UC3844D8, Контроллер импульсного преобразователя напряжения

Ном. номер: 8001849512
Артикул: UC3844D8
Производитель: Texas Instruments
87 руб.
65 шт. со склада г.Москва
Добавить в корзину 1 шт. на сумму 87 руб.


The UC3844D8 is a current-mode Pulse Width Modulation (PWM) Controller provides the necessary features to implement off-line or DC to DC fixed frequency current-mode control schemes with a minimal external parts count. Internally implemented circuits include under-voltage lockout featuring start up current less than 1mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-channel MOSFETs, is low in the off state. Differences between members of this family are the under-voltage lockout thresholds and maximum duty cycle ranges. It is ideally suited to off-line applications.

• Low start-up current
• Automatic feed forward compensation
• Pulse-by-pulse current limiting
• Enhanced load response characteristics
• Under-voltage lockout with hysteresis
• Double pulse suppression
• High current totem pole output
• Internally trimmed bandgap reference
• Low RO Error amplifier
• Green product and no Sb/Br

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