UC3824

• Product Introduction

The PWM control unit series in the UC1824 is best suited for high frequencies for switching power supply applications. Special attention is given to minimize the propagation delay of the amplifier logic circuit by comparing and maximizing the bandwidth and slew rate of errors. The controller is designed for voltage mode systems in both modes, or with the current input voltage feedforward function.

The protection circuitry includes a threshold current-limited comparator with a 1-V threshold current-limited comparator, a TTL shut-off port compatible, and a soft-start pin for maximum duty cycle clamp doubles. The logic is to completely lock the free operation of providing jitter and prohibit multiple pulses from being output. The hysteresis of the 800 mV lock-in section ensures low start-up current.

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