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BQ24104RHLRG4, BQ24105, BQ24105RHL

Table of contents:
Info of BQ24104RHLRG4
Info of BQ24105
Info of BQ24105RHL

BQ24104RHLRG4, BQ24105, BQ24105RHL Selling Leads, Datasheet

MFG:TI Package Cooled:2009+ROHS D/C:101

BQ24104RHLRG4, BQ24105, BQ24105RHL Picture

BQ24104RHLRG4, BQ24105, BQ24105RHL Datasheet download

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Part Number: BQ24104RHLRG4

MFG: TI

Package Cooled: 2009+ROHS

D/C: 101

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BQ24105 General Description

The bqSWITCHER™ series are highly integrated Li-ion and Li-polymer switch-mode charge management devices targeted at a wide range of portable applications. The bqSWITCHER™ series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge status, and charge termination, in a small, thermally enhanced QFN package. The system-controlled version provides additional inputs for full charge management under system control.

The bqSWITCHER charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on userselectable minimum current level. A programmable charge timer provides a safety backup for charge termination. The bqSWITCHER automatically restarts the charge cycle if the battery voltage falls below an internal threshold. The bqSWITCHER automatically enters sleep mode when VCC supply is removed.

BQ24105 Maximum Ratings

		UNIT
Supply voltage range (with respect to V_SS)	IN, VCC	20 V
Input voltage range (with respect to V_SS and PGND)	STAT1, STAT2, PG, CE, CELLS, SNS, BAT	0.3 V to 20 V
	OUT	0.7 V to 20 V
	CMODE, TS, TTC	7 V
	VTSB	3.6 V
	ISET1, ISET2	3.3 V
Voltage difference between SNS and BAT inputs (V_SNS - V_BAT)		±1 V
Output sink	STAT1, STAT2, PG	10 mA
Output current (average)	OUT	2.2 A
T_AOperating free-air temperature range		40°C to 85°C
T_J Junction temperature range		40°C to 125°C
T_stg Storage temperature		65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds		300°C

BQ24105 Features

· Ideal For Highly Efficient Charger Designs For Single-, Two- or Three-Cell Li-Ion and Li-Polymer Battery Packs
· Integrated Synchronous Fixed-Frequency PWM Controller Operating at 1.1 MHz With 0% to 100% Duty Cycle
· Integrated Power FETs For Up To 2-A Charge Rate
· High-Accuracy Voltage and Current Regulation
· Available In Both Stand-Alone (Built-In Charge Management and Control) and System-Controlled (Under System Command) Versions
· Status Outputs For LED or Host Processor Interface Indicates Charge-In-Progress, Charge Completion, Fault, and AC-Adapter Present Conditions
· 20-V Maximum Voltage Rating on IN and OUT Pins
· High-Side Current Sensing
· Optional Battery Temperature Monitoring
· Automatic Sleep Mode for Low Power Consumption
· System-Controlled Version Can Be Used In NiMH and NiCd Applications
· Uses Ceramic Capacitors
· Reverse Leakage Protection Prevents Battery Drainage
· Thermal Shutdown and Protection
· Built-In Battery Detection

BQ24105 Typical Application

· Handheld Products
· Portable Media Players
· Industrial and Medical Equipment
· Portable Equipment

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