1. Product Overview
Supercapacitor UPS Module, 5V Output, 5V-24V Input.
This supercapacitor-based uninterruptible power supply (UPS) module is equipped with two supercapacitors, offering long service life and strong discharge capability. The input supports a wide voltage range of 5V to 24V, with multiple input interfaces including a USB Type-C connector, DC barrel jack, and 2-pin screw terminal, making it suitable for various power supply environments.
The output is regulated at 5V, and multiple output interfaces are provided, including a USB Type-A port, 2-pin screw terminal, and 2-pin header, allowing simultaneous power supply for different peripherals. Several onboard status indicators are available, including an input power indicator, output indicator, and supercapacitor voltage indicators.
When an external power supply is connected and the supercapacitors are fully charged, the board can provide a peak output of 5V/5A. When the external power supply is disconnected, the fully charged supercapacitors can independently provide a stable 5V/3A output.
In the event of external power loss, the module can provide approximately 15 to 110 seconds of backup time, depending on the supercapacitor charge level and load current, giving the system enough buffer time for data saving and safe shutdown.
2. Features
• Wide input voltage range: supports 5V-24V input.
• Long cycle life and strong discharge capability with two supercapacitors.
• Peak output up to 5V/5A when external power is connected and the capacitors are fully charged.
• Backup duration of approximately 15-110 seconds during power failure.
• Onboard protections including input reverse-polarity protection and output short-circuit protection.
• Rich status indication with input power LED, output LED, and supercapacitor voltage LEDs.
• Multiple input and output connection options for flexible system integration.
• Compact board size of 85 mm x 56 mm with six M2.5 mounting holes.
3. Specifications
Parameter | Description |
Model | SCap UPS Board |
Input Voltage | 5V-24V |
Output Voltage | 5V |
Supercapacitor Bank | 25F (two 2.7V / 50F supercapacitors connected in series) |
Supercapacitor Charging Current | Up to 800mA |
External Power Detection Logic Level | 3.3V |
Discharge Current | 5V/5A output available when external power is connected and the supercapacitors are fully charged |
Standalone Supercapacitor Output | 5V/3A output available when the supercapacitors are fully charged |
Operating Temperature | -40°C to 65°C |
Mounting Hole Diameter | 2.5 mm |
Dimensions | 85 mm x 56 mm |
4. Module Resources
1. Type-C connector: used for connecting a power adapter as the input.
2. 3.5 mm 2-pin screw terminal: input terminal, supports 5V-24V input.
3. DC-044 connector: external power input through a DC plug, supports 5V-24V input.
4. Power input indicator LED: lights up when input power is present; turns off when power is disconnected.
5. Supercapacitors.
6. Supercapacitor voltage status LEDs: provide an approximate indication of the current supercapacitor voltage.
7. Output indicator LED.
8. 2-pin 2.54 mm pitch capacitor measurement header: used to measure the voltage of an individual supercapacitor.
9. 2-pin 2.54 mm pitch input detection header: outputs 3.3V when external power is present and 0V when power is lost.
10. 3.5 mm 2-pin screw terminal: 5V output.
11. 2-pin 2.54 mm pitch header: 5V output.
12. USB Type-A connector: 5V output.
13. M2.5 mounting holes.
Precautions for Use
1. This supercapacitor UPS is designed to provide short-term backup power for devices such as Raspberry Pi during a power outage, allowing data saving and reducing the risk of storage damage caused by sudden power loss during read/write operations. However, this UPS does not include power path management, so it cannot automatically restart the system after external power is restored.
2. On Raspberry Pi, the user application should detect the loss of external power, switch to supercapacitor-only power mode, complete data saving, and then perform a software shutdown.
3. To wake up Raspberry Pi again after software shutdown, either perform a reset or wait until the UPS is fully discharged and enters complete power-off mode; the system will then start automatically at the next power-on.
4. Store the board in a dry environment at normal room temperature.
5. Do not use the module in high-temperature or extremely cold environments, and avoid strong impact or contact with sharp objects.
Wiki
https://seengreat.com/wiki/208/
Package Contents
1. SCap UPS Board Module X1
2. Brass Standoff Pack X1