reference
6
4
INPUT1
INPUT2
DISABLE
OUTPUT1
OUTPUT2
RESET
DELAY CAPACITOR
PROGRAM
GROUND
3
Protection
Pins 9 to 16
ELECTRICAL CHARACTERISTICS
TDA8139/D
4/13
2
ELECTRICAL CHARACTERISTICS
2.1
Absolute Maximum Ratings
2.2
Thermal Data
2.3
Electrical Characteristics
T
AMB
= 25 C, V
IN1
= 7 V, V
IN2
= 10 V, unless otherwise specified.
Symbol
Parameter
Value
Unit
V
IN
DC Input Voltage on pins INPUT1 and INPUT2
20
V
V
DIS
Disable Input Voltage
20
V
V
RST
Output Voltage on pin RESET
20
V
I
O1,2
Output Currents
Internally Limited
P
t
Power Dissipation
Internally Limited
T
STG
Storage Temperature
-65 to +150
C
T
J
Junction Temperature
0 to +150
C
Symbol
Parameter
Value
Unit
R
thJC
Thermal Resistance (Junction-to-
Case)
TDA8139
TDA8139D
9
15
C/W
R
thJA
Thermal Resistance
1
(Junction-to-Ambient)
1. Mounted on board. For more information, refer to
Section 5
.
TDA8139
TDA8139D
50
56
C/W
T
J
Maximum Recommended Junction Temperature
140
C
T
OPER
Operating Free Air Temperature Range
0 to +70
C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
O1
Output Voltage
I
O1
= 10 mA
5
5.1
5.2
V
V
O2
Output Voltage
I
O2
= 10 mA
2.8
16.0
V
V
IO1,2
Dropout Voltage
I
O1,2
= 750 mA
1.4
V
V
O1,2LI
Line Regulation
7 V < V
IN1
< 14 V
12 V < V
IN2
< 18 V
I
O1,2
= 200 mA, V
O2
= 10 V
50
100
mV
V
O1,2LO
Load Regulation
5 mA < I
O1
< 600 mA
5 mA < I
O2
< 600 mA
V
O2
= 10 V
100
200
mV
5/13
TDA8139/D
ELECTRICAL CHARACTERISTICS
I
Q
Quiescent Current
I
O1
= 10 mA, OUTPUT2 Disabled
2
mA
V
O1RST
Reset Threshold Voltage
K = V
O1
, V
IN1
7 V
K - 0.4
K - 0.25
K - 0.1
V
V
RTH
Reset Threshold Hysteresis
See circuit description.
20
50
75
mV
t
RD
Reset Pulse Delay
C
e
= 100 nF
See circuit description.
25
ms
V
RL
Saturation Voltage in Reset Condition I
RESET
= 5 mA
0.4
V
I
RH
Leakage Current in Normal Condition
I
RESET
= 10 V
10
A
K
O1, 2
Output Voltage Thermal Drift
T
J
= 0 to + 125C
100
ppm/C
I
O1,2SC
Short Circuit Output Current
V
IN1,2
= 7 V
V
IN1,2
= 16 V
1
1.6
1.0
A
V
DISH
Disable Voltage High (OUT2 active)
2
V
V
DISL
Disable Voltage Low (OUT2 disabled)
0.8
V
I
DIS
Disable Bias Current
0 V < V
DIS
< 7 V
-100
2
A
V
REF
Reference Voltage at PROGRAM Pin
2.5
V
T
JSD
Junction Temperature for Thermal
Shutdown
145
C
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 temperatures. A safe permanent
short-circuit protection is only guaranteed for input voltages up to 16 V.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
K
0
V
0
10
6
T V
0
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