The LT®8309 is a secondary-side synchronous rectifier driver that replaces the output rectifier diode in a flyback topology. By replacing the diode with a N-channel MOSFET, applications are no longer restricted by the heat constraints of the output diode. The IC replicates the behavior of a diode by sensing the drain-to-source voltage to determine when the c.
n Works with DCM and BCM/CrCM Conduction Mode Flyback Topologies
n VCC: 4.5V to 40V n Supports Up to 150V MOSFETs n 26ns Turn-Off Propagation Delay n Accurate Minimum On and Off Timers for Reliable
Operation n Adjustable and Accurate Trip Point: +5mV to
–30mV n 1Ω Gate Driver Pull-Down n SOT-23 5-Lead Package
Applications
n High Output Current Flybacks n High Efficiency Flybacks
Description
The LT®8309 is a secondary-side synchronous rectifier driver that replaces the output rectifier diode in a flyback topology. By replacing the diode with a N-channel MOSFET, applications are no lon.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | LT8300 |
Linear Technology |
100VIN Micropower Isolated Flyback Converter | |
2 | LT8301 |
Linear Technology |
Micropower No-Opto Isolated Flyback Converter | |
3 | LT8302 |
Linear Technology |
Micropower No-Opto Isolated Flyback Converter | |
4 | LT8302 |
Analog Devices |
Micropower No-Opto Isolated Flyback Converter | |
5 | LT8302-3 |
Linear |
Micropower No-Opto Isolated Flyback Converter | |
6 | LT8302-3 |
Analog Devices |
Micropower No-Opto Isolated Flyback Converter | |
7 | LT8303 |
Linear |
Micropower Isolated Flyback Converter | |
8 | LT8304 |
Linear |
Flyback Converter | |
9 | LT8304-1 |
Linear |
Flyback Converter | |
10 | LT8310 |
Linear |
Forward Converter Controller | |
11 | LT8311 |
Linear |
Synchronous Rectifier Controller | |
12 | LT8312 |
Linear |
Boost Controller |