The TPS65381QDAPRQ1 is a Multi-Rail Power Supply IC designed to supply microcontrollers (MCUs). The device integrates multiple supply rails to power the MCU, CAN or FlexRay and an external sensor. The device comprises a linear regulator controller with an external FET and resistor divider that regulates the 6V to an externally adjustable core voltage of between 0.8V and 3.3V. The device comprises a sensor supply with short-to-ground and short-to-battery protection. Therefore this supply can power a sensor outside the electronic-control unit (ECU). The device has an integrated charge pump to provide overdrive voltage for the internal regulators. Reverse-battery protection is obtained by using the charge-pump output to control an external NMOS transistor.
● Qualified for automotive applications
● AEC-Q100 Qualified
● Multi-rail power supply supporting among others
● 6V Asynchronous switch-mode preregulator with internal FET, 1.3A Current-limit
● 5V (CAN) Supply voltage, linear regulator with internal FET, 350mA Current-limit
● 3.3 or 5V MCU I/O Voltage, linear regulator with internal FET, 350mA Current-limit
● 0.8 to 3.3V Adjustable MCU core voltage, linear regulator controller With external FET
● Sensor Supply - Linear tracking regulator with tracking input, 100mA Current limit
● Charge pump typical 12V above battery voltage
● Undervoltage/overvoltage monitoring on all regulator outputs, battery voltage, internal supplies
● Microcontroller interface
● Enable-Drive output for disabling safing-path or external power-stages on detected SystemFailure
● Wake-Up through IGNITION Pin or CAN WAKEUP pin
