TEA1623P/N1

The TEA1623P/N1 is a kind of switched mode power supply(SMPS) controller IC that operates directly from the rectified universal mains. It includes a high voltage power switch and acircuit for start-up directly from the rectified mains voltage. It is implemented in the high voltage EZ-HV SOI process, combined with a low voltage BICMOS process. The typical applications include adapters, VCD, set-iop box (STB), CD(R), DVD and PC silverbox standby SMPS.

There are some features of TEA1623P/N1 as follows: (1) designed for general purpose supplies; (2) integrated power switch: 6.5 and 650 V; (3) operates from universal AC mains supplies: 80 V to 276 V; (4) adjustable frequency for flexible design; (5) RC oscillator for load insensitive regulation loop constant; (6) valley switching for minimum switch-on loss; (7) frequency reduction at low power output for low standby power: <100 mW; (8) adjustable overcurrent protection; (9) undervoltage protection; (10) temperature protection; (11) short winding protection; (12) safe restart mode for system fault conditions; (13) simple application with both primary and secondary (opto) feedback; (14) available in 8-pin and 16-pin DIP package.

What comes next is about the maximum ratings of TEA1623P/N1. (1): VCC (supply voltage, continuous) is from -0.4 to +40 V; (2): VRC (oscillator input voltage) is from -0.4 to +3 V; (3): VSOURCE (DMOS power transistor source voltage) is from -0.4 to +5 V; (4): VDRAIN (DMOS power transistor drain voltage) is from -0.4 to +650 V; (5): IREG (regulation input current) is 6 mA; (6): IAUG (auxiliary winding input current) is from -10 to +5 mA; (7): Ptot (total power dissipation) is 1.0 W at Tamb<45; (8): Tstg (storage temperature) is from -55 to +150; (9): Tamb (ambient temperature) is -20 to +85; (10): Tj (junction temperature) is from -20 to +145.