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?I? 9 ? 7 ? 1 silicon touch technology inc . 9-7f-1, prosperity rd i, science-based industrial parkhsinchu, taiwan, r.o.c. te l 886-3-5645656 fax 886-3-5645626 11-MD152 version : a.011 issue date : 2007/11/19 file name : sp-md152-a.011.doc total page : 15 multi-channels motor driver for dsc
c???? silicon touch technology inc. 11-MD152 sp-md152-a.011 version a.011 page 1 11-MD152 multi-channels motor driver for dsc general specifications the 11-MD152 is all in one actuat or driver for digital still camera. it contains constant current control for m-shutter and constant voltage control for zoom dc motor. it has multiple channels, which can apply to dsc or dv zooming lens. features and benefits z low voltage operation (v dd min = v b min = 2.7v) z low saturation voltage (upper transistor + lower transistor residual voltage 0.25v typically at 200ma, v dd = v b = 3v) z low input current z constant current control and constant voltage control z zero standby current z reference voltage inside (vref=1.23v) z thermal shutdown protection z thin, highly reliable package:qfn-32( 4.75mmx4.75mm) ,ssop24 and tssop-24 pin assignment pin assignment of qfn-32 pin assignment of ssop-24 pin assignment of tssop-24 en2 en3 in1 in2 in3 in4 vref nc gnd out2 out3 out5 out6 out7 out4 out8 vc nc nc vb gnd nc nc nc nc nc im out1 gnd vdd pim en1 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 1 2 3 4 5 6 7 8 24 23 22 21 20 19 18 17 out1 gnd im out3 out5 out6 out7 out4 out8 gnd vb vdd pim en1 en2 en3 in1 in2 in3 in4 vref nc vc out2
c???? silicon touch technology inc. 11-MD152 sp-md152-a.011 version a.011 page 2 pin descriptions of qfn-32 pin no. pin name description pin no. pin name description 1 en2 mode selected input pin 17 ou t8 constant voltage output pin 2 en3 mode selected input pin 18 ou t4 constant voltage output pin 3 in1 motor control input pin 19 out7 motor output pin 4 in2 motor control input pin 20 out6 motor output pin 5 in3 motor control input pin 21 out5 motor output pin 6 in4 motor control input pin 22 out3 motor output pin 7 vref reference voltage output pin 23 out2 motor output pin 8 nc 24 gnd controller and driver ground 9 vc voltage adjust control 25 nc 10 nc 26 nc 11 nc 27 im current sense resistor 12 vb power supply pin for motor driver 28 out1 motor output pin 13 gnd motor driver ground 29 gnd controller and driver ground 14 nc 30 vdd power supply pin for controller. 15 nc 31 pim current sense resistor 16 nc 32 en1 mode selected input pin pin descriptions of ssop24 and tssop-24 pin no. pin name description pin no. pin name description 1 vdd power supply pin for controller. 13 vb power supply pin for motor driver 2 pim current sense resist or 14 gnd driver ground 3 en1 mode selected input pin 15 ou t8 constant voltage output pin 4 en2 mode selected input pin 16 ou t4 constant voltage output pin 5 en3 mode selected input pin 17 out7 motor output pin 6 in1 motor control input pin 18 out6 motor output pin 7 in2 motor control input pin 19 out5 motor output pin 8 in3 motor control input pin 20 out3 motor output pin 9 in4 motor control input pin 21 out2 motor output pin 10 vref reference voltage output pi n 22 im current sense resistor 11 nc 23 gnd controller and driver ground 12 vc voltage adjust control 24 out1 motor output pin
c???? silicon touch technology inc. 11-MD152 sp-md152-a.011 version a.011 page 3 absolute maximum ratings ( unless otherwise noted, t a = 25 ) characteristic symbol rating unit v dd 5.5 v supply voltage v b 5.5 v input voltage v in v dd +0.4 v i o peak current i opeak 1.5 a i odc current i odc 550 ma power dissipation p d 800 mw operating temperature range t opr -40 ~ 125 c storage temperature range t stg -65 ~ 150 c electrical characteristic (unless otherwise noted, t a = 25 , v dd = v b = 3v ) limit characteristic sym. condition min. typ. max. unit v dd 2.7 3 5.5 v supply voltage v b 2.7 3 5.5 v i stb v en1~ en3 =l; v in1~ in4 =l 0.1 5 a i dd1 v en1~ en3 = hhl 1 1.5 ma i dd2 v en1~ en3 = hll 1 1.5 ma supply current ( i dd ) i dd3 v en1~ en3 = llh 1.2 2 ma reference voltage circuit reference voltage vref vdd = 3v ; iref = -1ma 1.19 1.23 1.27 v en1~3 / in1~4 input terminal ( t j = 25 ) input voltage ?h? v ih - 0.8*v dd - v dd +0.4 v input voltage ?l? v il - -0.4 - 0.2*v dd v input current ?h? i ih v in = v dd - - 5 a input current ?l? i il v in = 0 v - - 5 a af output terminal (out2-3 out6-7) saturation voltage (upper + lower) v sat1 i out = 200 ma - 0.25 0.4 v ae output terminal (out5-6) saturation voltage (upper + lower) v sat2 i out = 200 ma - 0.25 0.4 v
