| Channel |
1 |
| Control Interface |
IIC |
| Current (Max) (A) |
1.5 |
| Torch Current (Max) (A) |
0.376 |
| Flash Current Accuracy (%) |
7 |
| Flash Timer (Min) (s) |
0.04 |
| Flash Timer (Max) (s) |
1.6 |
| IO Level (V) |
1.8 |
| Temperature |
-40℃~85℃ |
| Indicator mode |
NO |
| Package (mm) |
WLCSP 1.626X1.332-12B |
•1.5A Accurate and Programmable LED Current Source
➢Flash：23.4mA~1.5A，64 levels 23.44mA/level
➢Torch：5.4mA~376mA，64 levels
5.89mA/level
➢Flash Timeout：40ms~1.6s，16 levels
➢Flash/Torch/IR Mode
•High Efficiency: 85%
•Optimized Flash LED Current During Low Battery Conditions (IVFM)
•Hardware Strobe Enable (STROBE)
•Hardware Torch Enable (TORCH/TEMP)
•Remote NTC Monitoring
•Synchronization Input for RF Power Amplifier Pulse Events (TX)
•400kHz I2C：AW3648（I2C Address=0x63）
•0.4mm Pitch, CSP-12 Package
The AW3648 is a LED flash driver that provides a high level of adjustability within a small solution size. The AW3648 utilizes a 2MHz in 4MHz fixed-frequency synchronous boost converter to provide power to the 1.5A constant current LED sources. The 64 levels current source provides the flexibility to adjust the current of LED in Flash/Torch/IR modes. The AW3648 provides three IVFM protection modes to prevent system reset in shutdown under low battery condition.
The AW3648 is controlled via an I2C-compatible interface. The main features of the AW3648 include: flash/torch current, flash timeout duration, IVFM, TX interrupt, and NTC thermistor monitor. The AW3648 also provides hardware flash and hardware torch pins (STROBE and TORCH/TEMP) to control Flash/Torch events.
The 2MHz in 4MHz switching frequency options, overvoltage protection (OVP), and adjustable current limit allow for the use of tiny, low-profile inductors and 10-µF ceramic capacitors. The device operates over a –40°C to +85°C ambient temperature range.
The AW3648 is available in small 0.4mm pitch 1.626mm×1.332mm CSP-12 package.
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