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 SIP9 (Plastic Package) 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. ORDER CODE : TDA8133 9 8 OUTPUT 1 OUTPUT 2 7 6 N.C. 5 RESET GROUND 4 DISABLE 3 2 DEL. CAP. INPUT 2 1 INPUT 1 8133-01.EPS PIN CONNECTIONS Tab. connected to Pin 5 March 1994 This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without notice. 1/5 TDA8133 BLOCK DIAGRAM IN 1 IN 2 1 2 OUT 1 REFERENCE PROTECTION 9 OUT 1 6 RESET RESET 3 DELAY CAPACITOR DISABLE OUT 2 5 8 OUT 2 TDA8133 8133-02.EPS DISABLE 4 Symbol Value Unit VIN DC Input Voltage Pin 1 Parameter 20 V VDIS Disable Input Voltage 20 V VRST Output Voltage at Pin 6 20 V IO1, 2 Output Currents Internally Limited Power Dissipation Internally Limited Pt Tstg Tj Storage Temperature Junction Temperature -65 to +150 o 0 to +150 o C C 8133-01.TBL ABSOLUTE MAXIMUM RATINGS THERMAL DATA 2/5 Parameter Value Unit Rth (j-c) Maximum Thermal Resistance Junction-case 8 o Rth (j-a) Maximum Thermal Resistance Junction-ambient 60 o Tj Maximum Recommended Junction Temperature 130 C/W C/W o C 8133-02.TBL Symbol TDA8133 ELECTRICAL CHRACTERISTICS (VIN1 = 7V, VIN2 = 10V, Tj = 25oC, unless otherwise specified) Min. Typ. Max. Unit VO1 Output Voltage IO1 = 10mA 5 5.1 5.2 V VO2 Output Voltage IO2 = 10mA 7.84 8 8.16 V VO1 Output Voltage 4.9 5.3 V VO2 Output Voltage 7V < VIN1 < 14V 10V < VIN2 < 14V 5mA < IO1,2 < 750mA 7.7 8.3 V VIO1,2 Dropout Voltage IO1,2 = 750mA 1.4 V VO1,2LI Line Regulation 7V < VIN1 < 14V 10V < VIN2 < 14V IO1,2 = 200mA 50 80 mV mV VO1,2LO Load Regulation 5mA < IO1 < 0.6A 5mA < IO2 < 0.6A 100 160 mV mV Quiescent Current IO1 = 10mA Output 2 Disabled 2 mA Reset Thrseshold Voltage K = VO1 K0.25 K - 0.1 V 50 75 mV IQ VO1RST Parameter Test Conditions K - 0.4 Reset Thrseshold Hysteresis See circuit description tRD Reset Pulse Delay Ce = 100nF See circuit description VRL Saturation Voltage in Reset Condition I5 = 5mA 0.4 V IRH Leakage Current in Normal Condition at Pin 6 V5 = 10V 10 µA KO1,2 Output Voltage Thermal Drift Tj = 0 to 125 C ∆VO ⋅ 106 KO = ∆T ⋅ VO IO1,2SC Short Circuit Output Current VIN1 = 7V, VIN2 = 10V VIN1,2 = 16V (see Note) VDISH Disable Voltage High (out 2 active) VDISL Disable Voltage Low (out 2 disabled) VRTH IDIS Disable Bias Current Tjsd Junction Temperature for Thermal Shut Down 20 25 o ms o 100 ppm/ C 1.6 1 2 0V < VDIS < 7V A A V -100 145 0.8 V 2 µA 8133-03.TBL Symbol o 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). 3/5 TDA8133 Figure 1 10µA REF 2.5V + - OUT 1 9 a - 50 + b RESET 6 REG Ce 8133-03.EPS 3 2.5V 0.6V Figure 2 5.1V ∆Vout LOW 4.9V 4.85V TD TD 8133-04.EPS RESET TYPICAL APPLICATION RESET 0.1µF Ce 6 V IN1 3 1 9 V O1 8 V O2 TDA8133 C1 2 C2 5 4 C3 DISABLE C1 to C4 = 10 µF 4/5 C4 8133-05.EPS V IN2 TDA8133 PACKAGE MECHANICAL DATA 9 PINS - PLASTIC SIP C L3 D L1 c2 d1 N 1 9 L a1 L2 A M e PM-SIP9.EPS b1 b3 e3 c1 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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