VNQ500 STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
STMicroelectronics VNQ500 is a quad-channel high-side power switch with integrated protection for 12 V automotive and industrial loads. Each channel handles up to 0.5 A continuous current with overtemperature, overcurrent, and short-circuit protection. Available from stock worldwide with fast shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 13
- Lifecycle
- ACTIVE
- Datasheet
- VNQ500 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of VNQ500?
- 4 independent high-side MOSFET channels each rated for 0.5 A continuous current with very low RDS(on) reducing conduction losses
- Integrated overtemperature, overcurrent, and short-circuit protection with diagnostic feedback per channel for robust automotive relay replacement
- Logic-level compatible enable inputs operable from 3.3 V or 5 V microcontrollers without external level-shift circuits
- Operates from a 5.5 V to 36 V supply rail covering 12 V and 24 V automotive and industrial battery systems
What is VNQ500 used for?
The VNQ500 is designed for automotive body-control modules and industrial I/O cards where multiple resistive and inductive loads such as lamps, relays, solenoids, and heaters must be switched from a single logic IC. Its 4-channel architecture with per-channel fault diagnostics enables microcontrollers to monitor load open-circuit and short-circuit conditions without discrete sense resistors. The wide supply range of 5.5 V to 36 V and integrated protection make it equally effective in 12 V and 24 V truck or off-road vehicle electrical systems.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the VNQ500 datasheet?
VNQ500 Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for VNQ500?
Compatible alternatives and drop-in replacements for VNQ500:
Frequently Asked Questions
What continuous current and supply voltage range does each VNQ500 channel support?
Each of the 4 channels in the VNQ500 can switch up to 0.5 A of continuous load current, while the device operates from supply voltages between 5.5 V and 36 V. This covers standard 12 V automotive systems as well as 24 V truck and industrial panel applications with adequate margin against load transients and battery surges.
How does the VNQ500 protect against short-circuit faults in automotive lamp or solenoid circuits?
The VNQ500 includes per-channel current limiting and thermal shutdown that activates when the junction temperature approaches 150°C. Upon fault detection, the affected channel turns off and asserts a diagnostic output signal that a microcontroller can read via a GPIO or SPI status register, allowing controlled fault recovery without damaging the device or wiring harness.
Can the VNQ500 be driven directly from a 3.3 V microcontroller GPIO in an automotive MCU design?
Yes. The VNQ500's enable inputs are compatible with logic-level signals from 3.3 V and 5 V microcontrollers, requiring no external level-shift or buffer ICs. This simplifies the interface between a 3.3 V automotive MCU and the 12 V load-switching stage, reducing BOM count by at least 4 transistors or a dedicated level-shift IC.
In what package does the VNQ500 ship, and how does it fit a compact automotive ECU layout?
The VNQ500 is supplied in a small outline (SO) package, which integrates 4 high-side switches in a footprint smaller than using 4 discrete MOSFETs with separate gate-drive resistors. The single-chip solution with on-board protection logic reduces the PCB area needed for load switching by roughly 60% compared to a discrete implementation, facilitating dense automotive ECU board designs.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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