?W@^?I? 9 ? 7 ? 1 silicon touch technology inc . 9-7f-1, prosperity road i, science based industrial park, hsin-chu, taiwan 300, r.o.c. tel 886-3-5645656 fax 886-3-5645626 VM114 micro-actuator driver with i 2 c interface version : pre.001 issue date : 2010/01/14 file name : sp-VM114-pre.001.doc total page : 8
micro-actuator driver with i 2 c interface version pre.001 page 1 ??u}u??_??????P? unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. VM114 VM114 micro-actuator driver with i 2 c interface general specifications VM114 is a micro-actuator driver ic with miniature pa ckage. it is one channel low voltage bi-directional motor driv er ic. the design is optimal for driving different type micro-actuator, such as voice coil motor, piezo- actuator, or other dc mo tor actuators. it is suitable for camera module application or other portable devices. features and benefits low voltage operation (v dd min = 1.8 v) low input current zero standby current i 2 c serial interface automatic power on reset ultra small package: wlcsp (0.78*1.27*0.35mm) ordering information part number package marking VM114 wlcsp wlcsp, 6pin tbd
micro-actuator driver with i 2 c interface version pre.001 page 2 ??u}u??_??????P? unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. VM114 pin assignment of wlcsp (0.78*1.27*0.35mm) top view pin number pin name description 1 vo1 driver output 1 2 vss ground 3 scl i 2 c interface clock line(serial clock line) 4 sda i 2 c interface data line(serial data line) 5 vo2 driver output 2 6 vdd power supply
micro-actuator driver with i 2 c interface version pre.001 page 3 ??u}u??_??????P? unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. VM114 absolute maximum ratings ( unless otherwise noted, t a = 25 ) characteristic symbol rating unit supply voltage v dd 4.5 v input voltage v p1 v dd +0.4 v i o peak current i opeak 400 ma i odc current i odc 280 ma power dissipation p d 300 mw operating temperature range t opr -40 ~ 80 c storage temperature range t stg -65 ~ 150 c electrical characteristic (unless otherwise noted, t a = 25 & v dd =2.8v) limit unit characteristic sym. condition min. typ. max. supply voltage v dd 1.8 2.8 4.5 v standby current i dd no load - - 3 a sda scl input terminal ( t j = 25 ) input voltage ?h? v ih - 0.5*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 - - 1 a input current ?l? i il v in = 0 v - - 1 a output terminal (o1, o2) output resistance (upper) r oh i out =200ma - 1.3 1.6 ohm output resistance (low) r ol i out =200ma - 0.7 0.9 ohm
micro-actuator driver with i 2 c interface version pre.001 page 4 ??u}u??_??????P? unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. VM114 data format VM114 write mode in the writing mode, data is wri tten to VM114 and shifted into a 8-bit input register. after all 8 bits of data have been shifted in, a stop si gnal is generated by master controller. the data in the input register is transferred to vm 114 internal controller at the same time. VM114 read mode in reading mode, data is read from ic to a master controller in the same bit order. table address data serial data bits 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 function id6 id5 id4 id3 id2 id1 id0 r/w 0 0 0 0 0 0 d1 d0 d[1:0]: the output o1/o2 is set by d[1:0] as defined below.
micro-actuator driver with i 2 c interface version pre.001 page 5 ??u}u??_??????P? unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. VM114 function block sda i 2 c interface & controller scl gnd o2 o1 vdd 1 f m1 application notes ? the o1/o2 output h/h or l/ l will brake the motor. th ough the active current of driver is near to zero, if the application is required to turn off driver, please turn off the driver?s power from vdd. ? the capacitor connected between the out put nodes o1/o2 will reduce the noise generated by the motor when the moto r is switched to opposed direction. input output d1 d0 o1 o2 0 0 h h 0 1 h l 1 0 l h 1 1 l l
micro-actuator driver with i 2 c interface version pre.001 page 6 ??u}u??_??????P? unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. VM114 package specifications (wlcsp1): (0.78*1.27*0.35mm) dimension (mm) symbol min. nom. max. a 0.325 0.350 0.375 a1 0.090 0.100 0.110 a2 0.235 0.250 0.265 b 0.234 0.260 0.286 d 1.255 1.270 1.285 e 0.765 0.780 0.795 e1 0.380 0.400 0.420 e2 0.380 0.400 0.420 l1 0.215 0.235 0.255 l2 0.170 0.190 0.210
micro-actuator driver with i 2 c interface version pre.001 page 7 ??u}u??_??????P? unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement. VM114 the products listed herein are designed for or dinary electronic applications, such as electrical appliances, audio-visual equipm ent, communications devices and so on. hence, it is advisable that the devices should not be used in medical instruments, surgical implants, aerospace machi nery, nuclear power control systems, disaster/crime-prevention equipment and the like. misusing those products may directly or indirectly endanger human lif e, or cause injury and property loss. silicon touch technology, inc. will not take any responsibilities regarding the misusage of the products m entioned above. anyone w ho purchases any products described herein with the above-mentioned intention or with such misused applications should accept full responsibility and indemnify. silicon touch technology, inc. and its distributors and all their office rs and employees shall defend jointly and severally against any and all claims and litigation and all damages, cost and expenses associated with such in tention and manipulation.
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