STMicroelectronics VNQ500PEPTR-E

Overview

VNQ500PEPTR-E from STMicroelectronics is a quad-channel high-side driver IC in PowerSSO-12 package, designed for ground-referenced resistive/inductive loads in automotive and industrial power distribution. It features 500 mΩ typical on-state resistance, 0.4 A current limitation, junction overtemperature latching at 150–200 °C, and integrated undervoltage shutdown (4 V typ). Used in body control modules to drive lamps, solenoids, and actuators with diagnostic feedback.

For engineers reviewing the VNQ500PEPTR-E datasheet, VNQ500PEPTR-E pinout, VNQ500PEPTR-E application, or VNQ500PEPTR-E equivalent, key selection criteria include channel independence, loss-of-ground protection, short-circuit diagnostics via I/O pin pull-down, and ISO 7637-2 transient immunity up to ±100 V.

Technical Context

The VNQ500 integrates four independent VIPower M0-3 high-side switches with CMOS-compatible inputs, chip enable (CE), and per-channel thermal shutdown latching. Each channel combines active current limiting (0.4 A typ) with voltage-controlled turn-off clamp (VCC − 41 V) and demagnetization energy handling up to 100 mJ at 13.5 V.

It implements loss-of-ground detection by monitoring GND pin continuity and forces all outputs OFF upon disconnection. Protection logic includes undervoltage lockout (4 V typ), overvoltage shutdown (36 V), and ESD tolerance (4 kV HBM on I/O, 5 kV on VCC).

Key Specifications

Pinout & Package

Package: PowerSSO-12 - thermally enhanced exposed-tab SO-12 with integrated heat slug, optimized for PCB copper area ≥8 cm² to achieve R_thj-amb = 50 °C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VNQ500PEPTR-E, STSPIN250TR trades integration and diagnostics for lower R_ON and footprint, while TLE7231G adds digital interface and open-load detection at the cost of MCU dependency and higher system-level complexity.

Availability

VNQ500PEPTR-E is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, and off-highway equipment power distribution requiring stable component supply, long lifecycle support, and AEC-Q100-compliant sourcing.

Supply support for VNQ500PEPTR-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 VNQ500 belongs to ST's VIPower high-side driver product line, engineered specifically for robust, diagnostic-rich power switching in harsh automotive and industrial environments where reliability under electrical stress is critical.

FAQ

What is the function of the CE (Chip Enable) pin?

The CE pin is an active-high global enable that controls all four channels simultaneously. When CE is low, all outputs are forced OFF regardless of I/O pin states. It accepts standard CMOS logic levels (VIH ≥ 3.25 V, VIL ≤ 1.25 V) and draws ≤10 µA, making it directly compatible with 3.3 V or 5 V microcontrollers without level-shifting.

How does the VNQ500 handle inductive load turn-off?

During turn-off of inductive loads, the VNQ500 activates an internal clamp that limits output voltage to VCC − 41 V (min), safely dissipating demagnetization energy. This eliminates the need for external flyback diodes or TVS devices, and the clamp operates independently per channel with controlled dV/dt (0.3 V/µs) to minimize EMI generation.

Can the VNQ500 be used in 24 V commercial vehicle systems?

Yes - the VNQ500 operates from 5.5 V to 36 V and withstands 41 V absolute maximum supply, covering 24 V nominal systems including cold-crank (down to 6 V) and load-dump events (up to 35 V typical, 86.5 V per ISO 7637-2 Pulse 5a). Its thermal shutdown and current limiting remain fully functional across this full range.

What happens during a loss-of-ground fault?

When the GND pin disconnects, the VNQ500 detects loss of reference and immediately disables all four outputs within microseconds. This hardware-level response prevents uncontrolled floating of I/O logic and avoids potential latch-up or erratic behavior in downstream MCU interfaces - a safety-critical feature absent in basic high-side switches.