Wuhan Liyuan Information Technology Service Co., Ltd. introduces the NLSF595 serial (SPI bus) three-color LED driver from ON Semiconductor. The driver features advanced open-drain output, CMOS shift register manufacturing process, and overvoltage protection. It can be connected to a microcontroller through a standard serial (SPI) interface, and can control multiple three-color LEDs. It has characteristics such as low power consumption and high clock frequency.
The NLSF595 is a CMOS shift register with open‑drain outputs designed for driving three‑color LEDs via an SPI interface. It features parallel latch outputs, high‑current capability, and over‑voltage protection on all pins.
The document provides pin configurations, electrical characteristics, timing requirements, package dimensions for TSSOP‑16 and SOIC‑16, and typical application circuits, enabling designers to integrate the device into LED control systems. This manual is written in Chinese.
| Supply voltage (VCC) | 0.5 V to 7.0 V |
|---|---|
| Output voltage (VOUT) | 0 V to VCC + 7.0 V |
| Maximum clock frequency | > 25 MHz |
| Supply current (Icc) at 25 °C | 2.0 nA (max) |
| Static power consumption | 450 mW |
| Operating temperature range | -55 °C to +125 °C |
The device supports a maximum clock frequency greater than 25 MHz.
Each NLSF595 can control two three‑color LEDs; two devices cascaded can control five LEDs.
The typical supply current is 2.0 nA (maximum value).