STMicroelectronics VN751PT13TR

Overview

VN751PT13TR from STMicroelectronics is a high-side power switch IC designed for industrial load control with ground-referenced loads. It delivers up to 2.5 A DC output current, features 60 mΩ R_DS(on), operates across 8–36 V supply range, and integrates thermal shutdown, short-circuit protection, undervoltage/overvoltage lockout, and fast demagnetization for inductive loads - deployed in IEC 61131-2-compliant programmable controllers.

For engineers reviewing the VN751PT13TR datasheet, VN751PT13TR pinout, VN751PT13TR application, or VN751PT13TR equivalent, key selection criteria include its active V_DS clamp capability, CMOS-compatible input logic, open-drain status output, and PPAK package thermal performance in high-reliability industrial switching.

Technical Context

The VN751PT13TR implements a monolithic VIPower M03 high-voltage technology architecture with integrated active clamp circuitry that pulls the OUT pin to V_demag (≈ V_CC − 55 V) during inductive turn-off, enabling controlled energy dissipation. Its input stage accepts 1.25 V low / 3.25 V high logic thresholds with 0.5 V hysteresis, ensuring noise immunity in electrically harsh environments.

Protection is multi-layered: current limiting triggers at 2.7–6.0 A (depending on load and timing), thermal shutdown activates at 150–200 °C with 7–20 °C hysteresis, and loss-of-ground detection forces automatic shutdown. The open-drain STATUS pin reports fault conditions including overtemperature, undervoltage, overvoltage, and current limit events.

Key Specifications

Pinout & Package

The VN751PT13TR is housed in a thermally enhanced PPAK (Power Package) surface-mount package with exposed drain pad for efficient heat transfer. The package measures 6.0 × 6.4 mm with 0.8 mm height and features 5 terminals: V_CC, OUT, GND, IN, and STATUS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VN751PT13TR, the STVN751SPTR offers higher current capacity at the expense of tighter thermal constraints, while the NCV8460ASTT3G reduces functionality and diagnostic depth to meet lower BOM cost targets - making VN751PT13TR optimal for applications demanding integrated protection and real-time status feedback.

Availability

VN751PT13TR is available at Aetrix Electronics and suitable for industrial programmable controllers, factory automation I/O modules, and automated test equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for VN751PT13TR 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 broad IP portfolio.

The VN751PT13TR belongs to ST's VIPower high-side driver product line, engineered specifically for ruggedized industrial control applications requiring integrated protection, diagnostic feedback, and high thermal efficiency in compact surface-mount packages.

FAQ

What is the maximum inductive load energy the VN751PT13TR can safely demagnetize?

The VN751PT13TR supports up to 5.5 J of single-pulse avalanche energy at V_CC = 24 V and T_AMB = 125 °C, as measured per IEC 61000-4-5 test conditions. This value is validated in the datasheet's Table 2 and Figure 12. Exceeding this energy requires an external Schottky diode, which disables the internal active clamp function.

Does the VN751PT13TR require an external pull-up resistor on the STATUS pin?

Yes - the STATUS pin is open-drain and requires an external pull-up resistor (typically 4.7–10 kΩ to V_CC) to generate a valid logic-high signal during normal operation. The datasheet specifies V_STAT ≤ 0.5 V when pulled low during faults and leakage current ≤10 µA when high, confirming external biasing necessity.

Can the VN751PT13TR drive loads with floating ground references?

No - the VN751PT13TR is explicitly designed for high-side switching of loads referenced to system ground. Its loss-of-ground protection circuitry disables the output if GND is disconnected, and the device requires a solid, low-impedance ground connection for proper operation and fault detection.

What is the recommended PCB layout practice for thermal management of the VN751PT13TR?

ST recommends connecting the exposed drain pad (pin 1) to ≥0.5 cm² of 35 µm-thick copper on a single-sided FR-4 board, with thermal vias to inner or backside ground planes if multilayer. The datasheet specifies R_th(JA) = 50 °C/W under these conditions, and R_th(JC) = 3 °C/W confirms direct pad-to-heatsink conduction is critical for >1.5 W continuous dissipation.