TMC220X, TMC222X DATASHEET (Rev. 1.02 / 2017-MAY-16)
10
Pin
Number Type
Function
GND
CPO
CPI
6, 19
GND. Connect to GND plane near pin.
Charge pump capacitor output.
Charge pump capacitor input. Tie to CPO using 22nF 50V capacitor.
Charge pump voltage. Tie to VS using 100nF capacitor.
7
8
9
VCP
Output of internal 5V regulator. Attach 2.2µF to 4.7µF ceramic
capacitor to GND near to pin for best performance. Provide the
shortest possible loop to the GND pad.
5VOUT
10
MS1
MS2
DIAG
11
12
13
DI (pd) Microstep resolution configuration (internal pull down resistors)
MS2, MS1: 00: 1/8, 01: 1/2, 10: 1/4 11: 1/16
Diagnostic output. Hi level upon driver error. Reset by ENN=high.
CLK input. Tie to GND using short wire for internal clock or supply
external clock.
DI (pd)
DO
CLK
14
DI
Power down not control input (low = automatic standstill current
reduction).
Optional UART Input/Output. Power down function can be disabled
PDN_UART 15
DIO
in UART mode.
VCC_IO
STEP
16
17
3.3V to 5V IO supply voltage for all digital pins.
STEP input
Analog reference voltage for current scaling or reference current for
use of internal sense resistors (optional mode)
DI
AI
VREF
18
DIR
OA2
20
24
DI (pd) DIR input (internal pull down resistor)
Motor coil A output 2
Sense resistor connection for coil A. Place sense resistor to GND near
pin. Tie to GND when using internal sense resistor.
Motor coil A output 1
BRA
25
OA1
OB1
27
30
Motor coil B output 1
Sense resistor connection for coil B. Place sense resistor to GND near
pin. Tie to GND when using internal sense resistor.
Connect the exposed die pad to a GND plane. Provide as many as
possible vias for heat transfer to GND plane. Serves as GND pin for
power drivers and analogue circuitry.
BRB
32
Exposed
die pad
-
2.5 Package Outline TMC2224
28 27 26 25 24 23 22
MS2
INDEX
GND
CPO
CPI
DIAG
PDN_UART
VCC_IO
5VOUT
GND
TMC2224
QFN28
© B. Dwersteg,
TRINAMIC
VCP
VS
TEST
VREF
Pad=GND
8
9
10 11 12 13 14
Figure 2.3 TMC2224 Pinning Top View – type: QFN28, 5x5mm², 0.5mm pitch
www.trinamic.com
TRINAMIC [ TRINAMIC MOTION CONTROL GMBH & CO. KG. ]
