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BQ2057

BQ2057
Mfr. #:
BQ2057
Manufacturer:
Texas Instruments
Description:
Lifecycle:
New from this manufacturer.
Datasheet:
BQ2057 Datasheet
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union
ECAD Model:
Product Attribute
Attribute Value
Tags
BQ2057, BQ205, BQ20, BQ2
Service Guarantees

We guarantee 100% customer satisfaction.

Quality Guarantees

We provide 90-360 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.
Our experienced sales team and tech support team back our services to satisfy all our customers.

we buy and manage excess electronic components, including excess inventory identified for disposal.
Email us if you have excess stock to sell.

Email: info@omo-ic.com

Step1: Vacuum Packaging with PL
Step1:
Vacuum Packaging with PL
Step2: Anti-Static Bag
Step2:
Anti-Static Bag
Step3: Packaging Boxes
Step3:
Packaging Boxes
***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 # Mfg. Description Stock Price
BQ2057CSNTR
DISTI # V39:1801_07230946		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.2V 8-Pin SOIC T/R
RoHS: Compliant		2500
  • 2500:$0.8018
BQ2057CDGKR
DISTI # V39:1801_07230938		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.2V 8-Pin VSSOP T/R
RoHS: Compliant		2500
  • 12500:$0.7429
  • 5000:$0.7724
  • 2500:$0.8018
BQ2057CTS
DISTI # V99:2348_07230950		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.2V 8-Pin TSSOP Tube
RoHS: Compliant		449
  • 500:$1.2091
  • 100:$1.3958
  • 10:$1.7609
  • 1:$2.2905
BQ2057WTSTR
DISTI # V72:2272_07234566		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.4V 8-Pin TSSOP T/R
RoHS: Compliant		286
  • 250:$1.1903
  • 100:$1.3227
  • 25:$1.6093
  • 10:$1.6401
  • 1:$2.1076
BQ2057DGK
DISTI # V39:1801_07230957		Texas InstrumentsLinear Battery Charger Li-Ion/Li-Pol 2000mA 4.1V 8-Pin VSSOP Tube0
    BQ2057TSN
    DISTI # V99:2348_07234554    		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.2V 8-Pin SOIC Tube
    RoHS: Compliant    		0
      BQ2057TSN
      DISTI # V39:1801_07234554      		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.2V 8-Pin SOIC Tube
      RoHS: Compliant      		0
        BQ2057CTS
        DISTI # V39:1801_07230950        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.2V 8-Pin TSSOP Tube
        RoHS: Compliant        		0
          BQ2057WTS
          DISTI # V36:1790_07234564          		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.4V 8-Pin TSSOP Tube
          RoHS: Compliant          		0
            BQ2057WTS
            DISTI # V39:1801_07234564            		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.4V 8-Pin TSSOP Tube
            RoHS: Compliant            		0
              BQ2057CSNTR
              DISTI # V72:2272_07230946              		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.2V 8-Pin SOIC T/R
              RoHS: Compliant              		0
                BQ2057CDGKR
                DISTI # V72:2272_07230938                		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.2V 8-Pin VSSOP T/R
                RoHS: Compliant                		0
                  BQ2057SN
                  DISTI # V39:1801_07234550                  		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.1V 8-Pin SOIC Tube
                  RoHS: Compliant                  		0
                    BQ2057WTSTR
                    DISTI # V39:1801_07234566                    		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.4V 8-Pin TSSOP T/R
                    RoHS: Compliant                    		0
                      BQ2057TS
                      DISTI # V36:1790_07234552                      		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.2V 8-Pin TSSOP Tube
                      RoHS: Compliant                      		0
                        BQ2057WSNTR
                        DISTI # 296-41202-1-ND                        		Texas InstrumentsIC LI-ION LDO CHARGE MGMT 8SOIC
                        RoHS: Compliant
                        Min Qty: 1
                        Container: Cut Tape (CT)                        		9796In Stock
                        • 1000:$1.0156
                        • 500:$1.2257
                        • 100:$1.4919
                        • 10:$1.8560
                        • 1:$2.0700
                        BQ2057WSNTR
                        DISTI # 296-41202-6-ND                        		Texas InstrumentsIC LI-ION LDO CHARGE MGMT 8SOIC
                        RoHS: Compliant
                        Min Qty: 1
                        Container: Digi-Reel®                        		9796In Stock
                        • 1000:$1.0156
                        • 500:$1.2257
                        • 100:$1.4919
                        • 10:$1.8560
                        • 1:$2.0700
                        BQ2057WSNTR
                        DISTI # 296-41202-2-ND                        		Texas InstrumentsIC LI-ION LDO CHRG MGMT 8-SOIC
