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july 2010 doc 17717 rev 1 1/15 1 L5954 multiple multifunction volt age regulator for car radio features 5 regulators: ? 10 v (350 ma) ? 8.5 v (175 ma) ?5 v (350 ma) ?5 v (250 ma) ? 8 v/10 v (1 a) all regulators are low dropout 3 high side drivers: ?2 a (hsd1) ? 0.45 a (hsd2 and hsd3) no external charge pump capacitors are required standby mode controlled by 3 input pins: ? enable for reg2 and reg3 ?i 2 c bus for reg1, reg4, reg5, hsd1, hsd2, hsd3 individual thermal shutdown independent current limiting short circuit protection load dump protection and overvoltage shutdown esd protected description the L5954 is an integration of three high side drivers and five regulators developed to provide the power for an audio system. the outputs of the ic are controlled via the i 2 c bus and the enable input. external protection must be provided for reverse battery protection. multiwatt15 table 1. device summary order code package packing L5954 multiwatt15 tube www.st.com obsolete product(s) - obsolete product(s)
contents L5954 2/15 doc 17717 rev 1 contents 1 block and pins connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.1 protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.1.1 thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.1.2 current limiting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.1.3 short circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.1.4 overvoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.1.5 write mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.1.6 chip address byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 3.1.7 data byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 obsolete product(s) - obsolete product(s)
L5954 list of tables doc 17717 rev 1 3/15 list of tables table 1. device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 table 2. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 table 3. thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 table 4. electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 table 5. document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 obsolete product(s) - obsolete product(s)
list of figures L5954 4/15 doc 17717 rev 1 list of figures figure 1. block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 figure 2. pins connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 figure 3. definition of timing on the i2c bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 figure 4. typical application circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 figure 5. multiwatt15 (vertical) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . 13 obsolete product(s) - obsolete product(s)
L5954 block and pins connection diagrams doc 17717 rev 1 5/15 1 block and pins connection diagrams figure 1. block diagram figure 2. pins connection (top view) voltage reference reg 1 10v 350ma reg 2 8.5v 175ma reg 3 5v 350ma reg 4 8v/10v 1a reg 5 5v 250ma 8.5 & 5v enable pc output control current limit protection logic individual thermal shutdown overvoltage protection drive 1 2a drive 2 450ma drive 3 450ma reg1 reg2 reg3 reg4 reg5 hsd1 hsd2 hsd3 bat gnd vref enable scl sda d99au1002 1 2 3 4 5 6 7 9 10 11 8 reg2 reg1 vref gnd scl enable sda hsd3 hsd2 bat hsd1 13 14 15 12 reg4 bat reg5 reg3 d99au1006 obsolete product(s) - obsolete product(s)
electrical specifications L5954 6/15 doc 17717 rev 1 2 electrical specifications 2.1 absolute maximum ratings 2.2 thermal data 2.3 electrical characteristics refer to the application circuit, v s = 14.4 v; t amb = 25 c; unless otherwise specified. table 2. absolute maximum ratings symbol parameter value unit v s dc operating supply voltage -0.6 to 26.5 v v s transient supply overvoltages, rise time = 10 ms delay time = 115 ms 34 v v in input voltages (en, sda, scl) -0.6 to 9 v v out output control voltage -0.6 to 6.0 v t op operating temperature range -40 to 85 c t stg storage temperature range -40 to 150 c table 3. thermal data symbol parameter value unit r th j-case thermal resistance junction-to-case 2 c/w table 4. electrical characteristics symbol parameter test condition min. typ. max. unit i q,st-by standby quiescent curr ent all outputs off, v bat = 14 v - - 2 a i q maximum quiescent current v bat = 14 v, i reg1 = 350 ma, i reg2 = 175 ma, i reg3 = 350 ma, i reg4 = 1 a, i reg5 = 250 ma, i hsd1 = 2 a, i hsd2,3 = 450 ma - - 150 ma i en enable input current v bat = 14 v, enable 2 v v bat = 14 v, enable 0.8 v -10 - 10 a v il , v ih enable threshold voltage v bat = 14 v, v il v bat = 14 v, v ih 2 - 0.8 v 10 v / 350 ma reg 1 output v reg1 output voltage i reg1 = 350 ma 11 v v cc 16 v 9.50 10 10.5 v obsolete product(s) - obsolete product(s)
