مدار مجتمع (آی سی) آی‌سی مدیریت توان (پی‌ام‌آی‌سی) رگولاتور کاربرد ویژه

Product Attributes

Introduction

The EM8900 is an integrated ultra-low power DCDC converter specifically designed for the Thermal Electrical Generators (TEG). The device starts and operates autonomously with an input voltage of as low as 5mV in the μW to mW range. No additional supply voltage is required to start the DCDC. This ultra-low voltage operating level allows using a TEG with a low Seebeck coefficient, thus reducing its mechanical size and cost. The boost converter is inductive and uses a standard transformer, such as the LPR6235 series by Coilcraft. The EM8900, coupled with the EM8502, offers a complete power management solution including the thermal energy harvesting, the energy storage supervising and the supply outputs controlling.

The EM8900 is an ultra-low voltage DCDC converter optimized for thermal electrical energy harvesting applications. An external transformer is used to boost the input voltage. The pin VSUP delivers the output voltage supply to the application. There is no limiter or regulator integrated in the device. The load, connected to VSUP, regulates and limits that voltage. The input pin DIS, allows stopping the DCDC boost converter when the maximum voltage allowed on VSUP is reached. The EM8900 is designed to interface with the EM8502. In such a combination the EM8502 regulates and limits the DCDC output voltage automatically without additional external control.

Features

• Ultra-low voltage DCDC operating and starting-up down to Vin = 5mV without help from external supply
• Optimized for low-cost and small TEG’s
• Compatible with standard transformer from the market
• Adapted to the EM8502 for a complete power management solution

Applications

• Thermal electrical generator harvesting
• Wearable devices supplied by the body heat
• Beacons and wireless sensor networks
• Industrial and environmental monitoring
• Battery operated platforms