P20F BM Flyback DC-DC Module Catalog
Description:
1. Champs-Tech Main Module contains the planar transformer and incorporated power components to complete a high efficiency, robust, low component count and low-cost DC-DC converter. It is intended to be supplied with a companion Base-Board in order to facilitate evaluation. Additional filtering and protection circuit and components may be added.
2. Champs-Tech will build the module for any customer in any mechanical configuration that works best for the customer – embedded or discrete – open or encapsulated.
3. Champs-Tech will supply the planar transformer.
4. Champs-Tech will configure any possible options
Input Voltage Range
Output Voltage – Single or Multiple.
Output Power
Discrete planar turns ratios and size.
5. Integer Turns available from
1T to 20T. Can be used as Primary or Secondary. Mechanical configuration and
outline allow for a “flex” arrangement. Contact factory for information on any
power topology design.
6. All designs can be supplied with planar windings embedded in
the pcb of the Main Module of the converter. Heat Sink and installed power
components SM assembly and installation and incorporation into a module are also available.
7. The heart of the circuit is the LT3748 IC and extreme “low-leakage” inductance planar magnetics which maximizes the power capability of an external MOSFET switch while ensuring optimum efficiency. The output voltage is sampled from the reflected flyback waveform at the Vds node and is programmed with 1 resistor, so it doesn’t require an opto-isolator for regulation.
8. The converter offers features based on the LT3748 function and features inherent to the IC: - positive logic (Remote on/off), over current, over temperature & under voltage protection.
9. Additional features of the LT3748 and circuit provide input under voltage lockout. The unit will shut down when the input voltage drops below the threshold programmed.
10.Modules provide voltage isolation from input to output of up to 2250Vdc & can operate over the ambient Temperature Range from -40°C to +85°C.
LT3748 Product Page
http://www.analog.com/en/products/power-management/switching-regulators/flyback-forward-isolated-controllers/lt3748.html#product-overview
