STP16CPC26PTR

Overview

The STP16CPC26PTR is a monolithic, low-voltage, 16-bit constant current LED sink driver manufactured by STMicroelectronics. It features a 16-bit shift register and data latches for serial-to-parallel conversion. The device provides sixteen regulated current generators with an output range of 5 mA to 90 mA, adjustable via an external resistor. It supports a maximum clock frequency of 30 MHz and guarantees a 20 V driving capability per channel. The power supply voltage ranges from 3 V to 5.5 V. Thermal shutdown protection activates at 170 °C with approximately 15 °C hysteresis. The component is housed in a 24-QSOP package.

Feature Summary

• Integrates 16 constant current output channels with ±1% typical bit-to-bit accuracy.
• Features high-speed 30 MHz clock frequency suitable for high data rate transmission.
• Includes thermal shutdown protection for overtemperature event assurance.
• Allows analog brightness adjustment from 0% to 100% via the OE pin.

Applications

• LED matrix displays
• General lighting systems
• High data rate LED transmission interfaces

Procurement Notes

Verify the specific package variant QSOP24 against design requirements. Confirm that the operating temperature range of -40°C to +125°C aligns with the target environment. Ensure the external resistor selection correctly sets the desired current within the 5 mA to 90 mA range. Check RoHS3 compliance status if required by regional regulations. Validate the 3V to 5.5V supply voltage compatibility with the system power architecture.

Selection Notes

Select this component when a 16-channel constant current sink driver is required for LED applications. It is suitable for designs needing analog dimming control and high-speed serial data input. Consider the 20V output rating for series LED configurations. Evaluate the 24-QSOP package constraints for PCB layout. Compare against other packages like TSSOP-EP if exposed pad thermal performance is critical.

Part Context

This part belongs to the STP16CPC26 family of LED drivers. The 'PTR' suffix indicates the 24-QSOP package variant. Other variants include XTR for TSSOP-EP. The family offers similar electrical characteristics but differs in physical packaging. This specific model is designed for surface-mount assembly in compact electronic devices requiring precise LED current regulation.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should verify direct pin-to-pin compatibility with alternative manufacturers before substitution. Package dimensions for 24-QSOP must be strictly matched to existing footprints.