UCC27201D

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The UCC27201D single‑channel non-inverting driver is designed to control power MOSFETs, IGBTs and high power bipolar transistors. This high‑efficiency, protection‑infused driver utilizes an updated propagation delay line technology and integrated Thermal Shutdown (TSD) feature to guarantee thermal protection. This implementation of a low‑side driver combines a low quiescent current and fast, soft‑switching capabilities to provide superior power efficiency.

Application Field

The UCC27201D is highly suitable for use in synchronous buck converters, step-down, low dropout and point-of-load DC/DC converters, power factor correction, motor drives, home appliance, office automation, kiosk, audio visual, displays, battery chargers and other similar industry applications that require high power efficiency or fast soft-switching. The extremely fast soft-switching capabilities of the UCC27201D make it an ideal fit for boosting power factors, maximizing power efficiency and reducing switching losses in dc-to-dc converters. This makes the UCC27201D the perfect solution for power supply design requiring higher power conversion efficiency, fast transient response and top performance.

Work Principle

The UCC27201D is a high-performance IC designed to drive N-Channel MOSFETs, IGBTs and power bipolar transistors with low stray capacitance. It provides low-side gate control and over-current protection (OCP) on the same chip. It also provides external logic control and protection, including over-voltage protection (OVP), under-voltage protection (UVP), over-temperature protection (OTP) and thermal shutdown (TSD). The UCC27201D utilizes an updated propagation delay line technology to provide up to 10 A and 10V power MOSFET/IGBTs drive, with insignificant turn-on and turn-off delays.

The UCC27201D also features adjustable slew rate control, leading edge blanking and dead time control. The adjustable slew rate control adjusts the switching rate of the gate drive signal independent of the switching rate of the power device. This allows for a faster turn-on of the power device and a slower turn-off. This feature also reduces the input capacitance of the MOSFET and the ringing in the power path. The leading edge blanking feature reduces the undershoot voltage at the gate of the MOSFET/IGBT, reducing the gate oxide stress and improving the impedance of the external capacitor. The dead time control allows the user to program a delay time to prevent excessive MOSFET/IGBT turn-on/off overlapping.

The UCC27201D is also equipped with an over-voltage protection (OVP) feature to prevent a MOSFET or IGBT from being over-driven, and an under-voltage protection (UVP) feature to disable the driver when the voltage at the bottom of the MOSFET is too low. The UCC27201D also features a thermal shutdown (TSD) feature for additional protection. TSD will be triggered when the junction temperature exceeds the trip point temperature, helping to protect the IC from damage caused by excessive heat.

In conclusion, the UCC27201D offers low-side gate driver solutions for MOSFETs, IGBTs, and power bjt with maximum performance and thermal protection. It is designed to provide fast soft-switching and excellent power efficiency in synchronous buck, step-down and other dc-to-dc converters with up to 10A and 10V power MOSFET/IGBTs drive ability. With features such as adjustable slew rate control, leading edge blanking, dead time control, OVP and UVP protection, and thermal shutdown, the UCC27201D is the perfect solution for power supply design.The specific data is subject to PDF, and the above content is for reference