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Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages

Low-Power, 1% Accurate Monitors Allow Longer Battery Life

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • 1% Accurate Threshold Specified Over Full Temperature Range
  • Dual-/Triple-/Quad, Low-Battery Output Options
  • Low 5.7µA Battery Current
  • Open-Drain or Push-Pull Outputs
  • Fixed or Adjustable Hysteresis
  • Low Input Bias Current
  • Guaranteed Valid Low-Battery-Output Logic State Down to VBATT = 1.05V
  • Reverse-Battery Protection
  • Immune to Short Battery Transients
  • Fully Specified from -40°C to +85°C
  • Small TDFN and TQFN Packages

Applications/Uses

  • Battery-Powered Systems (Single-Cell Li+ or Multicell NiMH, NiCd, Alkaline)
  • Cell Phones/Cordless Phones
  • Electronic Toys
  • MP3 Players
  • Pagers
  • PDAs
  • Portable Medical Devices

Description

The MAX6782–MAX6790 are low-power, 1% accurate, dual-/triple-/quad-level battery monitors offered in small TDFN and TQFN packages. These devices are ideal for monitoring single lithium-ion (Li+) cells, or multicell alkaline/NiCd/NiMH power sources. These devices feature fixed and adjustable hysteresis options to eliminate output chattering associated with battery-voltage monitors.

The MAX6782/MAX6783 offer four battery monitors in a single package with factory-set (0.5%, 5%, 10%) or adjustable hysteresis. The MAX6784/MAX6785 provide three battery monitors with factory-set (0.5%, 5%, 10%) or adjustable hysteresis. The MAX6786/MAX6787/MAX6788 offer two battery monitors with external inputs for setting the rising and falling thresholds, allowing external hysteresis control. The MAX6789/MAX6790 feature quad-level overvoltage detectors with complementary outputs.

The MAX6782–MAX6790 are offered with either open-drain or push-pull outputs. The MAX6782/MAX6784/MAX6786/MAX6789 are available with push-pull outputs while the MAX6783/MAX6785/MAX6787/MAX6790 are available with open-drain outputs. The MAX6788 is available with one open-drain output and one push-pull output (see the Selector Guide in the full data sheet). This family of devices is offered in space-saving TDFN and TQFN packages and is fully specified over the -40°C to +85°C extended temperature range.

Simplified Block Diagram

MAX6782, MAX6783, MAX6784, MAX6785, MAX6786, MAX6787, MAX6788, MAX6789, MAX6790: Typical Operating Circuit MAX6782, MAX6783, MAX6784, MAX6785, MAX6786, MAX6787, MAX6788, MAX6789, MAX6790: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .