BQ24109RHLR
ActiveSWITCHING BATTERY CHARGER LI-FEPO4/LI-ION/LI-POL/NICD/NIMH 2000MA 4.2V 20-PIN VQFN EP T/R
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BQ24109RHLR
ActiveSWITCHING BATTERY CHARGER LI-FEPO4/LI-ION/LI-POL/NICD/NIMH 2000MA 4.2V 20-PIN VQFN EP T/R
Technical Specifications
Parameters and characteristics for this part
| Specification | BQ24109RHLR |
|---|---|
| Battery Chemistry | Lithium Ion/Polymer |
| Battery Pack Voltage | 4.2 V |
| Charge Current - Max [Max] | 2 A |
| Current - Charging | Constant - Programmable |
| Fault Protection | Over Voltage, Over Temperature |
| Mounting Type | Surface Mount |
| Number of Cells | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 20-VFQFN Exposed Pad |
| Programmable Features | Current, Timer |
| Supplier Device Package | 20-VQFN (3.5x4.5) |
| Voltage - Supply (Max) [Max] | 16 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 5.19 | |
| Digi-Reel® | 1 | $ 5.19 | ||
| Tape & Reel (TR) | 3000 | $ 2.61 | ||
| Texas Instruments | LARGE T&R | 1 | $ 3.92 | |
| 100 | $ 3.43 | |||
| 250 | $ 2.41 | |||
| 1000 | $ 1.94 | |||
Description
General part information
BQ24109 Series
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 VQFN 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 user- selectable 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 VCCsupply is removed.
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 VQFN package. The system-controlled version provides additional inputs for full charge management under system control.