TMC211_1 Datasheet, PDF (26/56 Pages) TRINAMIC Motion Control GmbH & Co. KG. – Micro Stepping Stepper Motor Controller / Driver with LIN Interface

26
TMC211 DATASHEET (V. 1.04 / January 7, 2005)
6.3 Analog Part
The transmitter is a low-side driver with a pull-up resistor and slope control. The figure below shows
the characteristics of the transmitted signal, including the delay between internal TxD Signal and LIN
Signal. See Table 32: AC Parameters LIN Transmitter on page 55 and Table 33: AC Parameters LIN
Receiver on page 55 for timing values.
TxD
50%
50%
T_tr_F
LIN
95%
t_slope_F
T_tr_R
60%
40%
5%
t_slope_R
LIN
t
100%
0%
t
50%
50%
t
RxD
50%
T_rec_F
T_rec_R
50%
t
Figure 15: LIN Signal Characteristics
6.4 Slave operational range for proper self synchronization
The internal oscillator having a ± 10% accuracy over the voltage and temperature range, will
synchronize properly in the following conditions:
• Vbb ≥ 8 V
• Ground shift between Master node and Slave node < ± 1 Volt
It is highly recommended to use the same type of reverse battery voltage protection diode for the
Master and the Slave nodes.
Copyright © 2004-2005 TRINAMIC Motion Control GmbH & Co. KG