Коммутационные контроллеры UCC28C42D

ШИМ контроллер токового режима , 20В-9В питание, 1МГц, 18В/1A выход, SOIC-8

The UCC28C42D is a high-performance current-mode Pulse Width Modulation (PWM) Controller with an enhanced BiCMOS version with pin-for-pin compatibility to the industry standard. Providing necessary features to control fixed frequency, peak current-mode power supplies, this family offers the following performance advantages. The device offers high-frequency operation up to 1MHz with low start-up and operating currents, thus minimizing start-up loss and low operating power consumption for improved efficiency. The device also features a very fast current-sense-to-output delay time of 35ns and a ±1A peak output current capability with improved rise and fall times for driving large external MOSFETs directly.

• Fast 35ns Cycle-by-cycle overcurrent limiting
• ±1A Peak output current
• Rail-to-rail output swings with 25ns rise and 20ns fall times
• ±1% Initial trimmed 2.5V Error amplifier reference
• Trimmed oscillator discharge current
• Green product and no Sb/Br

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