SLUSD31F October 2018 – July 2026 UCC23513
PRODUCTION DATA
The recommended input supply voltage (VCC) for the UCC23513 device is from 14V to 33V. The internal UVLO protection feature of the device determine the lower limit of the range of output bias-supply voltage (VCC). VCC voltage must not fall below the UVLO threshold for normal operation, or else the gate-driver outputs can become clamped low for more than 20μs by the UVLO protection feature. The higher limit of the VCC range depends on the maximum gate voltage of the power device that is driven by the UCC23513 device, and must not exceed the recommended maximum VCC of 33V. Place a local bypass capacitor between the VCC and VEE pins, with a value from 220nF to 10μF for device biasing. TI recommends placing an additional 100nF capacitor in parallel with the device biasing capacitor for high-frequency filtering. Position both capacitors as close to the device as possible. TI recommends using low-ESR, ceramic surface-mount capacitors.
If only a single, primary-side power supply is available in an application, isolated power is generated for the secondary side with the help of a transformer driver such as Texas Instruments™ SN6501 or SN6505A. For such applications, detailed power supply design and transformer selection recommendations are available in SN6501 Transformer Driver for Isolated Power Supplies datasheet and SN6505A Low-Noise 1A Transformer Drivers for Isolated Power Supplies datasheet.