TMC220X, TMC222X DATASHEET (Rev. 1.02 / 2017-MAY-16)
12
2.7 Package Outline TMC2225
GND
INDEX
MS2
CPO
CPI
VCP
VS
MS1
OA2
BRA
OA1
OB1
BRB
OB2
VS
VREF
TEST
GND
CLK
-
STEP
ENN
DIR
SPREAD
DIAG
PDN_UART
VCC_IO
5VOUT
TMC2225
HTSSOP28
© B. Dwersteg,
TRINAMIC
Pad=GND
Figure 2.4 TMC2225 Pinning Top View – type: HTSSOP28, 9.7x6.4mm² over pins, 0.65mm pitch
2.8 Signal Descriptions TMC2225
Pin
Number Type
Function
CPO
CPI
VCP
1
2
3
Charge pump capacitor output.
Charge pump capacitor input. Tie to CPO using 22nF 50V capacitor.
Charge pump voltage. Tie to VS using 100nF capacitor.
Motor supply voltage. Provide filtering capacity near pin with
shortest possible loop to GND pad.
VS
4, 11
OA2
BRA
5
6
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
OA1
OB1
7
8
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.
Motor coil B output 2
Analog reference voltage for current scaling or reference current for
use of internal sense resistors (optional mode)
Connect to GND. May alternatively be left open or connected to VREF.
GND. Connect to GND plane near pin.
BRB
OB2
VREF
9
10
12
AI
TEST
GND
13
14, 28
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.
3.3V to 5V IO supply voltage for all digital pins.
Power down not control input (low = automatic standstill current
reduction). (internal pull down resistor)
5VOUT
VCC_IO
15
16
DIO
(pd)
PDN_UART 17
Optional UART Input/Output. Power down function can be disabled
in UART mode.
DIAG
SPREAD
DIR
18
19
20
DO
Diagnostic output. Hi level upon driver error. Reset by ENN=high.
DI (pd) Chopper mode selection: Low=stealthChop, High=spreadCycle
DI (pd) DIR input (internal pull down resistor)
Enable not input. The power stage becomes switched off (all motor
outputs floating) when this pin becomes driven to a high level.
ENN
21
DI
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TRINAMIC [ TRINAMIC MOTION CONTROL GMBH & CO. KG. ]
