MT7932 Bidirectional Load Switch with I2C interface for USB PD Application
Candidate for:EE Awards - Power Semiconductor
As USB Type-C with Power Delivery (PD) becomes the universal interface for high-power (up to 240W) and high-data-rate applications, system designers face critical challenges: managing dynamic and wide range of power contracts, preventing fault propagation, and minimizing solution footprint.
The MT7932 is a high-voltage high-current bidirectional load switch developed by M3TEK for USB Type-C PD applications. This IC features high voltage and current rating at 33V and 5A with integrated ultra-low Rdson power devices,bidirectional power flow with FRS function, ideal diode to reverse blocking, and I2C digital interface.
MT7932 provides comprehensive protection functions including Input voltage surge protection; Input current surge protection; Output constant-current control; Output short-circuit protection; Thermal shutdown protection. Additionally, the I2C interface of the device enables digital control over: Power flow direction control; Input overvoltage threshold; Output current limit level; Soft-start time; Undervoltage threshold and Discharge time. MT7932 achieves high efficiency, compact footprint, minimal external components, and delivers robust yet flexible protection capabilities.
• Wide Supply Voltage Range from 3.3V to 33V
• 36V ABM rating on Port VBUS1 and VBUS2
• Integrate a 25mΩ Ultra Low Rdson Protection Switch
• I2C Interface
o Programmable Soft-Start Time
o Programmable Input Over-voltage Threshold
o Programmable current limit
o Programmable power direction
o Programmable ideal diode function
• Each Port VBUS1/VBUS2 Independent Control
• Package QFN 3x3_16L
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