Datasheet

TMC220X, TMC222X DATASHEET (Rev. 1.02 / 2017-MAY-16) 12
www.trinamic.com
2.7 Package Outline TMC2225
MS2
INDEX
GND
CPO
VS
-
DIR
OB2
BRB
OA1
OB1
TEST
GND
5VOUT
VCC_IO
PDN_UART
DIAG
CPI
VCP
VS
BRA
OA2
ENN
STEP
CLK
MS1
SPREAD
VREF
1 2 3 4 5 6 7
21201918171615
TMC2225
HTSSOP28
Pad=GND
© B. Dwersteg,
TRINAMIC
8 9 10 11 12 13 14
28272625242322
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
1
Charge pump capacitor output.
CPI
2
Charge pump capacitor input. Tie to CPO using 22nF 50V capacitor.
VCP
3
Charge pump voltage. Tie to VS using 100nF capacitor.
VS
4, 11
Motor supply voltage. Provide filtering capacity near pin with
shortest possible loop to GND pad.
OA2
5
Motor coil A output 2
BRA
6
Sense resistor connection for coil A. Place sense resistor to GND near
pin. Tie to GND when using internal sense resistor.
OA1
7
Motor coil A output 1
OB1
8
Motor coil B output 1
BRB
9
Sense resistor connection for coil B. Place sense resistor to GND near
pin. Tie to GND when using internal sense resistor.
OB2
10
Motor coil B output 2
VREF
12
AI
Analog reference voltage for current scaling or reference current for
use of internal sense resistors (optional mode)
TEST
13
Connect to GND. May alternatively be left open or connected to VREF.
GND
14, 28
GND. Connect to GND plane near pin.
5VOUT
15
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.
VCC_IO
16
3.3V to 5V IO supply voltage for all digital pins.
PDN_UART
17
DIO
(pd)
Power down not control input (low = automatic standstill current
reduction). (internal pull down resistor)
Optional UART Input/Output. Power down function can be disabled
in UART mode.
DIAG
18
DO
Diagnostic output. Hi level upon driver error. Reset by ENN=high.
SPREAD
19
DI (pd)
Chopper mode selection: Low=stealthChop, High=spreadCycle
DIR
20
DI (pd)
DIR input (internal pull down resistor)
ENN
21
DI
Enable not input. The power stage becomes switched off (all motor
outputs floating) when this pin becomes driven to a high level.