TI Unveils Fully-Integrated Fusion Digital Power Dual Power Driver with Onboard Power MOSFETs

Texas Instruments Inc. (TI) introduced a digital power dual synchronous-buck driver with integrated power MOSFETs, protection blocks and monitoring features, which are said to help save board space and reduce component count by as much as 80% compared to industry standards.

The UCD7242 provides designers the flexibility of two independent 10A rails or one 20A rail in a small package. The highly accurate on-die current sensing element eliminates the need for calibration or temperature compensation. The UCD7242’s input voltage range of 2.2 to 18V supports a variety of applications, such as testing and instrumentation, telecommunications, merchant power supplies, and motherboards with multiple points of load.

TI’s easy-to-use Fusion Digital Power Designer Graphical User Interface (GUI) allows the designer to easily enable the UCD7242’s features when paired with a UCD9xxx controller. The free, downloadable tool simplifies the development process and speeds time-to-market by allowing the designer to configure all device parameters in minutes.

Key features and benefits of the UCD7242 include: matched drivers and MOSFETs are capable of driving either two outputs at 10A each or one 20A output, ranging from 2.2 to 18V, and 300 kHz to 2 MHz, providing design flexibility; saves space, component count, and design time by integrating high-side MOSFETs, low-side MOSFETs, drivers, current sensing circuitry, temperature sensing circuitry, and necessary protection functions into a small 6 x 6mm QFN package; the UCD7242’s advanced monitoring, including accurate current monitoring outputs (+/-5%) and a temperature monitoring output, reduces part count, increases reliability and speeds time to market; the accurate current limit (+/-3.3%), thermal shutdown, and separate flag per channel protect the power stage system; and a dedicated control signal for switching off the low-side MOSFET of each channel makes the UCD7242 highly efficient, even under low load conditions.

The UCD7242 is available now in a QFN-32 package and is priced at $2.65 in quantities of 1,000.