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| BUS IC DC/DC CONVERTER MOTOR DRIVER IC RIPPLE COUNTER Position control y Position control + driver Speed control Ripple detection DRIVER IC I/O IC SENSOR IC SENSOR INTERFACE IC y Sensorless position control of DC-motors, with drivers FEATURES y y y y y y y y y y y y 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. 400 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 5V Monitor Diagnostic Data via SPI QFN 7 * 7 32 package Diagnostic data such as over current, over temperature, and motor 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. APPLICATION y Positioning of HVAC Flaps (according to US patent 5,203,499 owned by BHTC) ICs can be connected in a daisy chain. 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. DESCRIPTION The IC features 6 configurable half bridges to drives up to 3 DC motors simultaneously or up to 5 motors sequentially. 3 independent pulse detection circuits convert the commutation current of the motors into countable digital signals for positioning especially of HVAC flap actuators. coming soon PINNING Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Name GND CSOB DRB TPIN TMODE GND VDD GND TEST CLP1 CLP2 CLP3 VBAT OUT1 PGND CCP GND OUT2 PGND OUT3 VBAT OUT4 PGND OUT5 GND VS OUT6 PGND CLK CSB RxD TxD Description PGND OUT4 OUT3 OUT5 VBAT E910.71 PACKAGE out2 GND 17 16 15 14 13 12 11 10 9 Ground Chip select input/daisy chain out Data ready flag output, open drain Test input, connect to GND Test input, connect to GND Ground 5V supply input Ground Test mode, connect to ground Low pass filter capacitor for ripple detection 1 Low pass filter capacitor for ripple detection 2 Low pass filter capacitor for ripple detection 3 Battery supply Output half bridge 1 Power ground External charge pump capacitor Ground Output half bridge 2 Power ground Output half bridge 3 Battery supply Output half bridge 4 Power ground Output half bridge 5 Ground Battery supply Output half bridge 6 Power ground Clock input of SPI Chip select input Receive data input of SPI Transmit data output of SPI GND 25 VS 26 OUT6 27 PGND 28 CLK 29 CSB 30 RxD 31 TxD 32 24 23 22 21 20 PGND 19 18 CCP PGND OUT1 VBAT CLP3 CLP2 CLP1 TEST 1 2 3 4 5 6 7 8 CSOB TPIN TMODE GND GND VDD DRB AVAILABILITY Samples Series Q4/2005 Q2/2006 BLOCK DIAGRAM VBAT VS OUT1 Int. supply/ charge pump 6 26 27 M OUT2 M1 VCP 28 29 30 31 32 VDD 6 6 diag 6 M OUT3 M4 M OUT4 M2 CLK MISO C Ctrl. Ripple Detection 1 Ripple Detection 2 Ripple Detection 3 MUX MOSI CS DCO DR PROG M 6 OUT5 M5 M OUT6 M3 LP1 LP2 LP3 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 (c) 2005 ELMOS Reproduction, in part or whole, without the prior written consent of ELMOS, is prohibited. www.elmos.de | sales@elmos.de 48 GND elmos product catalog june 2005 49 |
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