24-Channels LED driver with LED error detection and gain control

Quantity $ per Unit Savings
1 - 9$3.100%
10 - 24$2.7810%
25 - 99$2.6415%
100 - 249$2.2826%
250 - 499$2.1730%
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Parameter NameParameter Value
Input Voltage Min Volt3.0
Input Voltage Max Volt5.5
Packing TypeTape And Reel
RoHs compliantEcopack2
Package NameTQFP 48 7x7x1.0

The LED2472G is a monolithic, low voltage, low current power 24-bit shift register designed for LED panel displays with particular features oriented to indoor and outdoor LED screen billboards. The LED2472G guarantees 20 V of output driving capability, allowing several LEDs to be connected in series. The device is configured in 3 groups (red, green and blue) of 8 independently-controlled channels. The LED current can be separately regulated for each color within the range from 4 mA to 72 mA. This range is divided into two sub-ranges and the current can be adjusted within each range in 64 steps of resolution (6 bits per color). A single external resistor is required. All the controls and the shift register data are accessible via serial interface. A single 24-bit configuration register is used to choose features and settings to fit the application. The LED failure detection circuit checks 3 different conditions that can occur at the output line: short to GND, short to LED power supply rail or open channel. The auto power shutdown and auto power-on feature (selectable) allows the device to save power without any external intervention. Thermal management includes overtemperature flag and the output thermal shutdown (170 °C). The high clock frequency of up to 30 MHz makes the device suitable for high data rate transmission. A selectable gradual output delay reduces the inrush current. The supply voltage ranges from 3 V and 5.5 V.

Key features
  • 24 constant current output channels
  • Output current: from 4 mA to 72 mA
  • 8 x 3 independently controlled channels (RGB)
  • Current programmable through external resistor
  • 7-bit global current gain adjustment in two ranges
  • Error detection mode (both open and shorted LED)
  • Programmable shorted LED detection thresholds
  • Auto power-saving / auto wakeup
  • Gradual output delay (selectable)
  • Supply voltage: 3 V to 5.5 V
  • Thermal shutdown and thermal flag
  • Up to 30 MHz CLK 4 wires interface
  • 20 V current generators rated voltage