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Home » NEWEST Products » New by Manufacturer » STMicroelectronics » ALED1642GW LED Display Driver - STM
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STMicroelectronics ALED1642GW LED Display Driver

STMicroelectronics ALED1642GW LED Display Driver

STMicroelectronics ALED1642GW LED Display Driver is a monolithic, low voltage, low current power 16-bit shift register designed for LED panel displays. The ALED1642GW 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 7-bit current gain register in two subranges. The brightness can be adjusted separately for each channel through a 12/16-bit grayscale control. A programmable turn-on and turn-off time (four different values are available) improves the system low noise generation performances.

Features
  • 16 constant current output channels
  • Output current: from 3 mA to 40 mA
  • 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
  • Up to 30MHz 4-wires interface
  • 20V current generator rated voltage

Applications
  • Full color/monochrome displays
  • Dashboard (backlighting led indicators)
  • Automotive Interior lighting
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