ZHCSJZ7B june 2019 – february 2023 TPS1HB35-Q1
PRODUCTION DATA
The TPS1HB35-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.
| PIN NAME | CONNECTION IF NOT USED | IMPACT IF NOT USED |
|---|---|---|
| SNS | Ground through 1-kΩ resistor | Analog sense is not available. |
| LATCH | Float or ground through RPROT resistor | With LATCH unused, the device auto-retries after a fault. If latched behavior is desired, but the system describes limited I/O, it is possible to use one microcontroller output to control the latch function of several high-side channels. |
| ILIM (Version A/B) | Float | If the ILIM pin is left floating, the device is set to the default internal current-limit threshold. |
| FAULT (Version F) | Float | Open drain FAULT signal is not able to be used |
| SEL1 | Ground through RPROT | SEL1 selects the TJ sensing feature. With SEL1 unused, only current sensing and open load detection are available. If unused, must be grounded through a resistor to engage FET turn-on during reverse battery. |
| DIA_EN | Float or ground through RPROT resistor | With DIA_EN unused, the analog sense, open-load, and short-to-battery diagnostics are not available. |