SCBA020A October 1999 – March 2020 TMS3705
The TMS3705 IC is manufactured in a CMOS process and contains all elements needed to build a TIRIS RF module. These elements include two push-pull stages that form a full bridge to drive the antenna circuit directly. Their drive capability (I_OC_min) supports short-range applications such as automotive immobilizers or contactless identification. If a short circuit produces a current higher than I_OC_max, the overcurrent protection circuit disables the driver stages for the time t_doc.