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CAT4026 Dataheets PDF



Part Number CAT4026
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description 6-Channel LED Controller
Datasheet CAT4026 DatasheetCAT4026 Datasheet (PDF)

CAT4026 6-Channel LED Controller with Fault Diagnostics for Large Panel LED Backlighting Description The CAT4026 is a high performance, large panel LED controller designed to control six constant current high voltage LED strings. Added control circuitry monitors the lowest cathode voltage and generates a feedback control signal to an external Switch Mode Power Supply (SMPS) to provide a low cost and efficient solution for large panel high voltage LED backlighting. Each LED channel current is ac.

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CAT4026 6-Channel LED Controller with Fault Diagnostics for Large Panel LED Backlighting Description The CAT4026 is a high performance, large panel LED controller designed to control six constant current high voltage LED strings. Added control circuitry monitors the lowest cathode voltage and generates a feedback control signal to an external Switch Mode Power Supply (SMPS) to provide a low cost and efficient solution for large panel high voltage LED backlighting. Each LED channel current is accurately matched and controlled by sensing an external resistor in series with a low cost bipolar power transistor. This allows current and heat dissipation concerns to be mitigated from the CAT4026 device package. For added system reliability, both Open−Cathode−Anode (OCA) and Shorted−Cathode−Anode (SCA) fault detection circuitry has been included along with independent Fault flag logic outputs for diagnostic purposes. LED current dimming in all six channels can be precisely controlled .


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