STMicroelectronics VND10B-E

Overview

VND10B-E from STMicroelectronics is a dual-channel high-side smart power solid-state relay built with VIPower technology, designed for automotive-grade resistive and inductive load control with one side grounded. It delivers 14 A continuous output per channel at T_c = 85 °C, features 5 V logic-compatible inputs, thermal shutdown, under-voltage protection, open-drain diagnostic output, and fast inductive demagnetization (–18 V). It is used in body control modules for headlight, fog light, and HVAC blower switching.

For engineers reviewing the VND10B-E datasheet, VND10B-E pinout, VND10B-E application, or VND10B-E equivalent, key selection criteria include nominal current (3.4 A ISO-defined), on-resistance (0.1 Ω max), diagnostic delay timing (tpol up to 2500 µs), thermal shutdown threshold (140–180 °C), and PENTAWATT vertical package compatibility with automotive PCB layouts.

Technical Context

The VND10B-E integrates two independent high-side power switches sharing a single open-drain status output that encodes fault conditions-open load (on/off state), overtemperature, and stuck-on-to V_CC. Each channel includes dedicated thermal sensing within its MOSFET die area, enabling independent thermal cycling behavior.

It implements fast inductive demagnetization via internal clamping at –18 V, reducing power dissipation during turn-off by controlling energy recovery. Protection functions are autonomous: undervoltage lockout triggers at 3.5–6 V, and thermal shutdown resets automatically at 125 °C after hysteresis of 50 °C.

Key Specifications

Pinout & Package

PENTAWATT (vertical) package: 15-pin, through-hole, thermally enhanced plastic housing with exposed metal tab for direct heatsink mounting. Junction-to-case thermal resistance is 1.65 °C/W max, supporting high-power operation in constrained automotive environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STSPIN250 and BTS716G, the VND10B-E uniquely combines dual-channel high-current drive (14 A), shared open-drain diagnostic with fault-discriminating timing, and integrated –18 V demagnetization-making it optimal for automotive relay replacement where space, reliability, and diagnostic granularity are prioritized over digital control or current sensing.

Availability

VND10B-E is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, truck lighting systems, and off-highway equipment power distribution requiring stable component supply and long-term lifecycle support.

Supply support for VND10B-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 capability and AEC-Q100 qualification expertise.

The VND10B-E belongs to ST's VIPower M0-3 high-side switch product line, engineered specifically for robust, intelligent replacement of electromechanical relays in 12 V/24 V automotive and industrial systems.

FAQ

What is the maximum continuous output current per channel, and under what thermal condition is it specified?

The VND10B-E delivers 14 A continuous output current per channel at case temperature (T_c) = 85 °C, with V_CC = 13 V and V_DS(on) ≤ 0.5 V. This rating assumes proper heatsinking via the exposed metal tab in the PENTAWATT vertical package, with junction-to-case thermal resistance of 1.65 °C/W max. Derating applies above 85 °C case temperature.

How does the shared STAT pin differentiate between open-load and overtemperature faults?

The STAT pin uses timing-based encoding: an open-load fault (either on- or off-state) pulls STAT low with a delay (tpol) of 50–2500 µs, while overtemperature causes a faster response (tpovl) of 5–10 µs. This allows host microcontrollers to identify fault type using a single GPIO input and timer capture-no additional analog circuitry or pins required.

Can the VND10B-E safely drive inductive loads without external flyback components?

Yes-the device integrates a –18 V demagnetization clamp that actively limits inductive kickback voltage during turn-off. This eliminates the need for external flyback diodes in most solenoid, relay, and valve applications, reducing board space and BOM count while ensuring controlled energy dissipation per the formula P_dem = 0.5·L·I²·[(V_CC+V_demag)/V_demag]·f.

What protection features activate if the GND pin becomes disconnected during operation?

If the GND pin is disconnected while V_CC ≤ 16 V, both output channels immediately disable-this is a hardwired fail-safe behavior independent of logic inputs or thermal state. The device remains non-conductive until GND is restored, preventing uncontrolled load activation or latch-up in wiring fault scenarios common in automotive harnesses.