AS8515-ZMFM

Overview

The AS8515 is a stacked-die system integrating power management, LIN transceiver, and sensor interface functions for 12V battery sensors. It features two independent ADC channels with programmable gain amplifiers (PGA) supporting ±160 mV shunt signals or 1V range inputs. The device includes an internal LDO providing a 3.3V supply, a LIN 2.1 transceiver, and precision voltage attenuator. Key specifications include a maximum supply voltage of 42V, operating temperature range from -40°C to 115°C, and a 32-pin MLF (5x5 mm) package.

Feature Summary

• Dual-channel data acquisition with programmable gain amplifiers and offset auto-zero architecture
• Integrated LIN 2.1 transceiver with slew-controlled bus driver and timeout watchdog
• High-voltage tolerant power management with load dump protection up to 42V
• Internal low-dropout regulator providing regulated 3.3V output for external microcontrollers

Applications

• Battery sensors for lead-acid, AGM, and Li-Ion batteries up to 18V nominal
• Automotive LIN slave sensor interfaces requiring simultaneous current and voltage monitoring
• General-purpose automotive sensor applications with high-voltage tolerance requirements

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm exact configuration options. Ensure compatibility with automotive environmental standards such as AEC-Q100 if required for the application. Confirm package marking and revision details prior to procurement to avoid integration issues.

Selection Notes

Select this component when simultaneous measurement of shunt current and battery voltage is required in a single integrated solution. Consider the 32-pin MLF package constraints and thermal dissipation limits. Evaluate the need for LIN communication versus standard SPI-only interfaces based on system architecture requirements.

Part Context

The AS8515 belongs to the family of automotive-grade sensor interface ICs designed by ams OSRAM. It combines high-voltage power management capabilities with precision analog-to-digital conversion, targeting demanding automotive environments where reliability and electromagnetic compatibility are critical.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided datasheet. Verify pin compatibility and electrical characteristics carefully if considering alternative components from other manufacturers.