Details

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BUY L6278AC https://www.utsource.net/itm/p/8840891.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc	Operating	4.5	-	20	V
Output Current per Phase	Iout	Continuous	-	1.5	2.0	A
Peak Output Current	Ipeak		-	3.0	3.5	A
Thermal Shutdown	TSD		160	-	-	°C
Operating Temperature	Topr	Storage	-40	-	85	°C
Standby Current	Isb	Vcc = 5V	-	10	-	μA
Power Dissipation	Pd	Ta = 25°C	-	1.25	-	W

Instructions for L6278AC

1. Power Supply Connection:

   • Connect the supply voltage (Vcc) within the range of 4.5V to 20V.
   • Ensure proper decoupling capacitors are placed close to the power pins to maintain stability.

2. Current Limiting:

   • The device can handle a continuous output current up to 1.5A per phase, with peak currents up to 3.5A.
   • Use external resistors or components as necessary to limit current and protect the device from damage.

3. Thermal Management:

   • Monitor the operating temperature to ensure it does not exceed 85°C.
   • If the junction temperature reaches approximately 160°C, thermal shutdown will activate to protect the device.

4. Standby Mode:

   • In standby mode, the current consumption is minimal (around 10μA at 5V), which helps in reducing power consumption during inactive periods.

5. Heat Dissipation:

   • Ensure adequate heat dissipation to keep the power dissipation within safe limits, especially when operating near the maximum allowable temperatures.

6. Layout Considerations:

   • Follow recommended PCB layout guidelines to minimize electromagnetic interference and improve performance.
   • Keep signal traces short and direct, especially for high-frequency signals.

7. Safety Precautions:

   • Always use appropriate safety measures when handling and testing electronic components.
   • Ensure all connections are secure and correct to prevent damage to the device or surrounding components.

(For reference only)