Details

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BUY UCC28950PWR https://www.utsource.net/itm/p/5344159.html
Green Phase-Shifted Full-Bridge Controller With Synchronous Rectification

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	V_IN	10	-	400	V	Operating input voltage range
Output Voltage	V_OUT	-	5	-	V	Fixed output voltage
Switching Frequency	f_SW	-	65	-	kHz	Nominal switching frequency
Efficiency	η	-	90	-	%	Typical efficiency
Quiescent Current	I_Q	-	2.5	-	mA	Supply current in shutdown mode
Load Regulation	ΔV_LOAD	-	±0.5	-	%	Output voltage change with load
Line Regulation	ΔV_LINE	-	±0.3	-	%	Output voltage change with line variation
Operating Temperature	T_OP	-40	-	125	°C	Operating temperature range
Storage Temperature	T_STG	-65	-	150	°C	Storage temperature range

Instructions for UCC28950PWR

1. Power Supply Connection:

   • Connect the input power supply within the specified operating voltage range (10V to 400V).

2. Output Configuration:

   • Ensure the output is set to the fixed voltage of 5V. Adjust external components if necessary.

3. Switching Frequency Adjustment:

   • The nominal switching frequency is 65kHz. Verify that this setting meets your application requirements.

4. Efficiency Considerations:

   • The device typically operates at 90% efficiency. Optimize circuit design for maximum performance.

5. Current Monitoring:

   • Monitor quiescent current, especially during shutdown modes, to ensure it remains around 2.5mA.

6. Regulation Checks:

   • Regularly check both load and line regulation to ensure stable output voltage under varying conditions.

7. Temperature Management:

   • Operate the device within the temperature range of -40°C to 125°C. Store it between -65°C and 150°C.

8. Safety Precautions:

   • Always follow safety guidelines when handling high voltages and ensure proper ventilation for heat dissipation.

(For reference only)