The new TLC59282 from Texas Instruments is a serial-controlled, 16-channel constant-current sink LED driver with four-channel grouped delay.
It simplifies design in LED display applications including video displays, message boards, amusement illumination and LED indicators.
The IC minimises simultaneous switching noise by staggering the switching of the LED outputs, lowering the peak switching current transients and facilitating low-cost, two-layer printed circuit board (PCB) routing in LED modules. With traditional multichannel LED drivers, four-layer PCB routing is required to prevent switching transients from causing corruption of the serial data communication path during output blanking. In addition to electromagnetic noise reduction, the TLC59282 has high-precision channel-to-channel (±0,6%) and chip-to-chip (±1%) accuracy, which ensures that uniform current is supplied to each LED string. A 30 nanosecond blank pulse allows for high refresh rates in multiplexed applications.
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