TP4101

Product Description

TP4100/TP4101 is a complete single-cell lithium-ion battery charge management and discharge protection chip, the first 5V power supply reverse polarity protection, with battery reverse polarity protection, compatible with 3mA-1000mA charging current. Its constant current/constant voltage linear control, thin DFN and TSOT packages and low external component count make it ideal for portable product applications.

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 chip has an adaptive function of power supply voltage and power, and can directly draw power from USB or solar energy. 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 TP4100 will automatically terminate the charging.

The discharge management of TP4100 includes under-voltage protection, over-charge protection, output short-circuit protection, output over-current protection, chip over-temperature protection and delayed self-activation recovery after various protections. Other features include charge current monitor, under-voltage lockout , automatic recharge, and two pins for indicating charge status (TP4101 has one charge indicating status pin). The TP4100 is packaged in an 8-pin DFN3*3 package with a charging current range of 3mA-1000mA. The TP4101 is packaged in a 6-pin TSOT23 with a charging current range of 3mA-600mA.

Features

The first 5V power supply reverse connection protection;

Compatible with programmable charging currents ranging from 3mA to 1000mA;

Lithium battery positive and negative polarity reverse protection;

Trickle-constant current-constant voltage three-stage charging;

·Automatic power supply in charging mode;

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

The highest input can reach 8V;

20% constant current precharge;

·C/10 charge termination;

·The power supply current in charging standby mode is 80uA,

BAT standby current 4uA in discharge mode;

·Battery 2.6V under-voltage protection shutdown, charging self-recovery;

·Overcharge protection, output short circuit protection, output overcurrent protection;

·After protection, self-recovery after 8 seconds;

·Two thin packages are available DFN3*3-8/TSOT23-6.

Absolute Maximum Ratings

·Input power supply voltage (VCC): -5.5V～9V ·PROG: -0.3V～V CC +0.3V

BAT: -4.2V～9V

·CHRG: -0.3V～9V

BAT short circuit duration: continuous

·BAT pin current: 1200mA

·PROG pin current: 1500uA

·Maximum junction temperature: 145℃

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

·Storage temperature range: -65℃～125℃

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

application

·Micro lithium battery equipment

· Wearable, highly integrated lithium battery equipment · Lithium battery portable equipment, etc.

Precautions for TP4100/TP4101 Test Use

1. In order to ensure reliable use in various situations and prevent chip damage caused by spikes and glitches, it is recommended that 10uF ceramic capacitors and 0.1uF ceramic capacitors be used for Vcc and BAT in TP4100/TP4101 applications. All capacitors must be located close to the chip lead. The feet should not be placed too far. In the application of reverse power supply protection environment, it is required to use an application circuit with dissipation resistance and increase the input capacitance.

2. If you need to test the charging current of TP4100/TP4101, the BAT terminal of the chip should be directly connected to the positive pole of the battery, and the ammeter cannot be connected in series. The ammeter can be connected to the Vcc terminal of the chip.

This year is destined to be an extraordinary year. Since 1987, the annual WWDC, which has never fallen, is also the first time in history that offline activities have been cancelled and changed to online live broadcast mode. However, the online live broadcast does not affect people's attention to Apple's "wind vane" WWDC. According to the practice of previous years, Apple's full-platform operating systems will be updated at WWDC, including iOS, MacOS, iPad OS, and more. At the same time, new hardware products such as the Mac Pro and Pro Display XDR introduced last year are also likely.

On the eve of this year's WWDC, it was revealed that Apple will replace the Intel processors on the current Mac computers with its own ARM-based processors, which has become one of the most anticipated hot spots of WWDC 2020. Today, there are still 3 days before the opening of WWDC 2020. Huaqiang Electronic Network has collected and sorted out the relevant news disclosed by major media and industry insiders so far, so that everyone can review the knowledge points before participating in WWDC 2020.

In fact, there were rumors about this news as early as 2018. At that time, a Reddit netizen posted an analysis article, guessing that the first ARM Mac device is expected to be seen within three years, and the desktop and mobile application ecosystems will be opened up. Looking back at this news in 2018, probably not many people would believe it. After all, the country that x86 has made for so many years is not so easy to be broken by ARM.

However, looking at the history of Mac computers, in fact, Apple's use of Intel processors with x86 architecture was only officially announced at WWDC in 2005, just 15 years ago. As early as 1988, Jobs claimed that all computer architectures and all computer systems have a 10-year lifespan, and then Apple has indeed experienced the journey from Motorola to PowerPC to Intel.

Bloomberg also said in a recent report that Apple will release its first ARM-based Mac at WWDC 2020 as soon as possible, using the A14 chip. However, changing system platforms can be a nightmare for developers. Referring to the time schedule of Apple's announcement of switching to the Intel platform in 2005, this year's WWDC is more likely to only announce relevant news and not release hardware, leaving enough time for developers to adapt.

After the smooth iteration of the previous two years, iOS may be different this year. Screen widgets that existed in various concept UI videos years ago may really be here this time.

Some foreign media found from the code of the early leaked version of iOS 14 that iOS 14 will add a "new list view" on the basis of retaining the grid layout of the application. Users can view all the applications on the device in the scrolling list of the page, roughly The effect is similar to the Apple Watch's list view. At the same time, there is also news that iOS14 will add elements of desktop widgets, similar to Android, and widgets can be placed anywhere on the home page at will. Developers can create three different types of icon styles to choose from: classic static icons, dynamic icons that display data and buttons, and full-sized widgets.

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).

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:

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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!

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: 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