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- BQ2057WSN - TI
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Manufacturer:TI
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ManyChip's Part#:MC1216658
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Category:Battery Management IC
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Package:SOIC-8
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Datasheet:Datasheet 3D Model
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Description:Battery Charge Management Low Dropout Linear 2-cell Li-Ion Charge Controller with AutoCompTM, 8.4V Linear Charge Management Li-Ion/Li-Pol 2000mA 8.4V 8Pin SOIC Tube
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Stock Locations:
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Availability:2,052 pcs In Stock
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MOQ:1 pcs
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Unit Price:$ 2.44
Updated at 18/06/2025 10:30:15(UTC+8)
Certifications
ManyChip is committed to product quality and safety with ISO 9001, ISO 13485, ISO 45001, UL, RoHS, CQC and REACH certifications.
Description
- The BQ2057WSN is a Lithium-ion (Li-ion) and Lithium-polymer (Li-pol) linear charge-management Integrated Circuit which is designed for compact portable electronics. The BQ2057 continuously measures battery temperature using an external thermistor. For safety, the charge controller inhibits charge until the battery temperature is within user-defined thresholds. The charge controller then charges the battery in three phases conditioning, constant current and constant voltage. If the battery voltage is below the low-voltage threshold, V(min), the charge controller precharges using a low current to condition the battery. The conditioning charge rate is approximately 10% of the regulation current. The conditioning current also minimizes heat dissipation in the external pass element during the initial stage of the charge. After conditioning, the charge controller applies a constant current to the battery. An external sense-resistor sets the current.
- Requires small number of external components
- Better than ±1% voltage regulation accuracy with pre-set voltages
- AutoComp™ Dynamic compensation of battery pack"s internal impedance to reduce charge time
- Optional cell-temperature monitoring before and during charge
- Integrated voltage and current regulation with programmable charge-current
- Integrated cell conditioning for reviving deeply discharged cells
- Charge status output for single or dual led or host processor interface
- Automatic battery-recharge feature
- Charge termination by minimum current
- Automatic low-power sleep mode when VCC is removed
- EVMs Available for quick evaluation
- Green product and no Sb/Br
BQ2057WSN Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Mounting Style | Surface Mount |
| Number of Pins | 8 Pin |
| Case/Package | SOIC-8 |
| Supply Voltage (DC) | 15.0V (max) |
| Input Voltage (DC) | 15.0 V |
| Output Voltage | 8.4 V |
| Output Current | 2000 mA |
| Number of Positions | 8 Position |
| Power Dissipation | 300 mW |
| Operating Temperature (Max) | 70 ℃ |
| Operating Temperature (Min) | -20 ℃ |
| Power Dissipation (Max) | 300 mW |
| Supply Voltage | 4.5V ~ 15V |
| Input Voltage | 15 V |
| Show | |
| Size-Length | 4.9 mm |
| Size-Width | 3.91 mm |
| Size-Height | 1.58 mm |
| Operating Temperature | -20℃ ~ 70℃ |
| Product Lifecycle Status | Active |
| Packaging | Tube |
| RoHS | RoHS Compliant |
| Lead-Free Status | Lead Free |
| REACH SVHC Compliance | No SVHC |
| REACH SVHC Compliance Edition | 2015/06/15 |
| ECCN Code | EAR99 |
Order guide
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charges, duties and taxes.
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- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
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