General Description
The MAX6775–MAX6781 low-power, 1%-accurate battery monitors are available in the ultra-small µDFN package (1.0mm x 1.5mm) and SC70 packages. These low-power devices are ideal for monitoring single lithium-ion (Li+) cells, or multicell alkaline/NiCd/NiMH power sources. These devices offer single (MAX6775/ MAX6776/MAX6777/MAX6778) or dual (MAX6779/MAX6780/MAX6781) low-battery outputs and feature fixed or resistor-adjustable hysteresis. Hysteresis eliminates the output chatter sometimes associated with battery voltage monitors, usually due to input-voltage noise or battery terminal voltage recovery after load removal.

Features
♦ 1.0%-Accurate Threshold Specified Over Temperature
♦ Single/Dual, Low-Battery Output Options
♦ Low 3µA Battery Current
♦ Open-Drain or Push-Pull Low-Battery Outputs
♦ Fixed or Adjustable Hysteresis
♦ Low-Input Leakage Current Allows Use of Large Resistors
♦ Guaranteed Valid Low-Battery-Output Logic State Down to VBATT = 1V
♦ Immune to Short Battery Transients
♦ Fully Specified from -40°C to +85°C
♦ Small 5-Pin SC70 or Ultra-Small 6-Pin µDFN (1mm x 1.5mm) Package