| Channel |
198 |
| Global Current Level |
1 |
| Current Levels for Color-Mixing |
1 |
| Current Levels for Dimming |
256 |
| Charging Indicator |
NO |
| Control Interface |
IIC |
| Power Supply (Max) (V) |
5.5 |
| Global Max Current(mA) |
40 |
| IO Level (V) |
1.8
3.3 |
| Audio Sync. |
NO |
| Power Supply (Min) (V) |
2.7 |
| Auto Breath |
NO |
| Temperature |
-40℃~105℃ |
| Topology |
Matrix |
| Package (mm) |
QFN 5X5-40L |
18 current sinks, 11 current switches, up to drive 198 LEDs or 66 RGBs.
Programmable matrix size
Individual 256-level PWM for dimming
High-precision current sinks
Device-to-device error: ±7%
Channel-to-channel error: ±7%
EMI and audible noise reduction
Spread spectrum function
Programmable slew rate control
Programmable H/L logic
1.4V/0.4V
2.4V/0.6V
Individual 198 LEDs open/short detection
Multiple-device clock synchronization by SYNC pin
De-Ghost
1MHz I2C interface, 16 selectable addresses
Power supply: 2.7V~5.5V
QFN 5mmx5mmx0.55mm-40L package
AW20198C is an 18x11 matrix LED driver programmed via an I2C compatible interface. Each channel has individual 8-bit PWM current setting for brightness control. The global current of each channel is determined by the external resistor REXT.
Spread spectrum and slew rate control technology are utilized to reduce EMI and audible noise caused by MLCC when LEDs turn on or off simultaneously.
AW20198C can be turned off with minimum current consumption by either pulling the EN pin low or using the software reset.
AW20198C is available in QFN 5mmx5mmx 0.55mm-40L package. It operates from 2.7V to 5.5V over the temperature range of -40°C to +105°C.