View TC78H610FNG_8508081.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

TC78H610FNG 2014 - 3 - 24 1 toshiba c d mos integrated circuit silicon monolithic t c78h61 0 f ng dual h - bridge driver ic the t c78h610fng is a dual h- bridge driver ic for dc motors which incorporates dmos in output transis tors. the TC78H610FNG is capable of driving 2 dc brushed motors or 1 stepping motor . features ? power supply voltage for motor v m =1 8 v ( absolute maximum ratings ) ? power supply voltage for control v cc = 6 v ( absolute maximum ratings ) ? output current i out = 1.0 a ( absolute maximum ratings ) ? output on resistance ron (upper and lower sum) =1.2 ( typ. ) ? internal pull - down resistors on inputs 200k ( typ. ) ? built - in over current detection (isd), thermal shutdwon (tsd) circuit, and under voltage lockout (uvlo) circuit. ? small package ssop16(0 .65mm pitch ) ? built - in cross conduction protection circuit this product has a mos structure and is sensitive to electrostatic discharge. when handling this product, ensure that the environment is protected against electrostatic discharge by using an earth strap, a conductive mat and an ionizer . ensure also that the ambient temperature and relative humid ity are maintained at reasonable levels. * the ic should be installed correctly. otherwise, the ic or peripheral parts and devices may be degraded or permanently damaged. ssop 16-p- 225- 0.65b weight: 0.07 g( typ. )
TC78H610FNG 2014 - 3 - 24 2 block diagram * please note that in the block diagram, functional blocks or constants may be omitted or simplified for explanatory purposes . isd in1a in2a in1b in2b predriver h - bridge b bo1 bo 2 g nd predriver h - bridge a a o1 a o 2 vm gnd tsd /stby uvlo motor control logic vcc uvlo gnd
TC78H610FNG 2014 - 3 - 24 3 pin functions p in no. pin name f unctional description remarks 1 nc not connected please do not connect any pattern 2 nc not connected please do not connect any pattern 3 in2a control input pin for ach (2) see the input/output functions table. 4 in1a control input pin for ach (1) see the input/output functions table. 5 vcc power supply pin for logic block v cc =2.7 to 5.5v 6 /stby standby input see the input/output functions table. 7 in2b control input pin for bch (2) see the input/output functions table. 8 in1b control input pin for bch (1) see the input/output functions table. 9 vm power supply pin for output v m = 2.5 to 1 5 .0 v 10 bo2 output pin of b phase (2) please connect with a motor. 11 gnd ground pin 12 bo1 output pin of b phase (1) please connect with a motor. 13 ao2 ou tput pin of a phase (2) please connect with a motor. 14 gnd ground pin 15 ao1 output pin of a phase (1) please connect with a motor. 16 gnd ground pin equivalent input circuit input pin ( in1a , in 2a , in1b , in2b , stby ) output pin (ao1,ao2,bo1,bo2) please note that in the equivalent input circuit, functional blocks or constants may be omitted or simplified for explanatory purposes. 200k v m ao1,bo1 ao2,bo2
TC78H610FNG 2014 - 3 - 24 4 pin assignment (top view ) vm bo2 in1b in2b / stby vcc in1a in2a nc nc gnd bo1 ao2 gnd ao1 gnd
TC78H610FNG 2014 - 3 - 24 5 absolute maximum ratings (ta = 25c) characteristics symbol rating unit power supply voltage v cc 6 v v m 18 v output current i out 1.0 a input voltage v in - 0.2 to v cc +0.2 v power dissipation p d 0. 5 ( note 1) w 0. 78 ( note 2) operation temperature t opr - 20 to 85 c st orage temperature t stg - 55 to 150 c note 1: ic only note 2: when mounted on a glass epoxy board (50 mm 50 mm 1.6 mm, cu area: 40 %) the absolute maximum ratings of a semiconductor device are a set of specified parameter values that must not be excee ded during operation, even for an instant. if any of these ratings are exceeded during operation, the electrical characteristics of the device may be irreparably altered, in which case the reliability and lifetime of the device can no longer be guaranteed. moreover, any exceeding of the ratings during operation may cause breakdown, damage and/or degradation in other equipment. applications using the device should be designed so that no absolute maximum rating s will ever be exceeded under any operating condi tion. operating range (ta = - 20 to 85c) characteristics symb ol conditions min typ. max unit controlled power supply voltage v cc D 2.7 3.3 5.5 v motor power supply voltage v m D 2.5 5 1 5 v output current i out D D D 0.8 a input voltage v in D D D 5.5 v control logic frequency f pwm in1a, in2a, in1b, in2b d uty50% condition 1 D 5 00 khz maximum current is limited by power dissipation. it depends on the ambient temperature, excitation mode, and heat radiation of the board.
