What should engineers review before using UCC28C55QDRQ1?

Review its 8.4 V typical UVLO turn-on threshold, 7.6 V typical turn-off threshold, less than 50% maximum duty cycle, VDD transient protection, and CS-pin noise filtering.

What is the pinout of UCC28C55QDRQ1?

Use the UCC28C55QDRQ1 datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about UCC28C55QDRQ1 pinout to locate pins, power rails, and interface signals before layout.

UCC28C55QDRQ1 Datasheet, Specs, Alternatives & ECAD | Texas Instruments

AI summary

UCC28C55QDRQ1 is an automotive-qualified peak-current-mode PWM controller with 8.4 V/7.6 V UVLO and an internally limited output duty cycle below 50%.

Best for

Automotive isolated bias supplies
Current-mode DC/DC converters
Si or SiC MOSFET gate control requiring duty cycle below 50%

Avoid if

The topology needs near-100% duty cycle
The available controller bias cannot meet the UVLO turn-on threshold

Check before use

Confirm VDD remains within the 28 V recommended operating maximum and 30 V absolute maximum.
Confirm output frequency is half the oscillator frequency for this device.
Keep VREF and VDD bypass capacitors close to GND.