MAX77278EWB+

Click here for production status of specific part numbers. MAX77278 Ultra-Low Power PMIC with 3-Output SIMO, Power Path Charger Optimized for Small Li+, 425mA Current Sink, and 8 GPIOs General Description Benefits and Features The device includes other features such as a programmable current sink that can be used to drive an IR-LED, 8 general-purpose input/output (GPIO) control pins, and a...
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Click here for production status of specific part numbers. MAX77278 Ultra-Low Power PMIC with 3-Output SIMO, Power Path Charger Optimized for Small Li+, 425mA Current Sink, and 8 GPIOs General Description Benefits and Features The device includes other features such as a programmable current sink that can be used to drive an IR-LED, 8 general-purpose input/output (GPIO) control pins, and an analog multiplex (AMUX) output that provides access to useful battery charging signals. A bidirectional I2C interface allows for configuring and checking the status of the device. An internal on/off controller provides a controlled startup sequence for the regulators and provides supervisory functionality when the device is on. Numerous factory programmable options allow the device to be tailored for many applications, enabling faster time to market. ●● Low Power • 0.3μA Standby Current • 16μA Operating Current ●● 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 The MAX77278 provides a highly-integrated battery charging and power supply solution for low-power applications where size and efficiency are critical. The device features a single-inductor multiple-output (SIMO) buckboost regulator that provides three independently programmable power rails from a single inductor to minimize total solution size. A 50mA LDO provides ripple rejection for audio and other noise-sensitive applications. A highlyconfigurable linear charger supports a wide range of Li+ battery capacities and includes battery temperature monitoring for additional safety (JEITA). ●● Flexible and Configurable • I2C-Compatible Interface • Eight GPIOs • Factory OTP Options Available Simplified Application Circuit VBUS + CHGIN BATT GND TBIAS THM 1.5µH LXA LXB BST IN_SBB SYS VSYS IN_LDO SBB0 SBB1 SYSTEM RESOURCES SBB2 PGND MAX77278 nEN * GPIO0 ... * GPIO7 CS_EN SDA SDL nRST nIRQ SDA SCL nRST nIRQ AMUX AMUX *PULLUP RESISTORS NOT DRAWN 19-100167; Rev 3; 11/18 VIO/POWER VIO CS_EN Applications ●● Wearables, Fitness and Health Monitors CS CS_GND ●● Small Size • 3.15mm x 2.15mm x 0.7mm • 35-Bump, 0.4mm-Pitch, 7x5 Ball Array, WLP • Small Total Solution Size (24mm2) ●● Remote Controls, Game Pads, Media Center Controllers LDO SYS ●● Highly Integrated • Smart Power Selector™ Li+/Li-Poly Charger • Three Output, SIMO Buck-Boost Regulator • 50mA LDO with SIMO Fixed Headroom Control • Programmable 250mA to 425mA Current Sink Driver • Analog MUX Output for Power Monitoring • Eight GPIOs (Configured for One-Button Wake-Up and Two-Button Shutdown) * * PROCESSOR * * ADC INPUT ●● Smart Home Automation Pads, Thermostats, BatteryPowered User Interfaces ●● Internet of Things (IoT) Gadgets Ordering Information appears at end of data sheet. Smart Power Selector is a trademark of Maxim Integrated Products, Inc. PDF
Документация на серию MAX77278 

MAX77278-Ultra-Low Power PMIC with 3-Output SIMO, Power Path Charger Optimized for Small Li+, 425mA Current Sink, and 8 GPIOs The MAX77278 provides a highly-integrated battery charging and power su...

Дата модификации: 02.12.2020

Размер: 2.65 Мб

69 стр.

    Публикации 2

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