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Description
Product information "Adafruit Universal USB / DC / Solar Lithium Ion/Polymer Charger"
Although we designed the device with solar panels in mind, it's also great as a simple USB or DC charger - we like that you can use 5V or 9V chargers without worry, and the high charge rate is ideal for charging large batteries quickly!
Compared to our previous, MCP73871-based charger, this universal charger has some nice improvements:
- USB type C connection for modern computers and chargers
- Charging current up to 1.5A
- Up to 10V input voltage, 28V protected
- Load output is regulated to never exceed 4.4V, making it safe for 3.3V regulators or 5V boost converters
- No stabilising capacitor required (although you can add one if you want!)
- Equal load sharing so DC/USB/Solar takes priority over battery power when available to avoid overloading the battery
- Power Good LED indicates that the charger is working
- Less expensive
- The maximum charging current is 1.5A instead of 1.8A
- There is no 'Done' LED - when the CHG LED goes out, you know charging is complete
The bq24074 powering this design is great for solar charging and automatically draws the most current possible from the panel in any light condition. Even though it is not a "true" MPPT (Max Power Point Tracker), it has nearly identical performance without the added cost of a buck converter. Our detailed instructions for this charger include a design document that explains how everything works.
For use with Adafruit Lipoly/LiIon batteries only! Other batteries may have a different voltage, chemistry, polarity or pinout.
Comes with an assembled charging board, and a few headers. Does not come with a Lipoly battery or solar panel.
Features:
- 3.7V/4.2V lithium-ion or lithium-polymer battery charger
- Charging with 5-10V DC, USB or 6-10V solar panel, can have both USB and DC connected at the same time, higher voltage source is used.
- Automatic charge current tracking for highly efficient utilisation of any watt solar panel
- Use any 6-10V solar panel
- Two coloured indicator LEDs - Power good and Charging
- Set for 1000mA maximum charge rate, can be set to 500mA or 1.5A by soldering on a jumper
- Always draws the maximum possible current from a solar cell - up to the maximum charging rate!
- Smart load sharing automatically utilises input power when available to save the battery from constant charging/discharging, up to 1.5A current draw. The load output is regulated to no more than 4.4V
- Optional batterytemperature monitoring by soldering in a 10K NTC thermistor (not included) - recommended for outdoor projects where the battery can get hot (50°C) or cold (0°C).
Properties
| Zolltarifnummer: | 85423111 |
|---|---|
| Brand: | Adafruit |
| Country of Origin: | USA |
| EAN: | 4060137066528 |
| Gross Weight (kg): | 0.011 |
| Manufacturer ID: | 4755 |
| Product ID: | ADA4755 |
Manufacturer
Adafruit
Adafruit: The expert for open source hardware
For more than ten years, programmers and tinkerers have benefited from the expertise of the Adafruit brand. Whether for beginners or proven experts, Adafruit has the right hardware components ready for your next IoT project.
Light comes into the dark with Adafruit NeoPixel
One extremely popular product line from the company's broad portfolio is Adafruit NeoPixel. These nifty LED components come in a wide variety of designs and color temperatures. NeoPixel modules are available, for example, in the form of a practical stick with five intelligent LEDs in red, green and blue (RGB) or in white (W), as a shield with 40 eye-saving RGBW LEDs in which all pixels are individually addressable, and as a jewel with seven RGBW LEDs that can be controlled with 8-bit PWM per channel.
Especially popular is the Adafruit NeoPixel Ring with 16 ultra-bright, intelligent RGB LEDs including integrated drivers, which you only need a single microcontroller to control. The trick is that the Adafruit NeoPixel rings form a chain, so to speak: You couple the output pin of one with the input pin of the other.
With the Adafruit NeoPixel products you can realize a wide variety of projects - there are virtually no limits to your creativity. With the help of an Arduino, a jumper cable and the appropriate software, you can control a NeoPixel ring individually and light up the small LEDs as you wish - either individually or in a specific combination. This way, you can also create your own Vu meter with the versatile LED components. Practical: To make programming Adafruit NeoPixel easier, Adafruit provides an Arduino library as well as a Python library.
Adafruit Feather Boards: Powerful hardware in a compact format
With Adafruit Feather, the hardware specialist from the States also has various powerful development boards in its range, which are essentially equivalent to an Arduino in terms of function. All of these boards are equipped with similar features; among other things, the pin assignment is the same and there are also many parallels when it comes to the microcontrollers and the battery charging properties. In addition, you can also find Feather boards with special devices like Bluetooth, Wi-Fi and cellular network connectivity as well as boards with microSD slot in Adafruit's product range. The name "Feather" is no coincidence: The boards are also characterized by being particularly compact and, above all, lightweight.
The range of top-class product highlights is wide: The STM32F405 Feather, for example, is the fastest CircuitPython board from Adafruit with an outstanding 168 MHz and meets the highest demands. It is equipped with a STEMMA QT / Qwiic port at the end, which makes it easy to connect to I2C sensors. The Adafruit Feather nRF52840 Express, on the other hand, shines with Bluetooth Low Energy and can also be used with CircuitPython thanks to native USB support.
Another important part of Adafruit's portfolio are the FeatherWings. With these expansion modules, you can also include components such as a display or a motor driver in your IoT project. The FeatherWing Proto is a proven classic in Adafruit's portfolio. This is ideally suited as a prototyping add-on for all Feather boards. The Adafruit FeatherWing Wing Tripler Mini Kit, on the other hand, is ideal if you want to connect a Feather to two other FeatherWings at the same time.
With the Adafruit MIDI FeatherWing Kit you get a music capable FeatherWing, thanks to which you can equip your Feather with MIDI input and output jacks. And with the Adafruit FeatherWing OLED you can easily add a small OLED display to your Feather board - no soldering required.
Adafruit: What's behind the brand
As an expert in open-source hardware, Adafruit has long since established itself in the electronics industry. The company was founded in 2005 by Limor Fried. At the time, the talented and innovative electrical engineer was still a student at the renowned Massachusetts Institute of Technology (MIT). To this day, Fried is CEO of the electronics giant, which is now headquartered in New York. The company's name also goes back to its founder: Fried was once known on the World Wide Web by the nickname "Ladyada" - a tribute to the famous IT pioneer Ada Lovelace.
Adafruit says it is committed to getting more people excited about technology and science - and thanks to its first-class products, the hardware expert from the USA is sure to succeed!
Manufacturer and safety information
Adafruit Industries, LLC
168 39th Street 1905CC
US 11232 Brooklyn, New York
https://www.adafruit.com
support@adafruit.com
WEEE number: 20453810
Person responsible for the EU
Sertronics GmbH
Am Studio 20d
DE 12489 Berlin
https://www.berrybase.de
info@berrybase.de
Safety instructions
- Always install and operate sensors and modules in accordance with the manufacturer's instructions.
- Always switch off the power supply before installation or maintenance.
- Avoid direct contact with electrical connections to prevent electric shocks.
- Only use in dry and suitable environments to avoid short circuits or malfunctions.
- Check the device for damage or defects before use.
- Do not operate above the specified voltage and current.
- In the event of malfunctions, disconnect the appliance from the power supply immediately.
- Dispose of in accordance with local electrical and electronic waste regulations.
- Do not dispose of in normal household waste as it may contain hazardous substances.
- Keep children away from the product to prevent misuse or injury.
Reviews 1
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1 review
12 May 2022 00:00
macht genau das was es soll!...
macht genau das was es soll!
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