ATA5291数据手册Microchip中文资料规格书

描述 Description

An LF antenna driver device for passive entry/go (PEG) systems. It can drive up to eight low-frequency antennas (coils) to provide a wake-up and initialization channel to the key fob. Each driver is programmable up to a peak current of 1A (independent of battery voltage) and adjustable in 18 steps.

特性 Features

• Integrated PEPS driver and transponder immobilizer base station\r
• Internal precision oscillator for carrier generation\r
• IC power supply voltage from 6V to 28V for PEPS operation\r
• IC power supply voltage from 4V to 28V for immobilizer operation\r
• Fast SPI interface (2Mbit/s) for data access and configuration\r
• Transparent data input and data output pinsData transmission and control buffers\r
• Flexible commands set with LOOP and CALL capability allowing for programmable polling mode without the need to re-load the data buffer. This mode does not require any host controller interaction.\r
• Flexible GPIO pin for control of peripherals independent of host\r
• Very low power-down current consumption\r
• QFN 7x7-48 with wettable flanks\r
• LF carrier frequency 125kHz