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AS1121 LED Driver IC
16-channel 40mA 30V PWM LED driver IC
Features
- 12-bit PWM control (4096 steps)
- 6-bit analog current control
- Open/Short error detection
- Fast output drivers
Benefits
- 6.8 billion colors
- RGB LED white point adjustment
- Improved picture quality & reduced maintaince cost through identifying defect LEDs & its position
- Excellent PWM performance over all duty cycles
Product parameters
| Outputs [#] | 16 |
|---|---|
| LED Current per Output [mA] | 40 |
| Features | 12-bit PWM, 6-bit DOT, low EMI |
| Error Detection | Yes |
| Read-Back | Yes |
| LED-to-LED Matching [%] | 1.5 |
| Supply Voltage [V] | 3.1 to 3.6V Logic; 30V LED |
| Package | TQFN(5x5)-32 |
General Description
The AS1121 is a SPI interfaced, 40mA 16-channel direct LED driver IC with 12-bit internal PWM and 6-bit analog current adjustment. It can detect open/short LED position during operation. The AS1121 allows up to 30V on the LED outputs.
This product suits for the following applications:
- Public information displays
- Stadium displays
- Illumination
- Ambient light
- TV ambient light
Tools
| Title | Category | Headline | Buy |
|---|---|---|---|
| AS1121EvalKit | Application Board | Evaluation Kit for AS1121 |
Resources
| Name | Type | Description | Language |
|---|---|---|---|
| AS1121_SW000164_1-00.zip | Software | Eval SW 1v04 | English |
Technical Documents
| Name | Type | Description | Version | Language |
|---|---|---|---|---|
| AS1121_BD000256_1-00.png | Block Diagram | AS1121 Block Diagram | 1-00 | English |
| AS1121_DS000218_1-00.pdf | Datasheet | Document version 1.01 | 1-00 | English |
| AS1121_UG000197_2-00.pdf | User Guide | Demo board | 2-00 | English |
Asset Publisher
Related Boards
Evaluation Kit for AS1121
AS1121EvalKit
The demo kit includes the AS1121 Evaluation Board, a 16 single LEDs connecting board, a 5 RGB LEDs connecting board and the required SW. Key Features: - 16 single LEDs - 5 RGB - LEDs - 12-bit PWM control - 6-bit current control