EM8500
Power Management Controller with Single-cell Solar Harvesting.
Eco-Boost - Maximize Harvesting Efficiency
The EM8500 is an integrated power management solution for low power applications. It is specifically designed for efficient operation with a variety of DC harvesting sources including thermal electric generators (TEG) or photovoltaic (solar) sources in the μW to mW range.
The device is designed to speed-up system start-up time when the main energy storage element (aka Long Term Storage – LTS) is completely discharged or insufficiently charged to supply the application, by using a secondary energy storage element (Short Term Storage – STS). When using a non-rechargeable primary battery the EM8500’s onboard PMU offers a mechanism to extend battery life when assisted by a harvesting element.
Fast start up from empty energy storage
Optimized for indoor low light conditions
Optimized for single solar cell
No external component needed
Features
- Flexible operation with different energy banks
- Primary cell battery
- Secondary cell battery
- Capacitors (gold-cap, super-cap)
- Ultra-low power DCDC boost converter with very high efficiency
- MPPT based on open voltage ratio
- Operating mode minimum voltage VDD_HRV = 100 mV (typical)
- Operating mode minimum power: PIN = 1µW (typical)
- Quiescent current: IQ = 125 nA
- Cold-start minimum voltage: VIN = 300 mV
- Cold-start minimum power: PIN = 3 µW (typical)
- Fast start-up on any energy storage
- Dual energy storage elements
- Power management control
- Multiple independent supply outputs
- Sleep mode and wake-up functions
- User programmable under-voltage and over-voltage levels
- Limited external components
- Device configurations are stored in on-chip E2PROM
- Dynamic configuration through a SPI or I2C interface
- Extended power management status
- Battery on protection mode
- LTS/STS connection status
- Minimum/Maximum voltage warning
- USB connected
Technical Resources
Download product data sheets, fact sheets, and development resources or get expert support to accelerate your integration.
Application Areas
Discover where our technology fits best and how it powers innovative solutions across multiple sectors.
- Energy harvesting equipped platforms
- Solar charging
- Thermo-electrical generator harvesting (TEG)
- Electronic shelf labels
- Wearable systems
- Beacons and wireless sensor network
- Industrial and environmental monitoring
- Battery operated platform
Additional Downloads
EM Solar Cell Guide
This document outlines the main solar cell characteristics and parameters. A selection guide is provided to assist
with proper solar cell selection as a function of application requirements.
Download the EM Solar Cell Guide
Application notes
Get Help & Support
EM Microelectronic provides two development tools to easily implement intelligent powered application.
The EMDVK8500 allows to control all the power management aspects around the EM8500 helping in setting up the application.
The EMEVB8500 is a simpler but versatile board design for a quick and simple application set-up. Whereas it doesn’t offer the complete measurement set of the EMDVK8500 it shares with it an easy usage for a fast application prototyping.
The configuration of the EM8500 can be performed through its wizard.
Support
