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TDA8133
5.1V +8V REGULATOR WITH DISABLE AND RESET

. . . . . . . .

ADVANCE DATA

OUTPUT CURRENTS UP TO 0.75A FIXED PRECISION OUTPUT 1 VOLTAGE 5.1V ± 2% FIXED PRECISION OUTPUT 2 VOLTAGE 8V ± 2% 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 TDA8133 is a monolithic dual positive voltage regulator designed to provide fixed precision output voltages of 5.1V and 8V at currents up to 0.75A. 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 in all the versions. PIN CONNECTIONS
9 8 7 6 5 4 3 2 1 Tab. connected to Pin 5

SIP9 (Plastic Package) ORDER CODE : TDA8133

OUTPUT 1 OUTPUT 2 N.C. RESET GROUND DISABLE DEL. CAP. INPUT 2 INPUT 1
8133-01.EPS

March 1994
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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TDA8133
BLOCK DIAGRAM
IN 1
1

IN 2
2

REFERENCE

OUT 1

9

OUT 1

6

PROTECTION

RESET 3

RESET

DELAY CAPACITOR DISABLE 4 DISABLE OUT 2
8

OUT 2

ABSOLUTE MAXIMUM RATINGS
Symbol VIN VDIS VRST IO1, 2 Pt Tstg Tj DC Input Voltage Pin 1 Disable Input Voltage Output Voltage at Pin 6 Output Currents Power Dissipation Storage Temperature Junction Temperature Parameter Value 20 20 20 Internally Limited -65 to +150 0 to +150
o o

Unit V V V

C C

THERMAL DATA
Symbol Rth (j-c) Rth (j-a) Tj Parameter Maximum Thermal Resistance Junction-case Maximum Thermal Resistance Junction-ambient Maximum Recommended Junction Temperature Value 8 60 130 Unit
o o

C/W
o

C

2/5

8133-02.TBL

C/W

8133-01.TBL

Internally Limited

8133-02.EPS

5

TDA8133

TDA8133

ELECTRICAL CHRACTERISTICS (VIN1 = 7V, VIN2 = 10V, Tj = 25oC, unless otherwise specified)
Symbol VO1 VO2 VO1 VO2 VIO1,2 VO1,2LI Output Voltage Output Voltage Output Voltage Output Voltage Dropout Voltage Line Regulation Parameter Test Conditions IO1 = 10mA IO2 = 10mA 7V < VIN1 < 14V 10V < VIN2 < 14V 5mA < IO1,2 < 750mA IO1,2 = 750mA 7V < VIN1 < 14V 10V < VIN2 < 14V IO1,2 = 200mA 5mA < IO1 < 0.6A 5mA < IO2 < 0.6A IO1 = 10mA Output 2 Disabled K = VO1 See circuit description Ce = 100nF See circuit description I5 = 5mA V5 = 10V Tj = 0 to 125 C VO 106 KO = T VO VIN1 = 7V, VIN2 = 10V VIN1,2 = 16V (see Note) 2 0.8 0V < VDIS < 7V -100 145 2
o

Min. 5 7.84 4.9 7.7

Typ. 5.1 8

Max. 5.2 8.16 5.3 8.3 1.4 50 80 100 160 2

Unit V V V V V mV mV mV mV mA V mV ms

VO1,2LO IQ VO1RST VRTH tRD VRL IRH KO1,2

Load Regulation Quiescent Current Reset Thrseshold Voltage Reset Thrseshold Hysteresis Reset Pulse Delay Saturation Voltage in Reset Condition Leakage Current in Normal Condition at Pin 6 Output Voltage Thermal Drift

K - 0.4 20

K0.25 50 25

K - 0.1 75

0.4 10 100

V µA ppm/ C
o

IO1,2SC VDISH VDISL IDIS Tjsd

Short Circuit Output Current Disable Voltage High (out 2 active) Disable Voltage Low (out 2 disabled) Disable Bias Current Junction Temperature for Thermal Shut Down

1.6 1

A A V µA
o
8133-03.TBL

V C

Note : Safe permanent short-circuit is only guaranteed for input voltages up to 16V.

CIRCUIT DESCRIPTION The TDA8133 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 Pin 1 is not supplied. The outputs stage have been realized in darlington configuration with a drop typical 1.2V. The disable circuit, switch-off the output 2 if a voltage lower than 0.8V is applied at Pin 4. 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 out1 rises above VOUT - 0.2V (4.9V typ.), the voltage VCe increases linearly to 2.5V corresponding to a delay Ce 2.5V (see Figure 2), td following the law : t1 = 10µA then the reset output goes high again. To avoid gliches in the reset output, the second comparator "b" has a large hysteresis (1.9V).

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TDA8133
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

TYPICAL APPLICATION
RESET Ce
6 3 9

0.1µF

V IN1 V IN2 C1 C2

1

V O1 V O2 C3 C4

TDA8133
2 5 4 8

C1 to C4 = 10 µF

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8133-05.EPS

DISABLE

8133-04.EPS

8133-03.EPS

TDA8133
PACKAGE MECHANICAL DATA 9 PINS - PLASTIC SIP
L3 D C c2

L1

N M d1
9

L2

a1

1

L

b1 b3 e3 B e c1
PM-SIP9.EPS

Dimensions A a1 B b1 b3 C c1 c2 D d1 e e3 L L1 L2 L3 M N

Min. 2.7

Millimeters Typ.

A

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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