                        RoHS: Compliant
                        Min Qty: 2500
                        Container: Tape & Reel (TR)                        		7500In Stock
                        • 5000:$0.8840
                        • 2500:$0.9180
                        BQ2057CSNTR
                        DISTI # 296-41201-1-ND                        		Texas InstrumentsIC LI-ION LDO CHARGE MGMT 8SOIC
                        RoHS: Compliant
                        Min Qty: 1
                        Container: Cut Tape (CT)                        		6891In Stock
                        • 1000:$0.8886
                        • 500:$1.0725
                        • 100:$1.3054
                        • 10:$1.6240
                        • 1:$1.8100
                        BQ2057CSNTR
                        DISTI # 296-41201-6-ND                        		Texas InstrumentsIC LI-ION LDO CHARGE MGMT 8SOIC
                        RoHS: Compliant
                        Min Qty: 1
                        Container: Digi-Reel®                        		6891In Stock
                        • 1000:$0.8886
                        • 500:$1.0725
                        • 100:$1.3054
                        • 10:$1.6240
                        • 1:$1.8100
                        BQ2057WTSTR
                        DISTI # 296-25917-1-ND                        		Texas InstrumentsIC LI-ION LDO CHRG MGMT 8-TSSOP
                        RoHS: Compliant
                        Min Qty: 1
                        Container: Cut Tape (CT)                        		6723In Stock
                        • 1000:$1.0156
                        • 500:$1.2257
                        • 100:$1.4919
                        • 10:$1.8560
                        • 1:$2.0700
                        BQ2057WTSTR
                        DISTI # 296-25917-6-ND                        		Texas InstrumentsIC LI-ION LDO CHRG MGMT 8-TSSOP
                        RoHS: Compliant
                        Min Qty: 1
                        Container: Digi-Reel®                        		6723In Stock
                        • 1000:$1.0156
                        • 500:$1.2257
                        • 100:$1.4919
                        • 10:$1.8560
                        • 1:$2.0700
                        BQ2057WTSTR
                        DISTI # 296-25917-2-ND                        		Texas InstrumentsIC LI-ION LDO CHRG MGMT 8-TSSOP
                        RoHS: Compliant
                        Min Qty: 2000
                        Container: Tape & Reel (TR)                        		6000In Stock
                        • 10000:$0.8500
                        • 6000:$0.8840
                        • 2000:$0.9180
                        BQ2057CSNTR
                        DISTI # 296-41201-2-ND                        		Texas InstrumentsIC LI-ION LDO CHRG MGMT 8-SOIC
                        RoHS: Compliant
                        Min Qty: 2500
                        Container: Tape & Reel (TR)                        		5000In Stock
                        • 12500:$0.7438
                        • 5000:$0.7735
                        • 2500:$0.8033
                        BQ2057CDGKR
                        DISTI # 296-11991-1-ND                        		Texas InstrumentsIC LI-ION LDO CHRG MGMT 8VSSOP
                        RoHS: Compliant
                        Min Qty: 1
                        Container: Cut Tape (CT)                        		4888In Stock
                        • 1000:$0.8886
                        • 500:$1.0725
                        • 100:$1.3054
                        • 10:$1.6240
                        • 1:$1.8100
                        BQ2057CDGKR
                        DISTI # 296-11991-6-ND                        		Texas InstrumentsIC LI-ION LDO CHRG MGMT 8VSSOP
                        RoHS: Compliant
                        Min Qty: 1
                        Container: Digi-Reel®                        		4888In Stock
                        • 1000:$0.8886
                        • 500:$1.0725
                        • 100:$1.3054
                        • 10:$1.6240
                        • 1:$1.8100
                        BQ2057WTS
                        DISTI # 296-9365-5-ND                        		Texas InstrumentsIC LITH-ION LDO CHRG MGMT 8TSSOP
                        RoHS: Compliant
                        Min Qty: 1
                        Container: Tube                        		3152In Stock
                        • 5100:$1.0621
                        • 2550:$1.1030
                        • 1050:$1.1846
                        • 600:$1.4298
                        • 150:$1.7402
                        • 25:$2.0424
                        • 10:$2.1650
                        • 1:$2.4100
                        BQ2057CDGKR
                        DISTI # 296-11991-2-ND                        		Texas InstrumentsIC LI-ION LDO CHRG MGMT 8VSSOP
                        RoHS: Compliant
