Power Controllers

Power Controllers suit telecom and network applications.
Power Controllers

Power Controllers suit telecom and network applications.

Operating from -19 to -80 V with 100 V surge protection, hot-swap Models MIC2589 and MIC2595 control external N-channel MOSFET to provide inrush-current limiting and over-current protection. Units allow safe insertion/removal of line cards from live -48 V backplanes. Available in 14-pin, SOIC packages, controllers/sequencers feature separate Power-is-Good control outputs for multiple dc-dc...

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DC/DC Buck Controllers achieve up to 96% power efficiency.
Power Controllers

DC/DC Buck Controllers achieve up to 96% power efficiency.

Packaged in 16-pin, TSSOP PowerPad(TM) package, TPS40070 and TPS40071 synchronous ICs include voltage feed forward topology and support input voltages from 4.5-28 V. They leverage proprietary Predictive Gate Drive(TM) technology and facilitate circuit design in non-isolated power systems. User-programmable power-supply features include under-voltage lockout, soft-start, high-side short-circuit...

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Power Over Ethernet Controllers work autonomously.
Power Controllers

Power Over Ethernet Controllers work autonomously.

Compliant with IEEE 802.3af specification, Models LTC4258/9 are quad PoE controllers that provide autonomous operation for power sourcing equipment, sequencing through required tasks without processor intervention. Model LTC4258 implements 802.3af detection and classification, current limiting for normal and fault operation, and DC disconnect detection. Model LTC4259 adds ability to implement AC...

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Power Controllers

Synchronous Step-Down Controllers suit 12 V applications.

Available in 10-pin MSOP package, Models SP6134 and SP6137 offer frequencies of 600 and 900 kHz, respectively, and include all provisions for loop stability and soft-start. PWM architecture drives dual NFET switches with efficiencies up to 94%. Controllers feature programmable output voltage down to 0.8 V and maintain 1.5% accuracy over wide range of line, load, and temperature conditions....

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Power Supply Controllers track up to 5 supplies.
Power Controllers

Power Supply Controllers track up to 5 supplies.

Models LTC2921 and LTC2922 utilize N-channel MOSFETs to assure that multiple power supplies ramp up at same time and same rate, protecting ASICs, processors, and other circuitry from lock-up or more severe damage. Following successful ramp-up, remote sense switches allow regulators to close loop around MOSFETs and compensate for voltage drop. Adjustable electronic circuit breaker monitors primary...

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Controller tracks and sequences power supply.
Power Controllers

Controller tracks and sequences power supply.

Model LTC2923, in tiny 10-lead MSOP package, controls power-supply start up and shut down by introducing currents into feedback nodes. By properly selecting resistors, supply can be configured to ramp-up and ramp-down together, with options for fixed voltage offsets, time delays, or different ramp rates. Unit allows additional supply to be controlled with FET for systems that require tracking of...

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PWM Controller suited for DC/DC power converters.
Power Controllers

PWM Controller suited for DC/DC power converters.

Low-profile (1 mm) 6-pin ThinSOT(TM) PWM LTC3803 current mode DC/DC controller works with flyback power supplies with 1-25+ W of output power. With adjustable slope compensation and 40 Â-µA start-up current, product offers integrated soft-start function and can be powered with inputs from 10-100 V through resistor. Unit operates at constant 200 kHz frequency, provides ±1.5% output...

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Solid State Relays offer various ratings and control modes.
Power Controllers

Solid State Relays offer various ratings and control modes.

SSR Series Power Controllers feature ruggedized construction, touch safe exterior, back-to-back SCR design, ambient ratings of 40Â-ºC, and DIN rail mounting. Products are rated for 25, 50, and 75 A at voltages up to 600 Vac and provide zero-fired single phase control with control signals of 4.5-32 Vdc, 24-265 Vac, or 24-190 Vdc. Other features include self-lifting terminals, LED status...

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Power Controllers

Hot Swap Controller eliminates need for OR-ing diodes.

Able to provide protection for redundant -48 V telecom power supplies, TPS2350 hot swap power manager allows precise control of current and voltage during turn-on and operation. Unit operates with supply voltages from -12 to -80 V, withstands spikes to -100 V, and uses 3 power field effect transistors. Programmable features include undervoltage and overvoltage limits, circuit breaking, fault...

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Power Controllers

Power Controllers work with PLCs, PCs, and SCADA systems.

Solid-state contactors accept 4-20 mA signal and convert it into time proportional output. With high-speed cycling capability of twice per second and set-point resolution of 0.5 sinewave, products reduce thermal stress and include finger-safe caged terminals, integral heat sink, and universal mounting bracket for DIN-rail or bolt-on installations. Products are available in single-phase models of...

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