TC78H610FNG 2014 - 3 - 24 6 electrical characteristics (ta=25 c, v cc =3.3v, v m =5v, unless otherwise specified.) characteristics symbol test condition min typ. max unit input voltage v in(h) in1a, in1b, in2a, in2b, / stby 2 .0 D 5.5 v v in(l) - 0.2 D 0.8 v hysteresis voltage v in(h ys) in1a, in1b, in2a, in2b, / stby D 200 D mv input current i in(h) v in = 3.3v 11 16.5 22 a i in(l) v in = gnd 2 4 8 a consumption current i cc1 stop mode in1a = in1b= in2 a=in2b =l D 0.5 1 ma i cc2 forward/reverse mode n1a = in1b=l, in2 a=in2b = h D 0.5 1 ma i cc3 standby mode /stby=l D 0 1 a i m1 stop mode in1a = in1b= in2 a=in2b =l D 0.25 1 ma i m2 forward/reverse mode n1a = in1b=l, in2 a=in2b = h D 0.25 1 ma i m3 standby mode /stby=l D 0 1 a drain - source on - resistance (the sum of high side & low side) r on (u+l) i out = 0.2 a D 1.2 1.6 i out = 0.6 a D 1. 2 1.6 diode forward voltage v fu i out = 0.6 a D 1 1.2 v v fl D 1 1.2 output leakage current upper i oh v m =15v D D 1 a lower i ol D D 1
TC78H610FNG 2014 - 3 - 24 7 ( reference ) p d C ta characteristics * the above - characteristics is a reference value and is not a gu aranteed (1) when mounted on the board, pcb area 50 mm 3 0 mm 1.6 mm cu area 40% (2) ic only j- a = 250 c/w power dissipation p d (w) ambient air temperature t a ( c )
TC78H610FNG 2014 - 3 - 24 8 input/output functions input output / stby in1 a/in1b in2 a/in2b a o1 /bo1 a o2 /bo2 mo de h h h l l short brake h l h l h forward/reverse h h l h l reverse/forward h l l off (high impedance) stop l off (high impedance) standby output waveform timing chart (voltage waveform) ac electrical characteristics (referenc e ) symbol typical value unit t plh 500 ns t phl 500 t r 20 t f 20 * t he above - characteristics is a reference value and is not a gu aranteed timing charts may be simplified for explanatory purpose. output ( ao1, ao2, bo1, bo2 ) 90 10 50 t plh t r 50 t phl 90 10 t f input ( in1a,in2a,in1b,in2b )
TC78H610FNG 2014 - 3 - 24 9 explanation of operation to h - bridge to prevent shoot - through current caused by simultaneous conduction of upper and lower transistors in the output stage, a dead time is internally generated when switching the upper and lower transistors. therefore, synchronous rectification for high efficiency in control can be achieved without an off - time that is generated via an ext ernal input. a dead time (t2, t4) is a reference value. in1a=h,in2a=l t5 v m m gnd a o1 v m m gnd in1a=h,in2a=h t3 a o1 v m m gnd in1a=h,in2a=l t1 ao 1 v m m gnd in1a= h,in2a=l in1a=h,in2a=h t2 = 300 ns ( typ. ) a o1 v m m gnd in1a=h,in2a=h in1a=h,in2a=l t4 = 300 ns ( typ. ) a o1 gnd v m output voltage (ao1) t1 t2 t3 t5 t4
