18-channel I2C constant-current RGB LED driver
In smart homes and other applications that utilize human-machine-interaction,high-performance RGB LED drivers are required. LED animation effects such as flashing, breathing,and chasing greatly improve user experience, and minimal system noise is essential.
The LP50xx device is an 18- or 24-channel constant current sink LED driver. The LP50xxdevice includes integrated color mixing and brightness control, and pre-configuration simplifiesthe software coding process. Integrated 12-bit, 29 kHz PWM generators for each channel enablesmooth, vivid color for LEDs, and eliminate audible noise.
The LP50xx device controls each LED output with a 12-bit PWM resolution at 29-kHzswitching frequency, which helps achieve a smooth dimming effect and eliminates audible noise. Theindependent color mixing and intensity control registers make the software coding straightforward.When targeting a fade-in, fade-out type breathing effect, the global R, G, B bank control reducesthe microcontroller loading significantly. The LP50xx device also implements a PWM phase-shiftingfunction to help reduce the input power budget when LEDs turn on simultaneously.
The LP50xx device implements an automatic power-saving mode to achieve ultralow quiescentcurrent. When channels are all off for 30 ms, the device total power consumption is down to 10 µA,which makes the LP50xx device a potential choice for battery-powered end equipment.
Features for the LP5018
- Operating Voltage Range:
- VCC Range: 2.7 V to 5.5 V
- EN, SDA, and SCL Pins Compatible With
1.8-V, 3.3-V, and 5-V Power Rails - Output Maximum Voltage: 6 V
- 24 Constant-Current Sinks With High Precision
- 25.5 mA Maximum per Channel With VCC in Full Range
- 35 mA Maximum per Channel When VCC ≥ 3.3 V
- Device-to-Device Error: ±7%; Channel-to-Channel Error: ±7%
- Ultralow Quiescent Current:
- Shutdown Mode: 1 µA (Maximum) With EN Low
- Power Saving Mode: 10 µA (Typical) With EN High and All LEDs Off for > 30 ms
- Integrated 12-Bit, 29-kHz PWM Generator for Each Channel:
- Independent Color-Mixing Register Per Channel
- Independent Brightness-Control Register Per RGB LED Module
- Optional Logarithmic- or Linear-Scale Brightness Control
- Integrated 3-Phase PWM-Shifting Scheme
- 3 Programmable Banks (R, G, B) for Easy Software Control of Each Color
- 2 External Hardware Address Pins Allow Connecting up to 4 Devices
- Broadcast Slave Address Allows Configuring Multiple Devices Simultaneously
- Auto-Increment Allows Writing or Reading Consecutive Registers Within One Transmission
- Up to 400-kHz Fast-Mode I2C Speed
4.9
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Reviews
Reviews
Q How to make a payment?
E****R 18/11/2024
A We accept various payment methods including bank transfers, credit cards, and PayPal. Please refer to our payment page during checkout for detailed instructions on how to complete your payment. If you have any questions or need assistance with payment, please contact our customer support team.
18/11/2024
Q How will the products be shipped?
T****k 16/08/2024
A We ship products through reliable courier services such as DHL, UPS, and FedEx. Shipping fees and delivery times may vary depending on the destination. You will receive a tracking number once your order has been dispatched, allowing you to track the status of your shipment. Please note that shipping times may vary based on location and availability.
16/08/2024
Q How is warranty provided?
L****Y 08/05/2024
A We offer a warranty on all of our products. The warranty period and conditions vary depending on the product category. For specific warranty information, please refer to the product page or your purchase agreement. If you encounter any issues with a product during the warranty period, please contact our customer service team with your proof of purchase, and we will guide you through the warranty claim process.
08/05/2024
★ ★ ★ ★ ★ 16/08/2024
Good service!
(156)
★ ★ ★ ★ ★ 23/07/2024
Good!
(982)
★ ★ ★ ★ ★ 23/07/2024
Good quality!
(982)