Infineon BTS70302EPAXUMA1: The High-Performance High-Current Smart High-Side Power Switch
In the realm of automotive and industrial electronics, the demand for robust, intelligent, and highly efficient power switching solutions is ever-increasing. The Infineon BTS70302EPAXUMA1 stands out as a premier example of a high-current smart high-side power switch engineered to meet these rigorous demands. This device integrates advanced protection features, diagnostic capabilities, and high switching performance into a single, compact package, making it an ideal choice for a wide array of applications.
At its core, the BTS70302EPAXUMA1 is a dual-channel high-side switch based on Infineon’s proven SMART7 technology. Each channel is capable of handling a continuous current of up to 30 A, with an operating voltage range from 5.5 V to 40 V, suiting it perfectly for 12 V and 24 V automotive battery systems. This high current-carrying capacity allows it to drive demanding loads such as heating elements, motors, and high-power LEDs directly, without the need for additional external drivers or complex circuitry.
One of the most significant advantages of this power switch is its intelligent integration and diagnostic feedback. The device provides comprehensive real-time status information via a dedicated diagnosis pin, including feedback on load current (via a proportional current sense pin), over-load conditions, short-circuit events, and overtemperature shutdown. This level of diagnostics is crucial for designing fail-operational and fail-safe systems in automotive applications, enabling the microcontroller to take immediate and appropriate action in case of a fault.
Robustness and reliability are paramount. The BTS70302EPAXUMA1 is designed to withstand the harsh electrical environments typical in automobiles. It offers excellent protection against reverse battery conditions (-40 V) and load-dump events. Its integrated protection mechanisms include overcurrent limitation (with active current clamping), overtemperature shutdown with automatic restart, and undervoltage lockout. Furthermore, its very low typical on-state resistance (RDS(on)) of just 2.7 mΩ per channel minimizes power dissipation and reduces heat generation, enhancing both efficiency and long-term reliability.
Housed in a space-saving, surface-mountable PG-DSO-20-47 package, the device also features low electromagnetic emission (EME) and high electromagnetic immunity (EMI), which are critical for complying with strict automotive EMC standards. Its green (halogen-free and RoHS compliant) packaging also aligns with modern environmental regulations.
ICGOOODFIND: The Infineon BTS70302EPAXUMA1 is a superior, highly integrated dual-channel high-side switch that sets a high standard for power management. Its blend of high-current capability, extensive diagnostic features, and exceptional robustness makes it an indispensable component for enhancing the performance, safety, and intelligence of modern automotive and industrial power systems.
Keywords: High-Current Switch, SMART7 Technology, Diagnostic Feedback, Automotive Grade, Overcurrent Protection.
