CATALYST CAT4240 handbook

Update: 28 September, 2023

The CAT4240 is a DC/DC step-up converter that delivers an accurate constant current ideal for driving LEDs. Operation at a fixed switching frequency of 1MHz allows the device to be used with small value external ceramic capacitors and inductor. LEDs connected in series are driven with a regulated current set by the external resistor R1. The CAT4240 high-voltage output stage is perfect for driving mid-size and large panel displays containing up to ten white LEDs in series. LED dimming can be done by using a DC voltage, a logic signal, or a pulse width modulation (PWM) signal. The shutdown input pin allows the device to be placed in power-down mode with “zero” quiescent current. In addition to

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Brand: CATALYST

File format: PDF

Size: 280 KB

MD5 Checksum: 3A6478ADD927F1606E6EB26F797F6193

Publication date: 10 April, 2012

Downloads: -

PDF Link: CATALYST CAT4240 handbook PDF