TMC8462 Datasheet • Document Revision V1.4 • 2018-May -09
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Name
Pin
Type (I,O,PU,PD) Function
Switching Regulator 0 IOs
VS0
L7
I
Switching regulator 0 supply voltage, Switching
regulator 0 provides a fixed 3.3V output.
GND0
L9
L8
K7
I
Switching regulator 0 ground, connect to GND
Switching regulator 0 output, fixed 3.3V
SW0
O
I
SW_DIODE
Switching regulator 0 internal diode, connect to
SW0 only if VS0 is at or below 5V
GND_DIODE
K8
I
Switching regulator 0 internal diode ground, con-
nect to GND
Switching Regulator 1 IOs
VS1
L11
I
Switching regulator 1 supply voltage, Switching
regulator 1 provides an adjustable output volt-
age.
GND1
SW1
K9
I
Switching regulator 1 ground, connect to GND
L10
K10
O
I
Switching regulator 1 output, adjustable
VOUT
Switching regulator 1 inductor ringing suppres-
sion feedback
VOUT_FB
K11
I
Switching regulator 1 feedback voltage, 1.2V typi-
cally
Bus Interface 0 IOs (EtherCAT IN Port)
TN0
D1
E1
A1
B1
A2
O
O
I
Negative pin of differential transmit output pair
Positive pin of differential transmit output pair
Negative pin of differential receive output pair
Positive pin of differential receive output pair
TP0
RN0
RP0
I
REGOUT0
O
Regulator power output, use a 10uF and 0.1uF
for filtering power noise
MCLK
F2
F3
O
PHY management clock, leave open if not needed
MDIO
I/O, PU
PHY management data, use 4K7 pull up resistor
to VCCIO (3.3V)
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