UCC27423QDRQ1

UCC27423QDRQ1 Application Field and Working Principle

UCC27423QDRQ1 is a high-side, fully differential, low-side driver and MOSFET pre-driver subcircuits in one. It is a Power Management IC (PMIC) belonging to TI’s Gate Drivers family and the industry’s broadest current sense amplifier portfolio. It is designed to provide isolated and non-isolated gate driver solutions for standard, eMOS, and SiC MOSFETs and IGBTs. With the right combination of features and protection, UCC27423QDRQ1 can be used as a gate driver in a wide range of high-performance power management applications.

The UCC27423QDRQ1 has two low-side NFET drivers and two high-side PCH drivers. There are two switches inside the device – one P-type switch is used to control the high-side gate, and the other N-type switch is used to control the low-side gate. The low-side gate is driven by a dedicated low-side driver, while the high-side gate is driven by a pre-driver circuit. The pre-driver circuit features a current-mode logic (CML)-level shifter that can be used to switch the high-side gate on or off. The UCC27423QDRQ1 also features a current sense amplifier and independent delay circuits for each gate, as well as protection functions such as short circuit protection and under/overvoltage protection.

UCC27423QDRQ1 provides a wide range of benefits in many applications. It can be used in motor control, power supplies, motor drives, solar inverters, uninterruptible power supplies (UPS), automotive, and consumer applications where advanced power management is required. It is ideal for applications with multiple stages of power conversion, as it provides independent, accurate control of the phases even when the load current is changing rapidly. The current sense amplifier allows for precise current control, while the integrated protection features guard against various fault conditions.

The UCC27423QDRQ1 also provides high-efficiency switching of a power supply. Its low-side driver circuit can be used to drive the gate of an NFET with efficiency levels that are similar to those achieved using a high-side PCH driver. The high-side driver circuit uses an integrated CML-level shifter to drive the high-side gate of a PFET. This allows for higher efficiency and greater flexibility than a standard high-side driver.

In conclusion, UCC27423QDRQ1 is a high-performance PMIC that can be used in a wide range of high-power applications. Its combination of high-side and low-side driver circuits, current sense amplifier, and integrated protection features provide a solution for advanced power management applications. The device is ideal for power supplies, motor drives, solar inverters, and uninterruptible power supplies, as it offers precise current control and protection from fault conditions.