ST LED1642GWQTR

线性3V5.5V40mA

Overview

The LED1642GWQTR is a monolithic, low voltage, low current power 16-bit shift register designed for LED panel displays. The LED1642GWQTR guarantees 20 V output driving capability allowing the user to connect several LEDs in series. In the output stage, sixteen regulated current sources provide from 3 mA to 40 mA 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 subranges. The brightness can be adjusted separately for each channel through 12/16-bit grayscale control.

Programmable turn-on and turn-off time (four different values available) improves the low noise generation performance of the system. Open/short error detection mode is available in the LED1642GW. The auto power-shutdown and auto power-on features (selectable) allow the device to save power without external intervention. Thermal management includes an overtemperature data alert and output thermal shutdown (170 °C). The high clock frequency is up to 30 MHz and it makes the device suitable for high data rate transmission. A selectable gradual output delay reduces the inrush current, whereas the selectable SDO synchronization feature works when the device is used in daisy-chain configuration. The supply voltage range is between 3 V and 5.5 V.

Features

Tape & Reel (TR) Package
Available in the 24-VFQFN Exposed Pad package
Operating temperature of -40°C~85°C TA
Supply voltage of 3.3V
Operating with the supply voltage of 3.3V
Switching frequency of 30MHz

Surface Mount Mounting Type

Applications

There are a lot of STMicroelectronics
LED1642GWQTR LED Driver ICs applications.

• Street lighting
• Stage and Studio lighting
• Refrigeration lighting
• Portable lighting
• Gallery lighting
• Museum lighting
• High-end retail lighting
• Medical surgery lighting
• Replacement lamps
• Panel lighting