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WITH DISABLE AND RESET
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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. PIN CONNECTIONS
SIP9 (Plastic Package) ORDER CODE : TDA8139
9 8 7 6 5 4 3 2 1
OUTPUT 1 OUTPUT 2 PROGRAM RESET GROUND DISABLE DELAY CAPACITOR INPUT 2 INPUT 1
September 1993
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8139-01.EPS
TDA8139
BLOCK DIAGRAM
IN 1 1 IN 2 2
REFERENCE
OUT 1
9
OUT 1
6
PROTECTION
RESET
RESET
3 DELAY CAPACITOR DISABLE 4
DISABLE OUT 2
8
OUT 2
5
ABSOLUTE MAXIMUM RATINGS
Symbol VIN VDIS VRST IO1, 2 Pt TSTG TJ 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 Value 20 20 20 Internally Limited Internally Limited 65 to + 150 0 to + 150 Unit V V V
°C °C
THERMAL DATA
Max. Max.
8139-02.TBL 8139-03.TBL
Symbol RTH(j-c) TJ
Parameter Thermal Resistance Junction-case Recommended Junction Temperature
Value 8 130
Unit °C/W °C
ELECTRICAL CHARACTERISTICS ( VIN = 7V ; Tj = 25oC unless otherwise specified)
Symbol VO1 VO2 VIO1, 2 VO1 VO2 VO1 VO2 IQ VO1RST VRTH tRD 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)
Max. 5.2 16 1.4 50 100 100 200 2 K 0.4 K .25 K 0.1 20 50 75 25
Min. 5 2.8
Typ. 5.1
Unit V V V mV mV mV mV mA V mV ms
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8139-01.TBL
8139-02.EPS
TDA8139
TDA8139
ELECTRICAL CHARACTERISTICS ( VIN = 7V ; Tj = 25oC unless otherwise specified)
Symbol VRL IRH KO1,2 Parameter Saturation Volt. at Pin 6 in Reset Condition Leakage Current at Pin 6 in Normal Condition Output Volt. Thermal Drift Test Conditions I5 = 5mA V5 = 10V K0 = Vo 106 T VO Tj = 0 to + 125°C VIN = 7V VIN = 16V, (see note 1) 2 0V < VDIS < 7V -100 2.5 145 0.8 2 Min. Typ. Max. 0.4 10 Unit V µA ppm/°C
100
IO1,2 sc VDISH VDISL IDIS Vref Tjsd
Short Circ. Ouput Current 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
1.6 1
A A V V µA V °C
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 3 REG Ce b RESET 6
+ -
+
2.5V 0.6V
Figure 2
5.1V 4.9V 4.85V VOUT LOW
RESET
TD
TD
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8139-04.EPS
8139-03.EPS
8139-04.TBL
TDA8139
CIRCUIT DESCRIPTION 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
RESET Ce 6 3 0.1µF
R1 + R2 R1 typ. val R1 = 2.2 VO2 = VREF
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).
VIN1 VIN2
1
9
V O1 V O2 C4
TDA8139
2 8
5 C1 C2
4
7 C3
R2
DISABLE
R1
8139-05.EPS
C1 to C4 = 10µF
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TDA8139
PACKAGE MECHANICAL DATA 9 PINS - PLASTIC SIP
L3
D
C c2
L1
N M
d1
9
L2
a1
1
L
b1 b3 e3 B
PM-SIP9.EPS
e
A
c1
Dimensions A a1 B b1 b3 C c1 c2 D d1 e e3 L L1 L2 L3 M N
Min. 2.7
Millimeters Typ.
Max. 7.1 3 24.8 1.6
Min. 0.106
Inches Typ.
Max. 0.280 0.118 0.976 0.063
0.5 0.85 3.3 0.43 1.32 21.2 14.5 2.54 20.32 3.1 3 17.6 0.25 3.2 1 0.122 0.033
0.020 0.130 0.017 0.052 0.835 0.571 0.100 0.800 0.118 0.693 0.010 0.126 0.039
SIP9.TBL
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. SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
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