Silicon Laboratories QSG151 User Manual

QSG151: USB Type-C Rechargeable

Not Recommended for New Designs

Battery Pack Reference Design
(SLRDK1000)

SLRDK1000A is a reference design for a small and cost effective
USB Type-C rechargeable battery pack. A Silicon Labs EFM8BB3
Busy Bee microcontroller is used for USB Type-C Power Delivery
(PD) negotiation.

The USB Type-C Battery Pack Reference Design ships with a ready to use demo firm­ware that is capable of operating in both sink and source mode, delivering up to 15 W
(3.0 A at 5 V) of output power or charging a connected Lithium battery with up to 1.8 A
charge current.

An on-board SEGGER J-Link debugger enables easy customization and development.

KIT CONTENTS

• EFM8BB3 USB Type-C Rechargeable
Battery Pack Reference Design Board

• USB Type-C cable

•

USB micro cable

• Getting Started card

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QSG151: USB Type-C Rechargeable Battery Pack Reference Design (SLRDK1000)

Not Recommended for New Designs

Getting Started

1. Getting Started

Set Up the Hardware

1. Connect the Lithium-Ion battery to the JST connector or to the battery terminals. See the User Guide listed in 2. Resources for
more information on decoding the [CHARGE S0] and [CHARGE S1] LEDs.

2. Connect a USB Type-C device (phone, tablet, laptop, etc.) to the board.

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Charge the Battery or the USB Type-C Device

Not Recommended for New Designs

QSG151: USB Type-C Rechargeable Battery Pack Reference Design (SLRDK1000)

Getting Started

1. If [LED0] is
board is sinking power. The LED labeled [BOOST ACT] will turn on whenever the output current of the boost converter is higher
than 50 mA.

2. Press the [MODE] button to switch between sourcing or sinking power. Sourcing power will charge the USB Type-C device, while
sinking power will charge the battery from the USB Type-C device.

on and [LED1] is off, this indicates the board is sourcing power. If [LED0] is off and [LED1] is on, this indicates the

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LED0 LED1 BOOST ACT Description

On Off X Board is sourcing power.

Off On X Board is sinking power.

X X On The output current of the boost converter is higher than 50 mA.

Access the Reference Design Firmware

To view,
the [8051 SDK v4.0.7] package or later.

edit, or build the reference design firmware, download Simplicity Studio from the Silicon Labs website and install or update to

Table 1.1. LED State Decoder

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