MC33926PNBR2

Overview

The MC33926PNBR2 is a SMARTMOS monolithic H-bridge power IC designed for automotive and industrial applications. It operates within a supply voltage range of 5 V to 28 V and delivers an output current of 5 A. The device supports a PWM frequency of 20 kHz and functions across a temperature range of -40 °C to +125 °C. It features a PQFN-32 package, consumes 20 mA of operating supply current, and includes two outputs. The component is qualified under AEC-Q100 standards.

Feature Summary

• Integrated overcurrent protection with internal constant off-time PWM regulation
• Output short-circuit protection against VPWR or ground faults
• Temperature-dependent current limit threshold reduction for thermal management
• Internal source/sink inputs to define default states for floating conditions

Applications

• Electronic throttle control systems
• Exhaust gas recirculation (EGR) actuators
• Turbocharger flap control mechanisms
• Industrial pump motor drives
• Medical device motor control

Procurement Notes

Verify the specific suffix PNBR2 to confirm the PQFN-32 package configuration and reel packaging type. Ensure compatibility with AEC-Q100 Grade 1 requirements for automotive deployment. Confirm that the 5 A continuous current rating aligns with the thermal design of the target PCB layout. Validate input logic levels against the internal source/sink definitions for proper interface integration.

Selection Notes

Select this component when a robust, single-chip H-bridge solution is required for brushed DC motors in harsh environments. The integrated SMARTMOS technology simplifies design by combining driver and protection functions. Consider the 20 kHz switching frequency for acoustic noise constraints. Evaluate the PQFN-32 footprint for space-constrained board layouts requiring high thermal performance.

Part Context

This part belongs to the MC33926 series of H-bridge drivers from NXP Semiconductors. It is categorized under Motor/Motion/Ignition Controllers & Drivers within the PMIC family. The series targets low-voltage DC servo motor control applications requiring precise current and voltage limiting capabilities.

Replacement Considerations

The MC33926ESR2 is a documented variant within the same product line. Verify if the ESR2 suffix indicates a different package or tape-and-reel specification compared to the PNBR2 version before substitution.