UCC5390SCDR Isolators

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The UCC5390SCDR is a new type of isolator IC specifically designed for improved system performance in high-voltage, high-current applications and applications where the drive statics are required. This device is part of the range of high-performance isolators, designed for high-power gate drives and switching, with superior efficiency, safety and current-fault characteristics. UCC5390SCDR has become increasingly popular in various applications from low cost consumer electronics devices to high power equipment.

The UCC5390SCDR is a logical gate-drive solution for familiar applications such as motor control, dc-dc converter, UPS, latching switches, overload protection switches and full bridge circuits. It provides an easy to use and cost-effective way to implement isolated gate drivers in high-voltage applications, helping reduce board space and providing improved power efficiency. The device operates in the 2.7V to 48V range, making it suitable for both low and high voltage applications. Additionally, it has built-in signal conditioning for low power, low-impedance drive. The key feature of UCC5390SCDR is its integrated diode that supports low-side gate driving and offers independent, regulated drive to both the high-side and low-side gate drivers. This allows for greater power efficiency, improved noise immunity and lower power loss.

UCC5390SCDR is a three-terminal device that provides two isolated gate signals, one high side and one low side. The main benefit of this configuration is that the low-side gate driver can be driven with an independent current source, allowing for higher peak current drive and better power efficiency. The low-side gate and high-side gate are each independently controlled by two gate driver channels. The low-side gate is driven with an independent current source, while the high-side gate is driven with a separate current sink. The current mirror arrangement offers superior power transfer efficiency in comparison to single-channel gate drivers.

The UCC5390SCDR consists of two isolated gate drivers, each with its own current sense and protection circuitry. Both drivers have over temperature protection, under voltage lockout and load current protection. The gate driver allows for two independent and simultaneous switching of the high-side and low-side MOSFETs, increasing the reliability and noise immunity of the system. Furthermore, the UCC5390SCDR is designed to limit the current leakage path, eliminating the need for an external current discharge resistor.

In conclusion, the UCC5390SCDR is an ideal isolator IC for high-power applications requiring high drive current and reduced power dissipation. This device offers superior current drive capabilities with improved efficiency and reliability while also providing low side gate driving. It features over temperature protection, under voltage lockout and load current protection, making it a safe and reliable solution for various power applications.

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