E910.71 Datasheet, PDF (1/1 Pages) ELMOS Semiconductor AG – Sensorless position control of DC-motors, with drivers

BUS IC
DC/DC CONVERTER
MOTOR DRIVER IC
RIPPLE COUNTER
Position control
ÿ Position control + driver
Speed control
Ripple detection
ÿ Sensorless position control of DC-motors, with drivers
FEATURES
ÿ 6 Half Bridges configurable to drive 3, 4, or
5 DC Motors
ÿ Half Bridges not needed for Motor Control may
drive other kinds of loads
ÿ Output Current max. 400 mA per Half Bridge
ÿ Three independend Pulse Detectors and Counters
ÿ Servo Control Positioning of Actuators
ÿ Excellent Positioning Performance
ÿ SPI for communication with µC
ÿ Short Circuit Protection
ÿ Over Temperature Protection
ÿ Battery Supply and 5V Monitor
ÿ Diagnostic Data via SPI
ÿ QFN 7 * 7 32 package
APPLICATION
ÿ Positioning of HVAC Flaps (according to
US patent 5,203,499 owned by BHTC)
DESCRIPTION
The IC features 6 configurable 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 flap actuators.
Via an SPI a µC 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 µC.
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.
BLOCK DIAGRAM
VBAT
µC
VCP
VDD
CLK
MISO
MOSI
CS
DCO
DR
PROG
VS
Int.
supply/
charge
pump
Ctrl.
6
6
6
6
diag
Ripple Detection 1
Ripple Detection 2
Ripple Detection 3
6
MUX
LP1 LP2 LP3
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
M M1
M M4
M M2
M M5
M M3
48
DRIVER IC
I/O IC
SENSOR IC
SENSOR INTERFACE IC
coming soon
PINNING
Pin Name
1 GND
2 CSOB
3 DRB
4 TPIN
5 TMODE
6 GND
7 VDD
8 GND
9 TEST
10 CLP1
11 CLP2
12 CLP3
13 VBAT
14 OUT1
15 PGND
16 CCP
17 GND
18 OUT2
19 PGND
20 OUT3
21 VBAT
22 OUT4
23 PGND
24 OUT5
25 GND
26 VS
27 OUT6
28 PGND
29 CLK
30 CSB
31 RxD
32 TxD
Description
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
PACKAGE
E910.71
24 23 22 21 20 19 18 17
GND 25
16 CCP
VS 26
15 PGND
OUT6 27
14 OUT1
PGND 28
13 VBAT
CLK 29
12 CLP3
CSB 30
11 CLP2
RxD 31
10 CLP1
TxD 32
9 TEST
12 345678
AVAILABILITY
Samples
Series
Q4/2005
Q2/2006
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.
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elmos product catalog june 2005
49