TC78H610FNG 2014 - 3 - 24 10 tsd (thermal shut down) w hen the junction temperature (t j ) exceeds 170c (typ.) , all outputs are turned off. in the operating state of tsd, ic becomes stop mod e (it is the same as the state of in1a/in1b=in2a/in2b=l conditions). when the junction temperature (t j ) falls by 40 c(typ.) or more, it returns to the normal mode. * the operative temperature and release temperature of the tsd are a reference value, and a re not a guaranteed performance. isd (over current detection ) when any of current which flows in o utput transistors exceeds 1.7 a (typ.), all outputs are turned off. in the operating state of i sd, ic becomes stop mode (it is the same as the state of in1a/ in1b=in2a/in2b=l conditions). however, masking time of 4s ( typ.) should be added in order to avoid detection error by the noise. by reboot or l input to a /stby pin , it returns to normal operation. * the actuating current and masking term of the isd ar e a reference value, and are not a guaranteed value . uvlo ( under voltage lockout ) when v cc falls to less than 2.2v (typ.) , all outputs are turned off . in the operating state of uvlo , ic becomes stop mode (it is the same as the state of in1 a/in1b=in2a/in2b=l conditions). by raising v cc more than 2.3v (typ.) , it returns to the normal mode. when v m falls to less than 2. 0 v (typ.) , all outputs are turned off . in the operating state of uvlo , ic becomes stop mode (it is the same as the state of in 1a/in1b=in2a/in2b=l conditions). by raising v m more than 2. 1 v (typ.) , it returns to the normal mode. * the operating voltage and release voltage of the uvlo are a reference value, and are not a guaranteed value. output current 1.7a (typ . ) masking time 4 s(typ.) output off
TC78H610FNG 2014 - 3 - 24 11 application circuit when driving 2 dc br ushed motors when driving stepping motor note 1: a power supply capacitor should be connected as close as possible to the ic. note 2: please set in1 and in2 or /stby as l at the time of power supply on and off. if power supply on and off is carried out in the state of h setup, unexpected current may be flown in the output pin depending on the situation. v m controller i/o vcc /stby in1a in2a vm ao1 ao2 bo2 bo1 + - v cc in1b in2b gnd gnd gnd tc78h6 1 0fng dc brush motor dc brush motor v m controller i/o vcc /stby in1a in2a vm ao1 ao2 bo2 bo1 + - v cc in1b in2b s tepping motor gnd gnd gnd tc78h6 1 0fng 0.1 f 10 f 0.1 f 10 f
TC78H610FNG 2014 - 3 - 24 12 caution for using utmost care is necessary in the design of the output, v cc , and gnd lines since the ic may be destroyed by short - circuiting between outputs, air contamination fa ults, or faults due to improper grounding, or by short - circuiting between contiguous pins. especially, power supply pins (v cc, v m ) and output pins (ao1, ao2, bo1, and bo2) might destroy the ic and the peripheral parts, cause smoke and ignition, and also d o injury when they short - circuit an adjacent pin and other pins. the ic may be destroyed when mounted in the wrong orientation. thus, please mount it with great care. please use the power supply fuse.
