Datasheet ADP5065 (Analog Devices) - 8

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ADP5065 Data Sheet PIN CONFIGURATION AND FUNCTION DESCRIPTIONS BALL A1 CORNER 1 2 3 4 V_WEAK_SET SCL THR IIN_EXT A SDA TRK_EXT ISO_B1 ISO_B2 B BAT_SNS AGND ISO_S1 ISO_S2 C VIN1 SYS_ON_OK SW1 PGND1 D VIN2 CFILT SW2 PGND2 E TOP VIEW
003
(BALL SIDE DOWN) Not to Scale
09370- Figure 3. Pin Configuration
Table 6. Pin Function Descriptions Pin No. Mnemonic Type1 Description
D3, E3 SW1, SW2 I/O DC-to-DC Converter Inductor Connection. These pins are high current outputs when in charging mode. D1, E1 VIN1, VIN2 I/O Power Connection to USB VBUS. These pins are high current inputs when in charging mode. D4, E4 PGND1, G Charger Power Ground. These pins are high current inputs when in charging mode. PGND2 C2 AGND G Analog Ground. E2 CFILT I/O 4.7 μF Filter Capacitor Connection. This pin is a high current input/output when in charging mode. C3, C4 ISO_S1, ISO_S2 I/O Charger Supply Side Input to Internal Isolation FET/Battery Current Regulation FET. B3, B4 ISO_B1, I/O Battery Supply Side Input to Internal Isolation FET/Battery Current Regulation FET. ISO_B2 A2 SCL I I2C-Compatible Interface Serial Clock. B1 SDA I/O I2C-Compatible Interface Serial Data. A4 IIN_EXT I Set Input Current Limit. This pin sets the input current limit directly. When IIN_EXT = low or high-Z, the input limit is 100 mA. When IIN_EXT = high, the input limit is 500 mA. B2 TRK_EXT I Enable Trickle Charge Function. When TRK_EXT = low or high-Z, the trickle charge is enabled. When TRK_EXT = high, the trickle charge is disabled. A3 THR I Battery Pack Thermistor Connection. If not used, connect a dummy 10 kΩ resistor from THR to GND. C1 BAT_SNS I Battery Voltage Sense Pin. D2 SYS_ON_OK O Battery Okay Open-Drain Output Flag. Active low. This pin enables the system when the battery reaches VWEAK. A1 V_WEAK_SET I/O External Resistor Setting Pin for V_WEAK threshold. The use of this pin is optional. When not in use, connect to GND. 1 I is input, O is output, I/O is input/output, and G is ground. Rev. D | Page 8 of 40 Document Outline Features Applications Functional Block Diagram General Description Revision History Specifications Recommended Input and Output Capacitance I2C-Compatible Interface Timing Specifications Timing Diagram Absolute Maximum Ratings Thermal Resistance Maximum Power Dissipation ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Temperature Characteristics Typical Waveforms Theory of Operation Introduction Charger Modes Input Current Limit USB Compatibility Trickle Charge Mode Trickle Charge Mode Timer Weak Charge Mode (Constant Current) Fast Charge Mode (Constant Current) Fast Charge Mode (Constant Voltage) Fast Charge Mode Timer Watchdog Timer Safety Timer Charge Complete Recharge Battery Charging Enable/Disable Thermal Management Isothermal Charging Thermal Shutdown and Thermal Early Warning Fault Recovery Battery Isolation FET Battery Detection Battery Level Detection Battery (ISO_Bx) Short Detection Battery Pack Temperature Sensing Battery Thermistor Input JEITA Li-Ion Battery Temperature Charging Specification External Resistor for V_WEAK_SET I2C Interface Charger Operational Flowchart I2C Register Map Register Bit Descriptions Applications Information External Components Inductor Selection ISO_Sx (VOUT) and ISO_Bx Capacitor Selection VINx Capacitor Selection CFILT Capacitor Selection PCB Layout Guidelines Power Dissipation and Thermal Considerations Charger Power Dissipation Junction Temperature Factory-Programmable Options Packaging and Ordering Information Outline Dimensions Ordering Guide