MAX8731E (MAX8724ETI+T)

  MAX8731E (MAX8724ETI+T) SMBus Level 2 Battery Charger with Remote Sense:

  • The MAX8731 provides a digital output that indicates the presence of the AC adapter, as well as an analog output that indicates the adapter current within 4% accuracy.
  • The MAX8731 is available in a small 5mm x 5mm, 28-pin, thin (0.8mm) QFN package. An evaluation kit is available to reduce design time.
SKU: SLY-IC238 Category:
Description

Product Description

DESCRIPTION:

  • The MAX8731 is an SMBus™ programmable multichemistry battery charger. The MAX8731 uses a minimal command set to easily program the charge voltage, charge current, and adapter current limit.
  • The MAX8731 charges one to four Li+ series cells and delivers up to 8A charge current.
  • The MAX8731 drives n-channel MOSFETs for improved efficiency and reduced cost. Low-offset current-sense amplifiers provide high accuracy with 10mΩ sense resistors.
  • The MAX8731 current-sense amplifiers provide high accuracy (3% at 3.5A) and also provide fast cycle-by-cycle current-mode control to protect against battery short circuit and system load transients.
  • Technical sheet: https://pdf1.alldatasheet.com/datasheet-pdf/view/170141/MAXIM/MAX8731ETI+.html

FEATURES:

  • 0.5% Battery Voltage Accuracy
  • 3% Input Current-Limit Accuracy
  • 3% Charge-Current Accuracy
  • SMBus 2-Wire Serial Interface
  • Cycle-by-Cycle Current Limit
                       -Battery Short-Circuit Protection
                       -Fast Response for Pulse Charging
                       -Fast System-Load-Transient Response
  • Dual-Remote-Sense Inputs
  • Monitor Outputs for
                      -Adapter Current (4% Accuracy)
                      -AC Adapter Detection
  • 11-Bit Battery Voltage Setting
  • 6-Bit Charge-Current/Input-Current Setting
  • 8A (max) Battery Charger Current
  • 11A (max) Input Current
  • +8V to +26V Input Voltage Range
  • Charges Li+, NiMH, and NiCd Battery Chemistries

APPLICATIONS:

  • Notebook Computers
  • Tablet PCs
  • Medical Devices
  • Portable Equipment with Rechargeable Batteries
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