UCC2801N

TEXAS INSTRUMENTS  UCC2801N.  芯片, 控制器, PWM, 低功率, BICOMOS

The is a low-power BiCMOS current-mode Pulse Width Modulation PWM Controller contains all of the control and drive components required for off-line and DC to DC fixed frequency current-mode switching power supplies with minimal parts count. It offers the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input. It has the same pin configuration as the UC2842/3/4/5 family and also offers the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input. It offers choice of maximum duty cycle and critical voltage levels.

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Internal soft start

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Internal fault soft start

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Internal leading-edge blanking of the current sense signal

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70ns Typical response from current-sense to gate-drive output

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1.5% Tolerance voltage reference

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Green product and no Sb/Br