TC78H610FNG 2014 - 3 - 24 13 package dimensions weight: 0.07 g ( typ. )
TC78H610FNG 2014 - 3 - 24 14 notes on contents 1. block diagrams some of the functional blocks, circuits, or constants in the block diagram may be omitted or simplified for explanatory purposes. 2. equivalent circuits the equivalent circuit diagrams may be simplified or some pa rts of them may be omitted for explanatory purposes. 3. timing charts timing charts may be simplified for explanatory purposes. 4. application circuits the application circuits shown in this document are provided for reference purposes only. thorough ev aluation is required, especially at the mass production design stage. toshiba does not grant any license to any industrial property rights by providing these examples of application circuits. 5. test circuits components in the test circuits are used only to obtain and confirm the device characteristics. these components and circuits are not guaranteed to prevent malfunction or failure from occurring in the application equipment. ic usage considerations notes on handling of ics [1 ] the absolute maximum ra tings of a semiconductor device are a set of ratings that must not be exceeded, even for a moment. do not exceed any of these ratings. exceeding the rating(s) may cause the device breakdown, damage or deterioration, and may result injury by explosion or co mbustion. [2 ] use an appropriate power supply fuse to ensure that a large current does not continuously flow in case of over current and/or ic failure. the ic will fully break down when used under conditions that exceed its absolute maximum ratings, when the wiring is routed improperly or when an abnormal pulse noise occurs from the wiring or load, causing a large current to continuously flow and the breakdown can lead smoke or ignition. to minimize the effects of the flow of a large current in case of bre akdown, appropriate settings, such as fuse capacity, fusing time and insertion circuit location, are required. [3 ] if your design includes an inductive load such as a motor coil, incorporate a protection circuit into the design to prevent device malfunct ion or breakdown caused by the current resulting from the inrush current at power on or the negative current resulting from the back electromotive force at power off. ic breakdown may cause injury, smoke or ignition. use a stable power supply with ics wit h built - in protection functions. if the power supply is unstable, the protection function may not operate, causing ic breakdown. ic breakdown may cause injury, smoke or ignition. [4] do not insert devices in the wrong orientation or incorrectly. make sur e that the positive and negative terminals of power supplies are connected properly. otherwise, the current or power consumption may exceed the absolute maximum rating, and exceeding the rating(s) may cause the device breakdown, damage or deterioration, an d may result injury by explosion or combustion. in addition, do not use any device that is applied the current with inserting in the wrong orientation or incorrectly even just one time.
TC78H610FNG 2014 - 3 - 24 15 points to remember on handling of ics (1) over current protection ci rcuit over current protection circuits (referred to as current limiter circuits) do not necessarily protect ics under all circumstances. if the o ver current protection circuits operate against the over current, clear the over current status immediately. depending on the method of use and usage conditions, such as exceeding absolute maximum ratings can cause the over current protection circuit to not operate properly or ic breakdown before operation. in addition, depending on the method of use and usage co nditions, if over current continues to flow for a long time after operation, the ic may generate heat resulting in breakdown. (2) thermal shutdown circuit thermal shutdown circuits do not necessarily protect ics under all circumstances. if the thermal sh utdown circuits operate against the over temperature, clear the heat generation status immediately. depending on the method of use and usage conditions, such as exceeding absolute maximum ratings can cause the thermal shutdown circuit to not operate proper ly or ic breakdown before operation. (3) heat radiation design in using an ic with large current flow such as power amp, regulator or driver, please design the device so that heat is appropriately radiated, not to exceed the specified junction temperature (t j ) at any time and condition. these ics generate heat even during normal use. an inadequate ic heat radiation design can lead to decrease in ic life, deterioration of ic characteristics or ic breakdown. in addition, please design the device taking into considerate the effect of ic heat radiation with peripheral components. (4) back - emf when a motor rotates in the reverse direction, stops or slows down abruptly , a current flow back to the motor s power supply due to the effect of back - emf. if the current sink capability of the power supply is small, the device s motor power supply and output pins might be exposed to conditions beyond a bsolute maximum ratings. to avoid this problem, take the effect of back - emf into consideration in system design.
