Details

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BUY BQ2085DBT https://www.utsource.net/itm/p/4294607.html
SBS-COMPLIANT GAS GAUGE IC FOR USE WITH THE bq29311

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VIN	3.6	-	17	V	Operating input voltage range
Charging Current	ICHG	-	1.5	2	A	Maximum charging current
Battery Voltage	VBATT	-	-	-	V	Battery voltage
Thermal Shutdown	TSD	-	-	140	°C	Temperature at which the device shuts down
Pre-charge Current	ITRICKL	-	0.2	0.3	A	Pre-charge current for deeply discharged batteries
Safety Timer	TSAFE	-	12	20	h	Maximum charging time before safety timer expires
Charge Termination	ITERM	-	0.05	0.1	A	Charge termination current
Quiescent Current	IQ	-	0.5	1	mA	Quiescent current during operation
Standby Current	ISTBY	-	0.02	0.05	mA	Quiescent current in standby mode
Package	-	-	-	-	TSSOP	Package type
Operating Temperature	TOPR	-40	-	85	°C	Operating temperature range
Storage Temperature	TSTG	-65	-	150	°C	Storage temperature range

Instructions:

1. Power Supply Connection:

   • Connect the input power supply to the VIN pin. Ensure the input voltage is within the specified range (3.6V to 17V).

2. Battery Connection:

   • Connect the battery to the BATT pins. The battery voltage should be monitored to ensure it remains within safe operating limits.

3. Charging Configuration:

   • Set the charging current using an external resistor connected to the ISET pin. The formula to calculate the resistor value is: R = 1000 / ICHG.
   • For pre-charge current, use the TRICKL pin to set the desired current.

4. Safety Timer:

   • The safety timer can be configured using an external capacitor connected to the TMR pin. The formula to calculate the capacitor value is: C = TSAFE * 1000 / 12.

5. Charge Termination:

   • The charge termination current is set by the device internally but can be adjusted using the ITERM pin if needed.

6. Thermal Management:

   • Monitor the device temperature to ensure it does not exceed 140°C. If the temperature exceeds this threshold, the device will automatically shut down to prevent damage.

7. Standby Mode:

   • To enter standby mode, disconnect the input power or set the EN pin to low. In standby mode, the quiescent current is significantly reduced.

8. Package Handling:

   • Handle the TSSOP package with care to avoid damaging the pins. Follow standard ESD precautions to prevent damage from static electricity.

9. Operating and Storage Conditions:

   • Ensure the device operates within the specified temperature range (-40°C to 85°C) and is stored within the storage temperature range (-65°C to 150°C).

For detailed application notes and further information, refer to the BQ2085DBT datasheet provided by the manufacturer.

(For reference only)