Product Details

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Block Diagram

Block diagram: PCA9922BS, PCA9922N, PCA9922PW

Features

  • 25 MHz serial interface
  • 3.3 V to 5.5 V operation
  • 8 LED low side constant current outputs
  • Global control for the 8 LED outputs variable between 15 mA to 60 mA
  • 15 mA to 60 mA maximum current for all 8 output channels set by an external resistor
  • Constant current matching at 25 ℃, VDD = 5.0 V
  • Bit-to-bit: ±6 %
  • Chip-to-chip: ±10 %
  • Gradual turn-on/turn-off output to limit EMI
  • Error detection mode for line open, output short to ground, LED open and LED short
  • -40 ℃ to +85 ℃ operation
  • 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
  • Packages offered: DIP16, TSSOP16, HVQFN20

Target Applications

  • Full color, multi-color, monochrome LED signs
  • LED billboard displays
  • Traffic display signs
  • Transportation and commercial LED signs

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