UCD7232RTJT

PMIC - Gate Drivers: UCD7232RTJT application field and working principle

UCD7232RTJT is a Dual-channel, intelligent multiphase inductive load gate driver with diagnostics capabilities for the high-power segment of various industries, such as automotive, commercial and industrial sectors. Its application field and working principle will be introduced in this article.

Application Field of UCD7232RTJT

The UCD7232RTJT provides a range of advantages such as reduced bill of materials, superior efficiency, improved power conversion and thermal performance in application. With the high-side and low-side half-bridges, it can provide a perfect drive solution when driving power MOSFETs, GaN-FETs and IGBTs for multiphase forwarding converters in various fields such as digital appliance, Communication equipment, Industrial automation, Motor power control, and Automotive.

The UCD7232RTJT is applicable for a wide range of low-voltage and high-voltage driving requirements, offering many control options. With its extended supply voltage range from 2.5V to 28V, it is suitable for driving power MOSFETs, GaN-FETs and IGBTs with a maximum gate-source voltage of up to 40V. The low gate-charge versions of the MOSFETs prevent the requirement of additional gate-drive supplies as well as intrinsic gate-switching losses.

The UCD7232RTJT comes with two main built-in channels, each with its own independent bootstrap power supply that is effective enough to support a robust gate drive of IGBTs and MOSFETs with voltages up to 450V.

Working Principle of UCD7232RTJT

The UCD7232RTJT provides a complete intelligent and amplifier gate drive solution designed to drive MOSFETs, GaN-FETs and IGBTS in medium and high power applications. It features a fast turn-on and turn-off time, 8bit-digital diagnostics and protection, and fault detection that can be triggered when any of the devices are in the fault state.

The features of the UCD7232RTJT include power-on reset, logic under and open-drain fault detection, over-temperature and over-voltage protection, and latching and reset capabilities. It also provides both pre-charge and drive capability. In addition, the UCD7232RTJT supports an adjustable gain and drive current level, as well as adjustable over-voltage and over-temperature thresholds.

The UCD7232RTJT’s dual channel driver is capable of achieving high efficiency of up to 95% due to its low quiescent system current. It delivers superior power conversion with the integrated diagnostic signaling that warns of potential system faults, enabling the user to react accordingly to ensure system reliability.

Conclusion

The UCD7232RTJT is an intelligent, multiphase inductive load gate driver with diagnostics capabilities designed for high-power applications, such as automotive, digital appliance, communication equipment, industrial automation, and motor power control. It offers an extended supply voltage range from 2.5V to 28V and a wide range of control options. It features pre-charge capability, 8bit digital diagnostics and protection, fault detection, adjustable gain and current level, over-temperature protection, and open-drain fault detection. It also offers high efficiency, superior power conversion, and low quiescent system current.