MP6540H/MP6540HA are three-phase brushless DC motor drivers

MPS’ 50 V, 5 A and 6 A, three-phase power stage drivers offer PWM and enable inputs

The MP6540H and MP6540HA from Monolithic Power Systems are three-phase brushless DC motor drivers. These devices integrate three half-bridges consisting of six N-channel power MOSFETs, pre-drivers, gate drive power supplies, and current-sense amplifiers. The MP6540H has enable (EN) and PWM inputs for each half-bridge, while the MP6540HA has separate high-side (HS) and low-side (LS) inputs, otherwise they are identical. The MP6540H can deliver up to 6 A of peak current and 5 A of continuous output current, based on thermal and PCB conditions. The MP6540H uses an internal charge pump to generate the gate drive supply voltage for the high-side MOSFETs, and a trickle charge circuit that maintains sufficient gate drive voltage to operate at 100% duty cycle. Internal safety features include thermal shutdown, undervoltage lockout (UVLO), and overcurrent protection (OCP). The device is available in a QFN-26 (5 mm x 5 mm) package.

Features:

• 5.5 V to 50 V operating supply voltage
• Three integrated half-bridge drivers
• Maximum 5 A output current, 6 A peak current
• MOSFET ON resistance: HS + LS 45 mΩ
• MP6540H: PWM and EN inputs; MP6540HA: HS and LS inputs
• Internal charge pump supports 100% duty cycle operation
• Automatic synchronous rectification
• UVLO and thermal shutdown protection
• OCP
• Integrated bidirectional current-sense amplifiers
• Available in a QFN-26 (5 mm x 5 mm) package

more information: https://www.monolithicpower.com/en/mp6540h.html

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