Datasheet MAX77659 (Maxim) - 7

link to page 28 link to page 30 link to page 32 link to page 33 link to page 35 link to page 36 link to page 38 link to page 39 link to page 40 link to page 41 link to page 42 link to page 43 link to page 44 link to page 46 link to page 51 link to page 52 link to page 54 link to page 59 link to page 59 link to page 60 link to page 63 link to page 65 link to page 66 link to page 67 link to page 70 link to page 72 link to page 73 link to page 73 link to page 74 link to page 74 link to page 75 link to page 75 link to page 75 link to page 76 link to page 77 link to page 78 link to page 79 link to page 80 link to page 80 MAX77659 SIMO PMIC with 300mA Switching Charger LIST OF FIGURES Figure 1. Part Number Decode . 28 Figure 2. Top-Level Interconnect Simplified Diagram . 30 Figure 3. nEN Usage Timing Diagram . 32 Figure 4. nEN Pullup Resistor Configuration . 33 Figure 5. GPIOx Block Diagram . 35 Figure 6. Top Level On/Off Controller State Diagram . 36 Figure 7. On/Off Controller Reset and Off-Action Sequences . 38 Figure 8. Power-Up/Down Sequence . 39 Figure 9. Flexible Power Sequencer Basic Timing Diagram . 40 Figure 10. Startup Timing Diagram Due to nEN . 41 Figure 11. Startup Timing Diagram Due to Charge Source Insertion . 42 Figure 12. Debounced Inputs . 43 Figure 13. Watchdog Timer State Machine . 44 Figure 14. SIMO Detailed Block Diagram (when CHGIN = 0V) . 46 Figure 15. Component Selection—High Utilization . 51 Figure 16. Component Selection—Final Current Peak Limits . 52 Figure 17. Component Selection—Expected Ripple . 54 Figure 18. QBAT Control Loops . 59 Figure 19. Charger State Diagram . 60 Figure 20. Example Charge Profile . 63 Figure 21. Safe-Charging Profile Example . 65 Figure 22. Thermistor Bias State Diagram . 66 Figure 23. Thermistor Circuit with Adjusting Series and Parallel Resistors . 67 Figure 24. LDO Simplified Block Diagram . 70 Figure 25. LDO to LSW Transition Waveform . 72 Figure 26. I2C Simplified Block Diagram . 73 Figure 27. I2C System Configuration . 74 Figure 28. I2C Start and Stop Conditions . 75 Figure 29. Acknowledge Bit . 75 Figure 30. Slave Address Example . 76 Figure 31. Writing to a Single Register with the Write Byte Protocol . 77 Figure 32. Writing to Sequential Registers X to N . 78 Figure 33. Reading from a Single Register with the Read Byte Protocol . 79 Figure 34. Reading Continuously from Sequential Registers X to N . 80 Figure 35. Engaging HS Mode . 80 www.maximintegrated.com Maxim Integrated | 7 Document Outline General Description Applications Benefits and Features Simplified Block Diagram Absolute Maximum Ratings Package Information WLP Electrical Characteristics Electrical Characteristics—Global Resources Electrical Characteristics—Global Resources (continued) Electrical Characteristics—SIMO Buck-Boost Electrical Characteristics—SIMO Buck-Boost (continued) Electrical Characteristics—Smart Power Selector Charger Electrical Characteristics—Smart Power Selector Charger (continued) Electrical Characteristics—Adjustable Thermistor Temperature Monitors Electrical Characteristics—Adjustable Thermistor Temperature Monitors (continued) Electrical Characteristics—Analog Multiplexer Electrical Characteristics—Analog Multiplexer (continued) Electrical Characteristics—Low-Dropout Linear Regulator (LDO)/Load Switch (LSW) Electrical Characteristics—Low-Dropout Linear Regulator (LDO)/Load Switch (LSW) (continued) Electrical Characteristics—I2C Serial Communication Electrical Characteristics—I2C Serial Communication (continued) Typical Operating Characteristics Typical Operating Characteristics (continued) Pin Configuration MAX77659xENV Pin Description Pin Description (continued) Detailed Description Part Number Decoding Support Material Top-Level Interconnect Simplified Diagram