TC78H610FNG 2014 - 3 - 24 16 restricti ons on product use ? toshiba corporation, and its subsidiaries and affiliates (collectively "toshiba"), reserve the right to make changes to the i nformation in this document, and related hardware, software and systems (collectively "product") without notic e. ? this document and any information herein may not be reproduced without prior written permission from toshiba. even with toshiba's written permission, reproduction is permissible only if reproduction is without alteration/omission. ? though toshiba wor ks continually to improve product's quality and reliability, product can malfunction or fail. customers are responsible for complying with safety standards and for providing adequate designs and safeguards for their hardware, softwar e and systems which min imize risk and avoid situations in which a malfunction or failure of product could cause loss of human life, bodily injury or damage to property, including data loss or corruption. before customers use the product, create designs including t he product, or incorporate the product into their own applications, customers must also refer to and comply with (a) the latest versions of all relevant toshiba information, including without limitation, this document, the specifications, the data sheets and applic ation notes for product and the precautions and conditions set forth in the "toshiba semiconductor reliability handbook" and (b) the instructions for the application with which the product will be used with or for. customers are solely responsible for all as pect s of their own product design or applications, including but not limited to (a) determining the appropriateness of the use of this produ ct in such design or applications; (b) evaluating and determining the applicability of any information contained in this document, or in charts, diagrams, programs, algorithms, sample application circuits, or any other referenced documents; and (c) validating all operat ing parameters for such designs and applications. toshiba assumes no liability for customers' product desi gn or applications. ? product is neither intended nor warranted for use in equipments or systems that require extraordinarily high levels of quality and/or reliability, and/or a malfunction or failure of which may cause loss of human life, bodily injury, s erious property damage and/or serious public impact ( " unintended use " ). except for specific applications as expressly stated in this document, unintended use includes, without limitation, equipment used in nuclear facilities, equipment used in the aerospac e industry, medical equipment, equipment used for automobiles, trains, ships and other transportation, traffic signaling equipment, equipment used to control combustions or ex plosions, safety devices, elevators and escalators, devices related to electric p ower, and equipment used in finance - related fields. if you use product for unintended use, toshiba assumes no liability for product. for details, please contact your toshiba sales representative. ? do not disassemble, analyze, reverse - engineer, alter, modi fy, translate or copy product, whether in whole or in part. ? product shall not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited unde r any applicable laws or regulations. ? the information contained her ein is presented only as guidance for product use. no responsibility is assumed by toshiba for any infringement of patents or any other intellectual property rights of third parties that may result from the use of product. n o license to any intellectual pr operty right is granted by this document, whether express or implied, by estoppel or otherwise. ? absent a written signed agreement, except as provided in the relevant terms and conditions of sale for product, and to the maximum extent allowable by law, to shiba (1) assumes no liability whatsoever, including without limitation, indirect, consequential, special, or incidental damages or loss, including without limitation, loss of profits, loss of opportunities, business interruption and loss of data, and (2) disclaims any and all express or implied warranties and conditions related to sale, use of product , or information, including warranties or conditions of merchantability, fitness for a particular purpose, accuracy of information, or noninfringement. ? do not use or otherwise make available product or related software or technology for any military purp oses, including without limitation, for the design, development, use, stockpiling or manufacturing of nuclear, chemical, or biological weapons or mis sile technology products (mass destruction weapons). product and related software and technology may be con trolled under the applicable export laws and regulations including, without limitation, the japanese foreign exchange and foreign trade law and the u.s. export administration regulations. export and re - export of product or related software or technology ar e strictly prohibited except in compliance with all applicable export laws and regulations. ? please contact your toshiba sales representative for details as to environmental matters such as the rohs compatibility of pr oduct. please use product in complian ce with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the eu rohs directive. toshiba assumes no liability for damages or losse s occurring as a resul t of noncompliance w ith app licable laws and reg ulations.

▲Up To Search▲

Price & Availability of TC78H610FNG

	To Download TC78H610FNG Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .