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march 2009 rev 2 1/14 1 TDA8133 +5.1 v and +8 v dual voltage regulator with disable and reset functions features input voltage range: 7 v to 18 v output currents up to 750 ma fixed precision output 1 voltage: 5.1 v 2% fixed precision output 2 voltage: 8 v 2% output 1 with reset function output 2 with disable function by ttl input short-circuit protection at both outputs thermal protection low dropout voltage description the TDA8133 and the TDA8133d are monolithic dual positive voltage regulators designed to provide fixed precision output voltages of 5.1 v and 8.0 v for currents up to 750 ma. an internal reset circuit generates a reset pulse when the voltage of output 1 drops below the regulated voltage value. output 2 can be disabled via the ttl input. short-circuit and thermal protections are included in all versions. figure 1. TDA8133 and TDA8133d table 1. device summary order code packaging TDA8133 tray TDA8133d tray sip9 (plastic package) dip16 (8 + 8) 9 8 7 6 5 4 3 2 1 output1 output2 ntbc 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 ntbc output2 output1 ground ground ground ground ground ground ground ground 10 9 tab is connected to ground www.st.com obsolete product(s) - obsolete product(s)
contents TDA8133 2/14 contents 1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 application diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 power dissipation and layout i ndications . . . . . . . . . . . . . . . . . . . . . . . . 9 6 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.1 environmentally-friendly packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 7 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 obsolete product(s) - obsolete product(s)
TDA8133 description 3/14 1 description figure 2. TDA8133 block diagram figure 3. TDA8133d block diagram 1 regulator 1 2 8 regulator 2 6 9 reference 7 4 input1 input2 disable output1 output2 reset delay capacitor ntbc ground 5 3 protection ntbc: not to be connected 1 regulator 1 2 7 regulator 2 5 8 reference 6 4 input1 input2 disable output1 output2 reset delay capacitor ntbc ground 3 protection pins 9 to 16 ntbc: not to be connected obsolete product(s) - obsolete product(s)
electrical characteristics TDA8133 4/14 2 electrical characteristics table 2. absolute maximum ratings symbol parameter value unit v in dc input voltage at pins input1 and input2 20 v v dis disable input voltage at pin disable 20 v v rst output voltage at 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 table 3. thermal data symbol parameter value unit r thjc thermal resistance (junction-to-case) TDA8133 TDA8133d 9 15 c/w r thja thermal resistance (1) (junction-to-ambient) 1. mounted on board. for more information, refer to section 5 . TDA8133 TDA8133d 50 56 c/w t j maximum recommended junction temperature 140 c t oper operating free air temperature range 0 to +70 c table 4. electrical characteristics symbol parameter test conditions min. typ. max. unit v o1 output voltage i o1 = 10 ma 55.15.2v v o2 output voltage i o2 = 10 ma 7.84 8.00 8.16 v v io1,2 dropout voltage i o1,2 = 750 ma 1.4 v v o1,2li line regulation 7v < v in1 < 14 v 10 v < v in2 < 14 v i o1,2 = 200 ma 50 80 mv v o1,2lo load regulation 5ma < i o1 < 600 ma 5ma < i o2 < 600 ma 100 160 mv i q quiescent current i o1 = 10 ma, output2 disabled 2ma 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 obsolete product(s) - obsolete product(s)
TDA8133 electrical characteristics 5/14 note: t amb =25c, v in1 = 7 v, v in2 = 10 v, unless otherwise specified. v rl saturation voltage in reset condition i reset = 5 ma 0.4 v i rh leakage current in normal condition v 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 = 7 v, v in2 = 10 v v in1,2 = 16 v (1) 1.6 1.0 a v dish disable voltage when pin disable is high (output2 active) 2v v disl disable voltage when pin disable is low (output2 disabled) 0.8 v i dis disable bias current 0 v < v dis < 7 v -100 2 a t jsd junction temperature for thermal shutdown 145 c 1. the output short-circuit currents are te sted one channel at time. during a short- circuit, a large consumption of power occurs, but the thermal protection circuit prevents any excessive temper atures. a safe permanent s hort-circuit pr otection is only guaranteed for input voltages up to 16 v. table 4. electrical characteristics (continued) symbol parameter test conditions min. typ. max. unit k 0 v 0 10 6 ? tv 0 ? --------------------------- = obsolete product(s) - obsolete product(s)
