TEA2019 Datasheet (ST Microelectronics) - CURRENT MODE SWITCHING POWER SUPPLY CONTROL CIRCUIT

TEA2019, CURRENT MODE SWITCHING POWER SUPPLY CONTROL CIRCUIT

The TEA2019 is an 14-pin DIP low cost integrated circuit designed for the control of switch mode power supplies.

It has the same basic functions as the TEA2018Abut with synchronization capability by internal PLL.

It is particularly suitable for applications where oscillator synchronization is requir

TEA2019 CURRENT MODE SWITCHING POWER SUPPLY CONTROL CIRCUIT .

DIRECT DRIVE OF THE EXTERNAL SWITCHING TRANSISTOR POSITIVE AND NEGATIVE OUTPUT CURRENTS UP TO 0.5A CURRENT LIMITATION TRANSFORMER DEMAGNETIZATION AND POWER TRANSISTOR SATURATION SENSING FULL OVERLOAD AND SHORT-CIRCUIT PROTECTION PROPORTIONAL BASE CURRENT DRIVING LOW STANDBY CURRENT BEFORE STARTING (1.6mA) SYNCHRONIZATION CAPABILITY WITH INTERNAL PLL THERMAL PROTECTION Due to its current mode regulation, the TEA2019

TEA2019 Features

* : High stability regulation loop. Automatic input voltage feed-forward in discontinuous mode fly-back. Automatic pulse-by-pulse current limitation. Typical applications : Video Display Units, TV sets, typewriters, micro-computers and industrial applications. For more details, see application note AN