                        Min Qty: 2500
                        Container: Tape & Reel (TR)                        		2500In Stock
                        • 12500:$0.7438
                        • 5000:$0.7735
                        • 2500:$0.8033
                        BQ2057WSN
                        DISTI # 296-9364-5-ND                        		Texas InstrumentsIC LITH-ION LDO CHRG MGMT 8-SOIC
                        RoHS: Compliant
                        Min Qty: 1
                        Container: Tube                        		2270In Stock
                        • 5025:$1.0621
                        • 2550:$1.1030
                        • 1050:$1.1846
                        • 525:$1.4298
                        • 150:$1.7402
                        • 75:$2.0425
                        • 10:$2.1650
                        • 1:$2.4100
                        BQ2057CTSTR
                        DISTI # 296-25916-2-ND                        		Texas InstrumentsIC LI-ION LDO CHRG MGMT 8-TSSOP
                        RoHS: Compliant
                        Min Qty: 2000
                        Container: Tape & Reel (TR)                        		Temporarily Out of Stock
                        • 10000:$0.7438
                        • 6000:$0.7735
                        • 2000:$0.8033
                        BQ2057CSNTR
                        DISTI # 32413483                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.2V 8-Pin SOIC T/R
                        RoHS: Compliant                        		10000
                        • 12500:$0.7532
                        • 5000:$0.7658
                        • 2500:$0.7952
                        BQ2057CDGKR
                        DISTI # 31709000                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.2V 8-Pin VSSOP T/R
                        RoHS: Compliant                        		10000
                        • 12500:$0.7658
                        • 5000:$0.7952
                        • 2500:$0.8247
                        BQ2057WTSTR
                        DISTI # 31747264                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.4V 8-Pin TSSOP T/R
                        RoHS: Compliant                        		10000
                        • 10000:$0.8608
                        • 6000:$0.8752
                        • 2000:$0.9088
                        BQ2057CDGK
                        DISTI # 31709601                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.2V 8-Pin VSSOP Tube
                        RoHS: Compliant                        		9600
                        • 1200:$1.2375
                        BQ2057TS
                        DISTI # 31710558                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.2V 8-Pin TSSOP Tube
                        RoHS: Compliant                        		9000
                        • 1500:$1.0890
                        BQ2057TSN
                        DISTI # 31710010                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.2V 8-Pin SOIC Tube
                        RoHS: Compliant                        		9000
                        • 1500:$1.2375
                        BQ2057WSN
                        DISTI # 31709995                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.4V 8-Pin SOIC Tube
                        RoHS: Compliant                        		9000
                        • 1875:$1.0344
                        • 1500:$1.0504
                        BQ2057CSNTR
                        DISTI # 32874327                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.2V 8-Pin SOIC T/R
                        RoHS: Compliant                        		2500
                        • 2500:$0.8619
                        BQ2057CDGKR
                        DISTI # 33709642                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.2V 8-Pin VSSOP T/R
                        RoHS: Compliant                        		2500
                        • 2500:$0.7275
                        BQ2057SN
                        DISTI # 31710943                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.1V 8-Pin SOIC Tube
                        RoHS: Compliant                        		1500
                        • 1500:$0.8972
                        BQ2057DGK
                        DISTI # 32375806                        		Texas InstrumentsLinear Battery Charger Li-Ion/Li-Pol 2000mA 4.1V 8-Pin VSSOP Tube1200
                        • 1200:$1.2969
                        BQ2057WTS
                        DISTI # 31710039                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.4V 8-Pin TSSOP Tube
                        RoHS: Compliant                        		600
                        • 600:$1.4157
                        BQ2057CTS
                        DISTI # 25862275                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.2V 8-Pin TSSOP Tube
