STMicroelectronics VN750PT-E

Overview

VN750PT-E from STMicroelectronics is a monolithic high-side power switch fabricated in VIPower® M0-3 technology, designed for driving grounded loads in automotive and industrial applications. It delivers 6 A continuous output current, features 60 mΩ typical R_DS(on), operates from 5.5 V to 36 V supply, and integrates on-state/off-state open-load detection, short-circuit protection, and thermal shutdown with automatic restart.

For engineers reviewing the VN750PT-E datasheet, VN750PT-E pinout, VN750PT-E application, or VN750PT-E equivalent, this device is selected for robust load control in 12 V/24 V automotive subsystems requiring diagnostic feedback, reverse-battery immunity, and ISO 7637-2 transient resilience - especially where PPAK packaging enables high-power density PCB layouts.

Technical Context

The VN750PT-E implements a CMOS-compatible input interface with 0.5 V hysteresis and active status pin reporting (open-load, overtemperature, undervoltage, overvoltage). Its internal current limiter activates at 6–15 A depending on V_CC, and thermal shutdown triggers at 150–200 °C with 7–15 °C hysteresis for stable recovery.

Protection architecture includes active V_CC clamping for low-energy transients (ISO 7637-2 pulses 1–4), reverse-battery protection via integrated GND network, and output clamp during demagnetization (V_demag = V_CC − 41 to V_CC − 55 V) to suppress inductive kickback without external snubbers.

Key Specifications

Pinout & Package

The VN750PT-E is housed in a thermally enhanced PPAK (Power Plastic Package) surface-mount package with exposed drain pad for efficient heat dissipation. This package supports high-current routing and achieves 37 °C/W junction-to-ambient thermal resistance on 6 cm² copper area.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VN750B5TR-E, the VN750PT-E offers superior thermal performance in surface-mount layouts; compared with TPS27081AQPWPRQ1, it delivers complete built-in diagnostics and higher current capability - making it optimal for new automotive designs demanding ASIL-ready fault reporting and compact power delivery.

Availability

VN750PT-E is available at Aetrix Electronics and suitable for automotive body electronics, engine control units, ADAS subsystems, and commercial vehicle lighting requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for VN750PT-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 and AEC-Q100 validation infrastructure.

The VN750PT-E belongs to ST's VIPower® high-side driver family, engineered specifically for automotive load control applications requiring integrated protection, diagnostics, and robustness against battery transients and environmental stress.

FAQ

What is the maximum inductive load energy the VN750PT-E can safely demagnetize?

The VN750PT-E supports up to 138 mJ maximum switching energy under specified test conditions (L = 2.46 mH, V_bat = 13.5 V, I_L = 9 A, T_j,start = 150 °C). Its integrated V_demag clamp (V_CC − 41 V to V_CC − 55 V) actively suppresses inductive kickback, eliminating need for external TVS diodes in most automotive solenoid and relay applications.

How does the STAT pin indicate an open-load condition in off-state?

In off-state, the STAT pin goes low when the output voltage exceeds 1.5–3.5 V (V_OL threshold), confirming an open circuit between OUT and GND. This detection occurs with VIN = 0 V and requires no external pull-up; the internal comparator monitors V_OUT directly and asserts STAT within 1000 µs of turn-off.

Can the VN750PT-E be used in 48 V mild-hybrid systems?

No - the absolute maximum V_CC rating is 41 V DC, and overvoltage shutdown triggers at 36 V. While it tolerates brief 48 V transients per ISO 7637-2 Pulse 5 (up to +86.5 V for 400 ms), sustained operation above 36 V will activate shutdown and block output. For 48 V systems, ST recommends the VN7710AS or similar 60 V-rated high-side drivers.

Is external current sensing required for overload detection?

No - the VN750PT-E incorporates active current limitation (6–15 A depending on V_CC) and thermal shutdown with automatic restart. Overload events are reported via the STAT pin as "overtemperature" when junction temperature exceeds 150–200 °C, and the device cycles on/off until fault clears - no external sense resistor or amplifier is needed for basic protection.