AS1109 LED Driver IC
8-channel 100mA direct LED driver IC
Features
- Open/Short error detection
- Low current diagnostic mode
- 100mA output current
- 50MHz SPI interface
Benefits
- Improved picture quality & reduced maintenance cost through identifying defect LEDs & its position
- No flickering during LED test
- Highest brightness of LEDs
- Allows high resolution external PWM via SPI
Product parameters
| Outputs [#] | 8 |
|---|---|
| LED Current per Output [mA] | 100 |
| Features | |
| Error Detection | Yes |
| Read-Back | Yes |
| LED-to-LED Matching [%] | 2 |
| Supply Voltage [V] | 3.0 to 5.5 |
| Package | SOIC150-16 \ SSOP150-16 \ TQFN(4x4)-16 |
General Description
The AS1109 is a 100mA 8-channel direct LED driver IC and offers on-chip diagnostics. It can detect open/short LED position during operation and offers a (flickerfree) low current diagnostic mode.
This product suits for the following applications:
- Public information displays
- Stadium displays
- Illumination
Tools
| Title | Category | Headline | Buy |
|---|---|---|---|
| AS1109EvalKit | Application Board | Evaluation Kit for AS1109 |
Technical Documents
| Name | Type | Description | Version | Language |
|---|---|---|---|---|
| AS1109_AN000137_1-00.pdf | Application Note | LED matrix display | 1-00 | English |
| AS1109_BD000247_1-00.png | Block Diagram | AS1109 Block Diagram | 1-00 | English |
| AS1109_DS000173_1-00.pdf | Datasheet | Document version 1.21 | 1-00 | English |
| AS1109_PD000259_1-00.png | Other Product Document | AS1109EvalKit Image | 1-00 | English |
| AS1109_UG000180_1-00.pdf | User Guide | Evaluation board | 1-00 | English |
Related Boards
Evaluation Kit for AS1109
AS1109EvalKit
The AS1109 is a constant current 8-bit LED driver with diagnostics. The AS1109 Evaluation Kit is powered via an external power supply and must also be controlled via an external device. This can be done with a standard 3-wire interface. Via the output connector different LEDs can be connected to the evaluation kit.