Description
STEVAL-ISB038V1T is the wireless battery charger transmitter module in the STEVALISB038V1 Reference Design Kit. The STEVAL-ISB038V1 is a wireless battery charger evaluation kit designed for ultra-compact battery operated devices such as wearable gear, smartwatches, Internet Of Things sensors, medical devices, etc. The kit supports wireless power transfer of 1 Watt over an 11 mm coil on the receiver side and 20 mm on transmitter side. The kit configuration delivers 1 Watt of power at the receiver side. While the Kit is configured to support low power (1 W) applications, it can support up to 3 W applications with wider coils or by switching to full-bridge configuration on the transmitters. The STWBC-WA transmitter is based on a costeffective half bridge topology (full-bridge optional) offering the flexibility of a powerful software API allowing LED and GPIO control, as well as adding external interfaces via I²C and UART communication ports.

Features
■ STWBC-WA based wireless power transmitter − Additional transmitter module compatible with the STEVAL-ISB038V1 reference kit − Cost effective Half Bridge topology with integrated drivers − Optional Full Bridge configuration for 3 W applications − Active presence detector − 2-layer PCB for easy design − Turnkey solution or customizable via APIs − Parametric customization via graphical interface
■ Full 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
■ STWLC04 wireless power receiver − Output voltage: 5 V regulated voltage − Integrated high efficiency synchronous rectifier − Li-Ion/Li-Pol charger functionality − 4-layer PCB for easy design