Overview

General Description

The MAX49017 is a space-saving, dual comparator with a built-in voltage reference and push-pull output. The device is AEC-Q100 qualified, which is ideal for automotive applications: car battery monitoring systems, infotainment head units, and ADAS modules. The MAX49017 is available in an 8-pin, 2mm x 2mm TDFN package with side-wettable flanks.

The device features a Beyond-the-Rails™ input, offers a supply voltage range from 1.7V to 5.5V, and consumes only 1.35μA of supply current. The device also features internal filtering to provide high RF immunity, which is important in automotive systems.

The device has a built-in 1.252V reference that is factory-trimmed to an initial accuracy of 1% and better than 2.5% over the entire temperature range. The reference output is stable for capacitive loads up to 100pF or above 0.1µF (with an unstable region from 100pF and 0.1µF).

The MAX49017 is fully specified over the -40°C to +125°C automotive temperature range.

Simplified Block Diagram
Benefits and Features
  • Micropower Operating Current (Total 1.35μA (typ), 2.55μA (max)) Preserves Battery Power
  • Internal Precision Reference Saves Space and Cost of an External Reference
    • < 1% at Room Temperature, < 2.5% over Temperature Reference
  • ±200mV (typ) Beyond-the-Rails Input Voltage Range
  • Supply Voltage Range (1.7V to 5.5V) Allows Operation from 1.8V, 2.5V, 3V, and 5V Supplies
  • < 10μs Propagation Delay
  • Push-Pull Output
  • Tiny, 2mm x 2mm, 8-Pin Side-Wettable TDFN Package with Exposed Pad Saves Board Space
  • Enable Automotive Safety Integrity Level (ASIL) Compliance
  • AEC-Q100 Qualified, See Ordering Information for the List of /V Parts
Applications
  • Automotive           
    • Car Battery Monitoring Systems
    • ADAS   


Beyond-the-Rails is a trademark of Maxim Integrated Products, Inc.


19-100578; Rev 2; 9/20