LM3844A - HTC

LM3844A (LM3842A - LM3845A) CURRENT MODE PWM CONTROLLER

LM3842A/3A/4A/5A D LM3842A/3A/4A/5A N The LM3842A is fixed frequency current-mode PWM controller. It is specially designed for Off-Line and DC-to-DC converter applications with minimal external components. This integrated circuit features a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, cu.

Features

● Automatic feed forward compensation
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● Optimized for offline converter Double pulse suppression Current mode operation to 500 KHz High gain totem pole output Internally trimmed bandgap reference Compen sation Voltage Feedback Current Sense RT/CT LM3842A/3A/4A/5A 8 SOP/ 8 DIP PIN Configulation 1 2 3 4 8 7 6 5 VREF Vcc OUTPUT GND
● Undervoltage lockout with hysteresis
● Low start up current :＜ 0.3 mA ORDERING INFORMATION Device Package 8 SOP 8 DIP DESCRIPTION LM3842A/3A/4A/5A D LM3842A/3A/4A/5A N The LM3842A is fixed frequency current-mode PWM controller. It is specially designed f.