Описание
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 Li+ battery protection chip and dual N-CH, ultra low RSS(ON) MOSFET with common drain. The AP9234L provides rich battery protection features and can turnoff the N-Channel MOSFET by detecting overcharge voltage/current, overdischarge voltage/current, or load short circuit. AP9234 has builtin fixed delay time to save external components.The AP9234L integrates highly accurate detection circuits and can compensate according to internal MOSFET RSS(ON) performance to ensure extremely high charge/discharge current accuracy under both room and full temperature.AP9234L is available in U-DFN2535-6 package.
- High-Voltage CMOS Process, up to 24V (VDD to VM)
- Low Quiescent Current (+25°C ) o Operation Mode: 3.0µA Typ. VDD = 3.5V o Power-Down Mode: 0.01µA Typ.
- High Accuracy Voltage Detection (+25°C ) o Overcharge Detection Voltage: 3.5V to 4.5V (5mV/step) Accuracy -15mV, +25mV o Overcharge Release Voltage: 3.4V to 4.4V (50mV/step) Accuracy ±50mV o Overdischarge Detection Voltage: 2.0V to 3.4V (10mV/step) Accuracy ±35mV o Overdischarge Release Voltage: 2.7V to 3.4V (40mV/step) Accuracy ±65mV (No Power-down Mode) o Discharge Overcurrent Detection Voltage: 0.03V to 0.19V (10mV/step) Accuracy ±12mV o Short Current Detection Voltage: 0.16V to 0.32V (50mV/step) Accuracy ±50mV o Charge Overcurrent Detection Voltage: -0.19V to -0.03V (10mV/step) Accuracy ±12mV o Over Charger Detection Voltage: 8.0V (fixed) Accuracy ±2.0V o Over Charger Release Voltage: 7.3V (fixed) Accuracy ±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)
- Totally Lead-Free & Fully RoHS Compliant
- Halogen and Antimony Free. “Green” Device
