RAK19014 WisBlock Battery USB Power Slot Module Datasheet
Overview
Description
The RAK19014 WisBlock Battery USB Power Slot Module is a modular power board comprising a battery connector (no charging circuitry onboard) and a USB Type-C connector used for reprogramming the WisBlock Core. It is designed for use with the WisBlock Base Board with Power Slot via the 40-pin WisBlock connector.
Optimally designed to support very low-power applications, the RAK19014 features only a USB connector, battery connector, and a 3.3 V switching regulator in the circuit, eliminating unnecessary components that contribute to extra current consumption.
Features
- Designed for battery-only powered applications.
- Supports reprogramming of the WisBlock Core via USB connector.
- High-efficiency switching regulator.
- Optimized for low-power devices.
- Module size: 30 mm x 20 mm
Specifications
Overview
The RAK19014 module can be mounted on the power slot of the WisBlock Base board. Figure 1 shows the mounting mechanism of the RAK19014 on a WisBlock Base module, such as the RAK19010.
Figure 1: RAK19014 mounting mechanism on a WisBlock Base moduleHardware
The hardware specification is categorized into six parts. It discusses the interfacing, pinouts, and their corresponding functions and diagrams of the module. It also covers the electrical, environmental, and mechanical characteristics, including tabular data of the functionalities and standard values of the RAK19014 WisBlock Battery Power Slot Module.
Interfaces
The RAK19014 WisBlock Battery Power Slot Module provides the following interfaces:
- Two-pin battery interface
- Two LEDs
- One reset button
- One USB connector
Figure 1: USB, battery, and reset
Figure 1: WisBlock 40-pin board-to-board connectorBattery Connector
Figure 4 shows the battery connector V+(VBAT) and V-(GND).
Figure 1: Battery polarityThe voltage of the battery must not exceed 4.3 V.
LEDs
Two LEDs are used to indicate the operating status. Their functions are:
- 🟢 Green LED - Connected to the MCU module, controlled by MCU defined by the user.
- 🔵 Blue LED - Connected to the MCU module, controlled by MCU defined by the user.
RESET Push Button
The Reset Push Button is shown in Figure 2 and is connected to the MCU module. When pushed, it resets the MCU.
Pin Definition
The RAK19014 Battery Power Slot Module has a 40-pin WisConnector compatible with the WisBlock Power Slot. The connector's pin order and pinout definition are shown in Figure 5.
VBAT, 3V3, RESET, LED1, LED2, and GND are connected to the WisBlock IO connector.
Figure 1: RAK19014 pinout diagramElectrical Characteristics
Absolute Maximum Ratings
The absolute maximum ratings of the device are shown in the table below. Stress ratings are for the functional operation of the device.
- If the stress rating exceeds the listed value, it may cause permanent damage to the device.
- Exposure to maximum rated conditions may affect device reliability.
| Ratings | Maximum Value | Unit |
|---|---|---|
| Battery voltage (VBAT) | –0.3 to 4.3 | V |
| IOs of WisConnector | –0.3 to VDD+0.3 | V |
Mechanical Characteristic
Board Dimensions
The mechanical dimensions of the RAK19014 module are shown in Figure 6 below.
Figure 1: RAK19014 mechanical dimensionsWisConnector PCB Layout
Figure 1: WisConnector PCB footprint and recommendationsEnvironmental Characteristics
The table below lists the operation and storage temperature requirements of RAK19014:
| Parameter | Minimum | Typical | Maximum |
|---|---|---|---|
| Operational temperature range | –35º C | +25º C | +75º C |
| Extended temperature range | –40º C | +25º C | +80º C |
| Storage temperature range | –40º C | +25º C | +80º C |
Schematic Diagram
Figure 8 shows the schematic of the RAK19014 power slot module.
Figure 1: RAK19014 schematics
