STMicroelectronics VND10BSP-E

Overview

VND10BSP-E from STMicroelectronics is a dual-channel ISO-compliant high-side smart power solid-state relay designed for automotive and industrial load switching with one side grounded. It delivers 3.4 A nominal output current per channel at V_CC = 13 V, features 0.1 Ω on-state resistance, 40 V drain-source breakdown voltage, and integrated open-load/over-temperature diagnostics via an open-drain status pin. It drives inductive or resistive loads in body control modules and lighting systems.

For engineers reviewing the VND10BSP-E datasheet, VND10BSP-E pinout, VND10BSP-E application, or VND10BSP-E equivalent, key selection criteria include thermal shutdown threshold (140–180 °C), under-voltage lockout (3.5–6 V), diagnostic delay timing (5–2500 µs), and PowerSO-10 package compatibility with FR-4 thermal pad requirements.

Technical Context

The VND10BSP-E integrates two independent high-side N-channel power MOSFETs with embedded protection logic and a shared diagnostic output. Its vertical intelligent power technology enables fast demagnetization of inductive loads (V_demag ≈ −18 V) and precise fault discrimination via differential status pulse widths (t_povl = 5–10 µs for overtemperature; t_pol = 50–2500 µs for open-load).

It operates across −40 to +150 °C junction temperature, supports 5 V logic-level inputs with 0.2–1.5 V hysteresis, and includes reverse-battery protection interface guidance using external Schottky diodes or signal-ground re-referencing-critical for 12 V automotive battery environments.

Key Specifications

Pinout & Package

Delivered in PowerSO-10 package: thermally enhanced surface-mount outline with exposed die-pad (pin 10) for direct PCB copper thermal plane connection. Mounting requires minimum recommended FR-4 pad size to achieve R_thj-amb ≤ 60 °C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side smart power switch applications.

Compared with IPS1025H and VND5E025AK, the VND10BSP-E uniquely provides dual-channel integration with a single diagnostic pin and fixed, hardware-resolved fault timing-ideal for cost-sensitive, space-constrained automotive modules where deterministic analog fault response is prioritized over configurability.

Availability

VND10BSP-E is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, engine bay solenoid drivers, and LED lighting systems requiring stable component supply and long-term lifecycle support.

Supply support for VND10BSP-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 capabilities.

The VND10BSP-E belongs to ST's "VIPower" high-side smart power switch product line, engineered specifically for ISO 16750-compliant automotive load driving with integrated diagnostics and thermal resilience.

FAQ

What is the maximum continuous output current per channel at 85 °C case temperature?

The VND10BSP-E delivers 14 A continuous output current per channel at T_c = 85 °C, verified per absolute maximum ratings table. This assumes proper thermal management using the exposed pad (Pin 10) soldered to ≥250 mm² of 2 oz copper on FR-4, achieving R_thj-case ≤ 1.65 °C/W. Derating applies above 85 °C case temperature per thermal data sheet curves.

How does the diagnostic pin distinguish between open-load and overtemperature faults?

The STAT pin uses pulse-width encoding: a short low pulse (5–10 µs) indicates thermal shutdown, while a longer low pulse (50–2500 µs) signals open-load condition. This timing difference is generated internally and does not require external timing components-enabling immediate fault classification by the host microcontroller using standard GPIO capture.

Can the VND10BSP-E drive inductive loads without external flyback diodes?

Yes-the device integrates active demagnetization that clamps inductive kickback to approximately −18 V at the OUT pin, eliminating the need for external flyback diodes in most 12 V automotive solenoid and relay applications. This reduces board space and improves reliability, though external TVS may still be advised for extreme transients beyond ISO 7637-2 Pulse 5a.

Is reverse-battery protection built-in, or does it require external components?

Reverse-battery protection is not built-in and requires external implementation. The recommended solution is a Schottky diode between Pin 1 (GND) and chassis ground, or re-referencing the control unit's signal ground to Pin 1. Both methods are detailed in Figures 2 and 3 of the datasheet, with trade-offs in input threshold shift versus component count.