A4939KLPTR-5-T
Overview
The A4939KLPTR-5-T is a three-phase MOSFET pre-driver designed for high-performance Brushless DC (BLDC) motor control applications. Operating from a supply voltage of 5.5V to 50V, it provides the necessary gate drive for external N-channel power MOSFETs while offering an integrated 5V regulated logic supply. The controller features robust protection mechanisms including cross-conduction prevention and motor phase short-circuit detection.
Why Choose This Part
This pre-driver simplifies system design by integrating a 5V regulator and extensive diagnostic features like short-to-ground and short-to-supply detection. Its AEC-Q100 qualification and wide operating temperature range of -40C to 150C make it ideal for mission-critical automotive and industrial subsystems.
Applications
Key Specifications
Getting Started
Designers should begin by selecting external N-channel MOSFETs based on the required motor current and thermal constraints. The device is configured via a parallel interface for commutation and direction control, so ensure the host microcontroller's logic levels are compatible with the 5V regulated output. Reference the 28-TSSOP-EP thermal pad layout guidelines to ensure adequate heat dissipation from the pre-driver during high-frequency switching.
