bus ic dc/dc converter motor driver ic ripple counter 48 block diagram driver ic i/o ic sensor ic sensor interface ic 49 elmos product catalog june 2 00 5 note elmos semiconductor ag (below elmos) reserves the right to make changes to the product contained in this publication without notice. elmos assumes no responsibility for the use of any circuits described herein, conveys no licence under any patent or other right, and makes no representation that the circuits are free of patent infringement. while the information in this publication has been checked, no responsibility, however, is assumed for inaccuracies. elmos does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of a life-support system or to signi?cantly affect its safety or effectiveness. products are not authorized for use in such applications. copyright ? 2 00 5 elmos reproduction, in part or whole, without the prior written consent of elmos, is prohibited. www.elmos.de | sales@ elmos .de pinning package ? sensorless position control of dc-motors, with drivers coming soon e 9 1 0 . 7 1 vba t c vdd vs clk miso mosi cs dco dr prog ctrl. int. supply/ charge pump vcp ripple detection 1 ripple detection 2 ripple detection 3 mux 6 6 6 6 6 out1 out2 out3 out4 out5 out6 m1 m4 m2 m5 m3 lp1 diag lp2 lp3 m m m m m features ? 6 half bridges configurable to drive 3 , 4 , or 5 dc motors ? half bridges not needed for motor control may drive other kinds of loads ? output current max. 4 00 ma per half bridge ? three independend pulse detectors and counters ? servo control positioning of actuators ? excellent positioning performance ? spi for communication with c ? short circuit protection ? over temperature protection ? battery supply and 5 v monitor ? diagnostic data via spi ? qfn 7 * 7 32 package a pplication ? positioning of hvac flaps (according to us patent 5 , 2 0 3 , 4 99 owned by bhtc) d escription the ic features 6 con?gurable half bridges to drives up to 3 dc motors simultaneously or up to 5 motors sequentially. 3 indepen - dent pulse detection circuits convert the commutation current of the motors into countable digital signals for positioning especial - ly of hvac ?ap actuators. via an spi a c sends motor address, direction, and pulse count command to the device. the corresponding motor will then be driven to the desired position, and the actual number of counts is sent back to the c. diagnostic data such as over current, over temperature, and mo - tor stall is also transmitted via the spi. an open drain low side output indicates when a required motor position is reached or diagnostic data is available. ics can be connected in a daisy chain. pin name description 1 gnd ground 2 csob chip select input/daisy chain out 3 drb data ready ?ag output, open drain 4 tpin test input, connect to gnd 5 tmode test input, connect to gnd 6 gnd ground 7 vdd 5 v supply input 8 gnd ground 9 test test mode, connect to ground 1 0 clp 1 low pass ?lter capacitor for ripple detection 1 11 clp 2 low pass ?lter capacitor for ripple detection 2 1 2 clp 3 low pass ?lter capacitor for ripple detection 3 1 3 vbat battery supply 1 4 out 1 output half bridge 1 1 5 pgnd power ground 1 6 ccp external charge pump capacitor 1 7 gnd ground 1 8 out 2 output half bridge 2 1 9 pgnd power ground 2 0 out 3 output half bridge 3 2 1 vbat battery supply 22 out 4 output half bridge 4 2 3 pgnd power ground 2 4 out 5 output half bridge 5 2 5 gnd ground 2 6 vs battery supply 2 7 out 6 output half bridge 6 2 8 pgnd power ground 2 9 clk clock input of spi 3 0 csb chip select input 3 1 rxd receive data input of spi 3 2 txd transmit data output of spi gn d vs ou t6 pg nd cl k csb rxd tx d gn d csob dr b tp in tm ode gn d vd d gn d 25 26 27 28 29 30 31 32 ou t5 pg nd ou t4 vb at ou t3 pg nd ou t2 gn d 24 23 22 21 20 19 18 17 1 2 3 4 5 6 7 8 cc p pg nd ou t1 vb at c lp3 c lp2 c lp1 te st 16 15 14 13 12 11 10 9 availability s amples q4/2005 s eries q2/2006 position control ? position control + driver speed control ripple detection
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