circuit description TDA8133 6/14 3 circuit description the TDA8133 and the TDA8133d are dual-voltage regulators with reset and disable functions. the two regulation parts are supplied from a single voltage reference circuit trimmed by zener zapping during ews testing. since the supply voltage of this voltage reference is connected to pin input1 (v in1 ), the second regulator will not work if pin input1 is not supplied. the output stages are designed using a darlington configuration with a typical dropout voltage of 1.2 v. the disable circuit will switch off pin output2 if a voltage less than 0.8 v is applied to pin disable . the reset circuit checks the voltage at pin output1. if this voltage drops below v o1 - 0.25 v (4.85 v typ.), the "a" comparator ( figure 4 ) rapidly discharges the external capacitor (ce) and the reset output immediately switches to low. when the voltage at pin output1 exceeds v o1 - 0.2 v (4.9 v typ.), the v ce voltage increases linearly to the reference voltage (v ref = 2.5 v) corresponding to a reset pulse delay (t rd ) as shown in figure 5 . afterwards, the reset output returns to high. to avoid glitches in the reset output, the second comparator "b" has a large hysteresis (1.9 v). figure 4. reset diagram t rd c e 2.5v 10 a -------------------------- - = output1 reg v ref - + 50 a + - ce v ref 0.6v b reset 10 a 3 v ref = 2.5 v obsolete product(s) - obsolete product(s)
TDA8133 circuit description 7/14 figure 5. internal reset diagram reset k v rth v o1rst t rd t rd v o1 power on power off k = actual value of v o1 obsolete product(s) - obsolete product(s)
application diagrams TDA8133 8/14 4 application diagrams figure 6. TDA8133 typical application figure 7. TDA8133d typical application 6 3 5 2 1 reset ce 0.1 f c1 c2 c3 c4 disable c1 to c4 = 10 f output1 output2 input1 input2 9 8 7 reset delay capacitor disable ntbc ground 4 v o1 v o2 v in1 v in2 5 3 2 1 reset ce 0.1 f c1 c2 c3 c4 disable c1 to c4 = 10 f output1 output2 input1 input2 8 7 6 reset delay capacitor disable ntbc ground 4 v o1 v o2 v in1 v in2 pins 9 to 16 obsolete product(s) - obsolete product(s)
TDA8133 power dissipatio n and layout indications 9/14 5 power dissipation and layout indications the power is mainly dissipated by the two device buffers. it can be calculated by the equation: p = (v in1 -v o1 ) x i o1 + (v in2 -v o2 ) x i o2 the following table lists the different r thja values of these packages with or without a heat sink and the corresponding maxi mum power dissipation assuming: maximum ambient temperature = 70 c maximum junction temperature = 140 c figure 8. thermal resistance (junction-to-a mbient) for dip16 package without heatsink figure 9. metal plate mounted near the TDA8133d for heatsinking table 5. power dissipation device heat sink r thja in c/w p max in w TDA8133 no 50 1.4 ye s 2 0 3 . 5 TDA8133d no 56 to 40 1.25 to 1.75 ye s 3 2 2 . 2 copper area (cm2) (35 m plus solder) board is face-down to optimize the thermal conductivity of the copper layer and the exchanges with the air, the solder must cover the maximum amount of this area 60 rthja c/w 40 50 10 12 0 55 45 24 8 6 test board with ?on board? square heat sink area to p v i ew bottom view obsolete product(s) - obsolete product(s)
package mechanical data TDA8133 10/14 6 package mechanical data figure 10. 9-pin plastic single in-line package table 6. 9-pin plastic single in-line package dimensions dim. mm inches min. typ. max. min. typ. max. a 7.1 0.280 a1 2.7 3 0.106 0.118 b24.8 0.976 b1 0.5 0.020 b3 0.85 1.6 0.033 0.063 c3.3 0.130 c1 0.43 0.017 c2 1.32 0.052 d21.2 0.835 d1 14.5 0.571 e2.54 0.100 e3 20.32 0.800 l 3.1 1.122 l1 3 0.116 l2 17.6 0.693 obsolete product(s) - obsolete product(s)
TDA8133 package mechanical data 11/14 figure 11. 16-pin plastic dual in-line package, 300 mil width l3 0.25 0.010 m3.2 0.126 n1 0.039 table 6. 9-pin plastic single in-l ine package dimensions (continued) dim. mm inches min. typ. max. min. typ. max. table 7. 16-pin plastic dual in-line package dimensions dim. mm inches min. typ. max. min. typ. max. a 5.33 0.210 a1 0.38 0.015 a2 2.92 3.30 4.95 0.115 0.130 0.195 b 0.36 0.56 0.014 0.022 b2 1.52 1.78 0.060 0.070 c 0.20 0.25 0.36 0.008 0.010 0.014 d 18.67 19.18 19.69 0.735 0.755 0.775 e 2.54 0.100 e1 6.10 6.35 7.11 0.240 0.250 0.280 l 2.92 3.30 3.81 0.115 0.130 0.150 obsolete product(s) - obsolete product(s)
package mechanical data TDA8133 12/14 6.1 environmentally-friendly packages in order to meet environmental requirements, st offers these devices in different grades of ecopack? packages, depending on their level of environmental compliance. ecopack specifications, grade definitions and product status are available at: www.st.com. ecopack is an st trademark. obsolete product(s) - obsolete product(s)
TDA8133 revision history 13/14 7 revision history table 8. document revision history date revision changes march 1994 1.0 first issue july 2001 1.1 datasheet update and addition of dip16 package august 2001 1.2 general update; disable pin renamed disable (function remains unchanged) september 2001 1.3 thermal data updated october 2001 1.4 thermal data updated. figure 2 and figure 3 updated 05-mar-2009 2 preliminary banner removed, template updated and section 6.1 added obsolete product(s) - obsolete product(s)
TDA8133 14/14 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by an authorized st representative, st products are not recommended, authorized or warranted for use in milita ry, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2009 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com obsolete product(s) - obsolete product(s)

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