SGS Thomson Microelectronics TDA8137 Datasheet
DUAL 5. 1V REG ULATOR WI TH DISABL E AND RESE T
.
OUTPUT CURRENTS UP TO 1A
.
FIXED PRECISION OUTPUT VOLTAGES
5.1V ± 2%
.
OUTPUT 1 WITH RESE T FACILITY
.
OUTPUT 2 WITH DISABLE BY TTL INPUT
.
SHORT CIRCUIT PROTECTION AT BOTH
OUTPUTS
.
THERMAL PROTE CT ION
.
LOW DROP OUTPUT VOLTAGE
DESCRIPTION
The TDA8137 is a monolithic dual positive v oltage
regulator designed to provide fixed precision output
voltages of 5.1V at currents up to 1A.
An internal reset circuit generates a reset pulse
when the output 1 decreases below the regulated
voltage value.
Output 2 can be disabled by TTL input.
Short circuit and thermal protections are included.
TDA8137
HEPTAWATT
(Plastic Package)
ORDER CODE : TDA8137
PIN CONNECTION (top view)
Tab connected to Pin 4
7
6
5
4
3
2
1
OUTPUT 1
OUTPUT 2
RESET
GROUND
DISABLE
DELAY CAP
INPUT
8137-01.EPS
September 1993
1/5
TDA8137
BLOCK DIAGRAM
IN
1
REFERENCE
PROTECTION
3
DISABLE
4
OUT 1
RESET
OUT 2
TDA8137
OUT 1
7
5
RESET
2
DELAY
CAPACITOR
6
OUT 2DISABLE
C
R
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
V
V
I
01, 2
T
IN
DIS
RST
P
STG
T
DC Input Voltage Pin 1 20 V
Disable Input Voltage Pin 3 20 V
Output Voltage at Pin 5 20 V
Output Currents Internally Limited
Power Dissipation Internally Limited
t
Storage Temperature – 65 to + 150 °C
Junction Temperature 0 to + 150 °C
j
8137-02.EPS
8137-04.TBL
THERMAL DA TA
Symbol Parameter Value Unit
R
TH(j-c)
T
ELECTRICAL CHARACT E RIS TICS (V
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
01, 2
V
I 01, 2
∆ V
01, 2LI
∆ V
01, 2LO
I
Q
V
01RST
V
RTH
t
RD
V
RL
2/5
Thermal Resistance Junction-case Max. 3 °C/W
Recommended Junction Temperature Max. 0 to + 150 °C
j
= 7V ; Tj = 25oC unless otherwise specified)
IN
Output Voltage I
Dropout Voltage I
Line Regulation 7V < VIN < 14V, I
Load Regulation 5mA < I
= 10mA 5 5.1 5.2 V
01, 2
7V < V
I
< 14V, 5mA < I0 < 750mA 4.9 5.3 V
IN
= 750mA 1.4 V
01, 2
= 1A 2 V
01, 2
= 200mA 50 mV
01, 2
< 0.6A 100 mV
01, 2
Quiescent Current I01 = 10mA, Output 2 Disabled 2 mA
Reset Threshold Voltage (K = V01) K–0.4 K–.25 K–0.1 V
Reset Threshold Hysteresis (see circuit description) 20 50 75 mV
Reset Pulse Delay at Pin 5 Ce = 100nF (see circuit description) 25 ms
Saturation Volt. at Pin 5 in
I5 = 5mA 0.4 V
Reset Condition
8137-02.TBL
8137-03.TBL
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