TM1642 Constant Current LED Driver IC | Key Scan Interface | SOP28 | New & Original

TM1642 Constant Current LED Driver IC | Key Scan Interface | SOP28 | New & Original

Product Description:
The TM1642 is a constant current LED driver IC designed for controlling segment code LED displays with an integrated key scan interface. This high-performance IC features an MCU digital interface, data flip-latch, LED high-voltage driver, and key scan circuitry. It offers excellent reliability and is particularly suitable for driving segment LED displays in various consumer electronics.

Key Features:

• CMOS technology ensures low power consumption and efficient operation.
• Supports multiple display modes (10 segments × 7 bits to 13 segments × 4 bits).
• SEG constant current drive with maximum voltage of VDD – 1V.
• Low channel difference: Maximum ±3%, chip-to-chip tolerance ±6%.
• Key scan interface (8 x 2) for efficient user input handling.
• 8-level adjustable constant current for controlling display brightness.
• Serial interface (CLK, STB, DIN) for seamless integration.
• Built-in RC oscillator with 450 KHz ± 5% for stable operation.
• Automatic power-on reset circuit ensures reliable startup.
• SOP28 package offers easy integration into various designs.

Applications:
The TM1642 is ideal for use in constant current display driving applications, especially for segment code LED displays in consumer electronics such as digital displays, home appliances, and other LED-based devices.