Flyback and SEPIC controller eliminates the need for a current sense resistor
24-04-2017 |
Linear
|
Power
Linear Technology’s new LTC1871X is a wide input range, current mode, boost, flyback or SEPIC controller that drives an N-channel power MOSFET and requires few external components. Intended for low to medium power applications, it eliminates the need for a current sense resistor by utilizing the power MOSFET’s on-resistance, thereby maximizing efficiency. The device’s design is optimized for high temperature environments up to 175°C.
It’s 2.5V to 36V input voltage range is ideal for high temperature applications such as oil exploration drilling equipment with power sources ranging from 3V to 36V. The electrical parameters are 100% tested at 175°C, offering a VREF accuracy of ±2% over the entire –40C to 175C temperature range. The flexibility for use in boost, SEPIC or flyback topologies is ideal for a wide range of battery-powered applications commonly found in downhole drilling applications. The device’s Burst Mode operation offers low quiescent current, well suited for applications that require extended operating battery life. Specialized Cu/Ni/Au bond pad plating ensures long life in high temperature environments while a tiny MSOP-10 package offers a highly compact solution footprint.
By Electropages
Electropages is a trusted source of news and insights from the global electronics industry. With a dedicated team of experts and editors, Electropages delivers in-depth articles, product updates, and market trends across sectors such as embedded systems, IoT, connectors, and power solutions. Our mission is to empower engineers and professionals with the knowledge they need to innovate and succeed in a rapidly evolving technological landscape.