NXP PWM Secondary Side Controller TEA1993TSC Product Introduction. TEA1993TS is a new generation synchronous rectifier (SR) controller IC suitable for switching power supplies, which uses adaptive gate drivers to achieve high efficiency under any load.
TEA1993TS is a controller IC specifically designed for synchronous rectification on the backup side of flyback converters. It integrates a sensing stage and a driver stage to drive the SR MOSFET, which rectifies the output of the secondary transformer winding.
TEA1993TS can generate its own power supply voltage for low output voltage battery charging applications or high side rectification applications.
TEA1993TS is made using silicon on insulator (SOI) technology.
TEA1993TS is suitable for flyback power supplies. In such applications, it can drive external synchronous rectification MOSFETs to replace voltage rectification diodes on the secondary winding of transformers.
The NXP PWM secondary side controller TEA1993TSC product is packaged in SOT457:
NXP PWM Secondary Side Controller TEA1993TSC Product Main Features:
- Adaptive gate drive, capable of achieving maximum efficiency under any load
The typical power supply current during no-load operation is below 200 μ A
Operate within a wide output voltage range as low as 0V
Drain sensing pin, capable of handling input voltages up to 120V
Automatic power supply during low output voltage operation
Automatic power supply during high side rectification without the need for auxiliary windings
Using standard and logic level SR MOSFETs for operation
Supports USB BC, USB PD, and Quick Charge applications
TSOP6 package
Adaptive gate drive, can quickly turn off at the end of conduction
Undervoltage lockout (UVLO) with active gate pull-down
