BTS282ZE3180A: Technical Specifications and Application Analysis
The BTS282ZE3180A represents a sophisticated class of high-side power switch engineered for robust performance in demanding automotive and industrial environments. As a PROFET™ (Protected MOSFET) device from Infineon Technologies, it integrates advanced protective functions and diagnostic capabilities into a single, compact package. This component is specifically designed to drive resistive or inductive loads with high inrush currents, such as lamps, valves, or motors, making it a cornerstone in modern electronic power distribution systems.
Technical Specifications
Constructed using SMART technology, the BTS282ZE3180A is built on a p-channel vertical power MOSFET structure. Its primary electrical characteristics define its application scope:
Output: It features a single channel with a continuous output current rating of 11 A, capable of handling much higher pulse currents.
Voltage Range: The device operates from a nominal supply voltage of 12 V, with a maximum operating voltage of 40 V, offering ample headroom for load-dump conditions common in automotive systems.
On-State Resistance (RDS(on)): A key efficiency metric, its typical RDS(on) is exceptionally low, typically around 18 mΩ, which minimizes power dissipation and heat generation during operation.
Protection Features: The integration of comprehensive protection is its hallmark. This includes overload and short-circuit protection, overtemperature shutdown with automatic restart, and overvoltage protection (including load-dump). These features safeguard both the switch itself and the connected load.
Diagnostic Feedback: It provides a sophisticated current sense diagnostic output proportional to the load current. This enables the microcontroller to detect open-load conditions, short-circuits to ground or battery, and overtemperature pre-warning, which is critical for functional safety.
Package: Housed in a TO-263-7 (D2PAK) surface-mount package, it offers excellent thermal performance for power dissipation while being suitable for automated PCB assembly.
Application Analysis
The BTS282ZE3180A excels in a wide array of applications where reliability and diagnostic intelligence are paramount.
1. Automotive Body Electronics: It is ideally suited for controlling automotive lighting systems, including headlights, daytime running lights (DRLs), and fog lights. Its ability to handle the high inrush current of incandescent or LED bulbs and provide diagnostic feedback on bulb failure is a significant advantage. It is also used in window lift, seat control, and heater module systems.
2. Industrial Automation: In control panels and programmable logic controllers (PLCs), this switch can reliably drive solenoids, small DC motors, and actuators. The robust protection ensures operational stability in electrically noisy environments, preventing damage from accidental short circuits or voltage transients.
3. Power Distribution Units (PDUs): Its combination of high current handling and diagnostic capabilities makes it a perfect candidate for intelligent high-side switching in centralized power distribution modules. It allows for precise monitoring and control of individual power channels.
The primary advantages of using the BTS282ZE3180A are its high level of integration, which reduces the need for external protection components, and its advanced diagnostic features, which enable predictive maintenance and system health monitoring. This leads to more reliable end-products and simplified system design.
The BTS282ZE3180A is a highly integrated and intelligent high-side power switch that sets a benchmark for reliability and diagnostic capability in 12V systems. Its robust protective features and efficient performance make it an optimal solution for automotive and industrial applications demanding safe and intelligent power management.
Keywords:
1. PROFET™
2. High-Side Switch
3. Diagnostic Feedback
4. Overcurrent Protection
5. Automotive Grade