c???? silicon touch technology inc. 11-MD152 sp-md152-a.011 version a.011 page 4 sh output terminal (out1-2) ra + rb = 10 k output current1 i o1 out2-> out1 r im = 1 260 285 310 ma output current1 i o2 out1-> out2 r pim = 0.9 260 290 325 ma saturation voltage (upper + lower) v sat3 i out = 200 ma - 0.25 0.4 v zoom output terminal (out4-8) output voltage v out v b = 3 ~ 4v v c =1v 2.86 2.99 3.12 v saturation voltage (upper + lower) v sat4 i out = 200 ma - 0.22 0.36 v thermal protection circuit protection temperature t tsd v en1 or v en2 or v en3 =h 160 function block (ssop24 and tssop-24 pin assignment) cpu thd 19 18 17 16 15 24 21 20 22 2 13 logic 10 1 12 3 4 5 6 7 8 9 23 14 vdd vref vc vb pim im out1 out2 out3 out5 out6 out7 out4 out8 gnd en1 en2 en3 in1 in2 in3 in4 shutter aperture dc zoom af constant current drive saturation voltage drive constant voltage drive vdd vdd vdd vdd vdd vdd vdd bias r pim 10uf 10uf ra rb r im
c???? silicon touch technology inc. 11-MD152 sp-md152-a.011 version a.011 page 5 truth table input ouput en1 en2 en3 in1 in2 in3 in4 o1 o2 o3 o4 o5 o6 o7 o8 mode l l l stb l l l h l h h l h l h h l l l h l h h l h l l l h h h sh (vcm) & ae (vcm) or ae (stm) l l l h l h h l h l h h l l l h l h h l h l l h h h h ae (stm) or ae (vcm) * * l l * * l h l h * * h l h l h l l * * h h h h zoom (dcm) l l l h l h h l h l h h l l l h l h h l h l h h l h h af (stm) l l l h l h h l h l h h l l l h l h h l h l h l h h h zoom (stm) note: ?*?: don?t care; ? ?: high impedance
c???? silicon touch technology inc. 11-MD152 sp-md152-a.011 version a.011 page 6 application circuit 1 vdd pim en1 en2 en3 in1 in2 in3 in4 vref nc vc 11-MD152 out1 gnd im out2 out3 out5 out6 out7 out4 out8 gnd vb vdd m in4 in3 in2 in1 en3 en2 en1 vb ra rb vb zoom af aperture r pim r im 10 c n c n c n c n 10 10 c c m-shutter z af: saturation drive for 2 phase, 1-2 phase stepping motor z m-shutter: constant current dri ve for shutter voice coil motor z aperture: saturation drive for aperture voice coil motor z zoom: constant voltage drive for dc motor (forward/reverse/brake/standby)
c???? silicon touch technology inc. 11-MD152 sp-md152-a.011 version a.011 page 7 truth table for application circuit 1 constant current control for sh vcm input ouput mode en1 en2 en3 in1 in2 in3 in4 o1 o2 l l l l l h l l l h h l l l h l l l h h h l l sh (vcm) saturation control for ae vcm input ouput mode en1 en2 en3 in1 in2 in3 in4 o5 o6 l l l l l l l h l h l l h l h l l h h l l h h ae (vcm) constant voltage control for zoom dcm input ouput mode en1 en2 en3 in1 in2 in3 in4 o4 o8 * * l l * * l h l h * * h l h l h l l * * h h h h zoom (dcm) saturation control for 1-2 phase af stm input ouput mode en1 en2 en3 in1 in2 in3 in4 o2 o3 o6 o7 l h l l l h ? ? l h l h l h l h l l l h ? ? l h h l l h h l l h h l l l h l ? ? h l h l h l h l l l h l ? ? h l h h l l h h l l h h l af (stm) note: ?*?: don?t care; ? ?: high impedance
c???? silicon touch technology inc. 11-MD152 sp-md152-a.011 version a.011 page 8 application circuit 2 vdd pim en1 en2 en3 in1 in2 in3 in4 vref nc vc 11-MD152 out1 gnd im out2 out3 out5 out6 out7 out4 out8 gnd vb in4 in3 in2 in1 en3 en2 en1 vb vb zoom af aperture vdd 0.1 0.1 0.1 10 10 10 0.1 m 0.1 ra rb r im m-shutter r pim cc z af: saturation drive for 2 phase, 1-2 phase stepping motor z m-shutter: constant current dri ve for shutter voice coil motor z aperture: saturation voltage drive for stepping motor z zoom: constant voltage drive for dc motor (forward/reverse/brake/standby)
c???? silicon touch technology inc. 11-MD152 sp-md152-a.011 version a.011 page 9 truth table for application circuit 2 constant current control for sh vcm input ouput mode en1 en2 en3 in1 in2 in3 in4 o1 o2 l l l l l h l l l h h l l l h l l l h h h l l sh (vcm) saturation voltage control for 2 phase ae stm input ouput mode en1 en2 en3 in1 in2 in3 in4 o3 o4 o5 o6 l h l h l h l h h l l h h l l h h l h l h l h l l h h l h h l l h h l ae (stm) constant voltage control for zoom dcm input ouput mode en1 en2 en3 in1 in2 in3 in4 o4 o8 * * l l * * l h l h * * h l h l h l l * * h h h h zoom (dcm) saturation control for 1-2 phase af stm input ouput mode en1 en2 en3 in1 in2 in3 in4 o2 o3 o6 o7 l h l l l h ? ? l h l h l h l h l l l h ? ? l h h l l h h l l h h l l l h l ? ? h l h l h l h l l l h l ? ? h l h h l l h h l l h h l af (stm) note: ?*?: don?t care; ? ?: high impedance
