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Analog Devices LT4322 | Demoboard DC3117A
Evaluating the LT4322, Floating, High-Voltage Active Rectifier Controller PLEASE SEE
Overview
| Topology | Other Topology |
Description
Demonstration circuit 3117A features the floating, high voltage active rectifier controller LT4322, which is suitable for applications requiring high voltage line rectification with DC outputs up to 170V. While components were chosen to optimize performance at 60Hz, the LT4322 is capable of operating at up to 100kHz.The LT4322 drives an N-Channel MOSFET to perform half-wave rectification functionally like a diode but with much lower power dissipation. This topology eases thermal constraints and increases the usable output voltage. An N-Channel topology has multiple benefits over a P-Channel topology, including lower RDS(ON), a smaller footprint, lower cost, and a wider selection of MOSFETs.Only a few essential components are required to operate the LT4322 as a half-wave rectifier: a single N-Channel MOSFET (M1), a reservoir capacitor (C1B), an AC-smoothing capacitor (C2), a gate capacitor (CG1), and in applications where the peak-to-peak input voltage exceeds 60V, an N-Channel depletion mode MOSFET (M2).
Features
- Fully featured evaluation board for the LT4322
- High voltage half-wave rectification
- AC Diode replacement
Typical applications
- Single-Phase, 3-Phase, and 6-Phase Bridge Rectifiers, Off-Line Active Bridge Rectifier
- Automotive Alternator Bridge Rectifiers
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(mm) | f(mm) | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | IV typ.(mcd) | VF typ.(V) | Chip Technology | 2θ50% typ.(°) | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | DF(%) | RISO | Ceramic Type | W(mm) | H(mm) | Fl(mm) | Packaging | SamplesAvailability & Sample | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 2 mm, – | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Length2 mm | – | Dominant Wavelength [typ.]525 nm | Emitting ColorGreen | Peak Wavelength [typ.]515 nm | Luminous Intensity [typ.]450 mcd | Forward Voltage [typ.]3.2 V | Chip TechnologyInGaN | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | Size0805 | Operating Temperature -40 °C up to +85 °C | – | – | – | Width1.25 mm | Height0.7 mm | – | PackagingTape and Reel | –Check availability | |||
SPECWCAP-CSGP MLCCs 16 V(DC), 2 mm, – | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | Length2 mm | – | – | – | – | – | – | – | – | Capacitance10 nF | Capacitance±10% | Rated Voltage16 V (DC) | Size0805 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor3.5 % | Insulation Resistance10 GΩ | Ceramic TypeX7R Class II | Width1.25 mm | Height0.8 mm | Pad Dimension0.5 mm | Packaging7" Tape & Reel | –Check availability | ||||
 | SPECWA-SNSR Self-Retaining Spacer, 6.4 mm, 4.8 mm | Simulation– | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SNSR Self-Retaining Spacer | Length6.4 mm | Drilling in Panel4.8 mm | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -30 °C up to +85 °C | – | – | – | – | – | – | – | –Check availability |
Availability Forecast
WE item number Packaging unitsLead time
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| Expected Availability | Opening inventory | Quantity |
|---|---|---|
| Current Availability | – | – |
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