AP9101C SINGLE CHIP SOLUTION FOR 1-CELL Li+ BATTERY PACK Description Features The AP9101C is a protection IC developed for lithium-ion/lithium Low Current Consumption (+25C) polymer rechargeable battery with a high-precision voltage detection Operation Mode: 3.0A (Typ) V = 3.5V DD circuit. Power-Down Mode: 0.01A (Typ) High-Accuracy Voltage Detection Circuit (+25C) The AP9101C provides a function to protect batteries by detecting Overcharge Detection Voltage: 3.5V to 4.5V (5mV Steps) overcharge voltage, overdischarge voltage, overcharge current, Accuracy 25mV overdischarge current and other abnormalities and turning off the Overcharge Hysteresis Voltage Range: 0.1V to 0.4V (50mV external MOSFET switch. Steps) Accuracy 50mV The AP9101C also has a built-in fixed time circuit (external capacitors Overdischarge Detection Voltage: 2.0V to 3.4V (10mV Steps) are unnecessary) the protection circuitry can be comprised with fewer Accuracy 35mV external components. Overdischarge Hysteresis Voltage Range: 0V to 0.7V (40mV Steps) Accuracy 65mV The AP9101C is available in standard packages of SOT25 and Discharge Overcurrent Detection Voltage: 0.05V to 0.32V SOT26. (10mV Steps) Accuracy 15mV Short Current Detection Voltage: 0.45V to 0.7V (50mV Steps) Accuracy 100mV Applications Charge Overcurrent Detection Voltage: -0.2V to -0.05V (10mV Lithium-Ion Battery Packs Steps) Accuracy 15mV Lithium Polymer Battery Packs Overcharger Detection Voltage: 8.0V (Fixed) Accuracy 2V Overcharger Release Voltage: 7.3V (Fixed) Accuracy 2V Built-In Fixed Detection Delay Time (+25C): Accuracy 20% Power-Down Mode can be Selectable: Available/Unavailable 0V Battery Charge Function can be Selectable: Available/Unavailable Overcharge Protection Mode: Release High-Voltage CMOS Process: Up to 30V between VDD and VM Pins Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. Green Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See AP9101C Typical Applications Circuit (Note 4) P+ R 1 2(5) VDD 330 1(2) VM AP9101C 3(6) VSS Battery C1 DO CO 4(1) 5(3) R2 100nF 2.7K Q1 Q2 P- A(B) A for SOT25 B for SOT26 Note 4: R1 and C1 are used to stabilize the supply voltage of the AP9101C. The recommended range of R1 value is 330 to 470 and C1 value is 10nF to 1000nF, typical value is 100nF. R2 should be connected between P- to V sense terminal to monitor the status of charger and the charge/discharge current. The R2 M should be between 300 and 4k, typical value is 2.7k. R1 and R2 are also used as current limit resistors if the battery or charger is connected reversely. Polarity reversing may cause the power consumption of R1 and R2 to go over their power dissipation rating, therefore R1 and R2 values should be selected appropriately for the actual application. If R2 is more than 4k resistor, CO may not cut off Q2 due to the voltage drop on R2. For power-down mode, when first connecting AP9101C system board to the battery, it is necessary to use charger or to short P- to the battery negative polarity. Once the AP9101C is activated, the charger or connection can be removed, otherwise the battery cannot discharge current through the system board. The values selected should follow the recommended typical range mentioned above. Pin Descriptions Pin Number Pin Name Function SOT25 SOT26 1 2 VM Charger Negative Input Pin 2 5 VDD Positive Power Input Pin 3 6 VSS Negative Power Input Pin 4 1 DO FET Gate Control Pin for Discharge 5 3 CO FET Gate Control Pin for Charge 4 NC Not Connected 2 of 26 AP9101C November 2018 Diodes Incorporated www.diodes.com Document number: DS37771 Rev. 7 - 2