TMC262 DATASHEET (Rev. 2.07 / 2013-FEB-14)
6
2 Pin Assignments
2.1 Package Outline
32 31 30 29 28 27 26 25
GND
HA1
VHS
HB1
HA2
HB2
BMA2
BMB2
TMC 262-LA
BMA1
BMB1
LB1
LA1
LA2
SRA
LB2
SRB
9
10 11 12 13 14 15 16
Top view
Figure 2.1 TMC262 pin assignments
2.2 Signal Descriptions
Pin
Number Type
Function
GND
1
Digital and analog low power GND
13
HA1
HA2
HB1
HB2
BMA1
BMA2
BMB1
BMB2
LA1
LA2
LB1
LB2
SRA
2
3
23
22
5
O (VS)
I (VS)
O 5V
AI
High side P-channel driver output. Becomes driven to VHS to switch
on MOSFET.
Sensing input for bridge outputs. Used for short to GND protection.
May be tied to VS if unused.
4
20
21
6
Low side MOSFET driver output. Becomes driven to 5VOUT to switch
on MOSFET.
7
19
18
8
Sense resistor input of chopper driver.
SRB
17
5VOUT
9
Output of internal 5V linear regulator. This voltage is used to
supply the low side drivers and internal analog circuitry. An
external capacitor to GND close to the pin is required. Place the
capacitor near to pin 9 and pin 13. 470nF ceramic are sufficient for
most applications, an additional tantalum capacitor (10µF or more)
improves performance with high gate charge MOSFETs.
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