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
Key Features
- 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
Applications
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) |
Alternate & Equivalent Parts
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.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
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.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”