BQ2057PDGKRG4

BQ2057PDGKRG4
Mfr. #:
BQ2057PDGKRG4
Description:
Battery Management Li-Ion LDO Linear Charge Management IC
Lifecycle:
New from this manufacturer.
Datasheet:
BQ2057PDGKRG4 Datasheet
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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ECAD Model:
More Information:
BQ2057PDGKRG4 more Information BQ2057PDGKRG4 Product Details
Product Attribute
Attribute Value
Manufacturer:
Texas Instruments
Product Category:
Battery Management
Product:
Charge Management
Battery Type:
Li-Ion, Li-Polymer
Output Voltage:
4.1 V
Output Current:
2000 mA
Operating Supply Voltage:
18 V
Minimum Operating Temperature:
- 20 C
Maximum Operating Temperature:
+ 70 C
Package / Case:
VSSOP-8
Packaging:
Reel
Type:
Charge Controllers
Brand:
Texas Instruments
Mounting Style:
SMD/SMT
Product Type:
Battery Management
Factory Pack Quantity:
1
Subcategory:
PMIC - Power Management ICs
Unit Weight:
0.004938 oz
Tags
BQ2057PD, BQ2057P, BQ2057, BQ205, BQ20, BQ2
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Step1: Vacuum Packaging with PL
Step1:
Vacuum Packaging with PL
Step2: Anti-Static Bag
Step2:
Anti-Static Bag
Step3: Packaging Boxes
Step3:
Packaging Boxes
***ser
Battery Management Li-Ion LDO Linear Charge Management IC
***i-Key
IC LI-ION LDO CHRG MGMT 8VSSOP
***ark
Battery Management IC; Battery Type:Li-Ion, Li Polymer; Input Voltage:15V; Battery Charge Voltage:4.1V; Charge Current Max:2A; Battery Management Case Style:MSOP; No. of Pins:8; No. of Series Cells:1 ;RoHS Compliant: Yes
***as Instruments
The BENCHMARQ bq2057 series advanced Lithium-Ion (Li-Ion) and Lithium-Polymer (Li-Pol) linear charge-management ICs are 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. MSOP, TSSOP, and SOIC package options are offered to fit a wide range of end applications. The bq2057 continuously measures battery temperature using an external thermistor. For safety, the bq2057 inhibits charge until the battery temperature is within user-defined thresholds. The bq2057 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 bq2057 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 bq2057 applies a constant current to the battery. An external sense-resistor sets the current. The sense-resistor can be on either the high or low side of the battery without additional components. The constant-current phase continues until the battery reaches the charge-regulation voltage. The bq2057 then begins the constant-voltage phase. The accuracy of the voltage regulation is better than 1% over the operating-temperature and supply-voltage ranges. For single and dual cells, the bq2057 is offered in four fixed-voltage versions: 4.1 V, 4.2 V, 8.2 V, and 8.4 V. Charge stops when the current tapers to the charge termination threshold, I(TERM). The bq2057 automatically restarts the charge if the battery voltage falls below the V(RCH) threshold. The designer also may use the AutoComp feature to reduce charging time. This proprietary technique allows safe and dynamic compensation for the internal impedance of the battery pack during charge.
Part # Description Stock Price
BQ2057PDGKRG4
DISTI # BQ2057PDGKRG4-ND
IC LI-ION LDO CHRG MGMT 8VSSOP
RoHS: Compliant
Min Qty: 2500
Container: Tape & Reel (TR)
Limited Supply - Call
    BQ2057PDGKRG4
    DISTI # N/A
    Battery Management Li-Ion LDO Linear Charge Management IC0
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      Availability
      Stock:
      Available
      On Order:
      5000
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