VNH7070AYTR

Overview

The VNH7070AYTR is an automotive fully integrated H-bridge motor driver manufactured by STMicroelectronics. It utilizes VIPower M0 technology to integrate power MOSFETs with intelligent protection circuitry on a single die. The device features dual monolithic high-side drivers and two low-side switches, housed in a PowerSSO-36 package with exposed islands for thermal optimization. It supports PWM operation up to 20 KHz for speed control and includes Multisense diagnostic functions for current monitoring. Qualified under AEC-Q100, it operates within a temperature range of -40°C to +150°C TJ.

Feature Summary

• Fully integrated H-bridge architecture combining control and power stages using proprietary VIPower M0 technology.
• Multisense diagnostic capability providing analog motor current feedback proportional to load current.
• Comprehensive protection suite including overvoltage clamp, thermal shutdown, cross-conduction protection, and loss of ground/VCC detection.
• Direct microcontroller interface compatibility via 3V CMOS-compatible inputs for direction and brake control.

Applications

• Automotive window lift actuators
• Seat adjustment motors
• HVAC fan control systems
• Wiper pump drives

Procurement Notes

Verify the specific suffix 'AYTR' corresponds to the PowerSSO-36 package variant when sourcing. Confirm AEC-Q100 qualification status is required for the target automotive application. Ensure thermal management design accounts for the exposed pad configuration to maintain junction temperatures within specified limits during continuous operation.

Selection Notes

Select this component for applications requiring a robust, single-chip solution for brushed DC motor control in harsh automotive environments. The PowerSSO-36 package is suitable where thermal dissipation is critical. Consider the Multisense feature if precise current monitoring and fault diagnosis are necessary for system safety and efficiency.

Part Context

This part belongs to the VIPOWER™ family of smart power devices designed for automotive markets. It integrates high-voltage power MOSFETs with signal processing and protection logic. The VNH7070 series specifically targets full-bridge motor driving needs, offering a compact alternative to discrete solutions while ensuring reliability under voltage transients and thermal stress typical in vehicle electrical systems.

Replacement Considerations

Publicly confirmed substitute part numbers were not identified in the provided source material. Verify pinout and thermal characteristics against any potential alternatives before implementation.

FAQ

How is the motor current monitored?

The Multisense pin delivers an analog current proportional to the motor current value, allowing the microcontroller to monitor load conditions and receive diagnostic feedback.

What is the maximum PWM frequency supported?

The device supports PWM operation up to 20 KHz, enabling effective speed control across various operating conditions.

How does the device handle thermal overload?

It incorporates thermal shutdown protection that activates to protect the device from damage due to excessive junction temperatures.