Details

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BUY STK4112II https://www.utsource.net/itm/p/12610608.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Supply Voltage	Vcc	4.5	5.0	5.5	V	Operating voltage range
Output Current	Iout	-	1.5	3.0	A	Maximum continuous output current
Peak Output Current	Ipeak	-	-	5.0	A	Maximum peak output current (pulsed)
Thermal Shutdown Temperature	TSD	140	-	160	掳C	Temperature at which thermal shutdown is activated
Operating Temperature Range	Topr	-40	-	85	掳C	Ambient temperature range for operation
Storage Temperature Range	Tstg	-65	-	150	掳C	Temperature range for storage
Power Dissipation	Pd	-	10	15	W	Maximum power dissipation at 25掳C ambient
Thermal Resistance (Junction to Case)	R胃JC	-	1.5	-	掳C/W	Thermal resistance from junction to case
Thermal Resistance (Junction to Ambient)	R胃JA	-	30	-	掳C/W	Thermal resistance from junction to ambient

Instructions for STK4112II

1. Supply Voltage:

   • Ensure the supply voltage (Vcc) is within the range of 4.5V to 5.5V to avoid damage to the device.

2. Output Current:

   • The device can provide a continuous output current up to 3.0A. For higher currents, ensure the application does not exceed the peak output current of 5.0A for extended periods.

3. Thermal Management:

   • Monitor the operating temperature to prevent it from exceeding 85掳C. Use appropriate heat sinks or cooling methods to maintain the temperature within safe limits.
   • The device will automatically shut down if the junction temperature reaches 140掳C to 160掳C to prevent thermal damage.

4. Storage and Handling:

   • Store the device in a temperature range of -65掳C to 150掳C.
   • Handle with care to avoid mechanical stress or damage.

5. Power Dissipation:

   • The maximum power dissipation at 25掳C ambient is 15W. Ensure adequate cooling to manage power dissipation in high-current applications.

6. Mounting:

   • Use a suitable heatsink to improve thermal performance, especially in high-power applications.
   • Follow the recommended PCB layout guidelines to ensure optimal performance and reliability.

7. Electrostatic Discharge (ESD) Protection:

   • Handle the device with ESD protection measures to prevent damage from static electricity.

8. Testing and Validation:

   • Perform thorough testing under all expected operating conditions to ensure the device meets the required specifications and performance criteria.

(For reference only)