ZHCSE29A August 2015 – August 2015 UCC27714
PRODUCTION DATA.
The VDD power terminal for the device requires the placement of electrolytic capacitor as energy storage capacitor, because of UCC27714 is 4-A, peak-current driver. And requires the placement of low-esr noise-decoupling capacitance as directly as possible from the VDD terminal to the VSS terminal, ceramic capacitors with stable dielectric characteristics over temperature are recommended, such as X7R or better.
The recommended e-capacitor is a 22-µF, 50-V capacitor. The recommended decoupling capacitors are a 1-µF 0805-sized 50-V X7R capacitor, ideally with (but not essential) a second smaller parallel 100-nF 0603-sized 50-V X7R capacitor.
Similarly, a low-esr X7R capacitance is recommended for the HB-HS power terminals which must be placed as close as possible to device pins.
As described earlier in VDD and Under Voltage Lockout, the attention must be exercised to ensure that the VDD-VSS bias voltage does not dip from VDD(OFF) to 4-V level in 70 µs or less