UCC28781-Q1数据手册TI中文资料规格书

描述 Description

The UCC28781-Q1 is a zero-voltage-switching (ZVS) controller which can be used at very high switching frequencies to minimize the size of the transformer and enable high power density.

With direct synchronous rectifier (SR) control, the controller does not need a separate SR controller, as it can drive the SR FET directly to maximize efficiency and simplify design. (For isolated applications, an isolated gate-driver IC is required.)

Using adaptive dead-time control for ZVS, switching losses and EMI are minimized. This design results in a controller with extremely high conversion efficiency across the entire operating range.

The programmable adaptive burst mode (ABM) gives flexibility to control when the controller enters and exits standby mode to optimize standby power in light and no-load conditions. ABM also helps to reduce ripple and minimize audible noise.

The controller offers multiple protection modes with automatic restart (retry) responses.

特性 Features

• AEC-Q100 qualified for automotive applications:
• Temperature grade 1, TA: –40°C to 125°C
• Device HBM ESD classification level 2
• Device CDM ESD classification level C2A

• Functional Safety Capable
• Documentation available to aid functional safety system design

• Switching frequency: > 500 kHz
• Enables peak efficiency > 93 %
• Enables