VNH7070BASTR

Overview

The VNH7070BASTR is a fully integrated H-bridge motor driver from STMicroelectronics, designed for automotive applications. It utilizes VIPower M0-7 technology to integrate power MOSFETs with intelligent protection circuitry on isolated leadframes within a 16-SO package. The device supports a supply voltage range of 4V to 28V and delivers an output current of 15A. It features two half-bridge outputs controlled via PWM signals up to 20 kHz. Key specifications include AEC-Q100 qualification, operation across a junction temperature range of -40°C to 150°C, and 3V CMOS-compatible inputs.

Feature Summary

• Integrates dual monolithic high-side drivers and two low-side switches using proprietary VIPower M0-7 technology for efficient signal and protection circuitry integration.
• Provides analog motor current feedback through the MultiSense pin, delivering a current proportional to the motor current value for precise monitoring.
• Includes comprehensive diagnostic capabilities such as thermal shutdown indication, open-load detection in the OFF state, and short-to-ground or short-to-VCC protection.

Applications

• Automotive brushed DC motor control
• Prototype development using EV-VNH7070BAS evaluation boards
• Systems requiring direct microcontroller interface for direction and brake control

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number VNH7070BASTR with official STMicroelectronics documentation. Confirm that the package type matches the specified 16-SOIC form factor and that the device holds valid AEC-Q100 certification for automotive grade reliability. Ensure compatibility with the required 4V to 28V supply voltage range before integration into the final design.

Selection Notes

Select this component when a fully integrated solution for brushed DC motors is required in automotive environments. It is suitable for designs needing 15A output capability with integrated thermal and electrical protections. Consider the 16-SO package constraints and the need for external heat sinking if operating near maximum current limits. Verify that the 20 kHz PWM frequency requirement aligns with the application's speed control needs.

Part Context

This device belongs to the VIPOWER™ series, specifically leveraging VIPower M0-7 technology. It is distinct from other variants like the VNH7070AY which uses a PowerSSO-36 package and offers 20A output. The VNH7070BASTR is optimized for board-level manufacturability due to its symmetrical mechanical design and electrically isolated leadframes.

Replacement Considerations

The VNH7070ASTR is listed as a substitute part number by the manufacturer. Verify functional equivalence and package compatibility before substitution.

FAQ

How is motor current monitored?

Motor current is monitored via the MultiSense pin, which outputs a current proportional to the actual motor current value.

What is the maximum PWM frequency supported?

The device supports PWM operation up to 20 kHz for controlling motor speed.