MCP73830/L Single-Cell Li-Ion/Li-Polymer Battery Charge Management Controllers in 2x2 TDFN Features: Description: Complete Linear Charge Management Controller: The MCP73830/L are highly integrated, Li-Ion battery charge management controllers for use in space-limited - Integrated pass transistor applications. The MCP73830/L devices provide specific - Integrated current sense charge algorithms for single-cell Li-Ion/Li-Polymer batter- - Integrated Reverse Discharge Protection ies to achieve optimal capacity and safety in the shortest Constant-Current/Constant Voltage Operation charging time possible. Along with its small physical size, High-Accuracy Preset Voltage Regulation: the low number of external components makes the - 4.20V +0.75% MCP73830/L ideally suitable for portable applications. Programmable Charge Current: The MCP73830L employs a constant-current/constant voltage charge algorithm. The minimum 20 mA regu- - MCP73830L: 20 mA-200 mA lated constant, fast charge current enables the design - MCP73830: 100 mA-1000 mA in small Li-Ion batteries and low supply current applica- Soft Start to Avoid Inrush Current tions. The fast charge, constant-current value is set Preconditioning: with one external resistor, from 20 mA to 200 mA. The - 10% and no preconditioning MCP73830 allows up to 1000 mA charge current for Fixed Elapsed Timer: 4 Hours applications that require faster constant current. Fixed Preconditioning Timer: 1 Hour The MCP73830/L devices provide a thermal foldback Automatic Recharge: No Auto-Recharge is also function that limits the charge current, based on die Available with Selected Options temperature during high-power or high-ambient condi- tions. This thermal regulation optimizes the charge Automatic End-of-Charge (EOC) Control cycle time while maintaining device reliability. Termination: - 7.5% and 10% The MCP73830/L devices are fully specified over the ambient temperature range of -40C to +85C. The Automatic Power-Down when Input Power MCP73830/L is available in a 6 lead, TDFN package. Removed Undervoltage Lockout (UVLO) Package Types (Top View) Chip/Charge Enable Pin (CE) Packaging: MCP73830/L 2x2 TDFN * - TDFN-6 (2x2 mm) Temperature Range: -40C to +85C V 6 1 PROG SS Applications: EP STAT 2 5 CE Bluetooth Headsets 7 Portable Media Players V 4 V 3 BAT DD Rechargeable 3D Glasses Toy and Gaming Controllers * Includes Exposed Thermal Pad (EP) see Table 3-1. TABLE 1: AVAILABLE FACTORY PRESET OPTIONS Charge Voltage Preconditioning Charge Current End-of-Charge Control Auto-Recharge 4.2V 10%/Disabled 7.5%/10% Yes/No 2011-2019 Microchip Technology Inc. DS20005049E-page 1MCP73830/L Typical Application MCP73830/L 4 3 V V DD BAT + 4.7 F 4.7 F 1-Cell Regulated 2 6 Li-Ion STAT PROG Wall Cube Battery 1k 2k 5 1 Lo V CE Hi SS Functional Block Diagram Direction Control V V DD BAT PROG G = 0.001 CA V REF PRECONDITION V REF CHRG V REF VA V REF TERM STAT V REF UVLO, Reference, Charge CE Control, Timer and UVLO Status Logic V REF V DD V SS DS20005049E-page 2 2011-2019 Microchip Technology Inc. + + + + + +