Details

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BUY UCC2805D https://www.utsource.net/itm/p/12398991.html

Parameter	Symbol	Min	Typical	Max	Unit	Description
Input Voltage	VIN	10	-	60	V	Operating input voltage range
Output Voltage	VOUT	-	5.0	-	V	Nominal output voltage
Quiescent Current	IQ	-	1.5	-	mA	Quiescent current at no load
Load Regulation	-	-	±2	-	%	Change in output voltage over load range
Line Regulation	-	-	±1	-	%	Change in output voltage over input voltage range
Efficiency	η	-	75	-	%	Typical efficiency at full load
Start-up Time	tSTART	-	100	-	ms	Time to reach regulation from initial power application
Shutdown Current	ISD	-	0.1	-	μA	Current consumption in shutdown mode
Thermal Shutdown	TSD	-	160	-	°C	Temperature at which the device initiates thermal shutdown
Operating Temperature	TOPR	-40	-	125	°C	Operating temperature range
Storage Temperature	TSTG	-65	-	150	°C	Storage temperature range

Instructions for Using UCC2805D

1. Input Voltage (VIN):

   • Ensure the input voltage is within the specified range of 10V to 60V to avoid damage to the device.

2. Output Voltage (VOUT):

   • The nominal output voltage is 5.0V. Use appropriate feedback components to maintain this voltage under varying load conditions.

3. Quiescent Current (IQ):

   • The quiescent current is typically 1.5mA. This should be considered when designing the power supply to minimize power loss.

4. Load Regulation:

   • The output voltage can vary by ±2% over the load range. Ensure that the load does not exceed the maximum rating to maintain stable output.

5. Line Regulation:

   • The output voltage can vary by ±1% over the input voltage range. This ensures minimal change in output voltage as the input voltage fluctuates.

6. Efficiency (η):

   • The typical efficiency is 75% at full load. Design the circuit to optimize efficiency, especially in high-power applications.

7. Start-up Time (tSTART):

   • The device takes approximately 100ms to reach regulation after power is applied. Ensure that downstream circuits can handle this delay.

8. Shutdown Current (ISD):

   • The shutdown current is very low at 0.1μA, making it suitable for battery-powered applications where low standby power is critical.

9. Thermal Shutdown (TSD):

   • The device will initiate thermal shutdown at 160°C to prevent damage from overheating. Ensure adequate cooling or heat dissipation in high-temperature environments.

10. Operating Temperature (TOPR):

    • The device operates reliably between -40°C and 125°C. Avoid operating outside this range to prevent performance degradation or failure.

11. Storage Temperature (TSTG):

    • Store the device between -65°C and 150°C to ensure long-term reliability and performance.

12. Handling and Installation:

    • Handle the device with care to avoid static discharge and physical damage.
    • Follow recommended PCB layout guidelines to ensure optimal performance and reliability.
    • Use appropriate decoupling capacitors to filter noise and stabilize the power supply.

13. Testing and Troubleshooting:

    • Test the device under various load and input voltage conditions to verify its performance.
    • If issues arise, check for proper connections, correct component values, and thermal management.

(For reference only)