NXP PWM secondary side controller TEA1995T, GreenChip dual synchronous rectifier controller. TEA1995T is the first product in the new generation of synchronous rectifier (SR) controller IC series suitable for switching power supplies. It adopts an adaptive gate driver and can achieve high efficiency under any load.
TEA1995T is a controller IC specifically designed for synchronous rectification on the secondary side of resonant converters. This synchronous rectifier controller supports a wide range of power supply voltages (4.5-38V) and is equipped with two driver stages for SR MOSFETs, which can rectify the output of the secondary transformer winding. The two gate driver stages also have independent sensing inputs and work independently of each other.
TEA1995T is suitable for resonant power supply. In such applications, this SR controller can drive two external synchronous rectifier MOSFETs, replacing the voltage rectifying diodes on the secondary winding of the transformer.
TEA1995T is manufactured using SOI technology and can be used for all power supplies that require high efficiency, including power supplies for PCs, adapters, televisions, and servers. In addition, consumers can use TEA1995T in conjunction with SR MOSFETs located on the low side in multi output flyback converters.
NXP PWM secondary side controller TEA1995T | GreenChip dual synchronous rectifier controller adopts SO8 packaging. The following is the product packaging diagram and framework:
NXP PWM secondary side controller TEA1995T, GreenChip dual synchronous rectifier controller efficiency characteristics:
- Adaptive gate drive, capable of achieving maximum efficiency under any load
The power supply current during no-load operation is less than 200 μ A
NXP PWM secondary side controller TEA1995T, GreenChip dual synchronous rectifier controller application characteristics:
- Wide range of power supply voltage (4.5 V~38 V)
SO8 Package LLC Resonant Double Synchronous Rectification
Synchronous rectification of multi output flyback converter
Logic level SR MOSFET supports 5V operation
Differential input detection of drain and source voltages for each SR MOSFET
NXP PWM secondary side controller TEA1995T, GreenChip dual synchronous rectifier controller control characteristics:
- SR control without shortest connection time
Adaptive gate drive, can quickly turn off at the end of conduction
Active gate pull-down supports undervoltage locking (UVLO)
