STMicroelectronics VNQ600PTR-E

Overview

VNQ600PTR-E from STMicroelectronics is a quad-channel high-side driver IC designed for automotive and industrial load switching applications, featuring 35 mΩ R_DS(on) per channel, 25 A DC short-circuit current limit, proportional analog current sense outputs, and integrated protections including undervoltage/overvoltage shutdown, thermal shutdown, reverse battery protection, and loss-of-ground detection. It operates from 5.5 V to 36 V and drives grounded loads in engine control units, body electronics, and smart junction boxes.

For engineers reviewing the VNQ600PTR-E datasheet, VNQ600PTR-E pinout, VNQ600PTR-E application, or VNQ600PTR-E equivalent, key selection considerations include its SO-28 double-island package thermal performance, four independent current-sense channels with ±10% ratio drift over temperature, ISO 7637-2 transient immunity (Class C up to Pulse 3b), and diagnostic capability via voltage-proportional I_SENSE outputs.

Technical Context

The VNQ600PTR-E integrates two identical VNQ600P-E dies in a single SO-28 package with electrically isolated islands, each driving two independent high-side outputs. Each channel uses ST's VIPower M0-3 technology to combine vertical power MOSFETs with CMOS logic, enabling precise current limiting (25 A typ.), fast switching (40 μs turn-on/off delay), and robust fault handling without external components.

Its protection architecture includes autonomous responses: overvoltage clamp at 41–55 V, thermal shutdown at 150–200 °C with 135 °C reset hysteresis, and automatic disable on ground disconnection. The analog current sense outputs (K = 3300–6000 A/A) deliver linear, temperature-compensated signals referenced to V_CC, supporting real-time load monitoring and closed-loop diagnostics.

Key Specifications

Pinout & Package

Package: SO-28 (double island), 300 mil width, exposed thermal pad (connected to V_CC pins), RoHS-compliant, rated for T_j = -40 °C to 150 °C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS4H160-Q1, VNQ600PTR-E offers superior fault resilience (reverse battery, loss-of-ground) and higher current capability; compared with STSPIN32F0B, it provides simpler, deterministic analog diagnostics without MCU dependency or firmware validation burden.

Availability

VNQ600PTR-E is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, and commercial vehicle power distribution systems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for VNQ600PTR-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-grade power ICs, microcontrollers, and sensors with ISO/TS 16949-certified manufacturing.

The VNQ600PTR-E belongs to ST's VIPower™ high-side driver family, engineered specifically for automotive power distribution and load management where functional safety, diagnostic integrity, and ruggedness against electrical transients are mandatory.

FAQ

What is the maximum continuous output current per channel?

The VNQ600PTR-E supports 15 A continuous output current per channel at T_case ≤ 100 °C with adequate PCB copper area (6 cm²). Its 25 A DC short-circuit current limit activates only during fault conditions and is thermally regulated to prevent damage. Derating curves in Table 13 of the datasheet define exact current vs. ambient temperature limits based on thermal resistance.

How does the current sense output interface with a microcontroller?

The CS1–CS4 pins deliver a current source (I_SENSE = I_OUT/K) requiring an external pull-up resistor (typically 3.9 kΩ to V_CC) to generate a 0–4 V analog voltage. This signal connects directly to an MCU's ADC input; K varies from 3300 to 6000 A/A depending on load current and temperature, with ±10% total error budget. No amplification or level-shifting is needed for 3.3 V or 5 V MCUs.

Can VNQ600PTR-E drive inductive loads like solenoids without external flyback diodes?

Yes - the device integrates active demagnetization energy clamping (V_demag = V_CC − 41 V) and supports up to 126 mJ switching energy per channel. For standard 12 V automotive solenoids (L ≈ 0.11 mH), no external diode is required. However, for high-inductance loads (>10 mH) or 24 V systems, external clamping may still be advised per Figure 19 in the datasheet.

What is the significance of the SO-28 "double island" package?

The double-island SO-28 physically separates the two internal VNQ600P-E dies into electrically isolated thermal domains, each with dedicated V_CC and GND pins. This enables independent thermal management, fault containment (a short on one island doesn't disable the other), and improved reliability in safety-critical applications - unlike monolithic quad drivers where a single failure can compromise all channels.