STP04CM596M1

Overview

The STP04CM596M1 is a monolithic, medium-voltage, low-current power shift register designed for high-power LED applications. It integrates a 4-bit serial-in, parallel-out shift register with four constant current output channels. The device operates on a supply voltage range of 3.3V to 5.5V and delivers up to 500mA per channel at an output voltage of 19V. It supports dimming functionality via a dedicated input and features a clock frequency of 25MHz. Packaged in a 14-SOIC format, it is rated for operation between -40°C and 125°C.

Feature Summary

• Integrates a 4-bit shift register with four independent constant current output channels for direct LED control
• Supports linear dimming through a dedicated input pin for brightness adjustment
• Designed for high-power LED applications with internal switching capability

Applications

• High-power LED panel displays
• LED lighting modules requiring serial data control
• Digital signage driven by shift register architectures

Procurement Notes

Verify the specific suffix M1 against the manufacturer's official documentation to confirm package type and tape-and-reel specifications. Confirm that the component status remains active or obsolete as required for your production timeline. Ensure compatibility with existing PCB footprints for the 14-SOIC package before finalizing procurement orders.

Selection Notes

Select this component when a compact solution is needed for driving multiple high-power LEDs from a single serial interface. The integrated shift register reduces microcontroller pin usage compared to parallel drivers. Consider the 500mA output capability and 19V compliance voltage to ensure adequate headroom for the target LED string configuration and thermal management requirements.

Part Context

This part belongs to the STP series of power shift registers from STMicroelectronics, which are optimized for LED matrix and display applications. Unlike general-purpose logic shift registers, these devices combine digital logic with high-current analog outputs. The STP04CM596M1 specifically offers a lower current rating than some higher-power variants but maintains the same serial interface topology for system consistency.

Replacement Considerations

Check for the STP04CM05B1R as a potential alternative within the same family, noting differences in output current (400mA vs 500mA) and package type (DIP vs SOIC). Verify electrical parameter compatibility before substitution.