L5954 electrical specifications doc 17717 rev 1 7/15 v line line regulation 11 v v cc 26 v (measure v reg1 across v cc range) --55mv v load load regulation 5 ma i reg1 350 ma - - 55 mv v dropout dropout voltage (measure v bat - v reg1 when v reg1 drops 0.1 v) (measure v bat - v reg1 when v reg1 drops 0.1 v) i reg1 = 350 ma i reg1 = 5 ma -- 900 300 mv mv i lim1 current limit - 0.51 - 1.1 a svr ripple rejection f o = 1 khz, v bat = 14 v with 1vpp ac i reg1 = 175 ma 50 - - db 8.5 v / 175 ma reg 2 output v reg2 output voltage i reg2 = 175 ma 9.5 v vb at 16 v 8.0 8.5 9.0 v v line line regulation 9.5 v v bat 26 v (measure v reg2 across v bat range) --50mv v load load regulation 5 ma i reg2 175ma - - 50 mv v dropout dropout voltage (measure v bat - v reg2 when v reg2 drops 0.1 v) i reg2 = 175 ma i reg2 = 5 ma -- 900 300 mv mv i lim2 current limit - 280 - 525 ma svr ripple rejection f o = 1 khz, v bat = 14 v with 1 vpp ac i reg2 = 100 ma 50 - - db 5 v / 350 ma reg 3 output v reg3 voltage offset from v ref - - 10 40 mv v line line regulation 7 v v bat 26 v (measure v reg3 across v bat range) --50mv v load load regulation 5 ma i reg3 350 ma - - 100 mv v dropout dropout voltage (measure v bat - v reg3 when v reg3 drops 0.1v) (measure v bat - v reg3 when v reg3 drops 0.1 v) i reg3 = 175 ma i reg3 = 5 ma -- 950 600 mv mv i lim3 current limit - 0.5 - 1 a svr ripple rejection f o = 1 khz, v bat = 14 v with 1 vpp ac, i reg3 = 175 ma 50 - - db table 4. electrical characteristics (continued) symbol parameter test condition min. typ. max. unit obsolete product(s) - obsolete product(s)
electrical specifications L5954 8/15 doc 17717 rev 1 8/10 v/1 a reg 4 output v reg4 output voltage i reg4 = 1 a b5 = 0 b5 = 1 7.6 9.50 8 10 8.4 10.5 v v v line line regulation 11 v v bat 26 v, b5 = 1 (measure v reg2 across v bat range) --50mv v load load regulation 5 ma i reg4 1 a - - 150 mv v dropout dropout voltage (measure v bat - v reg2 when v reg2 drops 0.1 v) i reg4 = 1 a i reg4 = 5 ma -- 950 600 mv mv i lim4 current limit - 1.3 - 2.4 a svr ripple rejection f o = 1 khz, v bat = 14 v with 1 vpp ac, i reg4 = 500 ma 50 - - db 5 v/250 ma reg 5 output v reg5 output voltage i reg5 = 250 ma 4.6 5 5.4 v v line line regulation 7 v v bat 26 v (measure v reg5 across v bat range) --40mv v load load regulation 5 ma i reg5 250 ma - - 100 mv v dropout dropout voltage (measure v bat - v reg5 when v reg5 drops 0.1 v) i reg5 = 250 a i reg5 = 5 ma -- 1.6 1.2 v v i lim5 current limit - 320 - 700 ma svr ripple rejection f o = 1 khz, v bat = 14 v with 1vpp ac, i reg5 = 125 ma 50 - - db 2 a hsd1 v sat output saturation voltage i hsd1 = 1 a continuous time operation --0.5v i leak1 output leakage current all driver outputs are off -50 - 50 a i lim current limiting r hsd1 = 0.5 2.4 - 4 a table 4. electrical characteristics (continued) symbol parameter test condition min. typ. max. unit obsolete product(s) - obsolete product(s)
L5954 electrical specifications doc 17717 rev 1 9/15 0.45a hsd2 and hsd3 v sat output saturation voltage i hsd2,3 = 300 ma continuous time operation --0.6v i leak2,3 output leakage current all driver outputs are off -50 - 50 a i lim current limiting r hsd2,3 = 0.5 0.56 - 1 a characteristics for i 2 c v il low level input voltage - - - 1.5 v v ih high level input voltage - 3 - - v v hys input hysteresis - 0.2 - - v v ol1 v ol2 low level output sink current = 3 ma sink current = 6 ma -- 0.4 0.6 v v i i input current 0.4 v v i 0.9 v ddmax -10 - 10 a f scl scl clock frequency - - - 400 khz table 4. electrical characteristics (continued) symbol parameter test condition min. typ. max. unit obsolete product(s) - obsolete product(s)
