ELMOS E910.80

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.
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elmos product catalog june 2005
43