Details

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BUY BD9472FP https://www.utsource.net/itm/p/12608470.html

Parameter	Symbol	Min	Typ	Max	Unit
Input Voltage	VIN	4.5	-	36	V
Output Voltage	VOUT	-	12	-	V
Output Current	IOUT	-	2	3	A
Switching Frequency	fSW	-	200	-	kHz
Efficiency (Typical)	畏	-	92	-	%
Quiescent Current	IQ	-	10	-	渭A
Shutdown Current	ISD	-	1	-	渭A
Operating Temperature	TOP	-40	-	125	掳C
Storage Temperature	TSTG	-40	-	150	掳C
Thermal Resistance (Junction to Ambient)	R胃JA	-	65	-	掳C/W

Instructions for BD9472FP

1. Input Voltage (V_IN):

   • Ensure the input voltage is within the range of 4.5V to 36V.
   • Use appropriate input filtering and decoupling capacitors to stabilize the input voltage.

2. Output Voltage (V_OUT):

   • The typical output voltage is 12V. Adjust the feedback resistor network if a different output voltage is required.
   • Use output capacitors to filter the output and reduce ripple.

3. Output Current (I_OUT):

   • The maximum continuous output current is 3A. For higher currents, consider heat dissipation and thermal management.
   • Monitor the temperature to prevent overheating.

4. Switching Frequency (f_SW):

   • The typical switching frequency is 200kHz. This can be adjusted using external components if necessary.
   • Higher frequencies reduce the size of inductors and capacitors but increase switching losses.

5. Efficiency (畏):

   • The typical efficiency is 92%. Ensure good PCB layout and component selection to achieve optimal efficiency.
   • Minimize trace lengths and use low ESR capacitors to reduce losses.

6. Quiescent Current (I_Q):

   • The typical quiescent current is 10渭A. This is important for low-power applications.
   • Ensure that the quiescent current does not significantly impact the overall power consumption.

7. Shutdown Current (I_SD):

   • The typical shutdown current is 1渭A. Use the shutdown pin to turn off the device when not in use to save power.
   • Apply a logic high signal to the shutdown pin to enable the device.

8. Operating Temperature (T_OP):

   • The operating temperature range is from -40掳C to 125掳C.
   • Ensure adequate cooling and thermal management to keep the device within this range.

9. Storage Temperature (T_STG):

   • The storage temperature range is from -40掳C to 150掳C.
   • Store the device in a dry, cool place to prevent damage.

10. Thermal Resistance (R_胃JA):

    • The typical thermal resistance is 65掳C/W.
    • Use a heatsink or thermal pad to improve heat dissipation if the device will operate at high power levels.

Additional Notes:

• Always refer to the datasheet for detailed information and specific application notes.
• Ensure all connections are secure and follow good PCB design practices to avoid issues with noise and interference.

(For reference only)