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Home » NEWEST Products » New by Category » Semiconductors » Driver ICs » LED1642GW 16-Channel LED Drivers - STM
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STMicroelectronics LED1642GW 16-Channel LED Drivers

STMicroelectronics LED1642GW 16-Channel LED Drivers

STMicroelectronics LED1642GW 16-Channel LED Drivers are low voltage 40mA 16-channel drivers designed for LED panel displays. The LED1642GW guarantees 20V output driving capability allowing the user to connect several LEDs in series. In the output stage, sixteen regulated current sources provide from 3mA to 40mA constant current to drive the LEDs. The current is programmed through an external resistor and can be adjusted by a 7-bit current gain register in two sub-ranges. The brightness can be adjusted separately for each channel through a 12/16-bit grayscale control. The supply voltage range is between 3V and 5.5V.

Features
  • 16 constant current output channels
  • Output current: from 3mA to 40mA
  • Current programmable through external resistor
  • 7-bit global current gain adjustment in two ranges
  • 12/16-bit PWM grayscale brightness control
  • Programmable output turn-on/off time
  • Error detection mode (both open and shorted-LED)
  • Programmable shorted-LED detection thresholds
  • Auto power saving/auto-wakeup
  • Selectable SDO synchronization on the CLK falling edge

  • Gradual output delay (selectable)
  • Supply voltage: 3V to 5.5V
  • Thermal shutdown and overtemperature alert
  • 30MHz 4-wires interface
  • 20V current generator rated voltage
Applications
  • Full color/monochrome large displays
  • LED signage
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Block Diagram
  • STMicroelectronics