Details

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BUY BQ24751ARHD https://www.utsource.net/itm/p/12591031.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Continuous	4.5		28	V
Charging Current	ICHG			1.5	3.0	A
Battery Float Voltage	VFB			4.2	4.2	V
System Voltage	VOUT		3.0		5.5	V
Efficiency	η	VIN = 12V, IOUT = 1A	88			%
Operating Temperature	TOPR	Storage	-40		85	°C
Shutdown Current	ISD	VIN = 24V		60		μA

Instructions for BQ24751ARHD

1. Input Connection:

   • Connect the input voltage (VIN) to a power source within the range of 4.5V to 28V.

2. Output Configuration:

   • Set the system output voltage (VOUT) according to your application requirements, ensuring it stays within 3.0V to 5.5V.

3. Charging Parameters:

   • Configure the charging current (ICHG) up to a maximum of 3.0A depending on the battery specifications.
   • Set the battery float voltage (VFB) typically to 4.2V for lithium-ion batteries.

4. Thermal Management:

   • Ensure the device operates within the temperature range of -40°C to 85°C for optimal performance and longevity.

5. Efficiency Considerations:

   • For best efficiency, operate the device with an input voltage around 12V when delivering 1A of output current.

6. Shutdown Mode:

   • The device enters shutdown mode at very low currents, consuming less than 60μA when not in use.

7. Safety Precautions:

   • Always adhere to the maximum ratings provided to prevent damage to the component.
   • Implement appropriate circuit protection measures such as fuses and transient voltage suppressors.

(For reference only)