E910.80 Datasheet, PDF (1/1 Pages) ELMOS Semiconductor AG – Bus controlled steppermotor driver

BUS IC
DC/DC CONVERTER
MOTOR DRIVER IC
Fan control
EC motor control
ÿ Steppermotor driver
RIPPLE COUNTER
ÿ Bus controlled steppermotor driver
FEATURES
ÿ Supply voltage range 9V to 16V
ÿ Stalled recognition without additional shunts
ÿ Two H-bridges which drive directly a stepper motor
ÿ Drives 200mA per coil
ÿ K-Bus controlled
ÿ Slope controlled bus interface
ÿ Self adjusting oscillator
ÿ Bus concept not sensitive to disturbances
ÿ LabView™ programm using RS232 for
testapplications is available.
ÿ – 40°C to + 85 ºC operating temperature
ÿ SO16w package
APPLICATION
ÿ Automotive electronics
ÿ Climate controllers
ÿ Positioning and moving applications
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.
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-
gram itself when triggered with the suitable command.
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.
DRIVER IC
I/O IC
SENSOR IC
SENSOR INTERFACE IC
system evaluation chip
PINNING
Pin Name
1 A0
2 BUS
3 AVDD1
4 NC
5 NC
6 NC
7 NC
8 B0
9 B1
10 VDD
11 TMOD
12 AVDD2
13 BGVDD
14 CVDD
15 GND
16 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
E910.80
PACKAGE
A0
1
BUS
2
AVDD1
3
n.c.
4
n.c.
5
n.c.
6
n.c.
7
B0
8
16
A1
15
GND
14
CVDD
13
BGVDD
12
AVDD2
11
TMOD
10
VDD
9
B1
AVAILABILITY
Samples
Series
available
tbd.
BLOCK DIAGRAM
VBAT
VDD
n.c.
n.c. ^CVDD
BGVDD
100nF
AVDD1
int. Voltage
Regulator
ϑ ^{- Protection}
Address - E²
K-BUS
slew-
rate Ctrl
42
control
TMDD
AVDD2
A0
A1
M
B0
B1
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
43