Demoboard XRP7618EVB

8-Channel Constant Linear LED Driver With Smart Talk

Topologie: Other
Eingangsspannung (min.): 4.20 V
Eingangsspannung (max.): 5.50 V

Erstveröffentlichung am 18.08.2011, Version 2.2.0 vom


The Exar XRP7618 is an 8-Channel, high voltage, constant-current sink LED driver capable of driving up to 100mA current per channel. With outputs rated at 30V, the XRP7618 can control strings of multiple LEDs with better than ±1.5% channel to channel current matching. LED channel current is programmed via an external resistor on this Exar XRP7618 8-Channel Constant Current LED Driver within a 10mA to 100mA range. Dimming control is supported through a standard PWM scheme of up to 25kHz or through an analog signal. Exar's XRP7618 features Smart Talk™ technology, when combined with a boost converter, it maximizes the overall system efficiency by dynamically reporting the minimum LED voltage necessary to maintain current regulation mode.


  • 8 Constant-Current Channels
  • Adjustable up to 100mA per Channel
  • Channel Paralleling for Higher Current
  • ±1.5% Channel to Channel Accuracy
  • Up to 30V LED Channel Voltage Range
  • Smart Talk Power Optimization
  • Parallel Operations Support
  • PWM and Analog Dimming
  • UVLO, Open LED & Over Temperature protection
  • 20-pin TSSOP (EP) package


  Artikel Nr. SPEC Produktserie Pins Reihen Gender Typ IR 1
Verpackung Muster
61300111121 PDF WR-PHD 2.54 mm THT Pin Header 1 Single Pin Header Gerade 3 Beutel
61300811121 PDF WR-PHD 2.54 mm THT Pin Header 8 Single Pin Header Gerade 3 Beutel
61300621121 PDF WR-PHD 2.54 mm THT Dual Pin Header 6 Dual Pin Header Board Stacker 3 Beutel