STMicroelectronics VN750B5TR-E

Overview

VN750B5TR-E from STMicroelectronics is an automotive-grade high-side power switch IC in P2PAK package, designed for driving grounded loads in 12 V/24 V systems. It features 60 mΩ R_DS(on), 6 A continuous output current, on/off-state open-load detection, short-circuit protection, and reverse battery protection. Used in body control modules for headlight, fog light, and HVAC blower control.

For engineers reviewing the VN750B5TR-E datasheet, VN750B5TR-E pinout, VN750B5TR-E application, or VN750B5TR-E equivalent, this page delivers verified electrical specs, thermal behavior under load, ISO 7637-2 transient compliance, diagnostic status signaling, and automotive-grade reliability context - all critical for functional safety–aware power distribution design.

Technical Context

The device integrates a VIPower® M0-3 vertical power MOSFET with embedded logic, current limiting, thermal shutdown (150 °C trip, 135 °C reset), and bidirectional open-load detection. Its CMOS-compatible input accepts 3.25 V high / 1.25 V low logic thresholds with 0.5 V hysteresis, enabling direct MCU interfacing without level-shifting.

Protection architecture includes active V_CC clamping for ISO 7637-2 Pulse 1/2/3a/3b/4 compliance, undervoltage lockout (4 V ±0.5 V), overvoltage shutdown (36 V), and loss-of-ground detection. The status pin provides real-time fault reporting via open-drain output with clamp voltage (−0.7 to 8 V) and leakage <10 µA.

Key Specifications

Pinout & Package

P2PAK package (7.9 mm × 5.1 mm × 2.3 mm) with exposed drain pad for thermal dissipation; thermally enhanced layout requires ≥6 cm² of 35 µm Cu on single-sided FR-4 for R_thj-amb = 44 °C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VN750PTTR-E, the VN750B5TR-E offers identical electrical behavior but trades P2PAK's mechanical robustness and higher creepage for slightly higher thermal resistance; versus TPS2HB50Q1, it delivers richer diagnostics at the cost of less granular current measurement - making it preferable for ASIL-B–compliant load monitoring where binary fault reporting suffices.

Availability

VN750B5TR-E is available at Aetrix Electronics and suitable for automotive body electronics, industrial control panels, and commercial vehicle lighting systems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for VN750B5TR-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, specializing in automotive, industrial, and power management ICs with broad AEC-Q100–qualified portfolios.

The VN750-E series belongs to ST's VIPower® high-side driver family, engineered specifically for automotive power distribution networks where diagnostic integrity, transient immunity, and thermal resilience are mandatory.

FAQ

What is the maximum continuous output current rating for VN750B5TR-E?

The VN750B5TR-E is rated for 6 A continuous output current under specified thermal conditions: mounted on a standard FR-4 PCB with ≥6 cm² of 35 µm copper, ambient temperature ≤40 °C, and no forced airflow. Derating applies above 25 °C case temperature per the R_thj-amb = 44 °C/W curve in the datasheet.

Does VN750B5TR-E support PWM dimming of LED loads?

Yes - the device supports PWM switching up to 20 kHz with typical turn-on/turn-off delays of 40 µs and 30 µs respectively. However, due to its internal current-limiting architecture and thermal shutdown behavior, sustained PWM at >50% duty cycle into high-inductance loads may trigger protection; thermal design and load characterization are required for reliable operation.

How does the STATUS pin indicate an open-load fault in off-state?

In off-state, the STATUS pin goes low (≤0.5 V) when the output voltage exceeds 1.5–3.5 V - indicating an open circuit between OUT and ground. This occurs because the internal pull-down detects absence of current path; the condition must persist for ≥1000 µs before assertion, preventing false triggers from capacitive coupling or noise.

Is VN750B5TR-E compatible with 24 V commercial vehicle systems?

Yes - its 5.5–36 V V_CC operating range fully covers 24 V nominal systems including cold-crank (down to ~14 V) and load-dump transients (up to 36 V). The device's ISO 7637-2 Pulse 5 Class E rating means external TVS protection is recommended for full load-dump immunity beyond 36 V, per OEM specifications.