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TEA2262
TEA2262 SWITCH MODE POWER SUPPLY CONTROLLER FEATURES SUMMARY ■ POSITIVE AND NEGATIVE OUTPUT CURRENT UP TO 1A ■ LOW START-UP CURRENT ■ DIRECT DRIVE OF THE MOS POWER TRANSISTOR ■ TWO LEVELS TRANSISTOR CURRENT LIMITATION ■ DOUBLE PULSE SUPPRESSION ■ SOFT-STARTING ■ UNDER AND OVERVOLTAGE LOCK-OUT ■ AUTOMATIC STAND-BY MODE ■ LARGE POWER RANGE CAPABILITY IN STAND-BY (Burst mode) ■ The capability of working according to the ”masterslave” concept, or according to the ”primary regulation” mode makes the TEA2262 very flexible and easy to use. This is particularly true for TV receivers where the IC provides an attractive and low cost solution (no need of stand-by auxiliary power supply). INTERNAL PWM SIGNAL GENERATOR Figure 1. Package uc d te le so Ob - DESCRIPTION The TEA2262 is a monolithic integrated circuit for the use in primary part of an off-line switching mode power supply using a MOS power transistor. All functions required for SMPS control under normal operating, transient or abnormal conditions are provided. (s) ct s) t( ro P DIP16 (Plastic Package) du o Figure 2. Pin Connections Pr e let o TRANSFORMER DEMAGNETIZATION SENSING INPUT IS 1 16 V CC POWER SUPPLY IN 2 15 V+ POSITIVE OUTPUT STAGE SUPPLY SECONDARY PULSES INPUT POWER TRANSISTOR CURRENT LIMITATION INPUT GROUND I max. 3 14 OUT POWER OUTPUT GND 4 13 GND GROUND GROUND GND 5 12 GND GROUND ERROR AMPLIFIER INPUT (INVERTING) E 6 11 R0 OSCILLATOR RESISTOR ERROR AMPLIFIER OUTPUT S 7 10 C0 OSCILLATOR CAPACITOR OVERLOAD INTEGRATION CAPACITOR C2 8 9 C1 SOFT-START CAPACITOR bs O REV. 2 May 2004 1/13
STM
STMicroelectronics NV
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