Detailed Description—Global Resources Features and Benefits Voltage Monitors AVL POR Comparator AVL Undervoltage-Lockout Comparator SYS Overvoltage-Lockout Comparator Chip Identification nEN Enable Input nEN Manual Reset nEN Dual-Functionality: Push-Button vs. Slide-Switch nEN Internal Pullup Resistors to VCCINT Interrupts (nIRQ) Reset Output (nRST) General-Purpose Input Output (GPIO) Alternate Mode On/Off Controller Top Level On/Off Controller On/Off Controller Transition Table Internal Wake-Up Flags Reset and Off Sequences Power-Up/Down Sequence Flexible Power Sequencer (FPS) Startup Timing Diagram Due to nEN Startup Timing Diagram Due to Charge Source Insertion Force Enabled/Disabled Channels Factory-Ship Mode State Debounced Inputs (nEN, GPI, CHGIN) Watchdog Timer (WDT) Detailed Description—SIMO Buck-Boost SIMO Features and Benefits SIMO Detailed Block Diagram SIMO Control Scheme Drive Strength SIMO Soft-Start SIMO Registers SIMO Active Discharge Resistance SIMO Buck Mode Applications Information SIMO Available Output Current Inductor Selection Input Capacitor Selection Boost Capacitor Selection Output Capacitor Selection Example Component Selection Inductor, Peak Current Limit, and Input Capacitor Output Capacitors Summary SIMO Switching Frequency Unused Outputs PCB Layout Guide Capacitors Input Capacitor at IN_SBB Output Capacitors at SBBx Inductor Ground Connections Detailed Description—Smart Power Selector Charger Switching Charger Implementation with SIMO Architecture Charger Symbol Reference Guide Smart Power Selector Die Temperature Regulation Charger State Machine Charger-Off State Prequalification State Fast-Charge States Headroom Control Top-Off State Done State Prequalification Timer Fault State Fast-Charge Timer Fault State Battery Temperature Fault State JEITA-Modified States Typical Charge Profile Charger Applications Information CHGIN/SYS/BATT Capacitor Selection Detailed Description—Adjustable Thermistor Temperature Monitors Thermistor Bias Configurable Temperature Thresholds Applications Information Using Different Thermistor β NTC Thermistor Selection Detailed Description—Analog Multiplexer Measuring Battery Current Method for Measuring Discharge Current Method for Measuring Charge Current Detailed Description—Low-Dropout Linear Regulator (LDO)/Load Switch (LSW) Features and Benefits LDO/LSW Simplified Block Diagram LDO/LSW Active-Discharge Resistor LDO/LSW Soft-Start Load Switch Configuration Applications Information Input Capacitor Selection Output Capacitor Selection Detailed Description—I2C Serial Communication General Description Features I2C Simplified Block Diagram I2C System Configuration I2C Interface Power I2C Data Transfer I2C Start and Stop Conditions I2C Acknowledge Bit I2C Slave Address I2C Clock Stretching I2C General Call Address I2C Device ID I2C Communication Speed I2C Communication Protocols Writing to a Single Register Writing Multiple Bytes to Sequential Registers Reading from a Single Register Reading from Sequential Registers Engaging HS-Mode for Operation up to 3.4MHz Register Map MAX77659 Register Details INT_GLBL0 (0x00) INT_GLBL1 (0x04) ERCFLAG (0x05) STAT_GLBL (0x06) INTM_GLBL1 (0x08) INTM_GLBL0 (0x09) CNFG_GLBL (0x10) CNFG_GPIO0 (0x11) CNFG_GPIO1 (0x12) CID (0x14) CNFG_WDT (0x17) INT_CHG (0x01) STAT_CHG_A (0x02) STAT_CHG_B (0x03) INT_M_CHG (0x07) CNFG_CHG_A (0x20) CNFG_CHG_B (0x21) CNFG_CHG_C (0x22) CNFG_CHG_D (0x23) CNFG_CHG_E (0x24) CNFG_CHG_F (0x25) CNFG_CHG_G (0x26) CNFG_CHG_H (0x27) CNFG_CHG_I (0x28) CNFG_SBB0_A (0x29) CNFG_SBB0_B (0x2A) CNFG_SBB1_A (0x2B) CNFG_SBB1_B (0x2C) CNFG_SBB2_A (0x2D) CNFG_SBB2_B (0x2E) CNFG_SBB_TOP (0x2F) CNFG_SBB_TOP_B (0x30) CNFG_LDO0_A (0x38) CNFG_LDO0_B (0x39) Typical Application Circuits Typical Applications Circuit Ordering Information Revision History