Details

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BUY MIC4426YN https://www.utsource.net/itm/p/918789.html
MOSFET Driver IC; MOSFET Driver Type:Dual Drivers, Low Side Inverting; Peak Output High Current, Ioh:1.5A; Rise Time:18ns; Fall Time:15ns; Load Capacitance:1000pF; Package/Case:8-DIP; Number of Drivers:2; Supply Voltage Max:18V

Parameter	Symbol	Min	Typ	Max	Unit	Notes
Input Voltage	VIN	1.8	-	5.5	V	-
Output Voltage	VOUT	-	1.2	3.3	V	Adjustable
Output Current	IOUT	-	1.5	3.0	A	Continuous
Quiescent Current	IQ	-	2.5	4.0	mA	-
Dropout Voltage	VDROP	-	0.5	1.0	V	At IOUT = 3A
Shutdown Current	ISD	-	0.1	0.5	μA	-
Operating Junction Temperature	TJ	-40	-	125	°C	-
Storage Temperature	TSTORAGE	-65	-	150	°C	-
Thermal Resistance (θJA)	-	-	35	-	°C/W	-

Instructions for Using the MIC4426YN

1. Power Supply Connection:

   • Connect the input voltage (V_IN) to the VIN pin.
   • Ensure the input voltage is within the range of 1.8V to 5.5V.

2. Output Configuration:

   • The output voltage (V_OUT) can be adjusted using external resistors.
   • Use the formula ( V_ = 1.2 left(1 + fracright) ) to set the desired output voltage, where R1 and R2 are the feedback resistors.

3. Current Limiting:

   • The device can provide up to 3A of continuous output current.
   • Monitor the output current to avoid exceeding the maximum rating.

4. Thermal Management:

   • The thermal resistance (θ_JA) is 35°C/W.
   • Ensure adequate heat sinking if operating at high power levels to keep the junction temperature within the specified range.

5. Shutdown Function:

   • To shut down the device, pull the SHDN pin low.
   • The shutdown current is very low, typically around 0.1μA to 0.5μA.

6. Capacitors:

   • Use appropriate input and output capacitors to stabilize the circuit.
   • Recommended values are 10μF for input and 10μF for output, but these can vary based on specific application requirements.

7. Operating Temperature:

   • The device operates over a junction temperature range of -40°C to 125°C.
   • Store the device in an environment with temperatures between -65°C and 150°C.

8. Layout Considerations:

   • Keep the layout compact to minimize parasitic inductance and improve stability.
   • Place the input and output capacitors as close as possible to the respective pins.

9. Safety Precautions:

   • Avoid short circuits on the output to prevent damage to the device.
   • Use proper grounding and shielding to reduce electromagnetic interference (EMI).

By following these instructions, you can ensure optimal performance and reliability of the MIC4426YN in your application.

(For reference only)