AP9234L

AP9234L HIGH ACCURACY SINGLE CHIP SOLUTION FOR 1-CELL Li+ BATTERY PACK Description The AP9234L family is a single-chip protection solution specially designed for one-cell Li+ rechargeable battery pack applications. It includes a one-cell, high-accuracy Li+ battery-protection controller and dual N-channel, ultralow RSS(ON) MOSFETs with common drain. The AP9234L provides rich battery protection features and can turn off the N-channel MOSFETs by detecting overcharge voltage/current, overdischarge voltage/current, or load short circuit. The AP9234L has a built-in 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 the full operating temperature range. The AP9234L is available in the U-DFN2535-6 (Type B) package. Pin Assignments TOP VIEW S1 1 VSS 2 VDD 3 EP U-DFN2535-6 (Type B) 6 S2 5 VM 4 NC Features 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. 1µA Max. VDD = 1.8V 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 Over-discharge Detection Voltage: 2.0V to 3.4V, 10mV/step, Accuracy ±35mV o Over-discharge Release Voltage: 2.7V to 3.4V, 40mV/step, Accuracy ±6...