BQ2057TTS - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

BQ2057TTS
Manufacturer

TI
ChipWorker Part#

CW7608200
Category

Battery Management IC
Package

TSSOP-8
Description

Battery Charge Management Low Dropout Linear 2-cell Li-Ion Charge Controller with AutoCompTM, 8.2V Linear Charge Management Li-Ion/Li-Pol 2000mA 8.2V 8Pin TSSOP Tube
Documentation

Datasheet

BQ2057TTS Global Supplier

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BQ2057TTS Specifications

Attribute	Attribute Value

Part Number	BQ2057TTS
Manufacturer	TI
ChipWorker Part#	CW7608200
Category	Battery Management IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	TSSOP-8
Supply Voltage (DC)	15.0V (max)
Input Voltage (DC)	15.0 V
Output Voltage	8.2 V
Output Current	2 A
Number of Positions	8 Position
Power Dissipation	300 mW
Operating Temperature (Max)	70 ℃
Operating Temperature (Min)	-20 ℃
Power Dissipation (Max)	300 mW
Supply Voltage	4.5 V
Input Voltage	15 V
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Size-Length	3 mm
Size-Width	4.4 mm
Size-Height	1.15 mm
Operating Temperature	-20℃ ~ 70℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The BQ2057TTS is a low dropout linear 2-cell Li-ion Charge Controller with 8.2V AutoComp. It is designed for cost-sensitive and compact portable electronics. They combine high-accuracy current and voltage regulation, battery conditioning, temperature monitoring, charge termination, charge-status indication and AutoComp charge-rate compensation in a single 8-pin IC. The BQ2057 continuously measures battery temperature using an external thermistor. For safety, it inhibits charge until the battery temperature is within user-defined thresholds. It charges the battery in three phases: conditioning, constant current and constant voltage. If the battery voltage is below the low-voltage threshold, V(min), It pre-charges 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.
Requires small number of external components
Optional cell-temperature monitoring before and during charge
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

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- Vacuum packed
- Anti-static packaging
- Anti-vibration foam
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- X-ray inspection
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- Electrical testing
- Surface testing

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