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MAX77651 Dataheets PDF



Part Number MAX77651
Manufacturers Maxim Integrated
Logo Maxim Integrated
Description Ultra-Low Power PMIC
Datasheet MAX77651 DatasheetMAX77651 Datasheet (PDF)

Click here for production status of specific part numbers. MAX77650/MAX77651 EVALUATION KIT AVAILABLE Ultra-Low Power PMIC with 3-Output SIMO and Power Path Charger for Small Li+ General Description The MAX77650/MAX77651 provide highly-integrated battery charging and power supply solutions for low-power wearable applications where size and efficiency are critical. Both devices feature a SIMO buck-boost regulator that provides three independently programmable power rails from a single inductor .

  MAX77651   MAX77651


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Click here for production status of specific part numbers. MAX77650/MAX77651 EVALUATION KIT AVAILABLE Ultra-Low Power PMIC with 3-Output SIMO and Power Path Charger for Small Li+ General Description The MAX77650/MAX77651 provide highly-integrated battery charging and power supply solutions for low-power wearable applications where size and efficiency are critical. Both devices feature a SIMO buck-boost regulator that provides three independently programmable power rails from a single inductor to minimize total solution size. A 150mA LDO provides ripple rejection for audio and other noise-sensitive applications. A highly configurable linear charger supports a wide range of Li+ battery capacities and includes battery temperature monitoring for additional safety (JEITA). The devices include other features such as current sinks for driving LED indicators and an analog multiplexer that switches several internal voltage and current signals to an external node for monitoring with an external ADC. A bidirectional I2C interface allows for configuring and checking the status of the devices. An internal on/off controller provides a controlled startup sequence for the regulators and provides supervisory functionality when the devices are on. Numerous factory programmable options allow the device to be tailored for many applications, enabling faster time to market. Simplified Application Circuit VBUS + CHGIN BATT IN_SBB SYS VSYS GND TBIAS THM IN_LDO SBB0 SBB1 SBB2 1.5µH LXA LXB BST PGND GPIO VIO LDO SYS MAX77650 LED0 LED1 LED2 nEN SDA SCL nRST nIRQ PWR_HLD AMUX *PULLUP RESISTORS NOT DRAWN 2.05V 1.2V 3.3V SYSTEM RESOURCES GPIO 1.85V SDA SCL nRST nIRQ PWR_HLD AMUX VIO/Power * * PROCESSOR * * ADC INPUT Benefits and Features ●● Highly Integrated • Smart Power Selector™ Li+/Li-Poly Charger • 3 Output, Single-Inductor Multiple-Output (SIMO) Buck-Boost Regulator • 150mA LDO • 3-Channel Current Sink Driver • Analog MUX Output for Power Monitoring ●● Low Power • 0.3μA Shutdown Current • 5.6μA Operating Current (3 SIMO Channels + LDO) ●● Charger Optimized for Small Battery Size • Programmable Fast-Charge Current from 7.5mA to 300mA • Programmable Battery Regulation Voltage from 3.6V to 4.6V • Programmable Termination Current from 0.375mA to 45mA • JEITA Battery Temperature Monitors Adjust Charge Current and Battery Regulation Voltage for Safe Charging ●● Flexible and Configurable • I2C Compatible Interface and GPIO • Factory OTP Options Available ●● Small Size • 2.75mm x 2.15mm x 0.7mm WLP Package • 30-Bump, 0.4mm-Pitch WLP, 6x5 Array • Small Total Solution Size (19.2mm2) Applications ●● Bluetooth Headphones/Hearables ●● Fitness, Health, and Activity Monitors ●● Portable Devices ●● Internet of Things (IoT) Ordering Information appears at end of data sheet. Smart Power Selector is a trademark of Maxim Integrated Products, Inc. 19-8550; Rev 7; 9/18 MAX77650/MAX77651 Ultra-Low Power PMIC with 3-Output SIMO and Power Path Charger for Small Li+ TABLE OF CONTENTS General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Benefits and Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Simplified System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electrical Characteristics—Top Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Electrical Characteristics—Global Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Electrical Characteristics—Smart Power Selector Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Electrical Characteristics—Adjustable Thermistor Temperature Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Electrical Characteristics—Analog Multiplexer and Power Monitor AFEs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Electrical Characteristics—SIMO Buck-Boost . . . . . . . . . . . . . . . . . . . . . . . . .


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