TP4057X

2022-09-24 20:55:02

TP4057X

TP4057X Tuowei 3ma-600ma lithium battery charging IC

3mA-600mA Linear Li-Ion Battery Charger

describe

TP4057X is a complete single-cell lithium-ion battery charger, with battery reverse polarity protection, compatible with 3mA-600mA charging current. Its constant current/constant voltage linear control, thin TSOT package and low external component count make the TP4057X ideal for portable applications.

TP4057X can work with USB power and adapter power. External sense resistors and blocking diodes are not required due to the use of an internal PMOSFET architecture, coupled with a reverse charge protection circuit. Thermal feedback automatically adjusts the charge current to limit the die temperature during high power operation or high ambient temperature conditions. The full voltage is fixed at 4.2V, while the charge current can be set externally with a resistor. When the battery reaches 4.2V, the charging current drops to 1/10 of the set value, and the TP4057X will automatically terminate the charging.

When the input voltage (AC adapter or USB power supply) is removed, the TP4057X automatically enters a low current state and the battery leakage current is below 2uA. Other features of the TP4057X include a charge current monitor, undervoltage lockout, automatic recharge, and two status pins to indicate end of charge and input voltage access.

Features

Compatible with programmable charging current of 3mA-600mA;

Lithium battery positive and negative polarity reverse protection;

No MOSFETs, sense resistors or blocking diodes required;

·For single-cell lithium-ion battery;

Constant current/constant voltage operation with thermal regulation to maximize charging rate without danger of overheating;

· Single-cell Li-ion battery can be charged directly from the USB port;

4.2V preset charging voltage with an accuracy of ±1%;

The highest input can reach 9V;

· Automatic recharging;

2 open-drain output pins for state of charge;

·C/10 charge termination;

The power supply current in standby mode is 65uA;

2.9V trickle charging device version;

Soft start limits inrush current;

Available in a 6-pin thin TSOT-23 package

Absolute Maximum Ratings

·Input power supply voltage (V CC ): -0.3V～12V

·PROG: -0.3V～V CC +0.3V

BAT: -4.2V～8V

· CHRG: -0.3V～10V

BAT short circuit duration: continuous

·BAT pin current: 700mA

·PROG pin current: 800uA

·Maximum junction temperature: 145℃

·Working environment temperature range: -40℃～85℃

·Storage temperature range: -65℃～125℃

·Pin temperature (soldering time 10 seconds): 260℃

In the fight against the dodgy FCC, Huawei is ready to fight to the end.

Today, Huawei held a press conference at its Shenzhen headquarters, announcing that it officially filed an indictment in the U.S. court, requesting the court to find that the FCC’s decision to prohibit Huawei from participating in federally subsidized funds violated the U.S. Constitution and the Administrative Litigation Law. Song Liuping, Huawei's chief legal officer, said that Huawei submitted multiple rounds of factual basis and objections, but the FCC completely ignored these factual basis and opinions.

The cause of the incident originated from the recent November 22 (US local time), the FCC passed a decision to prohibit operators from using federal subsidy funds, the "Universal Service Fund (USF)" to purchase equipment from Huawei and ZTE. Moreover, the FCC even voted to recommend that all U.S. carriers involving Huawei and ZTE equipment remove and replace the two companies’ equipment from existing networks.

In this regard, Huawei issued a statement on November 23 saying that it firmly opposed the decision, because the FCC determined that Huawei constituted a national security threat without evidence, which not only violated the due process principle of the legislation, but also suspected illegal . Huawei said in a statement that banning carriers from buying Huawei equipment does not really improve the state of cybersecurity in the United States. Without the support of this funding, U.S. operators in many remote areas will not be able to continue to obtain competitive Huawei products and services, the competition in the U.S. telecom equipment market will be weakened, and ordinary consumers will have to pay more for network services. price.

Statement by Song Liuping, Chief Legal Officer of Huawei (Original)

Ladies and gentlemen, good morning, and welcome to today's press conference. This morning, Huawei filed an indictment asking the court to overturn an illegal decision passed by the Federal Communications Commission (FCC).

On Nov. 22, the FCC passed a decision to designate Huawei as a national security threat, a decision that would bar U.S. carriers from using the General Services Fund to buy Huawei equipment. Many users and small businesses in rural America still remain unconnected to mobile networks, a decision that will hurt them. The FCC claimed that Huawei posed a security threat, but FCC Chairman Ajit Pai offered no evidence, a practice the U.S. government has used recently.

"Huawei is a Chinese company." That was the only excuse he could give. He also tried to sow fear of Huawei, using terms such as "backdoor" to sow fear without providing any evidence, and other FCC commissioners have used the same rhetoric.

