STMicroelectronics VND5050J-E

Overview

VND5050J-E from STMicroelectronics is a double-channel high-side driver IC for automotive power distribution, designed to control resistive, inductive, and capacitive loads connected to ground. It features 50 mΩ typical on-state resistance per channel, 18 A current limitation (typ), 4.5–36 V operating supply range, and integrated open-load detection in both on/off states - deployed in body control modules for headlight and fog lamp switching.

For engineers reviewing the VND5050J-E datasheet, VND5050J-E pinout, VND5050J-E application, or VND5050J-E equivalent, key selection criteria include thermal shutdown behavior with automatic restart, reverse battery protection implementation, STAT_DIS-controlled status pin disable functionality, and ISO7637 transient compliance for 12 V automotive systems.

Technical Context

The device integrates two independent VIPower M0-5 high-side switches with active power limitation during inrush, enabling robust drive of inductive loads without external snubbers. Each channel includes dedicated diagnostic paths for open-load detection (on/off), output stuck-to-VCC detection, and thermal shutdown indication via an open-drain STATUS pin.

Control logic uses CMOS-compatible 3.0 V inputs with 0.25 V hysteresis; STAT_DIS enables high-impedance mode on STATUS pins. Protection architecture combines undervoltage shutdown (4.5 V threshold), VCC clamp (41 V), load current limiting, and self-limiting thermal transients - all coordinated within a single monolithic PowerSSO-12 package.

Key Specifications

Pinout & Package

Package: PowerSSO-12 - thermally enhanced exposed-tab surface-mount package with integrated VCC connection to tab; optimized for PCB copper area heat spreading in automotive under-hood environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS4H160-Q1 and BTS7004-1EPP, the VND5050J-E delivers higher current capability per channel (18 A vs ≤4 A), integrated VCC clamp for load dump immunity, and dual-state open-load detection - making it optimal for safety-critical, high-power automotive lighting and heating functions where hardware-level fault autonomy is mandatory.

Availability

VND5050J-E is available at Aetrix Electronics and suitable for automotive body control modules, lighting systems, and HVAC actuators requiring stable component supply across extended vehicle lifecycles and production ramp phases.

Supply support for VND5050J-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 VIPower technology for intelligent power switching.

The VND5050J-E belongs to ST's VIPower M0-5 high-side driver family, engineered specifically for AEC-Q100 Grade 0/1 automotive applications demanding high reliability, integrated diagnostics, and robust EMC performance in harsh environments.

FAQ

What is the maximum allowable PCB copper area for thermal management of the PowerSSO-12 package?

The PowerSSO-12 package achieves optimal thermal performance with ≥2000 mm² of 2-oz copper on the top layer connected to the exposed VCC tab. According to Figure 32 in the datasheet, this reduces R_thj-amb to 25°C/W (one channel on, free-air), enabling 4.5 A continuous current at 105°C ambient without forced air.

How does the VND5050J-E handle reverse battery conditions?

The device requires external reverse-battery protection on the GND line - either a series resistor (RGND) or Schottky diode (DGND) - as specified in Section 3.1. The internal circuitry is not rated for reverse V_CC; applying -12 V to GND without protection causes irreversible damage per Absolute Maximum Ratings (Table 4).

Can the STATUS pins be used without external pull-up resistors?

No - STATUS1 and STATUS2 are open-drain outputs and require external pull-up resistors (typically 4.7 kΩ to VCC) to generate valid logic-high signals. Without pull-ups, the STATUS lines remain floating during normal operation and cannot assert diagnostic states reliably, as confirmed in Figure 4 timing diagrams and Table 12 truth table.

What is the minimum pulse width detectable for open-load conditions?

The VND5050J-E detects open-load in the on-state with a minimum delay of 200 µs (t_DOL(on)) after load removal, and in the off-state with a 2–4 V threshold window (V_OL). These values are guaranteed across -40°C to 150°C junction temperature and do not depend on input pulse width - only on sustained output voltage/current deviation.