functional description L5954 10/15 doc 17717 rev 1 3 functional description the three high side drivers are a 2.0 a output (hsd1), and two 450 ma outputs (hsd2 and 3). the five regulator outputs are a 10 v at 350 ma (reg1), an 8.5 v at 175 ma (reg2), a 5 v at 350 ma (reg3), an 8 v/1 0v at 1 a (reg4), and 5 v at 250 ma (reg5). the regulators are low dropout. the regulators will operate with output capacitors with esr of 0.1 to 5 . reg3 is referenced from the vref input not the internal bandgap. this is done to minimize the voltage offset between individual 5 v supplies. the reg2 and reg3 outputs are turned on and off with the enable input, a '1' turns the outputs on and a '0' turns them off. when enable is "1", the other outputs can be independently controlled via the i 2 c bus. when a given regulator is turned off it must be guaranteed to be lower than 0.2 v. the output voltage of reg4 is selected via bit 5 of the i 2 c data byte: 8 v is the output voltage if bit5 = '0' while 10 v is the output voltage when bit5 = '1'. when all outputs are turned off the total current draw must be minimized. i 2 c will run at a clock speed range of 100 khz to 400 khz. this device should be capable of operating at any frequency within this range. 3.1 protection the L5954 can survive under the following conditions: shorting the outputs to bat and gnd, loss of bat, loss of ic gnd, double batter y, esd, 34v load dump. L5954 will not handle a reverse battery condition. external components must be implemented for reverse battery protection. 3.1.1 thermal shutdown reg1, reg2, reg3, reg4, reg5 outputs shutdown at 160 c and return to normal operation at 130 c. the hsd2 and hsd3 shutdown at 160 c and return to normal operation at 130 c. the hsd1 with go into thermal shutdown at 170 c and returns to operation at 120 c. 3.1.2 current limiting each voltage regulator will contai n its own current protection. 3.1.3 short circuit if the outputs are short circuited, the ic will go into curren t limiting and ev entually the thermal shutdown will kick in. curren t limiting will not disable the outputs. obsolete product(s) - obsolete product(s)
L5954 functional description doc 17717 rev 1 11/15 3.1.4 overvoltage the ic will not operate if the bat vo ltage reaches 27 v typ. or above. figure 3. definition of timing on the i 2 c bus. figure 4. typical application circuit. 3.1.5 write mode s = start condition - sda goes from high to low while scl is high a = acknowledge - the device being written to , pulls down on data line (sda) during the acknowledge clock pulse. p = stop condition - sda goes from low to high while scl is high. t bup ps p sda scl sr t low t r t f t hd;dat t hd;dat t su;dat t su;sta t hd;sta t su;sto d99au1007 t sp t high fbatt vref c14 10 f c12 10 f c10 10 f c8 10 f c6 10 f 1000 f 0.1 f en reg5 reg4 reg3 reg2 reg1 reg5 hsd1 enable bat vref scl sda gnd reg4 reg3 hsd2 hsd3 hsd1 hsd2 hsd3 d99au1010a reg2 reg1 (*) esr of output capacitors should be between 0.1 and 5.0 . chip address data byte s 0 a a .. .. p msb lsb msb lsb obsolete product(s) - obsolete product(s)
functional description L5954 12/15 doc 17717 rev 1 3.1.6 chip address byte 3.1.7 data byte default mode is 0000 0000 which corresponds to all outputs being off, low power mode. bit 5 controls the output voltage of reg4. a '0' corresponds to 8 v and a '1' corresponds to 10 v. chip address read/write a7 a6 a5 a4 a3 a2 a1 a0 0001000 0 data byte reg1 r4 10v reg4 reg5 hsd1 hsd2 hsd3 b7 b6 b5 b4 b3 b2 b1 b0 x obsolete product(s) - obsolete product(s)
L5954 package information doc 17717 rev 1 13/15 4 package information 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. figure 5. multiwatt15 (vertical) mechanical data and package dimensions outline and mechanical data 0016036 j dim. mm inch min. typ. max. min. typ. max. a5 0.197 b 2.65 0.104 c 1.6 0.063 d 1 0.039 e 0.49 0.55 0.019 0.022 f 0.66 0.75 0.026 0.030 g 1.02 1.27 1.52 0.040 0.050 0.060 g1 17.53 17.78 18.03 0.690 0.700 0.710 h1 19.6 0.772 h2 20.2 0.795 l 21.9 22.2 22.5 0.862 0.874 0.886 l1 21.7 22.1 22.5 0.854 0.87 0.886 l2 17.65 18.1 0.695 0.713 l3 17.25 17.5 17.75 0.679 0.689 0.699 l4 10.3 10.7 10.9 0.406 0.421 0.429 l7 2.65 2.9 0.104 0.114 m 4.25 4.55 4.85 0.167 0.179 0.191 m1 4.73 5.08 5.43 0.186 0.200 0.214 s 1.9 2.6 0.075 0.102 s1 1.9 2.6 0.075 0.102 dia1 3.65 3.85 0.144 0.152 multiwatt15 (vertical) obsolete product(s) - obsolete product(s)
revision history L5954 14/15 doc 17717 rev 1 5 revision history table 5. document revision history date revision changes 09-jul-2010 1 initial release. obsolete product(s) - obsolete product(s)
L5954 doc 17717 rev 1 15/15 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. ? 2010 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 - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com obsolete product(s) - obsolete product(s)

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