                        RoHS: Compliant                        		449
                        • 500:$1.2345
                        • 100:$1.3947
                        • 10:$1.6893
                        • 7:$2.1227
                        BQ2057WSN
                        DISTI # 32420832                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.4V 8-Pin SOIC Tube
                        RoHS: Compliant                        		370
                        • 500:$1.3856
                        • 100:$1.6320
                        • 10:$2.0252
                        • 7:$2.6152
                        BQ2057WTSTR
                        DISTI # 25767936                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.4V 8-Pin TSSOP T/R
                        RoHS: Compliant                        		286
                        • 250:$1.2152
                        • 100:$1.3502
                        • 25:$1.5938
                        • 10:$1.6195
                        • 8:$2.0235
                        BQ2057WSN
                        DISTI # BQ2057WSN                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.4V 8-Pin SOIC Tube - Rail/Tube (Alt: BQ2057WSN)
                        RoHS: Compliant
                        Min Qty: 375
                        Container: Tube                        		Americas - 89
                        • 3750:$1.0086
                        • 1875:$1.0342
                        • 1125:$1.0610
                        • 750:$1.0893
                        • 375:$1.1192
                        BQ2057SN
                        DISTI # BQ2057SN                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.1V 8-Pin SOIC Tube - Rail/Tube (Alt: BQ2057SN)
                        RoHS: Compliant
                        Min Qty: 450
                        Container: Tube                        		Americas - 0
                        • 4500:$0.7839
                        • 2250:$0.8059
                        • 1350:$0.8339
                        • 900:$0.8629
                        • 450:$0.9069
                        BQ2057TS
                        DISTI # BQ2057TS                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 8.2V 8-Pin TSSOP Tube - Rail/Tube (Alt: BQ2057TS)
                        RoHS: Compliant
                        Min Qty: 450
                        Container: Tube                        		Americas - 0
                        • 4500:$0.7839
                        • 2250:$0.8059
                        • 1350:$0.8339
                        • 900:$0.8629
                        • 450:$0.9069
                        BQ2057CSN
                        DISTI # BQ2057CSN                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.2V 8-Pin SOIC Tube - Rail/Tube (Alt: BQ2057CSN)
                        RoHS: Compliant
                        Min Qty: 375
                        Container: Tube                        		Americas - 0
                        • 3750:$0.8949
                        • 1875:$0.9209
                        • 1125:$0.9529
                        • 750:$0.9859
                        • 375:$1.0359
                        BQ2057CTS
                        DISTI # BQ2057CTS                        		Texas InstrumentsLinear Charge Management Li-Ion/Li-Pol 2000mA 4.2V 8-Pin TSSOP Tube - Rail/Tube (Alt: BQ2057CTS)
                        RoHS: Compliant
                        Min Qty: 450
                        Container: Tube                        		Americas - 0
                        • 4500:$0.8949
                        • 2250:$0.9209
                        • 1350:$0.9529
                        • 900:$0.9859
                        • 450:$1.0359
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                        Availability
                        Stock:
                        Available
                        On Order:
                        1500
                        Enter Quantity:
                        Current price of BQ2057 is for reference only, if you want to get best price, please submit a inquiry or direct email to our sales team sales@omo-ic.com
                        Reference price (USD)
                        Quantity
                        Unit Price
                        Ext. Price
                        1
                        $0.00
                        $0.00
                        10
                        $0.00
                        $0.00
                        100
                        $0.00
                        $0.00
                        500
                        $0.00
                        $0.00
                        1000
                        $0.00
                        $0.00
                        Due to semiconductor in short supply from 2021,below price is the Normal price before 2021.please send inquire to confirm.
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