c???? silicon touch technology inc. 11-MD152 sp-md152-a.011 version a.011 page 10 application notes z the 11-MD152 integrates saturation vo ltage, constant voltage, and constant current of motor driver. the range of supply voltage of 11-MD152, vdd and vb, is from 2.7v to 5.5v. the 11 -md152 input range is defined that logic ?h? is from 0.8*vdd to vdd+0.4v and logic ?l? is fr om ?0.4v to 0.2*vd d. en1, en2 and en3 are mode selection pins; in1, in2, in3 and in4 are motor rotation selection pins. z normally vb should provide enough current for output loading, thus large value of c is suggested for the terminal vb. be sides, 0.01uf~0.1uf of capacitors, c n , are also suggested between each output channel and output channel to ground. z vc provides the reference of output level at out4 and out8. if 3*vc < vb, out4/out8 gets 3 times of vc at logic ?h?. and if 3*vc > vb, out4/out8 is saturated at logic ?h?. z constant current operation of 11-md 152 provides the current, which can be approximated by the following formula (see the depiction of application circuit 1 & 2. ra+rb is the resistance conn ected from vref to ground): ) : ( 1 . 0 2900 a unit rb) )(ra (r i pim pim + + = ) : ( ) 1 . 0 ( 3150 a unit rb) (ra r i im im + + = z before switching the mode of actuator, make sure to pull low the motor rotation selection pins. then, switch to next mode to drive the motor. z considering of stability of function of c onstant current, compensation capacitor of c c (0.1~1uf) is suggested to connect between pin out1 and im.
c???? silicon touch technology inc. 11-MD152 sp-md152-a.011 version a.011 page 11 package specifications (qfn-32) d d2 e b l a a3 e top view botton view 1 1 8 8 9 9 16 16 24 17 24 17 32 25 25 32 a1 md152 dddddddd e2 e dimensions in millimeter symbol min nom max a 0.70 0.75 0.80 a1 0 0.02 0.05 a3 0.20 ref b 0.18 0.25 0.30 d 5.00 bsc d2 1.25 2.75 3.25 e 5.00 bsc e2 1.25 2.70 3.25 l 0.30 0.40 0.50 e 0.50 bsc note: ?dddddddd? are the date code or lot number and may be changed.
c???? silicon touch technology inc. 11-MD152 sp-md152-a.011 version a.011 page 12 package specifications (ssop-24) md152 dddddddd 1 d e1 e 12 24 13 a e b c a1 a2 a l l1 detail : a dimensions in millimeter symbol min nom max a 1.35 1.63 1.75 a 1 0.10 0.15 0.25 a 2 1.50 d 8.50 8.60 8.70 e 5.80 6.00 6.20 e1 3.80 3.90 4.00 b 0.20 0.30 c 0.18 0.25 e 0.64 basic l 0.41 0.64 1.27 l1 1.00ref 0 8 note: ?dddddddd? are the date code or lot number and may be changed.
c???? silicon touch technology inc. 11-MD152 sp-md152-a.011 version a.011 page 13 package specifications (tssop-24) md152 dddddddd 1 d e1 e 12 24 13 a e b a1 a2 a s l l1 dimensions in millimeter symbol min nom max a 1.20 a 1 0.00 0.15 a 2 0.80 1.00 1.05 b 0.19 0.30 e 0.65 basic d 7.70 7.80 7.90 e 6.4 basic e1 4.30 4.40 4.50 l 0.45 0.60 0.75 s 0.20 l1 1.00ref 0 8 note: ?dddddddd? are the date code or lot number and may be changed.
c???? silicon touch technology inc. 11-MD152 sp-md152-a.011 version a.011 page 14 the products listed herein are designed for ordinary electronic applications, such as electrical appliances, audio-vi sual equipment, communications devices and so on. hence, it is advisable t hat the devices should not be used in medical instruments, surgical implants, aerospace machinery, nuclear power control systems, disaster/crime-prev ention equipment and the like. misusing those products may directly or indire ctly endanger human life, or cause injury and property loss. silicon touch technology, inc. will not ta ke any responsibilities regarding the misusage of the products mentioned above. anyone who purchases any products described herein with the above- mentioned intenti on or with such misused applications should accept full responsibility and indemnify. silicon touch technology, inc. and its distributors and all their officers and employees shall defend jointly and severally agains t any and all claims and litigation and all damages, cost and expenses asso ciated with such intention and manipulation .

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