BQ2057PDGKRG4

Mfr. #:: BQ2057PDGKRG4
描述:: Battery Management Li-Ion LDO Linear Charge Management IC
生命週期:: 製造商新產品
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更多信息:: BQ2057PDGKRG4 更多信息 BQ2057PDGKRG4 Product Details

產品屬性
屬性值

製造商：: 德州儀器

產品分類：: 電池管理

產品：: 收費管理

電池類型：: 鋰離子、鋰聚合物

輸出電壓：: 4.1 V

輸出電流：: 2000 mA

工作電源電壓：: 18 V

最低工作溫度：: - 20 C

最高工作溫度：: + 70 C

包裝/案例：: VSSOP-8

打包：: 捲軸

類型：: 充電控制器

品牌：: 德州儀器

安裝方式：: 貼片/貼片

產品類別：: 電池管理

出廠包裝數量：: 1

子類別：: PMIC - 電源管理 IC

單位重量：: 0.004938 oz

Tags: BQ2057PD, BQ2057P, 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: [email protected]

Step1:
Vacuum Packaging with PL

Step2:
Anti-Static Bag

Step3:
Packaging Boxes

BQ2057PDGKRG4 描述

***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.

Market price

型號	描述	庫存	價格
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 IC	0

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