STEVAL-ISB038V1:1 W wearable wireless power system based on STWBC-WA and STWLC04
The STEVAL-ISB038V1 is a wireless battery charger reference design evaluation kit
designed for ultra-compact battery operated devices, such as wearable gear,
smartwatches, Internet of Things sensors and healthcare devices.
The design is optimized for 1-watt wireless power transfer with a half-bridge topology on
the transmitter side and with tiny 11 mm and 20 mm coils on the receiver and transmitter
sides, respectively. For power transfers up to 3 watts, the design can be modified by
using larger coils and a full-bridge configuration on the transmitter.
The STWBC-WA transmitter can support a cost-effective half-bridge topology (full-bridge
optional) and a powerful software API lets you modify the behavior of LED and general
purpose IOs as well as connecting external peripherals or devices like sensors to the
design via the on-chip I²C and UART ports.
The STWLC04 is designed for 1-watt power transfer based on the Qi protocol, with digital
control and precise analog control loops ensuring stable operation. The I²C interface
allows a high degree of customization and settings can be stored in the embedded
non-volatile memory.
Key Features
- Wearable KIT characteristics:
- 11 mm coil on
Receiver
- 20 mm coil on
Transmitter
- 1 Watt delivered on Receiver
side
- USB 5 V
input
- Foreign Object Detection (FOD)
optional
- Graphical interface for monitoring
behavior
- Total reference
design
- RoHS compliant
- STWBC-WA Wireless power transmitter:
- Cost effective Half Bridge
topology with integrated drivers
- Optional Full Bridge
configuration for 3 W applications
- Active presence
detector
- 2-layer PCB to facilitate
design
- Turnkey solution or customizable via
APIs
- Parametric customization via Graphical
interface
- STWLC04 wireless power receiver:
- Output voltage: 5 V regulated
voltage
- Integrated high efficiency synchronous
rectifier
- Li-Ion/Li-Pol charger
functionality
- 4-layer PCB to facilitate
design
Product Specifications
Application Notes
User Manuals
Board Manufacturing Specifications
Bill of Materials
Schematic Packs
License Agreement
Evaluation Tool Software
Part Number | Manufacturer | Description |
---|
STSW-ISB038RGUI | ST | Graphical user interface for STEVAL-ISB038V1R wearable wireless power receiver evaluation board based on STWLC04 |
Solution Evaluation Tools
Part Number | Manufacturer | Description |
---|
STEVAL-ISB038V1R | ST | 1 W Wearable wireless charger receiver based on STWLC04 |
STEVAL-ISB038V1T | ST | 1 W wearable wireless power transmitter based on STWBC-WA |
Sample & Buy
Part Number | Core Product | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
---|
STEVAL-ISB038V1 | STWBC-WA; STWLC04 | 112 | 1 | NEC | 3A991A2 | ITALY |
Quality & Reliability
Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
---|
STEVAL-ISB038V1 | CARD | Industrial | Ecopack2 | |