High input voltage isolated flyback DC / DC controller LT3748H

Linear Technology Corporation (Linear Technology CorporaTIon) Release high input voltage isolated flyback DC / DC controller LT3748H, guaranteed junction temperature up to 150 ° C Operating. This device greatly simplifies the isolated DC / DC converter design, since the output voltage is sensed from the primary side to the flyback signal, so no optical isolator, third winding or a transformer to achieve a feedback signal. LT3748 operates from an input voltage range of 5V to 100V, and drives an external N-channel power MOSFET, a making it ideal for a wide variety of automotive, industrial, telecommunications and data communications applications. Controls the switch circuit LT3748 boundary mode, current mode, so that the entire voltage to achieve ± 5% of the typical load and temperature adjustment range. The same function as compared to the continuous conduction mode design, the boundary mode also allows use of a smaller transformer. Output voltage is easily set by the ratio of two external resistors and the transformer turns. Data indicated in the table available in several ready-made transformer can be used for a variety of applications. High level of integration and the use of boundary mode operation provides a simple application solutions for the problem of isolated power traditionally difficult to solve. Other features include a low-dropout regulator IC power, programmable soft-start, undervoltage lockout, adjustable current limit and output voltage temperature compensation. LT3748H a small MSOP-16 package, but in addition to the four pins to achieve additional high voltage pin spacing. One thousand approved purchase price of $ 3.71 per tablet. Summary: LT3748H · Guaranteed to operate in the junction temperature to -40 ° C and 150 ° C · VIN range 5V to 100V · No optical isolator or transformer third winding of Feedback · Drive external N-channel power MOSFET · Current Mode Control · Boundary mode operation · VOUT set by two external resistors * Use ready-available transformer Programmable soft-start · Programmable undervoltage lockout Output voltage temperature compensation technology zone Active load for high voltage test DC voltage doubling boosting circuit diagram (CD4069 / LTC3786 / capacitive voltage doubling boosting circuit) DC voltage doubling rectification circuitry (multivibrator circuit / time-base circuit the NE555 / transformer) Encyclopedia circuit diagram of the AC to DC (inverter / boost power AC / DC converter) 48v 12v converter circuit diagram of a switch (switch 12v 48v five converter Detailed circuit schematics)

Our other product:

Professional lightning protection system for Tower	Professional FM Radio Station Equipment Package	FMUSER FU-1000C 1000W FM Transmitter With USB Audio Input Interface
FMUSER 200W FM Radio Broadcasting Package	Hotel IPTV Solution	FMUSER FSN-1000T V5.0 1KW FM Radio Broadcast Transmitter