One-Wire Single LED Driver

  • Archived
  • This page contains information on a product that is no longer manufactured (discontinued). Specifications and information herein are available for historical reference only.

Product Details


System Features

  • 1 wire interface to control the device
  • Stand-alone blinking capability while training the sequence to blink
  • Sequence includes up to 3 blinking elements
  • 12-bit (4096 steps) LED ON and OFF timings for each blinking element:
    • ON timing is captured between 1 ms and 255 ms
    • OFF timing is captured between 20 ms and 5.1 s
  • 1.8 V compliant one-wire logic interface
  • Training Start, Training End, Run-Once, Run, Stop and Reset commands
  • High side current controlled LED driver with 1 mA to 20 mA max current in the LED set by an external resistor. 5 mA drive capability when no external resistor is connected
  • 110 mV max dropout voltage driver at 20 mA
  • Fully internal oscillator for sequence training, LED timing, Command and Sequencing Controls
  • Short circuit and thermal protection
  • 2.7 V to 5.5 V power supply
  • Very low quiescent current: < 0.75 μA
  • ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101
  • Latch-up testing is done to JEDEC Standard JESD78, which exceeds 100 mA
  • Temperature range: –40 ℃ to +85 ℃
  • Packages offered: TSSOP8, WLCSP6

Part numbers include: PCA9901DP, PCA9901UK.


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