1/4 rev. a structure silicon monolithic integrated circuits product series bipolar stepping motor driver type bd6380efv function ? pwm constant current controllable two h bridge driver ? power save mode ? reference voltage output ? low on resistance dmos absolute maximum ratings (ta=25 ) item symbol limit unit supply voltage vcc v cc -0.2 +7.0 v supply voltage vm v m -0.2 +15.0 v power dissipation pd 1.1 1 w 4.0 2 w input voltage for control pin v in -0.2 (v cc +0.3) v rnf maximum voltage v rnf 0.5 v maximum output current i out 0.8 3 a/ch operating temperature range t opr -25 +75 storage temperature range t stg -55 +150 junction temperature t jmax 150 1 70mm 70mm 1.6mm glass epoxy board. derating in done at 8.8mw/ for operating above ta=25 2 4-layer recommended board. derating in done at 32.0mw/ for operating above ta=25 . 3 do not exceed pd, aso. operating conditions (ta=-25 +75 ) item symbol min. typ. max. unit supply voltage vcc v cc 2.5 3.3 5.5 v supply voltage vm v m 4.0 6.0 13.5 v input voltage for control v in 0 - v cc v output current (dc) i out - 0.3 0.5 4 a/ch 4 do not exceed pd, aso. this product isn?t designed for protection against radioactive rays.
2/4 rev. a electrical characteristics (unless otherwise specified ta=25 ? vcc=3.3v ? vm=6.0v) item symbol limit unit conditions min. typ. max. whole vcc current at standby i ccst - 0 10 a ps=l vcc current i cc - 1.6 3.0 ma ps=h, vlimx=0.5v vm current at standby i vmst - 0 10 a ps=l vm current i vm - 0.08 0.50 ma ps=h, vlimx=0.5v control input (ps, in 1a, in1b, in2a, in2b) h level input voltage v inh 2.0 - 3.3 v l level input voltage v inl 0 - 0.8 v h level input current i inh 15 30 60 a v in =3v l level input current i inl -10 0 - a v in =0v output (out1a, out1b, out2a, out2b) output on resistance r on - 1.2 1.5 i out = 0.3a, vm=6v sum of upper and lower output leak current i leak - - 10 a current control rnfx input current i rnf -40 -20 - a rnfx=0v sensex input current i sense -2.0 -0.1 - a sensex=0v vlimx input current i vlim -2.0 -0.1 - a vlimx=0v vlimx input voltage range v vlim 0 - 0.5 v comparator offset voltage v ofs -10 - 10 mv noise cancel time t n 0.3 0.7 1.2 s r=39k , c=1000pf vref voltage v vref 0.97 1.00 1.03 v i vref =0~1ma input-output logic table input output ps in1a in2a in1b in2b out1a out2a out1b out2b l x x open open all circuit standby h l l open open standby h h l h l forward h l h l h backward h h h l l brake x: h or l
3/4 rev. a package outline block diagram pin no. / pin name pin no. pin name pin no. pin name 1 gnd 13 rnf2 2 ps 14 out2b 3 vlim1 15 out2a 4 sense1 16 vm2 5 cr1 17 nc 6 in1a 18 in2b 7 in1b 19 in2a 8 nc 20 cr2 9 vm1 21 sense2 10 out1a 22 vlim2 11 out1b 23 vref 12 rnf1 24 vcc nc : non connection bd6380 lot no. product no. htssop-b24 (unit:mm) vm1 vlim2 cr2 vcc in1 a in1b cr1 in2 a in2b vlim1 out1b sense1 rnf1 vm2 out2a sense2 out2b rnf2 out1a predriver current limit comp. 9 cr timer current limit comp. cr timer predriver tsd uvlo gnd 20 6 7 5 19 18 11 4 12 15 21 14 13 10 vref 23 ps 2 logic 22 3 vref ocp 24 1 16
4/4 rev. a operation notes (1) absolute maximum ratings an excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can break down the devices, thus ma king impossible to identify breaking mode, such as a short circuit or an open circuit. if any over rated values will expect to exceed the absolute maximum ratings, consider adding circuit protection devices, such as fuses. (2) power supply lines as return of current regenerated by back emf of motor happens, take steps such as putting capacitor between power supply and gnd as an electric pathway fo r the regenerated current. be sure that there is no problem with each property such as emptied capacity at lower temperature regarding electrolytic capacitor to decide capacity value. if the connected power supply does not have sufficient current absorption capacity, regenerative current will cause the vo ltage on the power supply line to rise, which combined with the product and its peripheral circuitry may exceed the absolute maximum ratings. it is recommended to implement a physical safety measure such as the insertion of a voltage clamp diode between the power supply and gnd pins. (3) gnd potential the potential of gnd pin must be minimu m potential in all operating conditions. (4) thermal design use a thermal design that allows for a sufficient margin in light of the power dissipation (pd) in actual operating conditions. this ic exposes its frame of the ba ckside of package. note that this part is assumed to use after providing heat dissipation treatment to improve heat dissipation efficiency . try to occupy as wide as possible with heat dissipation pattern not onl y on the board surface but also the backside. (5) actions in strong electromagnetic field use caution when using the ic in the presence of a strong electromagnetic field as doing so may cause the ic to malfunction. (6) aso when using the ic, set the output transistor so that it does not exceed absolute maximum ratings or aso. (7) thermal shutdown circuit the ic has a built-in thermal shutdown circuit (tsd circuit). if the chip temperature becomes tjmax=150 , and higher, coil output to the motor will be open. the tsd ci rcuit is designed only to shut the ic off to prevent runaway thermal operation. it is not designed to protec t or indemnify peripheral equipment. do not use the tsd function to protect peripheral equipment. (8) ground wiring pattern when using both small signal and large current gnd patte rns, it is recommended to isolate the two ground patterns, placing a single ground point at the ground potential of application so that the pattern wiring resistance and voltage variations caused by large current s do not cause variations in the small signal ground voltage. be careful not to change the gnd wiring pattern of any external components, either.
r1120 a www.rohm.com ? 2011 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specied herein is subject to change for improvement without notice. the content specied herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. great care was taken in ensuring the accuracy of the information specied in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no responsibility for such damage. the technical information specied herein is intended only to show the typical functions of and examples of application circuits for the produc ts. rohm does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by rohm and other parties. rohm shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. the products specied in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, ofce-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specied in this document are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possibility of physical injury, re or any other damage caused in the event of the failure of any product, such as derating, redundancy, re control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel- controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intended to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specied herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law.
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