HSM16703

HSM16703-TD is a single-wire transmission three-channel LED constant current driver control IC, integrating MCU digital interface, data latch, and LED driver circuits. Via external MCU control, it supports independent grayscale adjustment and cascade control, making it suitable for color dot-matrix display applications in outdoor large-scale screens. The OUTR/G/B ports feature a default output current of 17mA with a port voltage rating of 30V. The IC requires minimal external components, offering a simple and reliable design.

Applications

• Full-color exposed light strings
• Magic color flexible/rigid LED strips
• Pixel displays
• Irregular-shaped displays
• Indoor LED decorative lighting

Key features

• VDD input voltage range: 2.5~26V
• OUT R/G/B port constant current: 17mA
• OUT R/G/B port power-on state: default off at power-up
• OUT R/G/B port voltage rating: 30V
• OUT R/G/B output grayscale levels: 256
• Single-wire return-to-zero (RZ) data protocol
• Same-frame display data synchronous refresh
• Serial cascaded data transmission with strong noise immunity
• Data transmission rate: 800Kbps
• Cascaded data reshaping output to prevent signal degradation