LX1810中文资料Legacy Power Management数据手册Microchip规格书

描述 Description

Key Features:Integrated Switching Full-Bridge PWM Drive ArchitectureSingle DC Supply OperationVery Low Output NoiseMaximum Efficiency 90%High Output Integrated DriversPSRR –70dB TypicalDifferential Input To Minimize NoiseExternal Oscillator Synchronization28-Pin SSOP PackageDescriptionThe LX1810 is a Full-Bridge thermo-electric cooler (TEC) controller specifically designed for high performance opto-electronic products where precise temperature control is required. These products tune or stabilize sensitive optical components in applications that include frequency tunable fiber optic lasers, EDFA amplifiers, waveguides and other dense wavelength division multiplexing (DWDM) components. Other applications include microwave transistors in new wireless base-stations.The LX1810 uses highly efficient (>90%) pulse width modulation (PWM) technology, allowing the controller to be conveniently mounted near the TEC without adding heat to the system. The LX1810 operates on a single voltage supply, greatly simplifying supply requirements, with an operating frequency that is high enough to eliminate detrimental thermal stresses to the TEC. The output ripple factor of the system can be maintained well below 10% thus not effecting the performance of delta T control. Utilizing a full-bridge topology, the LX1810 can be used for both heating and cooling operations. The LX1810, when used in conjunction with a temperature sense device, accurately regulates TEC current levels allowing tight control of temperature.Fully integrated FET drivers in a 28-Pin SSOP allows the design of a fully functional TEC controller while minimizing board space.  ROHS