The AP9211 is a single chip protection solution specially designed for 1-cell Li+ rechargeable battery pack application.The AP9211 includes a 1-cell Lithium ion battery protection chip and dual N-CHANNEL MOSFET with common drain.The AP9211 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. AP9211 has builtin fixed delay time to save external components.The AP9211 is available in U-DFN2030-6 package.
High Voltage CMOS Process, up to 30V (VDD to VM)
Low Quiescent Current (+25°C ) In Normal Mode, 3.0µA (Typ.), 4.5µA (Max.) VDD = 3.5V In Power-Down Mode, 0.1µA (Max.)
High-Accuracy Voltage Detection Circuit (+25°C) Overcharge Detection Voltage: 3.5V to 4.5V (5mV Steps) Accuracy ±25mV Overcharge Hysteresis Voltage Range: 0.1V to 0.4V (50mV Steps) Accuracy ±50mV Overdischarge Detection Voltage: 2.0V to 3.4V (10mV Steps) Accuracy ±35mV Overdischarge Hysteresis Voltage Range: 0V to 0.7V (40mV Steps) Accuracy ±65mV Discharge Overcurrent Detection Voltage: 0.05V to 0.32V (10mV Steps) Accuracy ±15mV Short Current Detection Voltage: 0.45V to 0.7V (50mV Steps) Accuracy ±100mV Charge Overcurrent Detection Voltage: -0.2V to -0.05V (10mV Steps) Accuracy ±15mV Overcharger Detection Voltage: 8.0V (Fixed) Accuracy ±2V Overcharger Release Voltage: 7.3V (Fixed) Accuracy ±2V
Built-in Fixed Detection 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)