AS8515-ZMFM

Some key features of the AS8515 data acquisition system with power management and LIN transceiver include: - A precision voltage attenuator with power down facility . - LIN 2.1 transceiver . - Power-On Reset with programmable reset timeout and brown-out detection through factory setting . - A window Watchdog function in the normal mode and a timeout Watchdog in the device standby mode as a factory option . - Load dump protection (42V) for all battery supplied pins and Enable pin . - Internal reverse polarity protection (up to -27V) for all battery-sensing pins, and LIN bus pin . - Over temperature warning & shutdown functions . - Two independent high resolution A/D converters with programmable over sampling ratio . - Programmable sampling rate up to 4kHz throughput . - Programmable gain, low noise amplifier for current channel with . AS8515 data acquisition system with power management and LIN transceiver.

The purpose of the AS8515 device in battery sensor applications is to simultaneously measure the shunt current sensor signal and battery voltage using two independent ADC channels. It can measure small signals up to ±219 mV versus ground through a programmable gain amplifier or larger signals in the 1V range without an amplifier. The device is designed for battery sensors, specifically for lead acid and Li-Ion batteries up to 18V nominal with a 42V overvoltage capability. Additionally, it serves as a general-purpose sensor interface for automotive LIN slaves.

The AS8515 device is powered directly from the battery through an LDO (Low Dropout Regulator) .