AP9234L (Not Recommended for new design)

Description

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 R_SS(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.

Feature(s)

• High Voltage CMOS Process, up to 24V (V_DD to V_M)
• 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)

Application(s)

• Lithium-Ion Battery Packs
• Lithium Polymer Battery Packs