STMicroelectronics VNQ810

Overview

VNQ810 from STMicroelectronics is a quad-channel high-side driver IC formed by integrating two VND810 monolithic VIPower M0-3 devices in a single SO-28 (double island) package. It delivers 3.5A per channel, 160mΩ R_DS(on), and operates from 5.5V to 36V V_CC. Designed for automotive body control modules, it provides on/off-state open-load detection, short-circuit protection, reverse-battery immunity, and loss-of-ground shutdown.

For engineers reviewing the VNQ810 datasheet, VNQ810 pinout, VNQ810 application, or VNQ810 equivalent, this page consolidates verified electrical characteristics, thermal behavior under PCB copper area variation, ISO7637-2 transient compliance (Pulses 1–5 Class C), truth table logic states, and diagnostic timing parameters critical for robust load switching in 12V/24V vehicle networks.

Technical Context

The VNQ810 implements four independent high-side switches with CMOS-compatible inputs and open-drain status outputs per channel. Each channel integrates active current limiting (5.5–7.5A typ.), thermal shutdown (150–200°C trip), undervoltage (4V typ.) and overvoltage (36V) protection, plus dedicated circuitry for open-load detection in both ON (20–80mA threshold) and OFF (1.5–3.5V threshold) states.

Its dual-island SO-28 package thermally isolates two pairs of channels-VCC1/GND1/INPUT1–2/OUTPUT1–2/STATUS1–2 and VCC3/GND3/INPUT3–4/OUTPUT3–4/STATUS3–4-enabling independent thermal management. The integrated V_CC clamp protects against low-energy transients per ISO7637-2 Pulse 2a/2b, while the output diode (V_F = 0.6V @ 0.5A, T_j = 150°C) supports demagnetization energy handling up to 23mJ.

Key Specifications

Pinout & Package

SO-28 package with double-island thermal layout: two electrically isolated islands (Island 1: Pins 1–14; Island 2: Pins 15–28), each containing two complete high-side driver channels with dedicated V_CC, GND, INPUT, OUTPUT, and STATUS pins.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad high-side driver applications.

Compared with VNQ810, STVN810SPTR trades integration for modularity and thermal granularity, while BTS716G adds digital configurability at the cost of analog simplicity and higher BOM complexity-making VNQ810 optimal for cost-sensitive, analog-diagnostic automotive power distribution where SO-28 thermal partitioning is critical.

Availability

VNQ810 is available at Aetrix Electronics and suitable for automotive body control modules, smart junction boxes, engine bay fan controllers, and commercial vehicle trailer interfaces requiring stable component supply and long-lifecycle support.

Supply support for VNQ810 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive-grade power ICs, microcontrollers, and sensors with ISO/TS 16949-certified manufacturing.

The VNQ810 belongs to ST's VIPower family of high-voltage intelligent power switches, engineered specifically for automotive power distribution and load driving with integrated protection and diagnostics to meet stringent AEC-Q100 Grade 0 reliability requirements.

FAQ

What is the maximum continuous output current per channel?

The VNQ810 supports 3.5A continuous output current per channel under specified thermal conditions (T_j ≤ 150°C, R_thj-amb ≤ 44°C/W with 6cm² PCB copper). Derating applies above 100°C junction temperature, and current limiting activates at 5.5–7.5A depending on V_CC and case temperature.

How does open-load detection work in the OFF state?

In the OFF state, the VNQ810 applies a weak internal current source to the OUTPUT pin and monitors voltage. If the output is open (floating), V_OUT rises above 1.5–3.5V, triggering STATUS low. If shorted to V_CC, V_OUT remains near V_CC, and STATUS stays high-enabling distinction between open and short faults without external circuitry.

Can VNQ810 drive inductive loads like relays or solenoids?

Yes-the VNQ810 integrates an internal clamp diode (V_F = 0.6V @ 0.5A) and supports demagnetization energy up to 23mJ (L = 2.5mH, V_BAT = 13.5V). Its turn-off voltage slope (dV_OUT/dt) is controlled to limit induced voltage spikes, making it suitable for automotive relays, fuel injectors, and valve actuators.

Is VNQ810 still in active production?

The VNQ810 is marked "Obsolete Product(s)" in ST's official documentation (Rev 4, Sept 2013), but Aetrix Electronics maintains legacy inventory and offers extended lifecycle support-including traceable batch sourcing, obsolescence forecasting, and cross-reference guidance-for customers maintaining existing automotive platforms.