TPS65381QDAPRQ1

多轨电源为微控制器的安全关键型应用 Multi-Rail Power Supply for Microcontrollers in Safety-Critical Applications

The 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.

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Qualified for automotive applications

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AEC-Q100 Qualified

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Multi-rail power supply supporting among others

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6V Asynchronous switch-mode preregulator with internal FET, 1.3A Current-limit

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5V CAN Supply voltage, linear regulator with internal FET, 350mA Current-limit

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3.3 or 5V MCU I/O Voltage, linear regulator with internal FET, 350mA Current-limit

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0.8 to 3.3V Adjustable MCU core voltage, linear regulator controller With external FET

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Sensor Supply - Linear tracking regulator with tracking input, 100mA Current limit

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Charge pump typical 12V above battery voltage

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Undervoltage/overvoltage monitoring on all regulator outputs, battery voltage, internal supplies

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Microcontroller interface

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Enable-Drive output for disabling safing-path or external power-stages on detected SystemFailure

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Wake-Up through IGNI ON Pin or CAN WAKEUP pin