Hong Kong Xinrui guarantees original imported spot

Xinrui Electronics (Hong Kong) Co., Ltd., a professional component distributor (authorized and non-authorized brands) for 18 years, one-stop terminal manufacturer supporting: (quality assurance and integrity management) is the company's commitment to provide customers with brand original semiconductors, electronic products Component terminal supporting market, focusing on ESD/TVS electrostatic protection diodes, LDO low-power voltage regulators, MOS tubes, battery charging and management power supplies, LEDs, optocouplers, resistors and capacitors, PCB solutions (wireless Bluetooth solutions, One-stop Bluetooth sports solution, speaker, wireless power bank).

Main products: ESD electrostatic diodes, TVS diodes, battery charging and management power supplies, MOS tubes, LDO low-power voltage regulators.

Company: Xinrui Electronics (Hong Kong) Co., Ltd.

Contact: Miss Yao

Mobile: 13725590222

Tel: 0755-83780666/83265111

Fax: 0755-82800889

QQ: 3373563833

Address: 26B, Block B, Huaqiang Plaza, Futian North Road, Futian District, Shenzhen

Company website: www.xrdz-hk.com

Part of the company's stock:

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For more models, please inquire:

Xinrui Electronics (Hong Kong) is a professional supplier of integrated circuits and has many years of sales experience in our bank!

With a large stock of stock, integrity-based, customer first, the quality of products for customers!

Due to the large number of company models, it is impossible to upload them one by one. If you can't find the product you want on the website, please contact the salesperson. Our company can provide electronic components distribution service.

Company: Xinrui Electronics (Hong Kong) Co., Ltd.

Contact: Miss Yao

Mobile: 13725590222

Tel: 0755-83780666/83265111

Fax: 0755-82800889

QQ: 3373563833

Address: 26B, Block B, Huaqiang Plaza, Futian North Road, Futian District, Shenzhen

Company website: www.xrdz-hk.com

Hong Kong Xinrui guarantees original imported spot

According to a new Microsoft patent published by the US Trademark and Patent Office on September 10, it is expected to bring a split camera system to a foldable dual-screen device. In view of the strict requirements of consumers for portraits and zooming, the modules of the camera system have become larger and larger, and the cameras of many mobile phones, including the iPhone, are raised. To this end, in the new patent, Microsoft divided the camera system into two, thus avoiding the bulge problem.

The patent, titled "Device with Segmentation Imaging System," was included in the USPTO Patent Library on September 10, 2019. This patent application refers to a device having two parts, and the first part includes a movable imaging unit and a magnet rigidly fixed to the imaging unit. Microsoft includes an optical unit in the second body section and has a magnet rigidly attached to the optical unit

The patent description reads: "In the first mode, the imaging unit and the optical unit are fixed in a set relative position due to the magnetic interaction between the magnets. In the second mode, the imaging unit is positioned away from the optical unit. .Some or all of the above-mentioned embodiments have the technical effect of utilizing a separate body part that a foldable, sliding or modular device might have."

Microsoft says the split-camera design could make the foldable device thinner in the camera area, and the device still delivers high quality thanks to the combined camera setup.

Hong Kong Xinrui Electronics Co., Ltd., 18 years of professional component distributors (authorized and non-authorized brands), one-stop terminal manufacturer support: (quality assurance and integrity management) is the company's commitment to provide customers with brand original semiconductors, electronic components Terminal supporting market, focusing on ESD/TVS electrostatic protection diodes, LDO low-power voltage regulators, MOS tubes, battery charging and management power supplies, LEDs, optocouplers, resistors and capacitors, PCB solutions (wireless Bluetooth solutions, Bluetooth sports version solution one-stop, speakers, wireless power bank).

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Main products: ESD electrostatic diodes, TVS diodes, battery charging and management power supplies, MOS tubes, LDO low-power voltage regulators.

Company: Hong Kong Xinrui Electronics Co., Ltd.

Contact: Miss Yao

Mobile: 13725590222

Tel: 0755-83780666/83265111

Fax: 0755-82800889

QQ: 3373563833

Address: 26B, Block B, Huaqiang Plaza, Futian North Road, Futian District, Shenzhen

Company website: www.xrdz-hk.com

Hong Kong Xinrui Electronics Co., Ltd. part of the spot:

For more models, please inquire:

Hong Kong Xinrui Electronics Co., Ltd. is a professional supplier of integrated circuits and has many years of sales experience in the bank! With a large stock of stock, integrity-based, customer first, the quality of products for customers!

Company: Hong Kong Xinrui Electronics Co., Ltd.

Contact: Miss Yao

Mobile: 13725590222

Tel: 0755-83780666/83265111

Fax: 0755-82800889

QQ: 3373563833

Address: 26B, Block B, Huaqiang Plaza, Futian North Road, Futian District, Shenzhen

Company website: www.xrdz-hk.com

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Company: Hong Kong Xinrui Electronics Co., Ltd.

Contact: Miss Yao

Mobile: 13725590222

Tel: 0755-83780666/83265111

Fax: 0755-82800889

QQ: 3373563833

Address: 26B, Block B, Huaqiang Plaza, Futian North Road, Futian District, Shenzhen

Company website: www.xrdz-hk.com

TP4057X

TP4057X

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