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| 1/17 www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. reversible motor driv ers for brush motors 1.0a reversible motor drivers (single motor) ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y description the reversible motor driver for output 1.0a for 1 motor c an set the output modes to four modes, normal, reverse, stop (idling), and braking in accordance with logic input (2 inputs). features 1) built-in surge absorption diode 2) by built-in power save circuit, current cons umption when a motor stops (idles) can be suppressed 3) output voltage can be optionally set by reference voltage setting pin 4) built-in thermal shutdown circuit (tsd) applications audio-visual equipment; pc peripherals; car audios; car navigation systems; oa equipments absolute maximum ratings (ta=25 , all voltages are with respect to ground) parameter symbol ratings unit ba6956an ba6287f ba6285fs ba6285afp-y ba6920fp-y supply voltage vcc 18 18 18 30 36 v supply voltage vm 18 18 18 30 36 v output current i omax 1* 1 1* 1 1* 1 1* 1 1* 1 a operating temperature t opr -20 ~ 75 -20 ~ 75 -20 ~ 75 -40 ~ 85 -30 ~ 85 storage temperature t stg -55 ~ 150 -55 ~ 150 -55 ~ 150 -55 ~ 150 -55 ~ 150 power dissipation pd 1.19* 2 0.689* 3 0.813* 4 1.45* 5 1.45* 5 w junction temperature t jmax 150 150 150 150 150 *1 do not, exceed pd or aso. *2 sip9 package. derated at 9.5mw/ above 25 . *3 sop8 package. mounted on a 70mm x 70mm x 1.6mm fr4 glass- epoxy board with less than 3% copper foil. derated at 5.52mw/ above 25 . *4 ssop-a16 package. mounted on a 70mm x 70mm x 1.6mm fr4 glas s-epoxy board with less than 3% copper foil. derated at 6.5mw/ above 25 . *5 hsop25 package. mounted on a 70mm x 70mm x 1.6mm fr4 glass-epoxy board with less than 3% copper foil. derated at 11.6mw/ above 25 . operating conditions (ta=25 ) parameter symbol ratings unit ba6956an ba6287f ba6285fs ba6285afp-y ba6920fp-y supply voltage vcc 6.5 ~ 15 4.5 ~ 15 4.5 ~ 15 4.5 ~ 24 6.5 ~ 34 v supply voltage vm 6.5 ~ 15 4.5 ~ 15 4.5 ~ 15 4.5 ~ 24 6.5 ~ 34 v vref voltage vref < vcc, vm < vcc, vm < vcc, vm < vcc, vm < vcc, vm v no.11008ebt02
technical note 2/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. technical note 3/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. technical note 4/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. 7.0 7.5 8.0 8.5 0 0.2 0.4 0.6 0.8 1 output current: iout [a] output high voltage: voh [v] _ 75c 25c -20c 4 6 8 10 12 6 1218243036 supply voltag e: vcc [v] circuit current: icc2 [ma] _ - 30c 25c 85c 7.5 8.0 8.5 9.0 0 0.2 0.4 0.6 0.8 1 output current: iout [a] output high voltage: voh [v] _ 75c 25c -20c 15 20 25 30 35 4 8 12 16 20 24 supply voltag e: vcc [v] circuit current: icc1 [ma] _ - 40c 25c 85c 20 30 40 50 60 70 4 8 12 16 20 24 supply voltag e: vcc [v] circuit current: icc2 [ma] _ - 40c 25c 85c 2 4 6 8 6 1218243036 supply voltag e: vcc [v] circuit current: icc1 [ma] _ - 30c 25c 85c 40 45 50 55 60 6 9 12 15 supply voltag e: vcc [v] supply current: icc2 [ma] _ - 25c 25c 75c 40 45 50 55 60 4 8 12 16 supply voltag e: vcc [v] supply current: icc2 [ma] _ - 20c 25c 75c 20 25 30 35 40 6 9 12 15 supply voltag e: vcc [v] circuit current: icc1 [ma] _ - 20c 25c 75c 20 25 30 35 40 6 9 12 15 supply voltag e: vcc [v] supply current: icc1 [ma] _ -20c 25c 75c 10 15 20 25 30 4 8 12 16 supply voltag e: vcc [v] circuit current: icc1 [ma] _ -20c 25c 75c 40 50 60 70 80 6 9 12 15 supply voltag e: vcc [v] circuit current: icc2 [ma] _ - 20c 25c 75c fig.1 supply current 1 (forward) fig.2 supply current 2 (brake) fig.3 supply current 1 (forward) (ba6956an) (ba6956an) (ba6287f) fig.4 supply current 2 (brake) fig.5 supply cu rrent 1 (forward) fig.6 supply current 2 (brake) (ba6287f) (ba6285fs) (ba6285fs) fig.7 supply current 1 (forward) fig.8 supply current 2 (brake) fig.9 supply current 1 (forward) (ba6285afp-y) (ba6285afp-y) (ba6920fp-y) fig.10 supply current 2 (brake) fig.11 ou tput high voltage fig.12 output high voltage (ba6920fp-y) (ba6956an) (ba6287f) technical note 5/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. 0.0 0.5 1.0 1.5 0 25 50 75 100 125 150 ambient temperature [c] pd [w] i) 0.563w ii) 0.689w ii) mounted on rohm standard pcb (70mm x 70mm x 1.6mm fr4 glass-epoxy board) i) package only 0 1 2 3 0 25 50 75 100 125 150 ambient temperature [c] pd [w] i)0.85w ii)1.45w ii) mounted on rohm standard pcb (70mm x 70mm x 1.6mm fr4 glass-epoxy board) i) package only 0.0 0.5 1.0 1.5 0 25 50 75 100 125 150 ambient temperature [c] pd [w] ii) 0.813w ii) mounted on rohm standard pcb (70mm x 70mm x 1.6mm fr4 glass-epoxy board) i) package only i) 0.625w 0.0 0.2 0.4 0.6 0.8 1.0 0 0.2 0.4 0.6 0.8 1 output current: iout [a] output low voltage: vol [v] _ 85c 25c -40c 0.0 0.3 0.6 0.9 1.2 1.5 0 0.2 0.4 0.6 0.8 1 output current: iout [a] output low voltage: vol [v] _ 85c 25c -30c 0.0 0.5 1.0 1.5 0 25 50 75 100 125 150 ambient temperature [c] pd [w] i) 1.19w i) package only 0.0 