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Texas Instruments BQ2057WSNTR

Part No.:: BQ2057WSNTR

Manufacturer:: Texas Instruments

Package:: 8-SOIC (0.154, 3.90mm Width)

Datasheet:: BQ2057WSNTR.pdf

Description:: IC BATT CHG LI-ION 2CELL 8SOIC

In Stock:: 3358

Quantity:: Add To Cart

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BQ2057WSNTR Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
BatteryChemistry:
Lithium Ion/Polymer
NumberofCells:
2
Current-Charging:
Constant - Programmable
ProgrammableFeatures:
Current
FaultProtection:
-
ChargeCurrent-Max:
-
BatteryPackVoltage:
8.4V
Voltage-Supply(Max):
15V
Interface:
-
OperatingTemperature:
-20°C ~ 70°C (TA)
MountingType:
Surface Mount

BQ2057WSNTR this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including BQ2057WSNTR price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for BQ2057WSNTR to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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BQ2057WSNTR information

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BQ2057WSNTR Typical application Circuitry

BQ2057WSNTR

The BQ2057WSNTR is a variant of the BQ2057WSN, a linear battery charger IC specifically designed for single-cell lithium-ion and lithium-polymer batteries. Manufactured by Texas Instruments, this IC is tailored for applications requiring efficient and safe battery charging. The "TR" in its name indicates that it is provided in tape and reel packaging, commonly used for automated manufacturing processes. Digital cameras, portable music players, and smartphones are just a few examples of the many portable electronics that employ them.

BQ2057WSNTR: Functional Overview and Application Scenarios

Typical Applications

- Smartphones and Tablets: Efficiently charges lithium-ion batteries.

- Digital Cameras: Used for safe and reliable battery charging.

- Portable Audio Players: Ensures extended battery life and safety during charging.

Key Specifications

- Charging Management: Controls charging for lithium-ion/polymer batteries with precision.

- Current and Voltage Regulation: Offers constant current and voltage charging.

- Safety Features: Includes temperature monitoring and automatic recharge.

- Compact Design: Suitable for space-constrained applications.

Circuit Integration: BQ2057WSNTR in a Smartphone Charger

1. Power Supply and Battery Connection

- VCC (Pin 1): Connect to a 5V power supply, typically from a USB port.

- BAT (Pin 2): Connect to the positive terminal of the lithium-ion battery.

2. Ground Connection for Stability

- GND (Pin 3): Connect to the charger's common ground.

3. Control and Monitoring Functions

- CE (Charge Enable, Pin 4): Connect to a control output (e.g., from a microcontroller) to manage charging.

- TEMP (Pin 5): Attach to a thermistor network for battery temperature monitoring.

4. Current Setting and Status Indicator

- PROG (Pin 6): Use a resistor connected to this pin to set the desired charge current.

- STAT (Pin 7): Connect to an LED or a microcontroller input for indicating charging status.

Design Considerations

- Reliable Power Source: Ensure the power source is within the recommended voltage range for stable operation.

- Correct Current Setting: Select a resistor for the PROG pin that matches the charging current requirement of the battery.

- Accurate Temperature Sensing: Place the thermistor close to the battery for effective temperature monitoring.

- Effective Charge Enable Control: Implement logic control for the CE pin to enable/disable charging as needed.

- Clear Status Indication: Utilize the STAT pin to provide visual or system feedback on the charging process.

- Safety Measures: Incorporate protections for over-voltage, short-circuit, and over-temperature conditions.

- Heat Dissipation: Design the charger circuit to manage heat effectively, especially at higher charging currents.

- Component Quality: To improve the charger's longevity and safety, choose high-quality components.

Incorporating the BQ2057WSNTR into a smartphone charging circuit requires careful consideration of these factors to ensure efficient, safe, and reliable battery charging. For detailed specifications, including pin layout and electrical parameters, refer to the BQ2057WSNTR's datasheet and technical documentation.

BQ2057WSNTR FAQ

1. How to order BQ2057WSNTR on icwhale.com?

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We have a professional and experienced quality control team to strictly verify and test the BQ2057WSNTR. All suppliers must pass our qualification reviews before they can publish their products including BQ2057WSNTR on icwhale.com; we pay more attention to the channels and quality of BQ2057WSNTR products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the BQ2057WSNTR price and inventory displayed accurate?

The price and inventory of BQ2057WSNTR fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

4. What forms of payment are accepted?

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Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of BQ2057WSNTR?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the BQ2057WSNTR we delivered, we will accept the replacement or return of the BQ2057WSNTR only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of BQ2057WSNTR.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations