Intelligent High-Side Switches from Diodes Incorporated Deliver Combined Protection
Diodes Incorporated has expanded its IntelliFET® portfolio with the introduction of three new automotive-compliant high-side power switches. Announced on November 10, 2026, this product family includes the second-generation single-channel ZXMS81030SPQ and two dual-channel devices, the ZXMS82030S14PQ and ZXMS82045S14PQ. These devices are specifically designed to provide combined protection and diagnostic capabilities for 12V automotive loads.
These high-side switches offer a smaller, more reliable alternative to traditional relays, fuses, and discrete components often used for driving 12V automotive loads. Diodes Incorporated highlights their suitability for applications such as automotive motors in body and seat control modules, heating, ventilation and air conditioning (HVAC) systems, and various automotive lighting applications. The integrated protection and diagnostic features are crucial for ensuring the safe operation of these electrical loads.
At their core, each switch integrates a vertical DMOS N-channel MOSFET with an embedded controller. This architecture enables a comprehensive suite of protection functions, including short-circuit protection, efficient inrush current management, and safeguarding against overvoltage conditions like load dumps. Furthermore, the devices incorporate overtemperature protection with automatic restart and protection against electrostatic discharge (ESD) damage. Loss-of-ground and reverse-polarity protection can also be implemented with minimal external components.
Another significant characteristic of the IntelliFET devices is their integrated diagnostic functionality. Onboard diagnostics are capable of detecting various fault conditions and self-protection events, such as open-load conditions, overloads, and overtemperature shutdowns. These capabilities provide valuable information regarding the health of both the device and the connected load. By consolidating switching, protection, and diagnostics into a single component, these products effectively meet the demanding requirements for driving automotive electrical loads.
Source Link: Press Release
Specifications
| Product Family | Channel Configuration | MOSFET Architecture | Package Options |
|---|---|---|---|
| Diodes Incorporated IntelliFET® (ZXMS81030SPQ, ZXMS82030S14PQ, ZXMS82045S14PQ) | Single or Dual | Vertical DMOS N-channel MOSFET | SO-8EP (single), SO-14EP (dual) |
Key Features
- Three automotive-compliant high-side switches: The expanded IntelliFET® portfolio includes three devices designed for driving 12V automotive loads, combining switching functionality with protection and diagnostics.
- Single-channel and dual-channel configurations: The product family includes the second-generation single-channel ZXMS81030SPQ and the dual-channel ZXMS82030S14PQ and ZXMS82045S14PQ.
- Integrated MOSFET and controller: Each device incorporates a vertical DMOS N-channel MOSFET together with an integrated controller for managing switching and protection functions.
- High inrush current handling: The switches are designed to handle high inrush current loads and incorporate inrush current management.
- Short-circuit protection: The integrated controller protects against short-circuit conditions.
- Overvoltage and load-dump protection: The devices safeguard against overvoltage conditions, including load dumps.
- Overtemperature protection with automatic restart: The switches incorporate overtemperature protection with an auto-restart function.
- Electrostatic discharge protection: Integrated protection safeguards the devices against electrostatic discharge (ESD) damage.
- Loss-of-ground and reverse-polarity protection: These protection functions can be implemented using minimal external components.
- Integrated diagnostic capabilities: Onboard diagnostics detect fault conditions and self-protection events, including open-load conditions, overloads, and overtemperature shutdown.
- Thermally efficient package construction: The ZXMS81030SPQ uses an SO-8EP package, while the ZXMS82030S14PQ and ZXMS82045S14PQ use SO-14EP packages. Both package types feature exposed underside heatsinks.
- Automotive-compliance qualification: The devices are AEC qualified, manufactured in facilities certified to IATF 16949, and support PPAP documents.
Applications
- 12V automotive load switching
- Body control modules
- Seat control modules
- HVAC systems
- Automotive lighting
- 48V automotive power tree demonstrations
- Switched 12V power output with protection and diagnostics
Availability
The three automotive-compliant IntelliFET® high-side power switches from Diodes Incorporated are available in production quantities. The ZXMS81030SPQ, a second-generation single-channel switch supplied in an SO-8EP package, is available at $0.38 per unit. The dual-channel ZXMS82030S14PQ and ZXMS82045S14PQ, supplied in SO-14EP packages, are each available at $0.71 per unit. These prices are quoted for quantities of 1,000 pieces.
