STMicroelectronics VN920D-B513TR

Overview

VN920D-B513TR from STMicroelectronics is a monolithic high-side driver IC in VIPower M0-3 technology, designed for driving grounded loads in automotive and industrial power distribution systems. It delivers 30 A continuous output current, features 18 mΩ R_DS(on), operates up to 36 V supply, and integrates on/off-state open-load detection, short-circuit protection, and reverse-battery immunity. It is used in body control modules for controlling solenoids, lamps, and actuators.

For engineers reviewing the VN920D-B513TR datasheet, VN920D-B513TR pinout, VN920D-B513TR application, or VN920D-B513TR equivalent, key selection criteria include its P2PAK package thermal performance, ISO7637-2 transient immunity, integrated status reporting, and diagnostic capability under ground-loss conditions.

Technical Context

The VN920D-B513TR implements a protected high-side switch with CMOS-compatible input logic, active VCC clamp for low-energy spike suppression (ISO7637-2 compliant), and dual-mode open-load detection-measuring output voltage during off-state and output current during on-state. Its internal current limiter (30–75 A) works in tandem with thermal shutdown (150–200 °C trip) and automatic restart.

Protection architecture includes under-voltage lockout (4 V typical), over-voltage shutdown (36 V), loss-of-ground detection via internal sensing, and reverse-battery tolerance via external GND network design. The STATUS pin provides real-time fault reporting (open load, overload, overtemperature, UV/OV) with programmable delay timing.

Key Specifications

Pinout & Package

The VN920D-B513TR uses the P2PAK surface-mount package (10.5 mm × 14.5 mm × 4.5 mm), optimized for high-current handling and thermal dissipation in automotive PCBs. It features exposed drain pad for direct thermal connection to copper pour.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STVN920B5TR, VN920D-B513TR offers assured supply continuity and updated qualification; versus BTS724G, it delivers superior diagnostic fidelity, 30% higher current rating, and integrated off-state open-load detection essential for predictive maintenance.

Availability

VN920D-B513TR is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, truck lighting systems, and off-highway equipment power distribution requiring stable component supply across extended product lifecycles.

Supply support for VN920D-B513TR 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 vertical manufacturing and AEC-Q100 qualification expertise.

The VN920D series belongs to ST's VIPower high-side driver product line, engineered specifically for robust, diagnostic-rich power switching in 12 V/24 V automotive and heavy-duty vehicle applications.

FAQ

What is the maximum safe operating temperature for VN920D-B513TR?

The junction temperature is internally limited by thermal shutdown at 150 °C (typical trip point), with reset occurring at 135 °C. Sustained operation above 150 °C is prevented by automatic turn-off. For reliable long-term use, PCB thermal design should maintain T_j ≤ 125 °C under worst-case ambient and load conditions, using the P2PAK R_thj-amb = 51.3 °C/W (FR4, 0.5 cm² Cu) as a baseline.

Does VN920D-B513TR require an external pull-up on the STATUS pin?

Yes - the STATUS pin is open-drain and requires an external pull-up resistor (typically 4.7 kΩ to V_CC) to generate valid logic-high signals during normal operation and fault reporting. Without it, the pin remains floating and cannot indicate "no fault" state reliably. Pull-up value must balance rise time (<1 µs) against current consumption in diagnostic polling.

Can VN920D-B513TR drive inductive loads like fuel injectors?

Yes - it is qualified for inductive switching with up to 364 mJ demagnetization energy (P2PAK, V_BAT = 13.5 V). Its integrated V_demag clamp (V_CC − 41 V to V_CC − 55 V) safely absorbs flyback voltage. For injectors > 10 mH, verify turn-off dV/dt compliance and add external snubber if peak clamp voltage exceeds system limits.

How does VN920D-B513TR detect loss of ground?

It monitors internal voltage references relative to the GND pin. If GND disconnects, internal bias networks collapse, triggering immediate shutdown within microseconds and pulling STATUS low. This behavior is independent of INPUT signal and occurs before output can float - preventing unintended load activation in safety-critical systems.