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Overview
| Topology | Buck Converter |
| Input voltage | 90-265 V |
| Switching frequency | 65-89 kHz |
| Output 1 | 12 V / 0.55 A |
| IC revision | A |
Description
Demonstration circuit 2337A is an offline isolated flybackconverter featuring LT®8315. The demo board outputs 12V,and maintains tight regulation with a load current from4mA to 0.55A. It is optimized to operate over a wide ACinput voltage range (90VAC to 265VAC, 47Hz to 63Hz).Output voltage accuracy stays within ±5% over the wholeinput voltage and load range.The LT8315 is a high voltage flyback converter with integrated630V/300mA switch. No opto-isolator is needed forregulation. The part samples the output voltage from theisolated flyback waveform appearing across a third windingon the transformer. Quasi-resonant boundary mode operation improves load regulation, reduces transformersize, and maintains high efficiency. The LT8315 is availablein a thermally enhanced 20-pin TSSOP package with fourpins removed for high voltage spacing.The LT8315 data sheet gives a complete description ofthe part, operation and application information. The datasheet must be read in conjunction with this quick startguide for demo circuit 2337A.
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | RDC max.(Ω) | fres(MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TIS Radial Leaded Wire Wound Inductor, 330 µH, 0.65 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TIS Radial Leaded Wire Wound Inductor | Inductance330 µH | Rated Current0.65 A | Saturation Current0.45 A | DC Resistance0.83 Ω | Self Resonant Frequency3.1 MHz | MountTHT |