TMC211-PA20 TRINAMIC [TRINAMIC Motion Control GmbH & Co. KG.], TMC211-PA20 Datasheet - Page 6

• Manufacturer Part Number: TMC211-PA20
• Description: Micro Stepping Stepper Motor Controller / Driver with LIN Interface
• Manufacturer: TRINAMIC [TRINAMIC Motion Control GmbH & Co. KG.]

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2.4 LIN Interface
Communication between a host and the TMC211 takes places via the bi-directional LIN interface.
Motion Instructions and diagnostic information are provided to or from the Main Control block. It is
possible to connect up to 128 devices on the same bus. Slave addresses are programmable via OTP
memory or external pins. The LIN interface implements the MAC and LLC layers according to the OSI
reference model.
2.5 Miscellaneous
Besides the main blocks the TMC211 contains the following:
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2.6 Pin and Signal Descriptions
Copyright © 2004-2005 TRINAMIC Motion Control GmbH & Co. KG
an internal charge pump is used to drive the high side transistors.
an internal oscillator running at 4 MHz +/- 10% to clock the LIN protocol handler, the positioning
unit, and the main control block
internal voltage reference for precise referencing
a 5 Volts voltage regulator to supply the digital logic
protection block featuring Thermal Shutdown, Power-On-Reset, etc.
VBAT
HW0
HW1
HW2
GND
VDD
CPN
CPP
VCP
TST
OB2
OB1
OA2
OA1
SWI
Pin
LIN
4,7,14,17
SOIC20
12,19
10
11
13
15
16
18
20
1
2
3
5
6
8
9
Table 1: TMC211 Signal Description
hard-wired LIN address bit #0 input
hard-wired LIN address bit #1 input
Internal supply (needs external decoupling capacitor)
ground, heat sink
test pin (to be tied to ground in normal operation)
LIN-bus connection
hard-wired LIN address bit #2 input
negative connection of external charge pump capacitor
positive connection of external charge pump capacitor
connection of external charge pump filter capacitor
battery voltage supply
negative end of phase B coil
positive end of phase B coil
negative end of phase A coil
positive end of phase A coil
reference switch input
HW0
HW1
HW2
GND
GND
VDD
CPN
CPP
TST
LIN
10
1
2
3
4
5
6
7
8
9
TMC211 DATASHEET (V. 1.04 / January 7, 2005)
Description
20
19
18
17
16
15
14
13
12
11
SWI
VBAT
OA1
GND
OA2
OB1
GND
OB2
VBAT
VCP