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Overview

Description

This is a USB-certified single-port power bank reference design. It can connect 2 to 4 cells (default is 3 cells) in series and has a battery monitor function on this board. When combined with a lithium-ion battery, this reference can realize a power bank.

The USB Type-C® port is Dual Role Power (DRP), supporting both sink mode to charge the battery and source mode to support programmable power supply (PPS). The standard firmware provided is designed to work with 2 cells and 4 cells, other than the default 3 cells, by changing the board settings.

USB certification: 
TID: 1090007, RTK-251-1PowerBank3, 100W(Sink)/45W(Source)
TID: 1090008, RTK-251-1PowerBank3, 100W(Sink)/15W PPS(Source)

For firmware customization, the firmware generation support tool (PDC image generator, PDC-IMGGEN) is provided. This is a GUI tool that can change the parameters of USB PD protocols.

Features

  • USB Power Delivery and USB-Type-C
    • One USB-Type-C port
    • Power Role: Dual Role (Supports Try.SRC mode)
      • Power Source voltage (without PPS): 5V, 9V, 12V, 15V, 20V, and up to two additional voltages
      • Power Source voltage (with PPS): 5V and 5VProg
      • Power Sink: 5V to 20V (supports variable input)
    • Supports USB-Type-C® Authentication Responder feature (RTK0EUG011D06010BJ only)
    • Supports USB Power Delivery Firmware Update feature (PDFU) (RTK0EUG011D06010BJ only)
  • Battery Charger
    • Battery type: Li-ion battery
    • Number of cells: 2, 3, or 4 series cells (Normal function: Default setting = 3 series cells)
    • Trickle Charging
  • 5 LED indicators
    • USB-Type-C port status indicator (1 LED)
    • Battery remaining capacity indicator (4 LEDs)
  • Protections
    • Over Temperature Protection (USB-Type-C Receptacle)
    • Overvoltage Protection (VBUS voltage)
    • Overcurrent Protection (VBUS current)

Applications

Documentation

Type Title Date
Application Note Log in to Download PDF 1008 KB
1 item

Design & Development

Software & Tools

Software Downloads

Type Title Date
Library Log in to Download ZIP 3.70 MB Function: Communication Interface
Library Log in to Download ZIP 243 KB
2 items

Models

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

Diagram of ECAD Models

Product Options

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