Datasheet ACT81460 (Active-Semi)

ACT81460 Rev 1.0, 18-Dec-2018 Low Power PMIC With Integrated Linear Charger BENEFITS and FEATURES APPLICATIONS
•
Wide Input Voltage Range
• Consumer or medical wearables. ◦ 4V to 5.5V Input with 20V Protection • Battery operated personal devices. ◦ 2.7V to 4.5V Battery Range • IOT Modules. •
Complete Integrated Power Solution
• Cameras & DVRs ◦ Two 0.4A DC/DC Step-Down (Buck) Regulators ◦ One 0.4A Buck-Boost Regulator
GENERAL DESCRIPTION
◦ Three 100mA LDOs ◦ Three 100mA Load Switches The ACT81460 is a low power PMIC (power ◦ One High Voltage Boost – 20V management integrated circuit) that is specifically ◦ 38mA Constant Current Sink LED Drive designed for battery operated systems and is suitable for a variety of processor applications. It features very ◦ 0.8A Linear Charger low standby current that prolongs battery life between •
Optimized Power for Portable Applications
charges, especially in applications requiring long stand ◦ Active Power-Path Linear Charger (APLC) by or low power mode durations. It is a highly efficient ◦ Multiple Sleep Modes PMIC that also enhances battery run time during normal ◦ Active-COT for Very Low Quiescent Current operating modes. The number of regulators that can be ◦ 6µA Quiescent Current with 6 regulators and 3 turned OFF or left ON during low power modes is load switches running configurable and offers users flexibility to optimize •
Space Savings
system efficiency. ◦ Fully Integrated The IC includes four DC/DC converters with integrated ◦ Maximum Fsw = 3MHz for small size power FETs, three low-dropout regulators (LDOs), and ◦ Integrated Sequencing three load switches. Two of the DC/DC converters are •
Easy System Level Design
step down buck regulators, one is a step up/down buck- ◦ Configurable Sequencing boost regulator and the fourth is a high voltage step-up ◦ Seamless Sequencing with External Supplies boost regulator capable of providing up to 20V. Each ◦ Programmable Reset and Power Good GPIOs regulator can be configured for a wide range of output voltages through the I2C interface. •
Easy System Interface and Monitoring
◦ Four General Purpose I/O (4 X GPIOs) The ACT81460 is highly configurable. It offers configurable power sequencing combinations, startup ◦ I2C Serial Interface timing, output voltage settings, fault monitoring, ◦ Reset and Power Sequencing Control interrupt control, programmable GPIO options, and ◦ Interrupt Controller and fault monitoring many more features. The device is pre-configured at the ◦ Two configurable low power modes – SLEEP & factory with default configuration settings that can be DPSLP mode. further adjusted though firmware via the standard I2C ◦ Watchdog Supervision interface to suit individual system requirements. The IC ◦ Hard/Soft Reset Functions also features the ability to sequence external power ◦ Multi-function Push button (PB) interface. supply rails as part of the power up sequence by using •
Highly Configurable
GPIOs. ◦ uP interface for status and report and controlla- bility ◦ Flexible Sequencing and Fault Thresholds ◦ Programmable GPIO Functions ◦ GPIO/LED Current Sinks ◦ Push Button Functionality (PB) ◦ Contact Active Semi for PWREN Mode Startup
Innovative PowerTM www.active-semi.com ActiveSwitcher TM is a trademark of Active-Semi Copyright © 2017 Active-Semi, Inc.
1