BUS IC DC/DC CONVERTER MOTOR DRIVER IC RIPPLE COUNTER DRIVER IC I/O IC SENSOR IC SENSOR INTERFACE IC Fan control EC motor control ÿ Steppermotor driver ÿ Bus controlled steppermotor driver system evaluation chip FEATURES PINNING DESCRIPTION ÿ Supply voltage range 9V to 16V The IC is developed for automotive applications. The stepper mo- ÿ Stalled recognition without additional shunts tor driver is optimized to drive SAIA stepper motors, but is also ÿ Two H-bridges which drive directly a stepper motor verified with several bipolar stepper motors in the market. A ÿ Drives 200mA per coil stalled detection is fully integrated and does not need a shunt ÿ K-Bus controlled resistor. With a configuration bit it is possible to decide whether ÿ Slope controlled bus interface to stop the movement or not in case of a stalled situation. ÿ Self adjusting oscillator ÿ Bus concept not sensitive to disturbances With the blocking recognition capability no additional end- ÿ LabView™ programm using RS232 for switches are needed, system noise is reduced, initialization is testapplications is available. faster and mechanical problems do not lead to problems in the ÿ – 40°C to + 85 ºC operating temperature motor. ÿ SO16w package When up to 32 ASICs can be used on one bus; whereby the 5 bit address of each chip is stored in EEPROM cells. The chip can pro- APPLICATION gram itself when triggered with the suitable command. ÿ Automotive electronics ÿ Climate controllers The IC allows to give movement tasks with up to 4096 steps ÿ Positioning and moving applications in each direction. There is a one task stack which allows you to change speed settings smoothly. BLOCK DIAGRAM E910.80 PACKAGE Pin Name Description 1 A0 Motor driver coil A side 0 2 BUS Bidirectional bus-line 3 AVDD1 Supply voltage 4 NC Not connected 5 NC Not connected 6 NC Not connected 7 NC Not connected 8 B0 Motor driver coil B side 0 9 B1 Motor driver coil B side 1 10 VDD Internal digital supply 11 TMOD Testpin ( connect to GND) 12 AVDD2 Supply voltage, to be externally connected to pin 3 13 BGVDD 14 CVDD 15 GND 16 A1 Internal preregulator may be connected to an ext. capacitor Internal analog supply (no exterenal connections needed) A0 1 16 BUS 2 15 AVDD1 3 14 n.c. 4 13 n.c. 5 12 n.c. 6 11 n.c. 7 10 B0 8 9 A1 GND CVDD BGVDD AVDD2 TMOD VDD B1 AVAILABILITY Samples Series available tbd. Ground Motor driver coil A side 1 VBAT AVDD2 AVDD1 n.c. n.c. VDD CVDD BGVDD 100nF int. Voltage A0 Regulator ϑ - Protection Address - E² A1 M control B0 K-BUS B1 slewrate Ctrl TMDD 42 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 significantly affect its safety or effectiveness. Products are not authorized for use in such applications. Copyright © 2005 ELMOS Reproduction, in part or whole, without the prior written consent of ELMOS, is prohibited. www.elmos.de | [email protected] elmos product catalog june 2005 43