STMicroelectronics VN450P13TR

Overview

VN450P13TR from STMicroelectronics is a three-channel high-side smart power switch (solid-state relay) designed for automotive and industrial load control with ground-referenced inductive/resistive loads. It delivers 10 A continuous per channel for channels 1–2 and 2.5 A for channel 3 at T_C = 25 °C, features 40 mΩ/300 mΩ R_DS(on), 36 V V_CC rating, and integrated thermal/overvoltage/undervoltage protection.

For engineers reviewing the VN450P13TR datasheet, VN450P13TR pinout, VN450P13TR application, or VN450P13TR equivalent, key selection criteria include channel-specific current capability, open-drain diagnostic feedback timing (t_POL = 50–950 µs), thermal shutdown threshold (150–190 °C), logic-level compatibility (VIH ≥ 3.5 V), and PowerSO-20 package thermal resistance (R_thj-case = 1.3 °C/W).

Technical Context

The VN450P13TR integrates three independent high-side drivers with dedicated diagnostics, each controlled by 5 V CMOS-compatible inputs and monitored via open-drain status outputs. Protection logic includes under-voltage lockout (V_USD = 4 V typ.), overvoltage shutdown (V_OVD = 39 V typ.), and thermal shutdown (T_TSD = 170 °C typ.) with 15 °C hysteresis.

Each channel supports fast switching (t_d(on) = 40 µs max for ch.1–2; t_d(off) = 600 µs max for ch.3) and inductive demagnetization clamping (V_DEMAG = V_CC−45 V). Diagnostics distinguish open-load (V_ENOL = 6.6 V typ.), overcurrent (I_OV = 10 A ch.1–2), and thermal fault conditions using discrete status pin behavior per channel.

Key Specifications

Pinout & Package

Package: PowerSO-20 (thermally enhanced SO-20 variant with exposed die pad for heatsinking; 15.8–16.0 mm × 13.9–14.5 mm footprint, 10.0 mm height).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STSPIN250 and BTS724G, the VN450P13TR uniquely balances triple-channel flexibility, asymmetric current ratings (10 A/10 A/2.5 A), and analog-diagnostic simplicity-making it optimal for cost-sensitive, non-safety-critical body electronics where discrete fault reporting per channel is essential.

Availability

VN450P13TR is available at Aetrix Electronics and suitable for automotive lighting control, industrial I/O modules, trailer management systems, and off-highway equipment requiring stable component supply and long-term obsolescence planning.

Supply support for VN450P13TR 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.

The VN450 belongs to ST's "VIPower" intelligent power switch product line, engineered specifically for robust high-side load driving in harsh automotive environments with integrated protection and diagnostics.

FAQ

What is the maximum continuous output current per channel at 100°C case temperature?

At T_C = 100 °C, channel 1–2 current derates to 6.5 A and channel 3 to 1.6 A, based on thermal resistance (R_thj-case = 1.3 °C/W) and maximum junction temperature (150 °C). Derating curves are provided in Figure 5 of the VN450 datasheet (Rev 3, page 7).

Can the VN450P13TR drive inductive loads without external flyback diodes?

Yes - the device includes integrated demagnetization clamping with V_DEMAG = V_CC−45 V for channel 1–2 and V_CC−55 V for channel 3, enabling safe energy dissipation during inductive turn-off without external diodes in most 12 V/24 V applications.

How does the open-load detection work, and what is its voltage threshold?

Open-load detection activates when output voltage exceeds V_ENOL = 6.6 V (typ.) while the channel is enabled. This occurs when no load is connected or wiring is broken, causing the output to float near V_CC; STATx pulls low after t_POVL = 10 µs delay to signal the fault.

Is the VN450P13TR compliant with automotive EMC standards?

Yes - the VN450P13TR meets ISO 7637-2 transient immunity requirements (Pulses 1–5) with Class C performance across all test levels, verified per manufacturer test report SC09570. No additional external protection is required for standard 12 V/24 V vehicle electrical systems.