0.2 0.4 0.6 0.8 1.0 0 0.2 0.4 0.6 0.8 1 output current: iout [a] output low voltage: vol [v] _ 75c 25c -20c 0.0 0.2 0.4 0.6 0.8 1.0 0 0.2 0.4 0.6 0.8 1 output current: iout [a] output low voltage: vol [v] _ 75c 25c -20c 0.0 0.2 0.4 0.6 0.8 1.0 0 0.2 0.4 0.6 0.8 1 output current: iout [a] output low voltage: vol [v] _ 75c 25c -20c 7.5 8.0 8.5 9.0 0 0.2 0.4 0.6 0.8 1 output current: iout [a] output high voltage: voh [v] _ 75c 25c -20c 7.5 8.0 8.5 9.0 0 0.2 0.4 0.6 0.8 1 output current: iout [a] output high voltage: voh [v] _ 85c 25c -40c 7.0 7.5 8.0 8.5 9.0 0 0.2 0.4 0.6 0.8 1 output current: iout [a] output high voltage: voh [v] _ 85c 25c -30c fig.13 output high voltage fig.14 output high voltage fig.15 output high voltage (ba6285fs) (ba6285afp-y) (ba6920fp-y) fig.16 output low voltage fig.17 output low voltage fig.18 output low voltage (ba6956an) (ba6287f) (ba6285fs) fig.19 output low voltage fig.20 output low voltage fig.21 thermal derating curve (ba6285afp-y) (ba6920fp-y) (sip9) fig.22 thermal derating curve fig.23 thermal derating curve fig.24 thermal derating curve (sop8) (ssop-a16) (hsop25) technical note 6/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. technical note 7/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. technical note 8/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. technical note 9/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. technical note 10/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. technical note 11/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. ? technical note 12/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. 2) output high voltage setting this function optionally sets output voltage by the output high voltage setting pin and controls the motor rotating speed. however, when the output high voltage is set to a low level, consumption at ic increases. carry out thermal design with sufficient margin incorporated with the power dissipation (p d) under the actual application condition taken into account. a) ba6287f, ba6285fs, ba6285afp-y the circuit diagram associated with the output high voltage setting vref pin is as per shown on the right. the output high and low voltages v oh and v ol are expressed by: v oh = vref - ( v sat(q1) + v f(q2) ) v ol = v sat(q3) (reference values; v sat technical note 13/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. technical note 14/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. technical note 15/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. 12) regarding the input pin of the ic this monolithic ic contains p+ isolat ion and p substrate layers between adjac ent elements, in order to keep them isolated. p-n junctions are formed at the intersection of these p layers with t he n layers of other elements, creating a parasitic diode or transistor. for example, the relation between each potential is as follows: when gnd > pin a and gnd > pin b, the p-n junction operates as a parasitic diode. when gnd > pin b, the p-n junction operates as a parasitic transistor. parasitic diodes inevitably occur in the structure of the ic. the operation of parasitic diodes can result in mutual interference among circuits, as well as operating malfuncti ons and physical damage. therefor e, do not use methods by which parasitic diodes operate, such as applying a voltage lo wer than the gnd (p substrate) voltage to an input pin. parasitic element appendix: example of monolithic ic structure resistor transistor (npn) n n n p + p + p p substrate gnd parasitic element pin a n n p + p + p p substrate gnd parasitic element pin b c b e n gnd pin a pin b other adjacent elements e b c gnd parasitic element technical note 16/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. ? order quantity needs to be multiple of the minimum quantity. technical note 17/17 ba6956an,ba6287f,ba6285fs, ba6285afp-y,ba6920fp-y www.rohm.com 2011.05 - rev.b ? 2011 rohm co., ltd. all rights reserved. (unit : mm) hsop25 7.8 0.3 5.4 0.2 2.75 0.1 1.95 0.1 25 14 1 13 0.11 1.9 0.1 0.36 0.1 12.0 0.2 0.3min. 0.25 0.1 13.6 0.2 0.8 (max 13.95 include burr) s 0.1 s ? order quantity needs to be multiple of the minimum quantity. 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 specified herein is subject to change for improvement without notice. the content specified 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 specifications, 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 specified 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 specified 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 specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specified 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, fire or any other damage caused in the event of the failure of any product, such as derating, redundancy, fire 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 specified 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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