STMicroelectronics L6234PD Three Phase Brushless DC Motor Driver, 7-42V, 52V 5A

The STMicroelectronics L6234PD is an advanced, triple half-bridge motor driver integrated circuit, engineered to deliver precise and powerful control for three-phase brushless DC motors. Constructed using innovative BCD-multi-power technology, it intelligently combines isolated DMOS power transistors with CMOS and bi-polar circuitry on a single chip. This sophisticated integration allows for optimised logic and power stage performance, resulting in superior efficiency and robust operation in demanding applications.

The driver’s output DMOS transistors are capable of sustaining very high currents, as the DMOS structure is inherently resilient against second breakdown effects. The maximum RMS current is primarily constrained by the device’s thermal dissipation capabilities, ensuring reliable performance under load. Key built-in protection features include cross-conduction prevention, TTL-compatible logic inputs, and a thermal shutdown mechanism, all of which contribute to enhanced system safety and longevity.

Core Features & Design

• Integrated Protection: Comprehensive safeguards including thermal shutdown and cross-conduction protection prevent damage from overloads and electrical faults.
• Fast Free-Wheeling Diodes: Intrinsic diodes facilitate rapid current decay, improving efficiency and motor control during switching.
• Flexible Control: Independent input and enable functions for each half-bridge allow for versatile and precise motor control configurations.
• Robust Output Stage: Capable of driving loads up to 52V and delivering a continuous output current of 5A.

Technical Specifications

• IC Type: Half-Bridge Motor Driver
• Motor Compatibility: Three-Phase Brushless DC
• Number of Outputs: 3 Outputs
• Output Current: 5A
• Output Voltage: 52V
• Supply Voltage Range: 7V to 42V
• Operating<