The AP9234L family is a single chip protection solution specially designed for 1-cell Li+ rechargeable battery pack application.
The AP9234L includes a 1-cell high accuracy Lion battery protection chip and dual N-CH, ultra low RSS(ON) MOSFET with common drain.
The AP9234L provides rich battery protection features and can turn-off the N-CH MOSFET by detecting overcharge voltage/current, over discharge voltage/current, or load short circuit. AP9234L has built-in fixed delay time to save external components.
The AP9234L integrated highly accurate detection circuits and can compensate according to internal MOSFET Rsson performance to ensure extremely high charge/discharge current accuracy under both room and full temperature.
AP9234L is available in U-DFN2535-6 package.
Lithium-Ion Battery Packs
Lithium Polymer Battery Packs
High Voltage CMOS Process, up to 24V (VDD to VM)
Low Quiescent Current (+25°C ) In Normal Mode, 3.0µA (Typ), 4.5µA (Max)
High Accuracy Voltage Detection (+25°C )
Overcharge Detection Voltage: 3.5V to 4.5V (5mV/step) -15mV, +25mV
Overcharge Release Voltage: 3.4V to 4.4V (50mV/step) ±50mV
Overdischarge Detection Voltage: 2.0V to 3.4V (10mV/step) ±35mV
Overdischarge Release Voltage: 2.7V to 3.4V (40mV/step) ±65mV (No Power-Down Mode)
Discharge Overcurrent Detection Voltage: 0.05V to 0.32V (10mV/step) ±12mV
Short Current Detection Voltage: 0.45V to 0.7V (50mV/step) ±50mV
Charge Overcurrent Detection Voltage: -0.20V to -0.05V (10mV/step) ±12mV
Overcharger Detection Voltage: 8.0V (fixed) ±2.0V
Overcharger Release Voltage: 7.3V (fixed) ±2.0V
High Accuracy Current Detection (+25°C ) Charge/Discharge Current Limit: ±2A
Built-In Delay Time (+25°C ), Accuracy ±20%
Auto-Wake-Up Function (No Power-Down)
0V Battery Charge Selectable (Permission or Inhibition)
Overcharge Protection Mode Selectable (Auto Release or Latch)