Datasheet4U Logo Datasheet4U.com

AS1121 - 16-Channel LED Driver

General Description

The AS1121 is a 16-channel, constant current-sink LED driver.

Each of the 16 channels can be individually adjusted by 4096-step greyscale PWM brightness control and 64-step constant-current sink (dot correction).

Key Features

  • Greyscale PWM Control: 12-Bit (4096 Steps) Dot Correction: 6-Bit (64 Steps) Drive Capability (Constant-Current Sink): 0 to 40mA LED Power Supply Voltage: up to 30V Supply Voltage Range: 3.1V to 3.6V SPI-Compatible Serial Interface Output Delay for controlled Inrush Current (factory set, can be turned off) Factory set rise- and fall-time for EMI improvement PWM Clock Rate: up to 10 MHz Data Transfer Clock Rate: up to 30 MHz CMOS Level I/O Diagnostic Features 32-pin TQFN 5x5 mm Package 3 Applicati.

📥 Download Datasheet

Datasheet Details

Part number AS1121
Manufacturer austriamicrosystems AG
File Size 799.84 KB
Description 16-Channel LED Driver
Datasheet download datasheet AS1121 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
AS1120 12 Channels Capacitive Touch Sensor IC ASI
AS1124 24W Powered Device Akros Silicon
AS1100 Serially Interfaced 8-Digit LED Driver AMSCO
AS1101 (AS1101 - AS1104) Low-Dropout LED Drivers AMSCO
AS1102 (AS1101 - AS1104) Low-Dropout LED Drivers AMSCO

Other Datasheets by austriamicrosystems AG

Part Number Description
AS1120 46-Segment LCD Driver
AS1122 12-Channel LED Driver
AS1123 16 -Channel LED Driver
AS1110 16-Channel LED Driver
AS1112 16-Channel LED Driver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Datasheet AS1121 16-Channel LED Driver with Dot Correction and Greyscale PWM Technical coantmesntAsGtill valid 1 General Description The AS1121 is a 16-channel, constant current-sink LED driver. Each of the 16 channels can be individually adjusted by 4096-step greyscale PWM brightness control and 64-step constant-current sink (dot correction). The dot correction circuitry adjusts the brightness variations between the AS1121 channels and other LED drivers. Greyscale control and dot correction circuitry are accessible via the SPI-compatible serial interface. A single external resistor sets the maximum current value of all 16 channels. The open LED detection function indicates a broken or disconnected LED at one or more of the outputs.