Specifications
SKU: 8931062
IC LED DRIVER RGLTR DIM 24WQFN
Parameter | Description | Min | Typ | Max | Unit |
---|---|---|---|---|---|
Supply Voltage (VDD) | Operating supply voltage | 2.7 | - | 5.5 | V |
Operating Temperature | Ambient temperature range for operation | -40 | - | 85 | °C |
Output Current per Channel | Maximum output current per LED channel | - | - | 60 | mA |
Number of Channels | Number of individually controllable LED channels | - | 9 | - | - |
PWM Resolution | Pulse width modulation resolution for brightness control | - | 16-bit | - | - |
I2C Bus Speed | Communication speed with I2C interface | 100 | - | 400 | kbps |
Standby Current | Quiescent current in standby mode | - | 1 | - | μA |
Shutdown Current | Quiescent current in shutdown mode | - | 0.1 | - | μA |
Power-On Reset Time | Time required for power-on reset | - | 10 | - | ms |
Thermal Resistance (θJA) | Junction-to-ambient thermal resistance | - | - | 120 | °C/W |
Instructions for Use
Power Supply:
- Ensure the supply voltage (VDD) is within the range of 2.7V to 5.5V.
- Connect the VDD pin to the power source and GND pin to ground.
Temperature Considerations:
- The device is designed to operate within an ambient temperature range of -40°C to 85°C.
- Ensure proper heat dissipation if operating at higher temperatures.
LED Connections:
- Connect each LED to one of the 9 individually controllable channels.
- Do not exceed the maximum output current of 60mA per channel.
I2C Interface:
- Use the I2C interface to communicate with the device.
- Set the I2C bus speed to either 100kbps or 400kbps depending on your application requirements.
PWM Control:
- Utilize the 16-bit PWM resolution to control the brightness of each LED channel.
- Configure the PWM settings via the I2C interface.
Standby and Shutdown Modes:
- To enter standby mode, set the appropriate register bit. The device will consume approximately 1μA.
- To enter shutdown mode, set the appropriate register bit. The device will consume approximately 0.1μA.
Power-On Reset:
- After applying power, the device will perform a power-on reset, which takes approximately 10ms.
- Do not send commands to the device during this time.
Thermal Management:
- Ensure the thermal resistance (θJA) does not exceed 120°C/W to prevent overheating.
- Use a heatsink or other cooling methods if necessary.
For detailed register configurations and advanced features, refer to the datasheet provided by the manufacturer.
(For reference only)Inquiry - LP55231SQX/NOPB