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