Datasheet

TMC8462 Datasheet • Document Revision V1.5 • 2019-June-21
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8 Electrical Ratings
8.1 Absolute Maximum Ratings
Note
The maximum ratings may not be exceeded under any circumstances. Operating
the circuit at or near more than one maximum rating at a time for extended
periods shall be avoided by application design.
Parameter Symbol Min Max Unit
Supply and HV IO supply voltage with T
J
= 0°C *) V
VS
, V
VIOx
40 V
Supply and HV IO supply voltage max. with T
J
full range *) V
VS
, V
VIOx
35 V
Maximum voltage on HV IO pins V
VIO
-0.6 V
VIOx
+0.6 V
Peak current into HV IO input protection diodes (100ms) I
HVIOPEAK
-100 +100 mA
Digital I/O supply voltage V
VIO
3.6 V
Digital VCC supply voltage (if not supplied by internal regulator) V
VCC
1.98 V
Logic input voltage V
I
3.6 V
Maximum current to / from digital pins and analog low voltage
I/Os
I
IO
10 mA
1.8V regulator output current (internal plus external load) I
VOUT18
mA
Switching regulator repetitive short time output current I
VOUTSW
800 mA
Schottky diode reverse voltage V
SDR
7 V
Schottky diode repetitive short time forward current I
SD
800 mA
Junction temperature T
J
-40 175 °C
Storage temperature T
STG
-55 150 °C
ESD-Protection for interface pins (Human body model, HBM) V
ESDAP
4 (tbd.) kV
ESD-Protection for handling (Human body model, HBM) V
ESD
1 (tbd.) kV
Table 211: Absolute Maximum Ratings for TMC8462-BA
*) Stray inductivity of GND and VS connections will lead to ringing of the supply voltage when driving
load. This ringing results from the fast switching slopes of the driver outputs in combination with reverse
recovery of the body diodes of the output driver MOSFETs. Even small trace inductivities as can easily
generate a few volts of ringing leading to temporary voltage overshoot. This should be considered when
working near the maximum voltage.
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