STMicroelectronics VND05BSPTR-E

Overview

VND05BSPTR-E from STMicroelectronics is a dual-channel ISO-compliant high-side smart power solid-state relay built with VIPower technology, designed for automotive and industrial load switching with one side grounded. It delivers 1.6 A nominal output current per channel at V_CC = 13 V, features 0.2 Ω on-state resistance, 40 V drain-source breakdown voltage, and integrated open-load/over-temperature diagnostics. It drives inductive or resistive loads in body control modules and lighting systems.

For engineers reviewing the VND05BSPTR-E datasheet, VND05BSPTR-E pinout, VND05BSPTR-E application, or VND05BSPTR-E equivalent, key selection criteria include thermal shutdown threshold (140–180 °C), diagnostic delay differentiation (tpovl = 5–10 µs vs. tpol = 50–2500 µs), 5 V logic compatibility, and fast demagnetization capability (V_demag ≈ −18 V) for inductive load handling.

Technical Context

The VND05BSPTR-E integrates two independent high-side power switches with shared diagnostic output, each featuring a protected Power MOSFET with internal current sensing and thermal monitoring. Its logic input accepts 3.5 V high-level and 1.5 V low-level signals, with 0.2–1.5 V hysteresis to reject noise in harsh automotive environments.

Protection functions operate autonomously: under-voltage lockout triggers at 3.5–6 V, thermal shutdown activates at ≥140 °C with 50 °C hysteresis, and open-load detection distinguishes fault type via status pulse width-short delay (≤10 µs) for overtemperature, long delay (≥50 µs) for open-circuit conditions.

Key Specifications

Pinout & Package

Delivered in PowerSO-10® package - thermally enhanced surface-mount housing with exposed die-pad for low R_thj-case and mechanical robustness in automotive vibration environments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS27082LDR and IPS1021H, the VND05BSPTR-E uniquely combines dual-channel integration, −18 V active demagnetization, and ISO-standardized open-load/overtemperature pulse-width discrimination-making it optimal for cost-sensitive, diagnostics-rich 12 V automotive modules requiring minimal external components.

Availability

VND05BSPTR-E is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, electric power steering subsystems, and commercial HVAC blower control requiring stable component supply and full production traceability.

Supply support for VND05BSPTR-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, designing and manufacturing analog, MCU, power, and automotive-grade ICs for industrial, automotive, and consumer markets.

The VND05BSPTR-E belongs to ST's VIPower M0-3 family of intelligent power switches-engineered specifically for ISO 16750-compliant automotive load driving with integrated diagnostics, thermal protection, and inductive load handling.

FAQ

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

The VND05BSPTR-E supports 9 A continuous output current per channel when mounted on a heatsink maintaining T_c = 85 °C, as specified in the Absolute Maximum Ratings table. This rating assumes proper PCB copper area and thermal vias under the exposed pad to achieve R_thj-case ≤ 2.1 °C/W. At ambient temperature, derating applies per the thermal data curves in the datasheet.

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

The STATUS pin uses ISO-defined pulse-width encoding: a short low pulse (5–10 µs, t_povl) indicates overtemperature or open-load in on-state, while a long low pulse (50–2500 µs, t_tpol) identifies open-load in off-state. The microcontroller measures this duration after the input signal falls to classify the fault without additional hardware.

Can the VND05BSPTR-E drive inductive loads without external flyback components?

Yes-the device integrates an active demagnetization circuit that generates approximately −18 V across the load during turn-off, safely dissipating stored inductive energy. This eliminates the need for external freewheeling diodes or TVS devices in most 12 V automotive applications, though external clamping may still be required for very high-energy loads per system-level EMC testing.

What is the recommended PCB layout practice for thermal performance?

Mount the PowerSO-10® package with the exposed thermal pad fully soldered to a minimum 200 mm² copper area on the top layer, connected via ≥6 thermal vias (0.3 mm diameter) to an internal or bottom-layer ground plane. STMicroelectronics recommends using the footprint dimensions from the mechanical drawing (page 7), including 7.4–7.6 mm E2 width and 9.4–9.6 mm D length, to ensure mechanical reliability and thermal conduction.