Packaging information
| Package | Pins DSBGA (YCH) | 8 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 12,000 | LARGE T&R |
Features for the LP5817
- Operating voltage range
- VCC range: 2.5V to 5.5V
- Logic pins compatible with 1.8V, 3.3V, and 5V
- Output voltage up to 5.5V
- 3 constant current sinks with high precision
- 0.1mA to 51mA per channel
- Channel-to-channel error: ±3% (maximum)
- Ultra-low headroom voltage: 135mV (maximum) at 25.5mA; 275mV (maximum) at 51mA
- Ultra-low power consumption
- Shutdown: ISD = 0.1µA (typical)
- Standby: ISTB = 22µA (typical)
- Active:
- INOR = 0.15mA (typical) when disable output channel
- INOR = 0.23mA (typical) when LED current = 25.5mA
- Analog dimming (current gain control)
- Global 1-bit Maximum Current (MC): 25.5mA or 51mA
- Individual 8-bits Dot Current (DC) setting
- PWM dimming up to audible-noise-free 23kHz
- Individual 8-bits PWM dimming resolution
- Linear or exponential dimming curves
- 400kHz (maximum) I2C interface
- ESD: 4kV HBM, 1.5kV CDM
- Package
- 2.1mm × 1.6mm SOT583-8 with 0.5mm pitch
- 1.4mm × 0.7mm DSBGA-8 with 0.35mm pitch
- –40°C to 125°C operating temperature range
Description for the LP5817
The LP5817 is a 3-channel RGB LED driver. The device has ultra-low operation current with 0.1µA (typical) in shutdown mode, 0.15mA (typical) when enable device and 0.2mA (typical) when illuminate LEDs.
Both analog dimming and PWM dimming methods are adopted to achieve powerful dimming performance. The output current of each LED can be adjusted with 256 steps from 0.1mA to 25.5mA or 0.2mA to 51mA. The 8-bits PWM generator enables smooth and audible-noise-free dimming control for LED brightness.