Infineon Technologies AG Announces New Automotive-Qualified High-Side Power Switch Integrated Circuits
Infineon Introduces BTH50030-1LUA: A High-Current Smart High-Side Power Switch for 24/48V Automotive Systems
Infineon Technologies has expanded its Power PROFET™ + 24/48V family with the introduction of the BTH50030-1LUA, a high-performance, single-channel smart high-side power switch. This automotive-qualified (AEC-Q100 compliant) device boasts an extremely low on-resistance (RDS(on)) of just 3.0 milli-ohms (typical) and is housed in a compact 8-pin TO-leadless package. The BTH50030-1LUA is specifically designed to drive high-current loads up to 25 A in 24 V and 48 V power nets, making it ideal for demanding automotive applications such as heaters, glow plugs, fans, and pumps operating in harsh automotive environments.
This smart high-side power switch offers accurate current sensing and reliable power distribution while maintaining a small footprint suitable for designs with limited board space. Its robust design also supports long wiring harnesses, providing flexibility in system integration.
Key Features of the BTH50030-1LUA:
- Ultra-Low On-Resistance (RDS(on)): A typical RDS(on) of 3.0 milli-ohms minimizes power dissipation and improves overall system efficiency, reducing heat generation and improving reliability.
- Designed for 24 V and 48 V Power Nets: Optimized for use in both 24 V and 48 V automotive power systems, addressing the evolving needs of modern vehicles.
- Robust Load Dump Capability: Withstands load dump voltages up to 70 V, providing protection against transient voltage surges in automotive electrical systems.
- Cranking Pulse Compatibility: Designed to operate reliably during engine cranking events, ensuring continuous functionality even under challenging voltage conditions.
- Integrated Diagnostic Functions: Provides comprehensive diagnostic capabilities, including current sensing and fault detection, enabling system monitoring and improved reliability.
- Comprehensive Integrated Protection Functions: Incorporates a suite of protection features to safeguard the device and the load:
- Over-current protection: Limits current flow in the event of an overcurrent condition.
- Over-load protection: Protects the device from sustained overload conditions.
- Over-temperature protection: Prevents thermal damage by shutting down the device when the temperature exceeds safe limits.
- Over-power protection: Limits power dissipation to prevent damage due to excessive power levels.
- Low Standby Current: Consumes a low standby current of only 7 µA, minimizing battery drain when the device is not actively switching.
- AEC-Q100 Qualification: Meets the stringent requirements of the AEC-Q100 automotive qualification standard, ensuring high reliability and performance in automotive environments.
- Compact 8-Pin TO-Leadless Package: Enables space-saving designs and facilitates automated assembly.
Target Applications of the BTH50030-1LUA:
The BTH50030-1LUA is well-suited for a wide range of automotive applications, including:
- Different kinds of loads in automotive systems.
- Body Control Modules (BCM) for 24V commercial vehicles.
- Replacement of traditional relays and fuses, offering improved performance and reliability.
- Power distribution in 24/48 V power nets.
- Heating systems, fans, and pumps.
- PWM applications with low frequencies.
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