AUIPS6011RTRL: A High-Side Switch for Robust Automotive Load Control
The increasing electrification of modern vehicles demands robust and reliable solutions for managing a growing array of electronic loads. From powertrain systems and lighting to comfort features and advanced driver-assistance systems (ADAS), each load requires precise and protected switching. The AUIPS6011RTRL from Infineon Technologies stands out as a critical component engineered to meet these stringent automotive requirements, offering a superior blend of integration, protection, and diagnostics.
As a high-side switch, the AUIPS6011RTRL is designed to control the power supply (VBAT) to a load, positioning it between the positive supply and the load itself. This architecture is often preferred over low-side switching for safety reasons, as it avoids grounding the load, which can reduce the risk of short circuits and simplify wiring. The device is capable of driving a wide range of resistive, capacitive, and inductive loads, such as solenoids, valves, motors, and lamps, with a continuous output current of up to 11A.
The core strength of the AUIPS6011RTRL lies in its comprehensive suite of integrated protection features, which are paramount for the harsh automotive environment. These include:
Over-Current Protection (OCL): The device monitors the output current and will shut down the power MOSFET if a short-circuit or excessive current draw is detected, safeguarding both the switch and the downstream circuitry.
Over-Temperature Protection (OTP): An internal temperature sensor prevents thermal runaway by disabling the output if the junction temperature exceeds a safe threshold, automatically resuming operation once it has cooled.
Over-Voltage Protection (OVP): Clamping circuits protect the switch from voltage transients commonly found in automotive systems, such as load-dump events.
Under-Voltage Lockout (UVLO): This feature ensures the device remains off if the supply voltage is too low for proper operation, preventing erratic behavior.
Furthermore, the device provides essential diagnostic feedback through a status output pin. This open-drain pin can signal fault conditions like over-current, over-temperature, or open-load (when the device is off) back to the microcontroller (MCU), enabling predictive maintenance and swift system diagnosis. This diagnostic capability is crucial for functional safety applications and is a key enabler for ISO 26262 compliant systems.
Housed in a compact, surface-mount TO-263 (D2PAK) package, the AUIPS6011RTRL offers excellent power dissipation. Its AEC-Q100 qualification guarantees its performance and reliability across the demanding automotive temperature range (-40°C to 125°C), ensuring long-term durability under the hood.
ICGOOODFIND: The AUIPS6011RTRL is an exemplary high-side power switch that encapsulates the essential qualities for modern automotive design: high current handling, robust integrated protection, and advanced diagnostic capabilities. It simplifies design-in, enhances system resilience, and provides the intelligence required for next-generation vehicle architectures.
Keywords:
1. High-Side Switch
2. Automotive Grade
3. Over-Current Protection
4. Diagnostic Feedback
5. AEC-Q100 Qualified
