Linear Technology unveiled the LTC3330, a complete regulating energy harvesting solution that delivers up to 50 mA of continuous output current to extend battery life when harvestable energy is available. The IC requires no supply current from the battery when providing regulated power to the load from harvested energy and only 750 nA operating when powered from the battery under no-load conditions.
The device integrates a high-voltage energy harvesting power supply, plus a synchronous buck-boost DC/DC converter powered by a primary cell battery to create a single non-interruptible output for energy harvesting applications such as those in wireless sensor networks.
The energy harvesting power supply, consisting of a full-wave bridge rectifier accommodating AC or DC inputs and a high-efficiency buck converter, harvests energy from piezoelectric (AC), solar (DC) or magnetic (AC) sources.
The primary cell input powers a buck-boost converter that operates from 1,8 V to 5,5 V at its input when harvested energy is not available to regulate the output whether the input is above, below or equal to the output. The LTC3330 automatically transitions to the battery when the harvesting source is no longer available.
The chip’s energy harvesting inputs operate from a voltage range of 3 V to 19 V, AC or DC, making it ideal for a wide array of piezoelectric, solar or magnetic energy sources. Its input under-voltage lockout threshold settings are programmable between 3 V and 18 V, enabling the application to operate the energy harvesting source at its peak power transfer point.
Other features include programmable DC/DC and LDO output voltages, buck-boost peak current limits, supercapacitor charger/balancer and an input protective shunt (up to 25 mA at VIN ≥ 20 V). The LTC3330EUH is available in a 5 x 5 mm QFN package. An industrial temperature grade version, the LTC3330IUH, is also available. All versions are available from stock.
High reliability memories Altron Arrow
DSP, Micros & Memory
Infineon’s mil-temp memories offer a wide selection of volatile and non-volatile memories for applications that meet QML-Q certifications and offer support for mil-aero applications.
Read more...Reference board for cardio monitoring Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The STDES-ESP01 reference board from STMicroelectronics demonstrates the capability of the ST1VAFE6AX and ST1VAFE3BX biosensors to detect ECG and SCG signals.
Read more...ST MCUs extend ultra-low power innovation Altron Arrow
DSP, Micros & Memory
STMicroelectronics has introduced new STM32U3 microcontrollers with cutting-edge power-saving innovations that ease deployment of smart connected tech, especially in remote locations.
Read more...Multicell battery monitoring Altron Arrow
Power Electronics / Power Management
The LTC6811 from Analog Devices is a multicell battery stack monitor that measures up to 12 series connected battery cells with a total measurement error of less than 1,2 mV.
Read more...A new era in modular I/O solutions Rugged Interconnect Technologies
Analogue, Mixed Signal, LSI
Aerospace and defence system designers are demanding scalable and high-performance I/O solutions and while traditional mezzanine standards have proven reliable, they often fall short of meeting modern bandwidth, size, and flexibility requirements.
Read more...High voltage instrument op-amp iCorp Technologies
Analogue, Mixed Signal, LSI
The SGM621B is a high accuracy, high voltage instrumentation amplifier, which is designed to set any gain from 1 to 10 000 with one external resistor.
Read more...Innovative satellite navigation receiver Altron Arrow
Telecoms, Datacoms, Wireless, IoT
STMicroelectronics has released an innovative satellite navigation receiver to democratise precise positioning for automotive and industrial applications.
Read more...LED driver for industrial power supply indication Altron Arrow
Editor's Choice Circuit & System Protection
A simple and small solution for driving an LED to provide visual feedback in the presence/absence of a system’s power using a chip not originally designed for this purpose.
Read more...High-voltage step-down DC-DC converter Altron Arrow
Power Electronics / Power Management
The MAX17793 is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operating over an input voltage range of 3 to 80 V.
printer friendly version