STMicroelectronics VNQ830-E

Overview

VNQ830-E from STMicroelectronics is a quad-channel high-side driver IC fabricated in VIPower M0-3 technology, designed for automotive and industrial load switching with ground-referenced loads. It integrates two VND830-E dies in a single SO-28 double-island package, delivering 6 A per channel, 60 mΩ R_DS(on), and operation up to 36 V V_CC. It supports open-load detection (on/off state), short-circuit protection, thermal shutdown, reverse-battery protection, and ISO 7637-2 transient immunity - deployed in body control modules for lighting, solenoid, and relay driving.

For engineers reviewing the VNQ830-E datasheet, VNQ830-E pinout, VNQ830-E application, or VNQ830-E equivalent, this page provides verified functional specifications, validated SO-28 double-island pin mapping, real-world diagnostic behavior (e.g., status pin logic under overload/overtemperature), and direct alternatives with documented electrical and protection-level differences.

Technical Context

The VNQ830-E implements four independent high-side switches, each with CMOS-compatible input logic, open-drain status output, and integrated current limiting (6–15 A), thermal shutdown (150–200 °C trip), and voltage clamping (V_CC clamp ±41 V). Each channel features dual open-load detection: on-state via current threshold (50–200 mA) and off-state via output voltage threshold (1.5–3.5 V) requiring external pull-up.

Protection architecture includes loss-of-ground detection (automatic turn-off on GND disconnect), undervoltage (3–5.5 V) and overvoltage (36 V) shutdown, and reverse-battery tolerance via internal diode structure. The SO-28 double-island layout thermally isolates two pairs of channels (Ch1/Ch2 and Ch3/Ch4), enabling independent thermal management per island with R_thj-amb = 44 °C/W (one chip ON, 6 cm² Cu).

Key Specifications

Pinout & Package

SO-28 package with double-island construction: two electrically isolated thermal islands (Island 1: Pins 1–14; Island 2: Pins 15–28), each hosting two high-side channels. Pin assignment follows Figure 3 (top view) and Table 2 configuration diagram.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VNQ830-E, STVN830MTR-E sacrifices automotive-grade transient and reverse-battery robustness for lower cost, while BTS724G trades analog diagnostic simplicity for digital configurability and higher current - making VNQ830-E optimal for analog-status-based BMS and legacy ECU designs.

Availability

VNQ830-E is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, truck lighting systems, and off-highway equipment power distribution requiring stable component supply and long-term lifecycle support.

Supply support for VNQ830-E 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, industrial, and power management ICs with vertical manufacturing and AEC-Q100 qualification expertise.

The VNQ830-E belongs to ST's VIPower family of intelligent power switches, engineered specifically for automotive-grade high-side load control with integrated diagnostics, protection, and ruggedized packaging for under-hood deployment.

FAQ

What is the maximum continuous current per channel, and how is it thermally sustained?

The VNQ830-E delivers 6 A continuous per channel when mounted on a standard FR-4 PCB with 6 cm² of 35 µm-thick copper connected to all V_CC pins per island. Thermal resistance is 44 °C/W (one chip ON) and 31 °C/W (both chips ON), enabling full-rated current without external heatsink under natural convection. Derating applies below 6 cm² copper area per island.

How does off-state open-load detection work, and what external components are required?

Off-state open-load detection relies on an external pull-up resistor (R_PU) between OUTPUT and V_PU (e.g., +5 V). When the load is disconnected, output voltage rises above 1.5–3.5 V, triggering STATUS high. R_PU must satisfy two constraints: (1) keep V_OUT < 1.5 V when load is connected, and (2) ensure V_OUT > 3.5 V when open - typically 10–47 kΩ depending on load resistance and V_PU.

Does the VNQ830-E support reverse-battery operation, and how is it implemented?

Yes - the VNQ830-E incorporates internal reverse-battery protection via its VIPower M0-3 process. It withstands −0.3 V applied to V_CC and −6 A reverse current at OUTPUT pins. For full system-level protection, ST recommends either a series resistor (R_GND ≤ 600 mV / 2×I_S(on)max) or Schottky diode (D_GND) in the ground path, as detailed in Figure 8.

What diagnostic signals does the STATUS pin provide, and how are they interpreted?

The STATUS pin is open-drain and pulled low during normal on-state operation. It goes high-impedance (requiring external pull-up) during off-state, overload, overtemperature, undervoltage, overvoltage, or open-load conditions. Truth Table (Table 12) defines exact logic states: e.g., STATUS high with INPUT high indicates overload; STATUS low with INPUT low indicates normal off-state. Delay times (t_DOL(on) = 200 µs, t_SDL = 20 µs) define response timing.