Adafruit bq25185 Charging board, USB/DC/Solar, 1-cell Li-Ion/LiPo/LiFePO4, 5-18V IN, 3A OUT, 3.0-4.5V

Product number: ADA6091

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Adafruit bq25185 USB/DC/Solar charging board, 3.3V buck board, 5-18V input, 1A charging current

3,3V

Adafruit Universal USB / DC / Solar Lithium Ion/Polymer Charger

CHF 6.25

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CHF 6.25

Adafruit bq25185 Charging board, USB/DC/Solar, 1-cell Li-Ion/LiPo/LiFePO4, 5-18V IN, 3A OUT, 3.0-4.5V

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Product information "Adafruit bq25185 Charging board, USB/DC/Solar, 1-cell Li-Ion/LiPo/LiFePO4, 5-18V IN, 3A OUT, 3.0-4.5V"

Adafruit bq25185 Charger Board, USB/DC/Solar, 1-cell Li-Ion/LiPo/LiFePO4, 5-18V IN, 3A OUT, 3.0-4.5V
The Adafruit bq25185 Charger Board is a charging and power management module for rechargeable lithium-ion, lithium-polymer and lithium iron phosphate batteries with a nominal voltage of 3.7V. It supports various power sources, including USB, DC inputs and solar modules, and optimises power management through power path management. The module is suitable for portable, solar-powered or energy self-sufficient systems.

Power supply and input voltage
The board accepts an input voltage of 5V to 18V via USB-C or the DC/solar input.
The maximum input current is 1A.
With solar power, the charge controller adjusts the current consumption to keep the panel voltage stable (almost MPPT functionality). For efficient use with solar panels, an input voltage range of 5-7V is recommended.

USB-C connection for direct power supply
DC/solar input for operation with direct current sources or solar modules
Adaptive input voltage regulation for optimised use of solar power

Charging current and charging functionality
The charger supports a configurable charging current of up to 1A with three adjustable levels.

250mA for smaller batteries or sensitive charging conditions
500mA as a compromise between charging time and safety
1A for fast charging of large batteries with a powerful current source

Single-cell batteries with 3.7V or 3.2V are supported.

Power-Path-Management - Simultaneous load and battery supply
This technology enables simultaneous supply of the load and charging of the battery.

With external power source: loads are supplied directly, surplus energy charges the battery
Without external power source: The battery automatically takes over the power supply to the load
Maximum load current output of up to 3A, regardless of the state of charge

This system ensures an uninterrupted power supply even if the power source fluctuates.

Voltage and current regulation

Internal voltage regulation limits the maximum output voltage to 4.5V
Maximum load current of 3A for power-intensive applications
Thermistor connection for monitoring the battery temperature
Protection functions against overcharging, deep discharge and overheating

LED status indicators
Three status LEDs provide information on the current operating status.

Charging indicator shows whether the charging process is active
Error indicator signals errors such as overheating or overcurrent
Power supply indicator shows whether the board is being supplied via an external source

Connections of the Adafruit bq25185 Charger Board
The board has several connection options.

USB-C connection

Direct power supply via standard USB power supply units or power banks
Charges the battery and powers connected devices simultaneously

DC/solar input (JST-PH 2.0mm 2-pin and solder pads)
Two options for connecting to DC or solar power sources.

JST-PH 2.0mm 2-pin connector for quick plug-in connection
Solder pads for durable and stable cable connections

Battery connection (JST-PH 2.0mm 2-pin and solder pads)

Standard connection for single-cell batteries with JST-PH 2.0mm 2-pin connector
Alternative direct solder connection for fixed installations

Use cases of the various connections

USB-C: Standard power supply for development and test purposes.
JST-PH 2.0mm (DC/Solar): Simple plug connection for solar panels or power supply units.
Solder pads: Permanent installation or direct customisation of power sources.
JST-PH 2.0mm (battery): Standard connection for rechargeable single cells.

Features at a glance

Supports USB, DC and solar as power sources
Charging speeds: 250 mA, 500 mA or 1 A
Optimisation for solar power through voltage equalisation
Power path management for efficient power distribution
Internal voltage regulator: Maximum 4.5 V output
Three status LEDs: charging, error, power supply
Thermistor pad for monitoring the battery temperature

Compatibility

1-cell LiPo, Li-Ion and LiFePO4 batteries
Solar panels with 5-7 V output

Technical specifications

Dimensions: 32.0 mm x 26.3 mm x 7.2 mm
Weight: 4 g
Battery output voltage: 3.0-4.5 V
Supported power sources: 5-18 V DC

Other data

Solar friendly with near MPPT functionality
Adjustable battery chemistry and voltage

Scope of delivery

1x Adafruit bq25185 Charger Board

Differences of bq25185 versions

Feature	bq25185 charger board	bq25185 Charger board with 3.3V buck converter
Additional component	No additional regulator	Additional 3.3V buck converter (TPS62569)
Output voltages	4.5V max. regulated	4.5V max. regulated 3.3V regulated output voltage (up to 1A)
Input voltage	5-18V (USB/DC/Solar)	5-18V (USB/DC/Solar)
Load current	Max. 3A from the battery	4.5V output: max. 1A 3.3V output: max. 1A
Power efficiency	Direct voltage regulation to 4.5V (LDO)	Higher efficiency due to switching regulator for 3.3V
LED status indicators	Charging, error, power supply	Charging, error, 3.3V output
Enable pad	No	For switching off the 3.3V converter
Size	32.0 x 26.3 x 7.2 mm, 4g	30.2 x 19.0 x 10.0 mm, 3.6g
Applications	General battery management Power supply for loads with variable voltage	Ideal for 3.3V systems (microcontrollers, sensors) More efficiency thanks to switching regulators

Zolltarifnummer:	85423190
Brand:	Adafruit
Country of Origin:	China
Gross Weight (kg):	0.150
Manufacturer ID:	6091
Product ID:	ADA6091

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 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.