RAK19013 WisBlock LiPo Solar Power Slot Module Datasheet

Overview

Description

RAK19013 WisBlock LiPo Solar module is a power board that comprises a battery connector, a solar panel connector, a reset push button, a charger implemented that can recharge a plugged-in battery, a charging LED to show the status of charging, and a power connector which can connect with WisBlock Base board.

This board can be connected with the WisBlock Base board like RAK19010 through the power slot.

Features

• Flexible building block design, which enables modular function realization and expansion
• Low power battery power supply
• Supports lithium battery charging
• Supports solar charging
• Fulfills industrial-level design
• Module size: 30 X 20 mm

Specifications

Overview

Board Overview

Figure 4504: RAK19013 WisBlock Power Module top (left) and bottom (right) view

Mounting

The RAK19013 module can be mounted on the Power slot of the WisBlock Base board. Figure 2 shows the mounting mechanism of the RAK19013 on a WisBlock Base module, such as the RAK19010.

Figure 4505: RAK19013 mounting mechanism on a WisBlock Base module

Hardware

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, mechanical, and environmental characteristics that include the tabular data of the functionalities and standard values of the RAK19013 WisBlock LiPo Solar Power Slot Module.

Interfaces

RAK19013 WisBlock LiPo Solar Power Slot Module provides the following interfaces, headers, a button, and WisConnectors:

• 1 WisBlock Power module
• 2 pin battery interface
• 2 pin solar interface
• 3 LEDs
• 1 Reset button

NOTE

RAK19013 doesn't have a USB connector. So when RAK19013 and RAK19010 are used together, it is not possible to program the core (unless you use Jlink). If you want to program the core, you need the RAK5804. Then you can supply over RAK19013 and program over RAK5804.

Figure 4506: RAK19013 part labels

Battery Connector

Figure 4 shows the battery connector V+ (VBAT) and V- (GND).

Figure 4507: Battery connector pin order

NOTE

The voltage of the battery must not exceed 4.3 V.

Solar Connector

A 5 V Solar panel can be connected to the board via the J2 connector to also serve the purpose of charging the battery. The matching connector for the solar panel wires is an JST ZHR-2 1.5 mm pitch female. A cable assembly for the solar panel connector is also available for purchase in RAK store.

Figure 5 shows the solar connector V+ (VIN) and V- (GND).

Figure 4508: Battery connector pin order

LEDs

Three LEDs are used to indicate the operating status. Below are the functions of the LEDs:

• 🔴 Red LED - Connected to the charger chip to indicate the charger status. When the battery is charging, this red LED is on. When the battery is full, this LED is weak light or off.
• 🟢 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 shown in Figure 3 is connected to the MCU module. When pushed, it resets the MCU.

Pin Definition

The RAK19013 module has a 40-pin WisConnector that is compatible to the WisBlock Power Slot. The pin order of the connector and the pinout definition is shown in Figure 6.

NOTE

VBAT, 3V3, RESET, LED1, LED2, ADC_VBAT, and GND are connected to WisIO connector.

Figure 4509: RAK19013 pinout diagram

Electrical Characteristics

Absolute Maximum Ratings

The Absolute Maximum Ratings of the device are shown in the table below. The stress ratings are the functional operation of the device.

warning

1. If the stress rating goes above what is listed, it may cause permanent damage to the device.
2. Exposure to maximum rating conditions may affect the device reliability.

Ratings	Maximum Value	Unit
Battery voltage (VBAT)	–0.3 to 4.3	V
Solar panel voltage (VIN)	–0.3 to 5.5	V
IOs of WisConnector	–0.3 to VDD+0.3	V

Panel Specification

The RAK19013 LiPo Solar Power Slot module can be powered by a battery, connected to the J4 connector. The nominal operating voltage of the battery should be within the range showed in the following table.

Minimum	Typical	Maximum	Unit
3.3	3.7	4.3	V

A suitable Li-Ion battery should have the following parameters as shown in the table below:

Parameter	Value
Standard Voltage	3.7 V
Charging Voltage	4.2 V
Capacity	As required
Discharge current	At least 500 mA

NOTE

When using a solar panel, you can't use non-rechargeable battery.

Mechanical Characteristic

Board Dimensions

The mechanical dimensions of the RAK19013 module is shown in Figure 7 below.

Figure 4510: RAK19013 mechanical dimensions

WisConnector PCB Layout

Figure 4511: WisConnector PCB footprint and recommendations

Environmental Characteristics

The table below lists the operation and storage temperature requirements of RAK19013:

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 9 shows the schematic of the RAK19013 LiPo Solar Power Slot module.

Figure 4512: RAK19013 LiPo Solar Power Slot Module Schematics