STMicroelectronics VNQ6004SATR-E

Overview

VNQ6004SATR-E from STMicroelectronics is a quad-channel high-side driver IC built on VIPower® technology, designed for direct control of resistive or inductive grounded loads in automotive body electronics. It features 16-bit ST-SPI interface, channel-specific R_ON (30 mΩ for Ch0–1, 10 mΩ for Ch2–3), programmable BULB/LED mode for channels 0–1, and integrated PWM/phase-shift generation with 160 Hz fallback frequency.

For engineers reviewing the VNQ6004SATR-E datasheet, VNQ6004SATR-E pinout, VNQ6004SATR-E application, or VNQ6004SATR-E equivalent, key selection criteria include SPI-configurable diagnostics (open-load ON/OFF, short-to-VCC, overtemperature), limp-home fail-safe operation during VDD loss, and dual-level current limiting (25 A for Ch0–1, 55 A for Ch2–3) with thermal shutdown latching or auto-restart.

Technical Context

The device implements a digital SPI-controlled high-side power stage with four independent VIPower output channels, each with dedicated protection logic including load-current limitation, self-limiting fast thermal transients, and overvoltage clamping. Its diagnostic architecture supports synchronous multiplexed current sensing via CURRENT-SENSE and CS_SYNC pins, enabling real-time analog feedback per channel during active drive.

Operating modes include Normal, Standby, Sleep (two levels), Fail-Safe (limp-home), and Battery Undervoltage shutdown. Limp-home mode activates on VDD loss or CSN timeout, allowing IN0–IN3 pins to directly control outputs without SPI-critical for safety-critical automotive lighting and actuation systems requiring deterministic behavior under fault conditions.

Key Specifications

Pinout & Package

Package: PowerSSO-36 (exposed die pad, thermally enhanced SO package with 36 leads).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS4H160-Q1 and IPS160HF, the VNQ6004SATR-E uniquely integrates quad-channel control, SPI-configurable diagnostics, hardware limp-home, and dual-mode (BULB/LED) optimization-making it the only single-package solution meeting ASIL-B functional safety requirements for automotive lighting and actuation without external supervision.

Availability

VNQ6004SATR-E is available at Aetrix Electronics and suitable for automotive lighting control, commercial vehicle interior systems, off-highway equipment actuation, and HVAC blower management requiring stable component supply across extended temperature ranges (−40 °C to +150 °C).

Supply support for VNQ6004SATR-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 specializing in automotive, industrial, and power management solutions, with deep expertise in intelligent power technologies.

The VNQ6004SATR-E belongs to ST's VIPower® M0-7 family of high-side drivers, engineered specifically for ASIL-B-compliant automotive body electronics where robustness, diagnostic coverage, and fail-safe operation are mandatory.

FAQ

What is the purpose of the CS_SYNC pin?

The CS_SYNC pin delivers a synchronous active-high pulse aligned precisely with the ON-time of each output channel. This signal enables external ADCs or microcontrollers to sample the CURRENT-SENSE pin only during valid conduction periods, eliminating errors from OFF-state leakage current or capacitive coupling-critical for accurate real-time load current monitoring in safety-critical applications.

How does limp-home mode operate during VDD loss?

When VDD drops below threshold or digital memory resets, the VNQ6004SATR-E automatically enters limp-home mode: outputs OUT0–OUT3 become directly controlled by logic levels applied to IN0–IN3 pins, bypassing SPI and internal state machines. This hardware-fallback ensures deterministic output behavior without firmware involvement-meeting ISO 26262 requirements for fail-operational systems like emergency lighting or brake actuators.

Can channels 0–1 and 2–3 be used simultaneously in different modes?

Yes. Channels 0–1 can be configured in BULB mode (optimized for incandescent inrush handling) while channels 2–3 operate in LED mode (for constant-current LED regulation), all under unified SPI control. Mode selection is register-based (GLOBCTR and CCR registers), allowing mixed-load applications such as headlamp (BULB) + DRL (LED) on a single IC without performance trade-offs.

What protection features activate during load dump events?

During ISO 7637-2 Pulse 5a load dump (75 V, 100 ms), the VNQ6004SATR-E activates its integrated overvoltage clamp, limiting VCC pin voltage to safe levels. Simultaneously, undervoltage shutdown remains inactive (as VCC is high), and power limitation logic prevents thermal runaway. No external TVS diode is required-validated per ST's application note AN4729 for PowerSSO-36 packages.