STMicroelectronics LED1642GW
The LED1642GW is a monolithic, low voltage, low current power 16-bit shift register designed for LED panel displays. The LED1642GW guarantees 20 V output driving capability allowing the user to connect several LEDs in series. The current is programmed through an external resistor and can be adjusted by a 7-bit current gain register in two subranges.| Part No. | LED1642GW |
|---|---|
| Datasheet | LED1642GW Download |
| Manufacturer |  STMicroelectronics |
| Description | 16-channel LED driver |
| Buy | Stock & Price |
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: 3 V to 5.5 V
● Thermal shutdown and overtemperature alert
● 30 MHz 4-wires interface
● 20 V current generator rated voltage
APPLICATIONS
● Full color/monochrome large displays● LED signage
DESCRIPTION
In the output stage, sixteen regulated current sources provide from 3 mA to 40 mA constant current to drive the LEDs. 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.
