UMFT231XC

UMFT231XC Datasheet Version 1.0 Document Reference No.: FT_000521 Clearance No.: FTDI# 273 Future Technology Devices International Ltd Datasheet UMFT231XC USB to UART with Battery Charger Support UMFT231XC is a USB to UART development module with battery charging support. 1 Introduction UMFT231XC is a development module designed primarily for evaluating the battery charging feature of FTDI’s X-Chip range of USB-interface bridging ICs. This module is suitable for charging single cell lithium-ion batteries. UMFT231XC utilises an FT231XS and a battery charging IC. FT231XS is one of the devices from FTDI’s range of USB interface bridging IC devices. FT231X is a USB to UART interface with a battery charger detection feature, which can allow batteries to be charged with a higher current from a dedicated charger port (without the FT231X being enumerated). The module includes a LTC4053EDD, which is a lithium-ion battery charger with thermal regulation. FTDI X-Chips are designed to operate with battery charger chips, such as the LTC4053EDD, to facilitate charging a battery of a device via USB slave port, with either 1 Amp of current from a dedicated charger port or with up to 500mA from a USB host without violating USB compliance regulations. The X-Chip family are designed to implement this feature without the requirement of external MOSFET or controller chips to regulate the current divider network of the LTC4053 chip. The on-chip MTP ROM of the FT231XS is programmed by default to s...