TPS1HC100-Q1
ZHCSLK6A –JULY 2021 –REVISED DECEMBER 2021
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5.1 Recommended Connections for Unused Pins
The TPS1HC100-Q1 is designed to provide an enhanced set of diagnostic and protection features. However, if
the system design only allows for a limited number of I/O connections, some pins can be considered as optional.
表5-2. Connections For Optional Pins
PIN NAME
CONNECTION IF NOT USED
IMPACT IF NOT USED
SNS
Analog sense is not available.
Ground through 1-kΩresistor
With LATCH unused, the device auto-retries after a fault. If latched
Float or ground through RPROT behavior is desired, but the system describes limited I/O, it is possible to
LATCH
ILIM
resistor
use one microcontroller output to control the latch function of several high-
side channels.
If the ILIM pin is left floating, the device is set to the default internal current-
limit threshold.
Float
Float or ground through RPROT With DIA_EN unused, the analog sense, open-load, and short-to-battery
DIA_EN
FAULT
resistor
diagnostics are not available.
Float
Open drain FAULT signal is not able to be used
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