Details

---

BUY UCC28060DG4 https://www.utsource.net/itm/p/6360949.html
Natural Interleaving? DUAL-PHASE TRANSITION-MODE PFC CONTROLLER

Parameter	Description	Min	Typ	Max	Unit
VIN	Input Voltage	10	-	75	V
IIN	Input Current	-	-	1.5	A
VOUT	Output Voltage	3.3	-	15	V
IOUT	Output Current	-	-	5	A
fSW	Switching Frequency	50	-	500	kHz
VUVLO	Under-Voltage Lockout Threshold	8.5	-	-	V
VUVLO_Hyst	UVLO Hysteresis	-	150	-	mV
VOVLO	Over-Voltage Lockout Threshold	-	-	85	V
VOVLO_Hyst	OVLO Hysteresis	-	150	-	mV
ISNS	Sense Current	-	-	0.5	A
TSD	Thermal Shutdown Temperature	-	-	150	°C
TJ	Junction Temperature	-40	-	150	°C
Storage Temperature	-	-65	-	150	°C
Operating Humidity	-	0	-	95	% RH

Instructions for UCC28060DG4

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 10V to 75V.
   • Use appropriate filtering and protection circuits to maintain stability.

2. Output Voltage (VOUT):

   • Set the output voltage using the feedback resistor network.
   • Monitor the output voltage to ensure it stays within the specified range of 3.3V to 15V.

3. Switching Frequency (fSW):

   • Adjust the switching frequency by selecting the appropriate external timing resistor.
   • The typical operating range is from 50kHz to 500kHz.

4. Under-Voltage Lockout (UVLO):

   • The device will shut down if the input voltage drops below 8.5V.
   • The hysteresis is typically 150mV to prevent oscillation near the threshold.

5. Over-Voltage Lockout (OVLO):

   • The device will shut down if the input voltage exceeds 85V.
   • The hysteresis is typically 150mV to prevent oscillation near the threshold.

6. Sense Current (ISNS):

   • Use an external current sense resistor to monitor the output current.
   • The maximum sense current is 0.5A.

7. Thermal Shutdown (TSD):

   • The device will shut down if the junction temperature exceeds 150°C.
   • Ensure proper heat sinking and cooling to maintain safe operating temperatures.

8. Junction Temperature (TJ):

   • The junction temperature should be maintained between -40°C and 150°C.
   • Use thermal management techniques to keep the device within this range.

9. Storage Temperature:

   • Store the device in an environment with temperatures ranging from -65°C to 150°C.

10. Operating Humidity:

    • The device can operate in environments with humidity levels from 0% to 95% RH.

11. General Recommendations:

    • Use high-quality components and follow good PCB layout practices.
    • Ensure all connections are secure and free from corrosion.
    • Regularly inspect the device and its connections for signs of wear or damage.

(For reference only)