Diodes Incorporated AP9211 Single Chip Protection Solution

Diodes Inc. AP9211 Single Chip Protection Solution is specially designed for 1-cell Li+ rechargeable battery pack applications. The AP9211 includes a 1-cell Lithium-ion battery protection chip and dual N-Channel MOSFET with common drain. It provides rich battery protection features and can turn-off the N-Channel MOSFET by detecting overcharge voltage/current, over discharge voltage/current, or load short circuit. The AP9211 has a built-in fixed delay time to save external components and is available in a U-DFN2030-6 package.

Features

  • High voltage CMOS process, up to 30V (VDD to VM)
  • Low quiescent current (+25°C )
  • In normal mode, 3.0µA (Typ.), 4.5µA (Max.)
  • In power-down mode, 0.1µA (Max.)
  • High accuracy voltage detection (+25°C )
  • Overcharge detection voltage of 3.5V to 4.5V (5mV/Step) ±25mV
  • Overcharge release voltage of 3.4V to 4.4V (50mV/Step) ±50mV
  • Overdischarge detection voltage of 2.0V to 3.4V (10mV/Step) ±35mV
  • Overdischarge release voltage of 2.7V to 3.4V (40mV/Step) ±65mV (no power-down mode)
  • Discharge overcurrent detection voltage of 0.05V to 0.32V (10mV/step) ±15mV
  • Short current detection voltage of 0.45V to 0.7V (50mV/Step) ±100mV
  • Charge overcurrent detection voltage of -0.20V to -0.05V (10mV/Step) ±15mV
  • Over charger detection voltage of 8.0V (fixed) ±2.0V
  • Over charger release voltage of 7.3V (fixed) ±2.0V
  • Built-in delay time (+25°C ), accuracy ±20%
  • Power-down mode selectable (yes or no)
  • 0V Battery charge selectable (permission or inhibition)
  • Overcharge protection mode selectable (auto release or latch)
  • Totally lead-free & fully RoHS compliant 
  • Halogen and antimony free, "green" device 

Functional Block Diagram

Block Diagram - Diodes Incorporated AP9211 Single Chip Protection Solution
Published: 2015-09-22 | Updated: 2022-03-11